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############################################ |
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# |
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# $Id: Tangram.pm,v 1.47 2004/08/31 14:26:08 jonen Exp $ |
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# |
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# $Log: Tangram.pm,v $ |
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# Revision 1.47 2004/08/31 14:26:08 jonen |
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# updated |
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# |
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# Revision 1.46 2004/05/06 12:54:34 jonen |
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# + bugfix related to multiple select-'filter' |
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# |
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# Revision 1.45 2003/12/14 01:48:36 jonen |
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# small HACK at _insertChildNode: some special Childnodes should not be created because existing objects have to be selected! |
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# TODO: make this more generic, e.g. implement a special flag at Schema |
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# |
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# Revision 1.44 2003/12/04 01:01:50 joko |
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# + sendQuery now returns result even on crud=UPDATE |
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# |
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# Revision 1.43 2003/07/02 11:07:12 jonen |
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# re-activate filtering of results *after* results are fetched from tangram |
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# (needed for e.g. UserManagment) |
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# |
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# Revision 1.42 2003/07/01 23:24:17 joko |
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# now using package before using function |
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# |
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# Revision 1.41 2003/06/29 02:03:45 joko |
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# fix:? initialize schema on startup |
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# |
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# Revision 1.40 2003/06/25 22:57:54 joko |
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# major rework of "sub sendQuery / sub getListFiltered": now should be capable of "sorting" |
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# |
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# Revision 1.39 2003/06/06 11:40:40 jonen |
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# fixed bug at 'getFilteredList' |
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# |
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# Revision 1.38 2003/05/13 16:38:38 joko |
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# problems with "tied" on 5.6.1/win32 |
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# |
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# Revision 1.37 2003/05/10 17:37:39 jonen |
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# corrected last commit |
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# |
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# Revision 1.36 2003/05/10 17:31:18 jonen |
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# + added new functions related to 'create' item |
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# - createNode() |
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# # creates non-persistent 'deep dummy filled' object |
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# - insertChildNode() |
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# # inserts child node at given parent (child node haven't to exists, |
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# createNode will be injected transparently) |
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# |
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# Revision 1.35 2003/04/19 16:09:48 jonen |
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# + added operator dispatching (currently for getting ref-type) at 'getListFiltered' |
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# |
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# Revision 1.34 2003/04/11 01:18:53 joko |
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# sendQuery: |
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# + introduced crud action 'DELETE' |
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# |
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# Revision 1.33 2003/04/09 06:07:43 joko |
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# revamped 'sub sendQuery' |
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# |
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# Revision 1.32 2003/04/08 22:52:22 joko |
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# modified 'querySchema': better behaviour regarding filtering result |
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# |
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# Revision 1.31 2003/04/05 21:24:09 joko |
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# modified 'sub getChildNodes': now contains code from 'querySchema' |
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# |
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# Revision 1.30 2003/03/27 15:31:14 joko |
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# fixes to modules regarding new namespace(s) below Data::Mungle::* |
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# |
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# Revision 1.29 2003/02/21 01:47:18 joko |
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# purged old code |
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# minor cosmetics |
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# |
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# Revision 1.28 2003/02/20 20:20:26 joko |
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# tried to get auto-disconnect working again - failed with that |
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# |
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# Revision 1.27 2003/01/31 06:30:59 joko |
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# + enabled 'sendQuery' |
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# |
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# Revision 1.26 2003/01/30 22:29:47 joko |
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# + fixed module usage (removed dependency on 'libp.pm') |
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# |
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# Revision 1.25 2003/01/19 02:30:05 joko |
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# + fix: modified call to '_initSchema' |
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# |
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# Revision 1.24 2002/12/22 14:13:01 joko |
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# + sub dropDb |
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# |
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# Revision 1.23 2002/12/19 16:31:53 joko |
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# +- renamed sub to 'rebuildDb' |
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# |
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# Revision 1.22 2002/12/18 22:28:16 jonen |
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# + added extended logging at 'getObjectByGuid()' |
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# |
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# Revision 1.21 2002/12/16 22:20:49 jonen |
