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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. 
 *
 * ====================================================================
 * 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.jclouds.vcloud.terremark.xml;

import java.util.Set;

import javax.annotation.Resource;
import javax.inject.Inject;

import org.jclouds.http.functions.ParseSax.HandlerWithResult;
import org.jclouds.logging.Logger;
import org.jclouds.vcloud.terremark.domain.KeyPair;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

import com.google.common.collect.Sets;

/**
 * @author Adrian Cole
 */
public class KeyPairsHandler extends HandlerWithResult> {

   @Resource
   protected Logger logger = Logger.NULL;
   private final KeyPairHandler handler;
   Set result = Sets.newLinkedHashSet();

   @Inject
   public KeyPairsHandler(KeyPairHandler handler) {
      this.handler = handler;
   }

   @Override
   public Set getResult() {
      return result;
   }

   @Override
   public void startElement(String uri, String localName, String qName,
         Attributes attributes) throws SAXException {
      handler.startElement(uri, localName, qName, attributes);
   }

   public void endElement(String uri, String name, String qName) {
      handler.endElement(uri, name, qName);
      if (qName.equals("Key")) {
         result.add(handler.getResult());
      }
   }

   public void characters(char ch[], int start, int length) {
      handler.characters(ch, start, length);
   }

}