| 1 | /** |
| 2 | * Licensed to jclouds, Inc. (jclouds) under one or more |
| 3 | * contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. jclouds licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.jclouds.aws.ec2.xml; |
| 20 | |
| 21 | import static org.jclouds.util.SaxUtils.currentOrNull; |
| 22 | import static org.jclouds.util.SaxUtils.equalsOrSuffix; |
| 23 | |
| 24 | import java.util.Set; |
| 25 | |
| 26 | import javax.inject.Inject; |
| 27 | |
| 28 | import org.jclouds.aws.ec2.domain.AWSRunningInstance; |
| 29 | import org.jclouds.date.DateService; |
| 30 | import org.jclouds.ec2.domain.Reservation; |
| 31 | import org.jclouds.ec2.domain.RunningInstance; |
| 32 | import org.jclouds.location.Region; |
| 33 | import org.xml.sax.Attributes; |
| 34 | import org.xml.sax.SAXException; |
| 35 | |
| 36 | import com.google.common.collect.Sets; |
| 37 | import com.google.inject.Provider; |
| 38 | |
| 39 | /** |
| 40 | * Parses the following XML document: |
| 41 | * <p/> |
| 42 | * DescribeImagesResponse xmlns="http: |
| 43 | * |
| 44 | * @author Adrian Cole |
| 45 | * @see <a href="http: /> |
| 46 | */ |
| 47 | public class AWSDescribeInstancesResponseHandler extends |
| 48 | BaseAWSReservationHandler<Set<Reservation<? extends RunningInstance>>> { |
| 49 | private Set<Reservation<? extends RunningInstance>> reservations = Sets.newLinkedHashSet(); |
| 50 | private boolean inTagSet; |
| 51 | private String key; |
| 52 | private String value; |
| 53 | |
| 54 | @Inject |
| 55 | AWSDescribeInstancesResponseHandler(DateService dateService, @Region String defaultRegion, |
| 56 | Provider<AWSRunningInstance.Builder> builderProvider, TagSetHandler tagSetHandler) { |
| 57 | super(dateService, defaultRegion, builderProvider); |
| 58 | } |
| 59 | |
| 60 | @Override |
| 61 | public void startElement(String uri, String localName, String qName, Attributes attrs) throws SAXException { |
| 62 | super.startElement(uri, localName, qName, attrs); |
| 63 | if (equalsOrSuffix(qName, "tagSet")) { |
| 64 | inTagSet = true; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | @Override |
| 69 | public void endElement(String uri, String name, String qName) { |
| 70 | if (equalsOrSuffix(qName, "tagSet")) { |
| 71 | inTagSet = false; |
| 72 | } else if (inTagSet) { |
| 73 | if (equalsOrSuffix(qName, "key")) { |
| 74 | key = currentOrNull(currentText); |
| 75 | } else if (equalsOrSuffix(qName, "value")) { |
| 76 | value = currentOrNull(currentText); |
| 77 | } |
| 78 | } |
| 79 | super.endElement(uri, name, qName); |
| 80 | } |
| 81 | |
| 82 | @Override |
| 83 | public Set<Reservation<? extends RunningInstance>> getResult() { |
| 84 | return reservations; |
| 85 | } |
| 86 | |
| 87 | protected boolean endOfReservationItem() { |
| 88 | return itemDepth == 1; |
| 89 | } |
| 90 | |
| 91 | @Override |
| 92 | protected void inItem() { |
| 93 | if (endOfReservationItem()) { |
| 94 | reservations.add(super.newReservation()); |
| 95 | } else if (inTagSet) { |
| 96 | builder.tag(key, value); |
| 97 | key = null; |
| 98 | value = null; |
| 99 | } else { |
| 100 | super.inItem(); |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | protected boolean endOfInstanceItem() { |
| 105 | return itemDepth == 2 && inInstancesSet; |
| 106 | } |
| 107 | } |