/*
* 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.ec2.xml;
import java.util.Set;
import javax.annotation.Resource;
import javax.inject.Inject;
import org.jclouds.aws.util.AWSUtils;
import org.jclouds.ec2.domain.PublicIpInstanceIdPair;
import org.jclouds.http.functions.ParseSax.HandlerForGeneratedRequestWithResult;
import org.jclouds.location.Region;
import org.jclouds.logging.Logger;
import com.google.common.base.Supplier;
import com.google.common.collect.Sets;
/**
*
* @author Adrian Cole
*/
public class DescribeAddressesResponseHandler extends
HandlerForGeneratedRequestWithResult<Set<PublicIpInstanceIdPair>> {
@Resource
protected Logger logger = Logger.NULL;
private Set<PublicIpInstanceIdPair> pairs = Sets.newLinkedHashSet();
private String ipAddress;
private StringBuilder currentText = new StringBuilder();
@Inject
@Region
Supplier<String> defaultRegion;
private String instanceId;
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("publicIp")) {
ipAddress = currentOrNull();
} else if (qName.equals("instanceId")) {
instanceId = currentOrNull();
} else if (qName.equals("item")) {
String region = AWSUtils.findRegionInArgsOrNull(getRequest());
if (region == null)
region = defaultRegion.get();
pairs.add(new PublicIpInstanceIdPair(region, ipAddress, instanceId));
ipAddress = null;
instanceId = null;
}
currentText = new StringBuilder();
}
public void characters(char ch[], int start, int length) {
currentText.append(ch, start, length);
}
@Override
public Set<PublicIpInstanceIdPair> getResult() {
return pairs;
}
}