| 1 | /** |
| 2 | * |
| 3 | * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com> |
| 4 | * |
| 5 | * ==================================================================== |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * 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, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | * ==================================================================== |
| 18 | */ |
| 19 | package org.jclouds.ec2.xml; |
| 20 | |
| 21 | import java.util.Date; |
| 22 | import java.util.Set; |
| 23 | |
| 24 | import javax.annotation.Resource; |
| 25 | import javax.inject.Inject; |
| 26 | |
| 27 | import org.jclouds.aws.util.AWSUtils; |
| 28 | import org.jclouds.date.DateService; |
| 29 | import org.jclouds.ec2.domain.Attachment; |
| 30 | import org.jclouds.ec2.domain.BlockDevice; |
| 31 | import org.jclouds.ec2.domain.InstanceState; |
| 32 | import org.jclouds.ec2.domain.Reservation; |
| 33 | import org.jclouds.ec2.domain.RootDeviceType; |
| 34 | import org.jclouds.ec2.domain.RunningInstance; |
| 35 | import org.jclouds.ec2.domain.RunningInstance.Builder; |
| 36 | import org.jclouds.http.functions.ParseSax.HandlerForGeneratedRequestWithResult; |
| 37 | import org.jclouds.location.Region; |
| 38 | import org.jclouds.logging.Logger; |
| 39 | import org.xml.sax.Attributes; |
| 40 | |
| 41 | import com.google.common.collect.Sets; |
| 42 | import com.google.inject.Provider; |
| 43 | |
| 44 | /** |
| 45 | * |
| 46 | * @author Adrian Cole |
| 47 | */ |
| 48 | public abstract class BaseReservationHandler<T> extends HandlerForGeneratedRequestWithResult<T> { |
| 49 | |
| 50 | @Resource |
| 51 | protected Logger logger = Logger.NULL; |
| 52 | |
| 53 | protected final DateService dateService; |
| 54 | protected final String defaultRegion; |
| 55 | protected final Provider<Builder> builderProvider; |
| 56 | |
| 57 | @Inject |
| 58 | public BaseReservationHandler(DateService dateService, @Region String defaultRegion, |
| 59 | Provider<RunningInstance.Builder> builderProvider) { |
| 60 | this.dateService = dateService; |
| 61 | this.defaultRegion = defaultRegion; |
| 62 | this.builderProvider = builderProvider; |
| 63 | this.builder = builderProvider.get(); |
| 64 | } |
| 65 | |
| 66 | protected StringBuilder currentText = new StringBuilder(); |
| 67 | |
| 68 | protected Builder builder; |
| 69 | |
| 70 | protected int itemDepth; |
| 71 | boolean inInstancesSet; |
| 72 | // attachments |
| 73 | private String volumeId; |
| 74 | private Attachment.Status attachmentStatus; |
| 75 | private Date attachTime; |
| 76 | private boolean deleteOnTermination; |
| 77 | private String deviceName; |
| 78 | |
| 79 | // reservation stuff |
| 80 | private Set<String> groupIds = Sets.newLinkedHashSet(); |
| 81 | private String ownerId; |
| 82 | private String requesterId; |
| 83 | private String reservationId; |
| 84 | |
| 85 | private Set<RunningInstance> instances = Sets.newLinkedHashSet(); |
| 86 | |
| 87 | public void startElement(String uri, String name, String qName, Attributes attrs) { |
| 88 | if (qName.equals("item")) { |
| 89 | itemDepth++; |
| 90 | } else if (qName.equals("instancesSet")) { |
| 91 | inInstancesSet = true; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | protected String currentOrNull() { |
| 96 | String returnVal = currentText.toString().trim(); |
| 97 | return returnVal.equals("") ? null : returnVal; |
| 98 | } |
| 99 | |
| 100 | public void endElement(String uri, String name, String qName) { |
| 101 | if (qName.equals("item")) { |
| 102 | inItem(); |
| 103 | itemDepth--; |
| 104 | } else if (qName.equals("instancesSet")) { |
| 105 | inInstancesSet = false; |
| 106 | } else if (qName.equals("groupId")) { |
| 107 | groupIds.add(currentOrNull()); |
| 108 | } else if (qName.equals("ownerId")) { |
| 109 | ownerId = currentOrNull(); |
| 110 | } else if (qName.equals("requesterId")) { |
| 111 | requesterId = currentOrNull(); |
| 112 | } else if (qName.equals("reservationId")) { |
| 113 | reservationId = currentOrNull(); |
| 114 | } else if (qName.equals("amiLaunchIndex")) { |
| 115 | builder.amiLaunchIndex(currentOrNull()); |
| 116 | } else if (qName.equals("dnsName")) { |
| 117 | String dnsName = currentOrNull(); |
| 118 | // Eucalyptus |
| 119 | if (!"0.0.0.0".equals(dnsName)) |
| 120 | builder.dnsName(dnsName); |
| 121 | } else if (qName.equals("imageId")) { |
| 122 | builder.imageId(currentOrNull()); |
| 123 | } else if (qName.equals("instanceId")) { |
| 124 | builder.instanceId(currentOrNull()); |
| 125 | } else if (qName.equals("name")) { |
| 126 | builder.instanceState(InstanceState.fromValue(currentOrNull())); |
| 127 | } else if (qName.equals("instanceType")) { |
| 128 | builder.instanceType(currentOrNull()); |
| 129 | } else if (qName.equals("ipAddress")) { |
