| /** |
| * 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.currentOrNull; |
| import static org.jclouds.util.SaxUtils.equalsOrSuffix; |
| |
| import org.jclouds.aws.util.AWSUtils; |
| 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.jclouds.location.Region; |
| import org.jclouds.rest.internal.GeneratedHttpRequest; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXException; |
| |
| import com.google.common.base.Supplier; |
| import com.google.inject.Inject; |
| |
| /** |
| * @author Adrian Cole |
| */ |
| public class SecurityGroupHandler extends ParseSax.HandlerForGeneratedRequestWithResult<SecurityGroup> { |
| |
| protected final IpPermissionHandler ipPermissionHandler; |
| protected final Supplier<String> defaultRegion; |
| |
| protected StringBuilder currentText = new StringBuilder(); |
| protected SecurityGroup.Builder<?> builder; |
| protected boolean inIpPermissions; |
| |
| protected int itemDepth; |
| |
| protected String region; |
| |
| @Inject |
| public SecurityGroupHandler(IpPermissionHandler ipPermissionHandler, @Region Supplier<String> defaultRegion) { |
| this.ipPermissionHandler = ipPermissionHandler; |
| this.defaultRegion = defaultRegion; |
| } |
| |
| protected SecurityGroup.Builder<?> builder() { |
| return SecurityGroup.builder().region(region); |
| } |
| |
| @Override |
| public HandlerForGeneratedRequestWithResult<SecurityGroup> setContext(HttpRequest request) { |
| region = AWSUtils.findRegionInArgsOrNull(GeneratedHttpRequest.class.cast(request)); |
| if (region == null) |
| region = defaultRegion.get(); |
| builder = builder(); |
| return super.setContext(request); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public SecurityGroup getResult() { |
| try { |
| return builder.build(); |
| } finally { |
| builder = builder(); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void startElement(String url, String name, String qName, Attributes attributes) throws SAXException { |
| if (equalsOrSuffix(qName, "item")) { |
| itemDepth++; |
| } else if (equalsOrSuffix(qName, "ipPermissions")) { |
| inIpPermissions = true; |
| } |
| if (inIpPermissions) { |
| ipPermissionHandler.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, "ipPermissions")) { |
| inIpPermissions = false; |
| itemDepth = 0; |
| } else if (inIpPermissions) { |
| ipPermissionHandler.endElement(uri, name, qName); |
| } else if (equalsOrSuffix(qName, "groupName")) { |
| builder.name(currentOrNull(currentText)); |
| } else if (equalsOrSuffix(qName, "groupId")) { |
| builder.id(currentOrNull(currentText)); |
| } else if (equalsOrSuffix(qName, "ownerId")) { |
| builder.ownerId(currentOrNull(currentText)); |
| } else if (equalsOrSuffix(qName, "groupDescription")) { |
| builder.description(currentOrNull(currentText)); |
| } |
| currentText = new StringBuilder(); |
| } |
| |
| protected void endItem(String uri, String name, String qName) throws SAXException { |
| if (inIpPermissions) { |
| if (itemDepth == 2) |
| builder.ipPermission(ipPermissionHandler.getResult()); |
| else |
| ipPermissionHandler.endElement(uri, name, qName); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void characters(char ch[], int start, int length) { |
| if (inIpPermissions) { |
| ipPermissionHandler.characters(ch, start, length); |
| } else { |
| currentText.append(ch, start, length); |
| } |
| } |
| |
| } |