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# + fixed bug at 'getObjectByGuid()' |
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# |
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# Revision 1.20 2002/12/16 20:49:17 jonen |
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# + added sub 'getObjectByGuid()' |
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# + added functionality to use 'getObjectByGuid' at 'getObjectAsHash()' |
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# |
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# Revision 1.19 2002/12/16 06:46:09 joko |
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# + attempt to introduce a generic '_patchSchema' - cancelled! |
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# |
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# Revision 1.18 2002/12/13 21:48:07 joko |
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# + fix to 'sub sendQuery' |
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# |
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# Revision 1.17 2002/12/12 02:51:09 joko |
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# + cosmetics |
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# |
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# Revision 1.16 2002/12/11 06:54:10 joko |
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# + fix: encapsulated object-loading inside an 'eval' |
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# |
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# Revision 1.15 2002/12/05 13:55:21 joko |
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# + now utilizing 'expand' instead of 'var_deref' |
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# + played around with having fresh-objects - no progress.... |
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# |
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# Revision 1.14 2002/12/05 09:40:30 jonen |
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# + added option->{destroy} at getObject for unloading all instance |
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# |
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# Revision 1.13 2002/12/05 07:59:04 joko |
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# + now using Tie::SecureHash as a base for the COREHANDLE |
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# + former public COREHANDLE becomes private _COREHANDLE now |
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# + sub getCOREHANDLE |
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# |
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# Revision 1.12 2002/12/04 11:34:49 joko |
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# - $schema_tangram doesn't have to be in class? |
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# |
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# Revision 1.11 2002/12/04 08:54:08 jonen |
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# + untested bugfix: undef($object) after transform to hash at getObjectAsHash |
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# |
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# Revision 1.10 2002/12/03 15:53:23 joko |
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# + small bugfix regarding object hierarchy |
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# |
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# Revision 1.9 2002/12/03 05:29:40 joko |
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# + sub getObject |
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# + sub getObjectAsHash |
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# |
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# Revision 1.8 2002/12/01 22:25:51 joko |
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# + now utilizing metadata from storage locator when connecting to DBI in "raw"-mode |
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# |
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# Revision 1.7 2002/12/01 04:46:19 joko |
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# + sub eraseAll |
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# |
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# Revision 1.6 2002/11/29 05:02:30 joko |
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# - sub getNewPerlObjectByPkgName (moved to libp.pm) |
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# + sub getMetaInfo |
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# - sub existsChildNode (moved to Abstract.pm) |
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# + sub getListUnfiltered |
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# + sub getListFiltered |
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# + sub createCursor |
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# + sub createSet |
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# + sub sendQuery |
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# |
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# Revision 1.5 2002/11/17 06:35:18 joko |
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# + locator metadata can now be reached via ->{locator} |
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# - getChildNodes is now wrapped via COREHANDLE |
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# |
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# Revision 1.4 2002/10/25 11:44:44 joko |
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# + sub _initSchema |
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# + sub existsChildNode |
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# + sub testIntegrity |
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# + sub rebuildDbAndSchema |
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# |
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# Revision 1.3 2002/10/17 03:56:55 joko |
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# + bugfix: trapped eval error |
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# |
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# Revision 1.2 2002/10/17 00:10:05 joko |
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# + removed dependency from tsobj.pm, schema is now independent |
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# + sub getNewPerlObjectByPkgName |
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# + sub deploySchema |
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# + sub retreatSchema |
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# |
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# Revision 1.1 2002/10/10 03:44:07 cvsjoko |
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# + new |
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# |
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############################################ |
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|
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|
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package Data::Storage::Handler::Tangram; |
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|
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use strict; |
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use warnings; |
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|
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use base ("Data::Storage::Handler"); |
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use base ("Data::Storage::Handler::Abstract"); |
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|
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|
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use Data::Dumper; |
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use Tangram; |
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use Class::Tangram; |
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|
