/*

  * Copyright 2005-2008 The Kuali Foundation

  * 

  * 

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  * 

  * 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.kuali.rice.kew.batch;

 import java.io.File;

 import java.io.IOException;

 import java.util.Collection;

 import java.util.LinkedList;

 import java.util.List;

 /**

  * In someway allows muliple xml documents to be pushed into the xml loading 

  * 'pipeline'.

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class CompositeXmlDocCollection implements XmlDocCollection {

     protected Collection<XmlDocCollection> collections;

     public CompositeXmlDocCollection(Collection<XmlDocCollection> xmlDocCollections) {

         collections = xmlDocCollections;

     }

     public File getFile() {

         return null;

     }

     public List<? extends XmlDoc> getXmlDocs() {

         List<XmlDoc> docs = new LinkedList<XmlDoc>();

         for (XmlDocCollection collection : collections)

         {

             docs.addAll(collection.getXmlDocs());

         }

         return docs;

     }

     public void close() throws IOException {

         for (XmlDocCollection collection : collections)

         {

             collection.close();

         }

     }

     public String toString() {

         StringBuffer sb = new StringBuffer("[CompositeXmlDocCollection: ");

         for (XmlDocCollection collection : collections)

         {

             sb.append(collection.toString()).append(", ");

         }

         if (collections.size() > 0) {

             sb.setLength(sb.length() - 2);

         }

         sb.append("]");

         return sb.toString();

     }

 }