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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2005 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/service/namespace/QNameMap.java

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+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * 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.alfresco.service.namespace;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+import org.alfresco.service.ServiceRegistry;
+import org.alfresco.util.ApplicationContextHelper;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * A Map that holds as it's key a QName stored in it's internal String representation.
+ * Calls to get and put automatically map the key to and from the QName representation.
+ * 
+ * @author gavinc
+ */
+public class QNameMap<K,V> implements Map, Cloneable
+{
+    protected static Log logger = LogFactory.getLog(QNameMap.class);
+    protected Map<String, Object> contents = new HashMap<String, Object>(11, 1.0f);
+    protected NamespacePrefixResolver resolver = null;
+    
+    /**
+     * Constructor
+     * 
+     * @param resolver      Mandatory NamespacePrefixResolver helper
+     */
+    public QNameMap(NamespacePrefixResolver resolver)
+    {
+        if (resolver == null)
+        {
+            throw new IllegalArgumentException("NamespacePrefixResolver is mandatory.");
+        }
+        this.resolver = resolver;
+    }
+    
+    /**
+     * @see java.util.Map#size()
+     */
+    public final int size()
+    {
+        return this.contents.size();
+    }
+    
+    /**
+     * @see java.util.Map#isEmpty()
+     */
+    public boolean isEmpty()
+    {
+        return this.contents.isEmpty();
+    }
+    
+    /**
+     * @see java.util.Map#containsKey(java.lang.Object)
+     */
+    public boolean containsKey(Object key)
+    {
+        return (this.contents.containsKey(QName.resolveToQNameString(resolver, (String)key)));
+    }
+    
+    /**
+     * @see java.util.Map#containsValue(java.lang.Object)
+     */
+    public boolean containsValue(Object value)
+    {
+        return this.contents.containsValue(value);
+    }
+    
+    /**
+     * @see java.util.Map#get(java.lang.Object)
+     */
+    public Object get(Object key)
+    {
+        String qnameKey = QName.resolveToQNameString(resolver, key.toString());
+        Object obj = this.contents.get(qnameKey);
+        
+        return obj;
+    }
+    
+    /**
+     * @see java.util.Map#put(K, V)
+     */
+    public Object put(Object key, Object value)
+    {
+        return this.contents.put(QName.resolveToQNameString(resolver, (String)key), value);
+    }
+    
+    /**
+     * @see java.util.Map#remove(java.lang.Object)
+     */
+    public Object remove(Object key)
+    {
+        return this.contents.remove(QName.resolveToQNameString(resolver, (String)key));
+    }
+    
+    /**
+     * @see java.util.Map#putAll(java.util.Map)
+     */
+    public void putAll(Map t)
+    {
+        for (Object key : t.keySet())
+        {
+            this.put(key, t.get(key));
+        }
+    }
+    
+    /**
+     * @see java.util.Map#clear()
+     */
+    public void clear()
+    {
+        this.contents.clear();
+    }
+    
+    /**
+     * @see java.util.Map#keySet()
+     */
+    public Set keySet()
+    {
+        return this.contents.keySet();
+    }
+    
+    /**
+     * @see java.util.Map#values()
+     */
+    public Collection values()
+    {
+        return this.contents.values();
+    }
+    
+    /**
+     * @see java.util.Map#entrySet()
+     */
+    public Set entrySet()
+    {
+        return this.contents.entrySet();
+    }
+    
+    /**
+     * Override Object.toString() to provide useful debug output
+     */
+    public String toString()
+    {
+        return this.contents.toString();
+    }
+    
+    /**
+     * Shallow copy the map by copying keys and values into a new QNameMap
+     */
+    public Object clone()
+    {
+        QNameMap map = new QNameMap(resolver);
+        map.putAll(this);
+        
+        return map;
+    }
+}