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use DesignPattern::Object; |
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use Data::Storage::Result::Tangram; |
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use Data::Mungle::Compare::Struct qw( isEmpty ); |
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use Data::Mungle::Transform::Deep qw( expand deep_copy merge_to ); |
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|
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# get logger instance |
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my $logger = Log::Dispatch::Config->instance; |
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|
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#$Tangram::TRACE = *STDOUT; |
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|
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# this holds the complete instantiated schema from tangram |
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my $schema_tangram; |
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|
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sub getMetaInfo { |
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my $self = shift; |
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$logger->debug( __PACKAGE__ . "->getMetaInfo()" ); |
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return { |
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'disconnectMethod' => 'disconnect', |
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}; |
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} |
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|
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sub _initSchema { |
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my $self = shift; |
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$logger->debug( __PACKAGE__ . "->_initSchema()" ); |
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#if (!$schema_tangram) { |
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#my $obj = getNewPerlObjectByPkgName($self->{locator}->{schema}, { EXPORT_OBJECTS => $self->{locator}->{classnames}, want_transactions => $self->{locator}->{want_transactions} } ); |
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my $obj = DesignPattern::Object->fromPackage($self->{locator}->{schema}, { 'EXPORT_OBJECTS' => $self->{locator}->{classnames}, 'want_transactions' => $self->{locator}->{want_transactions} } ); |
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$schema_tangram = $obj->getSchema() if $obj; |
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#} |
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if (!$schema_tangram) { |
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$logger->error( __PACKAGE__ . "->_initSchema: No Schema available for $self->{locator}->{schema}." ); |
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return 0; |
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} |
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#$self->_patchSchema(); |
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return 1; |
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} |
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|
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sub _patchSchema { |
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my $self = shift; |
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foreach (keys %{$schema_tangram->{classes}}) { |
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next if $schema_tangram->{classes}->{$_}->{abstract}; |
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#next if ($_ ne 'TsBankAccount'); |
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#$_ ne 'AbstractAccount' && |
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print "class: $_", "\n"; |
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#print Dumper($schema_tangram->{classes}->{$_}); |
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# create new string property named 'guid' |
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my $tstring = Tangram::String->new(); |
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$tstring->{name} = $tstring->{col} = 'guid'; |
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# inject property into schema |
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#$schema_tangram->{classes}->{$_}->{root}->{SPECS}->[0]->{fields}->{string}->{$tstring->{name}} = $tstring; |
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print Dumper($schema_tangram->{classes}->{$_}->{root}->{SPECS}->[0]->{fields}); |
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} |
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} |
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|
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sub connect { |
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|
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my $self = shift; |
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|
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my $dsn = shift; |
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|
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#print Dumper($self); |
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#exit; |
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|
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# TODO: re-enable |
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$dsn ||= $self->{locator}->{dbi}->{dsn}; |
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$logger->debug( __PACKAGE__ . "->connect( dsn $dsn )" ); |
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|
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#my $storage = Tangram::Relational->connect( $schema, $dsn ); |
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#my $storage = Tangram::mysql->connect( $schema, $dsn ); |
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#$storage = Tangram::Relational->connect( Project->schema, $dsn ); |
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|
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# if (!testDsn($dsn)) { |
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# croak("Database at \"$dsn\" is not available"); |
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# return; |
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# } |
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|
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return unless $self->_initSchema(); |
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#$self->_initSchema(); |
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|
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# create the main tangram storage object |
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#$self->{COREHANDLE} = Tangram::Relational->connect( $schema, $dsn ); |
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$self->{_COREHANDLE} = Tangram::Relational->connect( $schema_tangram, $dsn ); |
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|
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#print "connect", "\n"; |
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#my $core = $self->{_COREHANDLE}; |
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#print Dumper($core); |
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|
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# some attempts for configuring the wrapped underlying dbi..... |
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#$self->{STORAGEHANDLE_UNDERLYING} = $self->getUnderlyingStorage(); |
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#$self->{STORAGEHANDLE_UNDERLYING}->_configureCOREHANDLE(); |
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#$self->_configureUnderlyingStorage; |
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|
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# ..... encapsulation wins! |
