| /** |
| * Licensed to jclouds, Inc. (jclouds) under one or more |
| * contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. jclouds 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 static org.jclouds.util.SaxUtils.equalsOrSuffix; |
| |
| import java.util.Set; |
| |
| import javax.inject.Inject; |
| |
| import org.jclouds.ec2.domain.SecurityGroup; |
| import org.jclouds.http.HttpRequest; |
| import org.jclouds.http.functions.ParseSax; |
| import org.jclouds.http.functions.ParseSax.HandlerForGeneratedRequestWithResult; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXException; |
| |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.ImmutableSet.Builder; |
| |
| /** |
| * Parses: DescribeSecurityGroupsResponse |
| * xmlns="http://ec2.amazonaws.com/doc/2010-06-15/" |
| * |
| * @see <a href= |
| * "http://docs.amazonwebservices.com/AWSEC2/latest/APIReference/index.html?ApiReference-query-DescribesecurityGroupInfo.html" |
| * /> |
| * @author Adrian Cole |
| */ |
| public class DescribeSecurityGroupsResponseHandler extends |
| ParseSax.HandlerForGeneratedRequestWithResult<Set<SecurityGroup>> { |
| |
| private final SecurityGroupHandler securityGroupHandler; |
| |
| private StringBuilder currentText = new StringBuilder(); |
| private Builder<SecurityGroup> securityGroups = ImmutableSet.<SecurityGroup> builder(); |
| private boolean inSecurityGroupInfo; |
| |
| protected int itemDepth; |
| |
| @Inject |
| public DescribeSecurityGroupsResponseHandler(SecurityGroupHandler securityGroupHandler) { |
| this.securityGroupHandler = securityGroupHandler; |
| } |
| |
| @Override |
| public HandlerForGeneratedRequestWithResult<Set<SecurityGroup>> setContext(HttpRequest request) { |
| securityGroupHandler.setContext(request); |
| return super.setContext(request); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Set<SecurityGroup> getResult() { |
| return securityGroups.build(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void startElement(String url, String name, String qName, Attributes attributes) throws SAXException { |
| if (equalsOrSuffix(qName, "item")) { |
| itemDepth++; |
| } else if (equalsOrSuffix(qName, "securityGroupInfo")) { |
| inSecurityGroupInfo = true; |
| } |
| if (inSecurityGroupInfo) { |
| securityGroupHandler.startElement(url, name, qName, attributes); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void endElement(String uri, String name, String qName) throws SAXException { |
| if (equalsOrSuffix(qName, "item")) { |
| endItem(uri, name, qName); |
| itemDepth--; |
| } else if (equalsOrSuffix(qName, "securityGroupInfo")) { |
| inSecurityGroupInfo = false; |
| } else if (inSecurityGroupInfo) { |
| securityGroupHandler.endElement(uri, name, qName); |
| } |
| currentText = new StringBuilder(); |
| } |
| |
| protected void endItem(String uri, String name, String qName) throws SAXException { |
| if (inSecurityGroupInfo) { |
| if (itemDepth == 1) |
| securityGroups.add(securityGroupHandler.getResult()); |
| else |
| securityGroupHandler.endElement(uri, name, qName); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void characters(char ch[], int start, int length) { |
| if (inSecurityGroupInfo) { |
| securityGroupHandler.characters(ch, start, length); |
| } else { |
| currentText.append(ch, start, length); |
| } |
| } |
| |
| } |