Moving to root below branch label

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

source/java/org/alfresco/repo/template/BasePathResultsMap.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.repo.template;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+import org.alfresco.service.ServiceRegistry;
+import org.alfresco.service.cmr.repository.NodeRef;
+import org.alfresco.service.cmr.repository.TemplateNode;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+/**
+ * A special Map that executes an XPath against the parent Node as part of the get()
+ * Map interface implementation.
+ * 
+ * @author Kevin Roast
+ */
+public abstract class BasePathResultsMap extends HashMap implements Cloneable
+{
+    protected static Log logger = LogFactory.getLog(BasePathResultsMap.class);
+    protected TemplateNode parent;
+    protected ServiceRegistry services = null;
+    
+    /**
+     * Constructor
+     * 
+     * @param parent         The parent TemplateNode to execute searches from 
+     * @param services       The ServiceRegistry to use
+     */
+    public BasePathResultsMap(TemplateNode parent, ServiceRegistry services)
+    {
+        super(1, 1.0f);
+        this.services = services;
+        this.parent = parent;
+    }
+    
+    /**
+     * @see java.util.Map#get(java.lang.Object)
+     */
+    public abstract Object get(Object key);
+    
+    protected List<TemplateNode> getChildrenByXPath(String xpath, boolean firstOnly)
+    {
+        List<TemplateNode> result = null;
+        
+        if (xpath.length() != 0)
+        {
+            if (logger.isDebugEnabled())
+                logger.debug("Executing xpath: " + xpath);
+            
+            List<NodeRef> nodes = this.services.getSearchService().selectNodes(
+                    this.parent.getNodeRef(),
+                    xpath,
+                    null,
+                    this.services.getNamespaceService(),
+                    false);
+            
+            // see if we only want the first result
+            if (firstOnly == true)
+            {
+                if (nodes.size() != 0)
+                {
+                    result = new ArrayList<TemplateNode>(1);
+                    result.add(new TemplateNode(nodes.get(0), this.services, this.parent.getImageResolver()));
+                }
+            }
+            // or all the results
+            else
+            {
+                result = new ArrayList<TemplateNode>(nodes.size()); 
+                for (NodeRef ref : nodes)
+                {
+                    result.add(new TemplateNode(ref, this.services, this.parent.getImageResolver()));
+                }
+            }
+        }
+        
+        return result != null ? result : new ArrayList<TemplateNode>(0);
+    }
+}