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$self->configureCOREHANDLE(); |
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|
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$self->{locator}->{status}->{connected} = 1; |
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|
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return 1; |
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|
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} |
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|
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sub getChildNodes { |
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|
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my $self = shift; |
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my $mode = shift; |
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my $filter = shift; |
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|
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$mode ||= 'core'; |
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$filter ||= 'all'; |
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|
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$logger->debug( __PACKAGE__ . "->getChildNodes($mode)" ); |
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|
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if ($mode eq 'core') { |
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|
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my @nodes; |
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|
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# create new DBI - Data::Storage - object from already connected DBI::db - handle inside the current COREHANDLE |
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#my $loc = new Data::Storage::Locator( type => "DBI", dbi => { db => $self->{COREHANDLE}->{db} }); |
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#my $loc = new Data::Storage::Locator( type => "DBI", COREHANDLE => $self->{COREHANDLE}->{db} ); |
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|
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# todo: should we retrieve information from the schema here |
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# rather than poorly getting table names from underlying dbi? |
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my $storage = $self->_getSubLayerHandle(); |
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@nodes = @{$storage->getChildNodes()}; |
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#$storage->_configureCOREHANDLE(); |
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#print "getchildnodes\n"; |
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#print Dumper($self); |
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#if (my $result = $self->sendCommand( 'SHOW TABLES;' ) ) { |
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|
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# TODO: REVIEW |
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#$storage->disconnect(); |
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|
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$self->{meta}->{childnodes} = \@nodes; |
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|
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return \@nodes; |
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|
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} elsif ($mode eq 'root') { |
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|
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# FIXME: this will return *all* known classes to 'Class::Tangram', |
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# which might not be what you expect since more than one instance |
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# of Tangram may be in memory and Class::Tangram seems to |
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# offer no methods to determine this or filter its result(s) according |
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# to a specific database. |
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my @object_names = Class::Tangram::known_classes(); |
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my @concret_names; |
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my $o_cnt; |
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foreach (sort @object_names) { |
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push @concret_names, $_ if (!Class::Tangram::class_is_abstract($_)); |
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$o_cnt++; |
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} |
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|
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if ($filter eq 'all') { |
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return \@object_names; |
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} elsif ($filter eq 'concrete') { |
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return \@concret_names; |
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} |
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|
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} |
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|
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|
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} |
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|
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sub testIntegrity { |
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|
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my $self = shift; |
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|
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$logger->debug( __PACKAGE__ . "->testIntegrity()" ); |
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|
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# 1st test: are there tables? |
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if (!$self->getChildNodes()) { |
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$logger->warning( __PACKAGE__ . "->testIntegrity no childnodes exist" ); |
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return; |
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} |
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|
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# 2nd test: is there a table named "Tangram"? |
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if (!$self->existsChildNode("Tangram")) { |
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$logger->warning( __PACKAGE__ . "->testIntegrity childnode \"Tangram\" doesn't exist" ); |
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return; |
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} |
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|
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$self->{locator}->{status}->{integrity} = 1; |
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return 1; |
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|
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} |
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|
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|
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sub _getSubLayerHandle { |
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|
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my $self = shift; |
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|
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$logger->debug( __PACKAGE__ . "->_getSubLayerHandle()" ); |
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|
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#print Dumper($self); |
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|
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# hack, make more generic! |
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if (!$self->{dataStorageLayer}) { |
