[tinyTiM-commits] SF.net SVN: tinytim:[285] tinytim/trunk/src/main/java/org/tinytim/utils/ XTM10Utils.java

[<lh...@us...>]

Revision: 285
          http://tinytim.svn.sourceforge.net/tinytim/?rev=285&view=rev
Author:   lheuer
Date:     2009-03-10 14:28:29 +0000 (Tue, 10 Mar 2009)

Log Message:
-----------
Added XTM10Utils to convert XTM 1.0 reification to TMDM reification

Added Paths:
-----------
    tinytim/trunk/src/main/java/org/tinytim/utils/XTM10Utils.java

Added: tinytim/trunk/src/main/java/org/tinytim/utils/XTM10Utils.java
===================================================================
--- tinytim/trunk/src/main/java/org/tinytim/utils/XTM10Utils.java	                        (rev 0)
+++ tinytim/trunk/src/main/java/org/tinytim/utils/XTM10Utils.java	2009-03-10 14:28:29 UTC (rev 285)
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2008 - 2009 Lars Heuer (heuer[at]semagia.com). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.tinytim.utils;
+
+import java.util.logging.Logger;
+
+import org.tmapi.core.Construct;
+import org.tmapi.core.Locator;
+import org.tmapi.core.Reifiable;
+import org.tmapi.core.Topic;
+import org.tmapi.core.TopicMap;
+
+/**
+ * Utility functions to convert XTM 1.0 legacy features into the TMDM equivalent.
+ * 
+ * @author Lars Heuer (heuer[at]semagia.com) <a href="http://www.semagia.com/">Semagia</a>
+ * @version $Rev:$ - $Date:$
+ */
+public class XTM10Utils {
+
+    private static final Logger LOG = Logger.getLogger(XTM10Utils.class.getName());
+
+    /**
+     * Converts the XTM 1.0 reification mechanism into TMDM reification.
+     * <p>
+     * In XTM 1.0 a construct was reified if it has a source locator (item 
+     * identifier) equals to a subject identifier of a topic. In TMDM, the 
+     * reification of constructs modelled as a property.
+     * </p>
+     * <p>
+     * This function converts the XTM 1.0 reification mechansim into the TMDM
+     * reification mechanism by setting the property of reified constructs to
+     * the reifying topic. The item identifier and subject identifier which 
+     * establish the XTM 1.0 reification will be removed.
+     * </p> 
+     *
+     * @param topicMap The {@link TopicMap} to convert.
+     */
+    public static void convertReification(final TopicMap topicMap) {
+        for (Topic topic: topicMap.getTopics()) {
+            if (topic.getReified() != null) {
+                continue;
+            }
+            for (Locator sid: topic.getSubjectIdentifiers()) {
+                Construct construct = (Construct) topicMap.getConstructByItemIdentifier(sid);
+                if (construct == null || construct instanceof Topic) {
+                    continue;
+                }
+                Reifiable reifiable = (Reifiable) construct;
+                if (reifiable.getReifier() != null) {
+                    LOG.info("Skipping reifiable construct " + reifiable.getId() + " since it is reified");
+                    continue;
+                }
+                reifiable.setReifier(topic);
+                reifiable.removeItemIdentifier(sid);
+                topic.removeSubjectIdentifier(sid);
+                break;
+            }
+        }
+    }
+
+}


Property changes on: tinytim/trunk/src/main/java/org/tinytim/utils/XTM10Utils.java
___________________________________________________________________
Added: svn:keywords
   + Rev Date Id
Added: svn:eol-style
   + native


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