org.jclouds.aws.ec2.xml.DescribeRegionsResponseHandler Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jclouds-aws Show documentation

jclouds Core components to access Amazon AWS

The newest version!

/**
 *
 * 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.aws.ec2.xml;

import java.net.URI;
import java.util.Map;

import javax.annotation.Resource;

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

import com.google.common.collect.Maps;

/**
 * 
 * @author Adrian Cole
 */
public class DescribeRegionsResponseHandler extends ParseSax.HandlerWithResult> {
   private StringBuilder currentText = new StringBuilder();

   private Map regionEndpoints = Maps.newHashMap();
   private String region;
   private URI regionEndpoint;
   @Resource
   protected Logger logger = Logger.NULL;

   public Map getResult() {
      return regionEndpoints;
   }

   public void endElement(String uri, String name, String qName) {
      if (qName.equals("regionName")) {
         String pending = currentText.toString().trim();
         if (pending.indexOf("Walrus") == -1)
            region = pending;
         // Nova uses regionUrl
      } else if (qName.equals("regionEndpoint") || qName.equals("regionUrl")) {
         String pending = currentText.toString().trim();
         if (pending.indexOf("Walrus") == -1)
            regionEndpoint = URI.create(pending.startsWith("http") ? pending : String.format("https://%s", pending));
      } else if (qName.equals("item") && region != null) {
         regionEndpoints.put(region, regionEndpoint);
         this.region = null;
         this.regionEndpoint = null;
      }
      currentText = new StringBuilder();
   }

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