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$logger->debug( __PACKAGE__ . "->_getSubLayerHandle() creating new dataStorageLayer" ); |
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#my $loc = Data::Storage::Locator->new( type => "DBI", dbi => $self->{dbi}, COREHANDLE => $self->{COREHANDLE}->{db} ); |
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my $loc = Data::Storage::Locator->new( { type => "DBI", dbi => $self->{locator}->{dbi} } ); |
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$self->{dataStorageLayer} = Data::Storage->new( $loc, { protected => 1 } ); |
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#$self->{STORAGE_UNDER_THE_HOOD}->{STORAGEHANDLE}->_configureCOREHANDLE(); |
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#$self->{STORAGE_UNDER_THE_HOOD}->_configureCOREHANDLE(); |
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} |
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|
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#print Dumper($self->{STORAGE_UNDER_THE_HOOD}); |
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|
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return $self->{dataStorageLayer}; |
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|
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} |
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|
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sub _configureUnderlyingStorage { |
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|
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my $self = shift; |
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|
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$logger->debug( __PACKAGE__ . "->_configureUnderlyingStorage" ); |
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|
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$self->_configureCOREHANDLE_DBI(); |
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return; |
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|
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foreach my $key (keys %{$self->{dbi}}) { |
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my $val = $self->{dbi}->{$key}; |
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print "entry: $key; $val", "\n"; |
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$self->{_COREHANDLE}->{db}->{$key} = $val; |
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} |
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#print Dumper($self->{COREHANDLE}->{db}); |
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} |
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|
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|
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sub configureCOREHANDLE { |
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|
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my $self = shift; |
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|
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$logger->debug( __PACKAGE__ . "->configureCOREHANDLE" ); |
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|
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#my $subLayer = $self->_getSubLayerHandle(); |
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#print Dumper($self); |
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#exit; |
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|
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# apply configured modifications |
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if (exists $self->{dbi}->{trace_level} && exists $self->{dbi}->{trace_file}) { |
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$self->{_COREHANDLE}->{db}->trace($self->{dbi}->{trace_level}, $self->{dbi}->{trace_file}); |
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} |
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if (exists $self->{dbi}->{RaiseError}) { |
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$self->{_COREHANDLE}->{db}->{RaiseError} = $self->{dbi}->{RaiseError}; |
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} |
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if (exists $self->{dbi}->{PrintError}) { |
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$self->{_COREHANDLE}->{db}->{PrintError} = $self->{dbi}->{PrintError}; |
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} |
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if (exists $self->{dbi}->{HandleError}) { |
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$self->{_COREHANDLE}->{db}->{HandleError} = $self->{dbi}->{HandleError}; |
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} |
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|
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} |
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|
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sub deploySchema { |
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my $self = shift; |
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my $args = shift; |
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|
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my $dsn = $self->{locator}->{dbi}->{dsn}; |
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|
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$logger->debug( __PACKAGE__ . "->deploySchema( dsn $dsn )" ); |
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|
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my $ok; |
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if ( my $dbh = DBI->connect($dsn, '', '', $self->{locator}->{dbi} ) ) { |
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return unless $self->_initSchema(); |
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$ok = Tangram::Relational->deploy($schema_tangram, $dbh ); |
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$dbh->disconnect(); |
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} |
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return $ok; |
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} |
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|
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sub retreatSchema { |
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|
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my $self = shift; |
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my $dsn = $self->{locator}->{dbi}->{dsn}; |
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|
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$logger->debug( __PACKAGE__ . "->retreatSchema( dsn $dsn )" ); |
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|
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my $ok; |
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if ( my $dbh = DBI->connect($dsn, '', '', $self->{locator}->{dbi} ) ) { |
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|
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return unless $self->_initSchema(); |
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|
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#use Data::Dumper; print Dumper($self); |
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$self->{dataStorageLayer}->removeLogDispatchHandler("Tangram11"); |
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|
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$ok = Tangram::Relational->retreat($schema_tangram, $dbh ); |
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|
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# answer "$ok=2" means "maybe" for now - we have to patch this to a constant here because... |
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# - ... Tangram::Relational->retreat doesn't seem to return a valid status |
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# - possible improvement: |
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# - test this by checking for count of tables in database |
