elb/src/main/java/org/jclouds/elb/xml/CreateLoadBalancerResponseHandler.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.elb.xml;

import javax.annotation.Resource;

import org.jclouds.http.functions.ParseSax.HandlerWithResult;
import org.jclouds.logging.Logger;

public class CreateLoadBalancerResponseHandler extends HandlerWithResult<String> {

    @Resource
    protected Logger logger = Logger.NULL;

    private String dnsName;
    private StringBuilder currentText = new StringBuilder();

    protected String currentOrNull() {
       String returnVal = currentText.toString().trim();
       return returnVal.equals("") ? null : returnVal;
    }

    public void endElement(String uri, String name, String qName) {
       if (qName.equals("DNSName")) {
          dnsName = currentOrNull();
       }
       currentText.setLength(0);
    }

    public void characters(char[] ch, int start, int length) {
       currentText.append(ch, start, length);
    }
    
    @Override
    public String getResult() {
       return dnsName;
    }
}