Enabled metadata extraction in WCM.

A set of extracters for different mimetypes can be activated across AVM land. The XML extraction sample has been modified to be AVM-specific, and therefore includes the necessary config to activate the metadata extraction in AVM. git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@6238 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2025-07-24 17:32:48 +00:00 · 2007-07-13 00:33:55 +00:00
parent 82841201e2
commit 44f6b94cff
2 changed files with 159 additions and 7 deletions
--- a/source/java/org/alfresco/repo/avm/AvmMetadataExtracter.java
+++ b/source/java/org/alfresco/repo/avm/AvmMetadataExtracter.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+package org.alfresco.repo.avm;
+
+import org.alfresco.repo.action.executer.ContentMetadataExtracter;
+import org.alfresco.repo.content.ContentServicePolicies;
+import org.alfresco.repo.policy.JavaBehaviour;
+import org.alfresco.repo.policy.PolicyComponent;
+import org.alfresco.service.cmr.repository.NodeRef;
+import org.alfresco.service.cmr.repository.StoreRef;
+import org.alfresco.service.namespace.NamespaceService;
+import org.alfresco.service.namespace.QName;
+
+/**
+ * A component that listens for changes to the content 
+ * 
+ * @since 2.1
+ * @author Derek Hulley
+ */
+public class AvmMetadataExtracter
+        implements ContentServicePolicies.OnContentUpdatePolicy
+{
+    /** the component to register the behaviour with */
+    private PolicyComponent policyComponent;
+    /** the action that will do the work */
+    private ContentMetadataExtracter extracterAction;
+    
+    /**
+     * @param policyComponent used for registrations
+     */
+    public void setPolicyComponent(PolicyComponent policyComponent)
+    {
+        this.policyComponent = policyComponent;
+    }
+
+    /**
+     * @param extracterAction       the action that will perform the actual extraction
+     */
+    public void setExtracterAction(ContentMetadataExtracter extracterAction)
+    {
+        this.extracterAction = extracterAction;
+    }
+
+    /**
+     * Registers the policy behaviour methods
+     */
+    public void init()
+    {
+        policyComponent.bindClassBehaviour(
+                QName.createQName(NamespaceService.ALFRESCO_URI, "onContentUpdate"),
+                this,
+                new JavaBehaviour(this, "onContentUpdate"));   
+    }
+
+    /**
+     * When the content changes, the metadata is extracted.
+     */
+    public void onContentUpdate(NodeRef nodeRef, boolean newContent)
+    {
+        /*
+         * The use of the action here is a supreme hack.  The code within the action is
+         * what we are after and it would be a shame to duplicate it.  Also, it is the
+         * intention that rules will eventually work against AVM, making this class
+         * obsolete.
+         */
+        
+        // Ignore everything non-AVM
+        if (!nodeRef.getStoreRef().getProtocol().equals(StoreRef.PROTOCOL_AVM))
+        {
+            return;
+        }
+        
+        // We extract the content whether it is new or not
+        extracterAction.executeImpl(null, nodeRef);
+    }
+}