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# - problem with this: there may be some left not having been included to the schema |
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# - maybe better: use "->getChildNodes"? |
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$ok = 2; |
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|
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$dbh->disconnect(); |
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|
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} |
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return $ok; |
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} |
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|
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sub rebuildDb { |
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my $self = shift; |
495 |
$logger->info( __PACKAGE__ . "->rebuildDb()" ); |
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my @results; |
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|
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# sum up results (bool (0/1)) in array |
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push @results, $self->retreatSchema(); |
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push @results, $self->{dataStorageLayer}->dropDb(); |
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push @results, $self->{dataStorageLayer}->createDb(); |
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push @results, $self->deploySchema(); |
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|
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# scan array for "bad ones" |
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my $res = 1; |
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map { |
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$res = 0 if (!$_); |
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} @results; |
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|
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return $res; |
511 |
} |
512 |
|
513 |
sub getListUnfiltered { |
514 |
my $self = shift; |
515 |
my $nodename = shift; |
516 |
my @results; |
517 |
$logger->debug( __PACKAGE__ . "->getListUnfiltered( nodename => '" . $nodename . "' )" ); |
518 |
# get set of objects from odbms by object name |
519 |
my $object_set = $self->{_COREHANDLE}->remote($nodename); |
520 |
@results = $self->{_COREHANDLE}->select($object_set); |
521 |
return \@results; |
522 |
} |
523 |
|
524 |
sub getListFiltered { |
525 |
my $self = shift; |
526 |
|
527 |
# redirect to unfiltered mode |
528 |
#return $self->getListUnfiltered(@_); |
529 |
|
530 |
my $in = {}; |
531 |
$in->{nodename} = shift; |
532 |
$in->{filters} = shift; |
533 |
$in->{sorting} = shift; |
534 |
|
535 |
my @results; |
536 |
$logger->debug( __PACKAGE__ . "->getListFiltered( nodename => '" . $in->{nodename} . "' )" ); |
537 |
|
538 |
#print "Filter_payload: " . Dumper($in->{filters}) . "\n"; |
539 |
|
540 |
# 1. "Remote Object Handle" - get set of objects from odbms by object name |
541 |
my $remote = $self->{_COREHANDLE}->remote($in->{nodename}); |
542 |
|
543 |
# 2. Transfer $in to $orm_query |
544 |
my $orm_query = {}; |
545 |
|
546 |
# 2.a. Filters |
547 |
my @tfilters; |
548 |
my $orm_filter = undef; |
549 |
|
550 |
foreach my $filter (@{$in->{filters}}) { |
551 |
|
552 |
# get filter - TODO: for each filter |
553 |
#my $filter = $filters->[0]; |
554 |
|
555 |
# 1. The parts of a filter source entry |
556 |
my $lexpr = $filter->{key}; |
557 |
#my $op = $filter->{op}; |
558 |
my $op = '='; |
559 |
my $rexpr = $filter->{val}; |
560 |
my $tight = 100; |
561 |
|
562 |
# 2. Build filter target entry |
563 |
|
564 |
# Test 1 - didn't work out! |
565 |
# my $tfilter = Tangram::Filter->new( |
566 |
# expr => "t1.$lexpr $op '$rexpr'", |
567 |
# tight => $tight, |
568 |
# objects => $objects, |
569 |
# ); |
570 |
|
571 |
my $orm_filter_tmp = undef; |
572 |
# was: |
573 |
# TODO: is_op? |
574 |
# dispatch un-common operators if exists |
575 |
if ($filter->{op} eq "ref") { |
576 |
# do nothing, results will be filtered later cause 'tangram-filter' doesn't support 'ref' query |
577 |
#print "Filter->op eq 'ref'.\n"; |
578 |
#push @tfilters, 'ref($remote->{' . $filter->{key} . '})' . " eq '$filter->{val}'"; |
579 |
} else { |
580 |
# HACK: build eval-string (sorry) to get filtered list - please give advice here |
581 |
#push @tfilters, '$remote->{' . $filter->{key} . '}' . " $filter->{op} '$filter->{val}'"; |
582 |
# better: calculate expression right here! |
583 |
#push @tfilters, '$remote->{' . $filter->{key} . '}' . " $filter->{op} '$filter->{val}'"; |
584 |
|
585 |
#print "key: ", $filter->{key}, "\n"; |
586 |
|
587 |
my $left = $remote->{$filter->{key}}; |
588 |
#my $r = Tangram::Expr->new( 'string' => "'" . $filter->{val} . "'" ); |
589 |
my $right = $filter->{val}; |
590 |
my $op = $filter->{op}; |
591 |
$orm_filter_tmp = $left->$op($right); |
592 |
} |
593 |
|
594 |
if (!ref($orm_filter)) { |
595 |
$orm_filter = $orm_filter_tmp; |
596 |
} else { |
597 |
$orm_filter = $orm_filter->and($orm_filter_tmp); |
598 |
} |
599 |
|
600 |
} |
601 |
|
602 |
$orm_query->{filter} = $orm_filter; |
603 |
|
604 |
# debug point: |
605 |
#print "Filter: " . Dumper($orm_query->{filter}) . "\n"; |
606 |
|
607 |
# was: |
608 |
|
609 |
# 2.b. sorting [new as of 2003-06-17] |
610 |
if ($in->{sorting}) { |
611 |
my $sorting_rules = []; |
612 |
my $sorting_order = 'ASC'; |
613 |
foreach my $sorting_column (keys %{$in->{sorting}}) { |
614 |
$sorting_order = $in->{sorting}->{$sorting_column} if $in->{sorting}->{$sorting_column}; |
615 |
push @$sorting_rules, Tangram::Expr->new( 'string' => $sorting_column ); |
616 |
} |
617 |
$orm_query->{order} = $sorting_rules; |
618 |
if ($sorting_order eq 'DESC') { |
619 |
$orm_query->{desc} = 1; |
620 |
} |
621 |
} |
622 |
|
623 |
|
624 |
# 3. build and issue query - return result as Tangram::Cursor |
625 |
|
626 |
# coerce hash into array (This is valid in Perl) |
627 |
my @orm_query_args = %$orm_query; |
628 |
# send query (arguments) to orm |
629 |
@results = $self->{_COREHANDLE}->select($remote, @orm_query_args); |
630 |
|
631 |
#my $cursor = $self->{_COREHANDLE}->cursor($remote, @orm_query_args); |
632 |
#return $cursor; |
633 |
#print Dumper(@results); |
634 |
|
635 |
# is: |
636 |
# HACK: build eval-string (sorry) to get filtered list - please give advice here |
637 |
#my $evalstring = 'return $self->{_COREHANDLE}->select($remote, ' . $tfilter . $sorting . ');'; |
638 |
#print "eval: $evalstring", "\n"; |
639 |
# get filtered list/set |
640 |
#@results = eval($evalstring); |
641 |
#die $@ if $@; |
642 |
|
643 |
# filter results - NEEDED for e.g. UserManagment !! |
644 |
if ($in->{filters}->[0]->{op} && ($in->{filters}->[0]->{op} eq "ref")) { |
645 |
#print "Filter->op eq 'ref'.\n"; |
646 |
my $att_name = $in->{filters}->[0]->{key}; |
647 |
my $att_val = $in->{filters}->[0]->{val}; |
648 |
my @filtered; |
649 |
foreach(@results) { |
650 |
if(ref($_->{$att_name}) eq $att_val) { |
651 |
push @filtered, $_; |
652 |
} |
653 |
} |
654 |
@results = @filtered; |
655 |
} |
656 |
|
657 |
#print "results: " . Dumper(\@results); |
658 |
|
659 |
return \@results; |
660 |
} |
661 |
|
662 |
sub createCursor { |
663 |
my $self = shift; |
664 |
my $node = shift; |
665 |
my $cmdHandle = $self->{_COREHANDLE}->cursor($node); |
666 |
my $result = Data::Storage::Result::Tangram->new( RESULTHANDLE => $cmdHandle ); |
667 |
return $result; |
668 |
} |
669 |
|
670 |
sub createSet { |
671 |
my $self = shift; |
672 |
#print "-" x 80, "\n"; |
673 |
#print Dumper(@_); |
674 |
my @objects = @_; |
675 |
my $rh = Set::Object->new(); |
676 |
foreach (@objects) { |
677 |
if (!isEmpty($_)) { |
678 |
#print Dumper($_); |
679 |
$rh->insert($_); |
680 |
} |
681 |
} |
682 |
#print Dumper($rh->members()); |
683 |
my $result = Data::Storage::Result::Tangram->new( RESULTHANDLE => $rh ); |
684 |
return $result; |
685 |
} |
686 |
|
687 |
sub createResult { |
688 |
my $self = shift; |
689 |
my $rh = shift; |
690 |
my $result = Data::Storage::Result::Tangram->new( RESULTHANDLE => $rh ); |
691 |
return $result; |
692 |
} |
693 |
|
694 |
sub sendQuery { |
695 |
my $self = shift; |
696 |
my $query = shift; |
697 |
|
698 |
#print Dumper($query); |
699 |
|
700 |
# type = ITEM|LIST|TRANSPARENT |
701 |
my $type = ''; |
702 |
# mode = OID|SPECIAL |
703 |
my $mode = ''; |
704 |
my $ident = ''; |
705 |
my $crud = ''; |
706 |
|
707 |
|
708 |
# dispatch type and mode |
709 |
|
710 |
# defaults - 1 |
711 |
if ($query->{options}) { |
712 |
$crud = $query->{options}->{crud}; |
713 |
$crud ||= $query->{options}->{action}; |
714 |
} |
715 |
|
716 |
# defaults - 2 |
717 |
$type ||= 'TRANSPARENT'; |
718 |
$crud ||= 'RETRIEVE'; |
719 |
|
720 |
if ($query->{options}->{OID}) { |
721 |
$type = 'ITEM'; |
722 |
$mode = 'OID'; |
723 |
$ident = $query->{options}->{OID}; |
724 |
|
725 |
} elsif (my $guid = $query->{options}->{GUID}) { |
726 |
$type = 'TRANSPARENT'; |
727 |
if(ref($query->{criterias}) eq 'ARRAY') { |
728 |
push @{$query->{criterias}}, { key => 'guid', op => 'eq', val => $guid }; |
729 |
} else { |
730 |
$query->{criterias} = [ { key => 'guid', op => 'eq', val => $guid } ]; |
731 |
} |
732 |
} |
733 |
# if operator is different (dispatcher for 'getListFiltered') |
734 |
if (my $op = $query->{options}->{op}) { |
735 |
$type = 'TRANSPARENT'; |
736 |
if(ref($query->{criterias}) eq 'ARRAY') { |
737 |
push @{$query->{criterias}}, { key => $query->{options}->{meta_label}, op => $op, val => $query->{options}->{meta_value} }; |
738 |
} else { |
739 |
$query->{criterias} = [ { key => $query->{options}->{meta_label}, op => $op, val => $query->{options}->{meta_value} } ]; |
740 |
} |
741 |
} |
742 |
|
743 |
# HACK: special case: querying by id does not translate into a common tangram query |
744 |
# just load the object by given identifier (OID) named 'id' - this is required by Data::Transfer::Sync! |
745 |
if ($query->{criterias} && ($query->{criterias}->[0]->{key} eq 'id' && $query->{criterias}->[0]->{op} eq 'eq')) { |
746 |
$type = 'ITEM'; |
747 |
$mode = 'SPECIAL.SYNC'; |
748 |
$ident = $query->{criterias}->[0]->{val}; |
749 |
} |
750 |
|
751 |
|
752 |
# execute query |
753 |
my $result; |
754 |
|
755 |
if ($type eq 'ITEM' && $ident) { |
756 |
|
757 |
if ($mode eq 'OID') { |
758 |
# TODO: review this case! |
759 |
$result = $self->getObject($ident, $query->{options}); |
760 |
|
761 |
} elsif ($mode eq 'SPECIAL.SYNC') { |
762 |
|
763 |
# V1 - failed |
764 |
#return Set::Object->new( $self->{COREHANDLE}->load($query->{criterias}->[0]->{val}) ); |
765 |
|
766 |
# hmm.... |
767 |
#return $self->createSet() if $ident == 5; |
768 |
|
769 |
# Unload single object before doing any further operations to |
770 |
# expect a "fresh" object from orm when performing the next calls. |
771 |
$self->{_COREHANDLE}->unload($ident); |
772 |
|
773 |
# Load object from orm. |
774 |
my $object = $self->{_COREHANDLE}->load($ident); |
775 |
|
776 |
# determine object identifier (OID) |
777 |
my $oid = $self->{_COREHANDLE}->id($object); |
778 |
|
779 |
# encapsulate into result/response container and return this one |
780 |
$result = $self->createSet($object); |
781 |
|
782 |
# debugging |
783 |
#$result = $self->createSet( $self->{COREHANDLE}->load('300090018') ); |
784 |
|
785 |
} |
786 |
|
787 |
|
788 |
} elsif ($type eq 'TRANSPARENT') { |
789 |
|
790 |
if ($crud eq 'RETRIEVE') { |
791 |
|
792 |
my $list = $self->getListFiltered($query->{node}, $query->{criterias}, $query->{sorting}); |
793 |
#return $list; |
794 |
return $self->createResult($list); |
795 |
|
796 |
#return $self->createSet($object); |
797 |
#return $self->createSet($list); |
798 |
return $self->createSet(@$list); |
799 |
|
800 |
#die("This should not be reached for now - redirect to \$self->getListFiltered() here!"); |
801 |
|
802 |
# try a generic tangram query here |
803 |
# TODO: try to place an oql on top of that (search.cpan.org!) |
804 |
my @crits; |
805 |
foreach (@{$query->{criterias}}) { |
806 |
my $op = ''; |
807 |
$op = '=' if lc $_->{op} eq 'eq'; |
808 |
push @crits, "$_->{key}$op'$_->{val}'"; |
809 |
} |
810 |
my $subnodes = {}; |
811 |
map { $subnodes->{$_}++ } @{$query->{subnodes}}; |
812 |
# HACK: this is hardcoded ;( expand possibilities! |
813 |
#my $crit = join(' AND ', @crits); |
814 |
#my $sql = hash2Sql($query->{node}, $subnodes, 'SELECT', $crit); |
815 |
#return $self->sendCommand($sql); |
816 |
#my $h = $self->{COREHANDLE}->remote($query->{node}); |
817 |
#my $res = $self->{COREHANDLE}->select($h, $h->{); |
818 |
$result = $self->createCursor($query->{node}); |
819 |
|
820 |
} elsif ($crud eq 'UPDATE') { |
821 |
|
822 |
# Patch current query to be a loader (e.g. change action, remove payload) ... |
823 |
my $childquery = deep_copy($query); |
824 |
$childquery->{options}->{crud} = 'RETRIEVE'; |
825 |
delete $childquery->{payload}; |
826 |
|
827 |
# ... to use it to fetch a fresh object using ourselves (sendQuery). |
828 |
my $cursor = $self->sendQuery($childquery); |
829 |
my $status = $cursor->getStatus(); |
830 |
my $object = $cursor->getNextEntry(); |
831 |
|
832 |
# Merge values and apply value modifiers. |
833 |
my $options = { utf8 => 1, php => 1 }; |
834 |
merge_to($object, $query->{payload}, $options); |
835 |
|
836 |
#print Dumper($object); |
837 |
|
838 |
# Execute update operation at orm. |
839 |
$self->update($object); |
840 |
$result = $self->createResult([ $object ]); |
841 |
|
842 |
} elsif ($crud eq 'DELETE') { |
843 |
|
844 |
# Patch current query to be a loader (e.g. change action) ... |
845 |
my $childquery = deep_copy($query); |
846 |
$childquery->{options}->{crud} = 'RETRIEVE'; |
847 |
|
848 |
# ... to use it to fetch a fresh object using ourselves (sendQuery). |
849 |
my $cursor = $self->sendQuery($childquery); |
850 |
my $status = $cursor->getStatus(); |
851 |
my $object = $cursor->getNextEntry(); |
852 |
|
853 |
$self->erase($object); |
854 |
$self->unload($object); |
855 |
|
856 |
} elsif ($crud eq 'CREATE') { |
857 |
|
858 |
my $nodename = $query->{node}; |
859 |
my $newnode = $self->createNode($nodename); |
860 |
my $id = $self->{_COREHANDLE}->insert($newnode); |
861 |
|
862 |
print "Saved new node $nodename with GUID $newnode->{guid}, OID '$id': " . Dumper($newnode) . "\n"; |
863 |
|
864 |
return $newnode; |
865 |
|
866 |
} |
867 |
|
868 |
} |
869 |
|
870 |
return $result; |
871 |
|
872 |
} |
873 |
|
874 |
sub eraseAll { |
875 |
my $self = shift; |
876 |
my $classname = shift; |
877 |
my $remote = $self->{_COREHANDLE}->remote($classname); |
878 |
my @objs = $self->{_COREHANDLE}->select($remote); |
879 |
$self->{_COREHANDLE}->erase(@objs); |
880 |
} |
881 |
|
882 |
sub createDb { |
883 |
my $self = shift; |
884 |
my $storage = $self->_getSubLayerHandle(); |
885 |
return $storage->createDb(); |
886 |
} |
887 |
|
888 |
sub getObject { |
889 |
my $self = shift; |
890 |
my $oid = shift; |
891 |
my $options = shift; |
892 |
|
893 |
# TODO: create a deep_unload method (currently _all_ objects are unloaded) |
894 |
# unload($oid) will only unload object, not deep object hashes |
895 |
$self->{_COREHANDLE}->unload() if ($options->{destroy}); |
896 |
|
897 |
# TODO: review this |
898 |
#if (!$self->{COREHANDLE}) { return; } |
899 |
|
900 |
# TODO: review this |
901 |
my $object = eval('$self->{_COREHANDLE}->load($oid);'); |
902 |
print $@, "\n" if $@; |
903 |
|
904 |
return $object if $object; |
905 |
} |
906 |
|
907 |
sub getObjectByGuid_old { |
908 |
my $self = shift; |
909 |
my $guid = shift; |
910 |
my $options = shift; |
911 |
|
912 |
# Guid and Classname is needed |
913 |
if(!$guid || !$options->{classname}) { |
914 |
$logger->error( __PACKAGE__ . "->getObjectByGuid: No 'guid' OR no Classname in options hash was given but needed!" ); |
915 |
return; |
916 |
} |
917 |
|
918 |
# TODO: create a deep_unload method (currently _all_ objects are unloaded) |
919 |
# unload($oid) will only unload object, not deep object hashes |
920 |
$self->{_COREHANDLE}->unload() if ($options->{destroy}); |
921 |
|
922 |
# search for object with given Classname and Guid |
923 |
my $obj_tmp = $self->{_COREHANDLE}->remote($options->{classname}); |
924 |
my @result = $self->{_COREHANDLE}->select($obj_tmp, $obj_tmp->{guid} eq $guid); |
925 |
|
926 |
# we searched for global unique identifer of some object, |
927 |
# so I think we can trust there would be only one result |
928 |
if($result[0]) { |
929 |
return $result[0]; |
930 |
} else { |
931 |
$logger->error( __PACKAGE__ . "->getObjectByGuid: No Object with Classname $options->{classname} and GUID $guid found!" ); |
932 |
return; |
933 |
} |
934 |
|
935 |
} |
936 |
|
937 |
sub getObjectAsHash_old { |
938 |
my $self = shift; |
939 |
my $oid = shift; |
940 |
my $options = shift; |
941 |
my $obj; |
942 |
|
943 |
if($options->{guid}) { |
944 |
$obj = $self->getObjectByGuid($oid, $options); |
945 |
} else { |
946 |
$obj = $self->getObject($oid, $options); |
947 |
} |
948 |
|
949 |
# build options (a callback to unload autovivified objects) for 'expand' |
950 |
# TODO: use $logger to write to debug here! |
951 |
my $cb; # = sub {}; |
952 |
|
953 |
# deactivated way to get rid of used instances, if requested |
954 |
=pod |
955 |
if ($options->{destroy}) { |
956 |
$options->{cb}->{destroy} = sub { |
957 |
print "================ DESTROY", "\n"; |
958 |
my $object = shift; |
959 |
#print Dumper($object); |
960 |
$self->{_COREHANDLE}->unload($object); |
961 |
#undef($object); |
962 |
}; |
963 |
} |
964 |
=cut |
965 |
|
966 |
my $hash = expand($obj, $options); |
967 |
|
968 |
# old (unsuccessful) attempts to get rid of used instances, if requested |
969 |
|
970 |
# V1: |
971 |
#$options->{cb}->{destroy}->($obj); |
972 |
#$self->{_COREHANDLE}->unload($obj); |
973 |
|
974 |
# V2: |
975 |
#$obj->clear_refs; |
976 |
#$self->{COREHANDLE}->unload($obj) if($options->{destroy}); |
977 |
#$obj->DESTROY; |
978 |
#undef($obj) if($options->{destroy}); |
979 |
|
980 |
return $hash; |
981 |
} |
982 |
|
983 |
sub getSchema { |
984 |
return $schema_tangram; |
985 |
} |
986 |
|
987 |
sub getCOREHANDLE { |
988 |
my $self = shift; |
989 |
return $self->{_COREHANDLE}; |
990 |
} |
991 |
|
992 |
sub dropDb { |
993 |
my $self = shift; |
994 |
my $storage = $self->_getSubLayerHandle(); |
995 |
return $storage->dropDb(); |
996 |
} |
997 |
|
998 |
sub testAvailability { |
999 |
my $self = shift; |
1000 |
my $storage = $self->_getSubLayerHandle(); |
1001 |
return $storage->testAvailability(); |
1002 |
} |
1003 |
|
1004 |
sub disconnect2 { |
1005 |
my $self = shift; |
1006 |
my $storage = $self->_getSubLayerHandle(); |
1007 |
print "DISC!", "\n"; |
1008 |
|
1009 |
my $storage_ll = $storage->{_COREHANDLE}; |
1010 |
$storage_ll->disconnect(); |
1011 |
|
1012 |
print Dumper($storage); |
1013 |
exit; |
1014 |
|
1015 |
#$self->{_COREHANDLE} |
1016 |
#$storage->disconnect(); |
1017 |
$self->{dataStorageLayer}->disconnect(); |
1018 |
} |
1019 |
|
1020 |
|
1021 |
sub createNode { |
1022 |
my $self = shift; |
1023 |
my $classname = shift; |
1024 |
|
1025 |
my $obj = $classname->new(); |
1026 |
|
1027 |
my $attr_options = Class::Tangram::attribute_options($classname); |
1028 |
#print "Attribute Options: " . Dumper($attr_options); |
1029 |
|
1030 |
my $attr_types = Class::Tangram::attribute_types($classname); |
1031 |
#print "Attribute Types: " . Dumper($attr_types); |
1032 |
|
1033 |
foreach(keys %{$attr_types}) { |
1034 |
if($attr_types->{$_} eq 'string') { |
1035 |
$obj->{$_} = ''; |
1036 |
} elsif($attr_types->{$_} eq 'int') { |
1037 |
$obj->{$_} = 0; |
1038 |
} elsif($attr_types->{$_} eq 'real') { |
1039 |
$obj->{$_} = 0; |
1040 |
} elsif($attr_types->{$_} eq 'rawdatetime') { |
1041 |
$obj->{$_} = '0000-00-00 00:00:00'; |
1042 |
} elsif($attr_types->{$_} eq 'ref') { |
1043 |
if($attr_options->{$_}->{class}) { |
1044 |
# HACK!!! |
1045 |
# STANDALONE Objects (objects which make sense to instanciat alone) should not created automaticly |
1046 |
# because they maybe exists and should only be SETTED not CREATED! |
1047 |
# TODO: Create a flag at the scheme for that reason! |
1048 |
# (e.g child_node => 1 for child-nodes only like e.g. UserData) |
1049 |
if($attr_options->{$_}->{class} eq 'NetPerson' || $attr_options->{$_}->{class} eq 'Event' || $attr_options->{$_}->{class} eq 'BetRule') { |
1050 |
#$obj->{$_} = undef(); |
1051 |
} else { |
1052 |
$obj->{$_} = $self->createNode($attr_options->{$_}->{class}); |
1053 |
} |
1054 |
} else { |
1055 |
#$obj->{$_} = undef(); |
1056 |
} |
1057 |
} elsif($attr_types->{$_} eq 'iarray') { |
1058 |
$obj->{$_} = [ ]; |
1059 |
} elsif($attr_types->{$_} eq 'hash') { |
1060 |
$obj->{$_} = { }; |
1061 |
} elsif($attr_types->{$_} eq 'flat_hash') { |
1062 |
$obj->{$_} = { }; |
1063 |
} |
1064 |
} |
1065 |
|
1066 |
#print "New Object: " . Dumper($obj); |
1067 |
|
1068 |
return $obj; |
1069 |
} |
1070 |
|
1071 |
|
1072 |
sub insertChildNode { |
1073 |
my $self = shift; |
1074 |
my $child_entry = shift; |
1075 |
my $query_args = shift; |
1076 |
|
1077 |
my $core = $self->{_COREHANDLE}; |
1078 |
my $nodename = $query_args->{nodename}; |
1079 |
|
1080 |
# get parent object |
1081 |
my $query = { |
1082 |
node => $query_args->{parent}->{nodename}, |
1083 |
options => { GUID => $query_args->{parent}->{guid}, }, |
1084 |
}; |
1085 |
my $cursor = $self->sendQuery($query); |
1086 |
my $parent = $cursor->getNextEntry(); |
1087 |
|
1088 |
# debug |
1089 |
#print "Parent_org: " . Dumper($parent); |
1090 |
|
1091 |
# Create child node object if isn't already done |
1092 |
# ($child_entry have to be the class name then...) |
1093 |
if(!ref($child_entry)) { |
1094 |
$child_entry = $self->createNode($child_entry); |
1095 |
# it could be insert 'manually' or will be insert 'transparent' if parent will be updated |
1096 |
#$core->insert($child_entry); |
1097 |
#print "Create child object [$nodename]: " . Dumper($child_entry); |
1098 |
} |
1099 |
|
1100 |
# get reference of tied node (seems, only on Linux node's are tied!!) |
1101 |
my $tied_node = tied $parent->{$nodename}; |
1102 |
|
1103 |
# insert/change child entry at parent |
1104 |
#print "reference: " . ref($parent->{$nodename}) . "\n"; |
1105 |
if(ref($parent->{$nodename}) eq 'ARRAY') { |
1106 |
# (seems, only on Linux node's are tied!!) |
1107 |
if($tied_node) { |
1108 |
# all tangram types are tied as 'SCALAR' with special 'FETCH', 'STORE' methods per type, |
1109 |
# so a 'PUSH' is not implemented (which could be then done transparently) |
1110 |
my $array = $tied_node->FETCH; |
1111 |
push @$array, $child_entry; |
1112 |
$tied_node->STORE($array); |
1113 |
# node will be normaly untied at 'STORE' |
1114 |
if(tied $parent->{$nodename}) { print "already tied !!\n"; } |
1115 |
else { undef $tied_node; } |
1116 |
} else { |
1117 |
push @{$parent->{$nodename}}, $child_entry; |
1118 |
} |
1119 |
} |
1120 |
elsif(ref($parent->{$nodename}) eq 'HASH') { |
1121 |
if(my $key = $query_args->{hash_key}) { |
1122 |
# (seems, only on Linux node's are tied!!) |
1123 |
if($tied_node) { |
1124 |
# same problem as with 'ARRAY': |
1125 |
# all tangram types are tied as 'SCALAR' with special 'FETCH', 'STORE' methods per type. |
1126 |
my $hash = $tied_node->FETCH; |
1127 |
$hash->{$key} = $child_entry; |
1128 |
$tied_node->STORE($hash); |
1129 |
# node will be normaly untied at 'STORE' |
1130 |
if(tied $parent->{$nodename}) { print "already tied !!\n"; } |
1131 |
else { undef $tied_node; } |
1132 |
} else { |
1133 |
$parent->{$nodename}->{$key} = $child_entry; |
1134 |
} |
1135 |
} else { |
1136 |
print "ERROR: No HASH KEY given, so not able to insert hash entry!"; |
1137 |
} |
1138 |
} |
1139 |
else { |
1140 |
$parent->{$nodename} = $child_entry; |
1141 |
} |
1142 |
|
1143 |
# debug |
1144 |
#print "Parent_new: " . Dumper($parent); |
1145 |
|
1146 |
# save parent |
1147 |
$core->update($parent); |
1148 |
|
1149 |
# debug |
1150 |
#print "Saved Parent: ". Dumper($parent); |
1151 |
|
1152 |
return $child_entry; |
1153 |
} |
1154 |
|
1155 |
|
1156 |
1; |
1157 |
__END__ |