| 130 | builder.ipAddress(currentOrNull()); |
| 131 | } else if (qName.equals("kernelId")) { |
| 132 | builder.kernelId(currentOrNull()); |
| 133 | } else if (qName.equals("keyName")) { |
| 134 | builder.keyName(currentOrNull()); |
| 135 | } else if (qName.equals("launchTime")) { |
| 136 | builder.launchTime(parseDate()); |
| 137 | } else if (qName.equals("availabilityZone")) { |
| 138 | builder.availabilityZone(currentOrNull()); |
| 139 | } else if (qName.equals("virtualizationType")) { |
| 140 | builder.virtualizationType(currentOrNull()); |
| 141 | } else if (qName.equals("platform")) { |
| 142 | builder.platform(currentOrNull()); |
| 143 | } else if (qName.equals("privateDnsName")) { |
| 144 | String privateDnsName = currentOrNull(); |
| 145 | // Eucalyptus |
| 146 | if (!"0.0.0.0".equals(privateDnsName)) |
| 147 | builder.privateDnsName(privateDnsName); |
| 148 | } else if (qName.equals("privateIpAddress")) { |
| 149 | builder.privateIpAddress(currentOrNull()); |
| 150 | } else if (qName.equals("ramdiskId")) { |
| 151 | builder.ramdiskId(currentOrNull()); |
| 152 | } else if (qName.equals("reason")) { |
| 153 | builder.reason(currentOrNull()); |
| 154 | } else if (qName.equals("rootDeviceType")) { |
| 155 | builder.rootDeviceType(RootDeviceType.fromValue(currentOrNull())); |
| 156 | } else if (qName.equals("rootDeviceName")) { |
| 157 | builder.rootDeviceName(currentOrNull()); |
| 158 | } else if (qName.equals("deviceName")) { |
| 159 | deviceName = currentOrNull(); |
| 160 | } else if (qName.equals("volumeId")) { |
| 161 | volumeId = currentOrNull(); |
| 162 | } else if (qName.equals("status")) { |
| 163 | attachmentStatus = Attachment.Status.fromValue(currentText.toString().trim()); |
| 164 | } else if (qName.equals("attachTime")) { |
| 165 | attachTime = dateService.iso8601DateParse(currentText.toString().trim()); |
| 166 | } else if (qName.equals("deleteOnTermination")) { |
| 167 | deleteOnTermination = Boolean.parseBoolean(currentText.toString().trim()); |
| 168 | } else if (qName.equals("ebs")) { |
| 169 | builder.device(deviceName, new BlockDevice(volumeId, attachmentStatus, attachTime, deleteOnTermination)); |
| 170 | this.deviceName = null; |
| 171 | this.volumeId = null; |
| 172 | this.attachmentStatus = null; |
| 173 | this.attachTime = null; |
| 174 | this.deleteOnTermination = true; |
| 175 | } |
| 176 | currentText = new StringBuilder(); |
| 177 | } |
| 178 | |
| 179 | protected Date parseDate() { |
| 180 | try { |
| 181 | return dateService.iso8601DateParse(currentOrNull()); |
| 182 | } catch (RuntimeException e) { |
| 183 | // Eucalyptus |
| 184 | return dateService.iso8601SecondsDateParse(currentOrNull()); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | protected void inItem() { |
| 189 | if (endOfInstanceItem()) { |
| 190 | refineBuilderBeforeAddingInstance(); |
| 191 | instances.add(builder.build()); |
| 192 | builder = builderProvider.get(); |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | protected void refineBuilderBeforeAddingInstance() { |
| 197 | String region = getRequest() != null ? AWSUtils.findRegionInArgsOrNull(getRequest()) : null; |
| 198 | |
| 199 | // Eucalyptus |
| 200 | if (builder.getIpAddress() == null && builder.getDnsName() != null && builder.getDnsName().matches(".*[0-9]$")) { |
| 201 | builder.ipAddress(builder.getDnsName()); |
| 202 | builder.dnsName(null); |
| 203 | } |
| 204 | if (builder.getPrivateIpAddress() == null && builder.getPrivateDnsName() != null |
| 205 | && builder.getPrivateDnsName().matches(".*[0-9]$")) { |
| 206 | builder.privateIpAddress(builder.getPrivateDnsName()); |
| 207 | builder.privateDnsName(null); |
| 208 | } |
| 209 | |
| 210 | builder.region((region == null) ? defaultRegion : region); |
| 211 | builder.groupIds(groupIds); |
| 212 | } |
| 213 | |
| 214 | protected Builder builder() { |
| 215 | return builder; |
| 216 | } |
| 217 | |
| 218 | protected boolean endOfInstanceItem() { |
| 219 | return itemDepth <= 2 && inInstancesSet; |
| 220 | } |
| 221 | |
| 222 | public void characters(char ch[], int start, int length) { |
| 223 | currentText.append(ch, start, length); |
| 224 | } |
| 225 | |
| 226 | protected Reservation<? extends RunningInstance> newReservation() { |
| 227 | String region = getRequest() != null ? AWSUtils.findRegionInArgsOrNull(getRequest()) : null; |
| 228 | if (region == null) |
| 229 | region = defaultRegion; |
| 230 | Reservation<? extends RunningInstance> info = new Reservation<RunningInstance>(region, groupIds, instances, |
| 231 | ownerId, requesterId, reservationId); |
| 232 | this.groupIds = Sets.newLinkedHashSet(); |
| 233 | this.instances = Sets.newLinkedHashSet(); |
| 234 | this.ownerId = null; |
| 235 | this.requesterId = null; |
| 236 | this.reservationId = null; |
| 237 | return info; |
| 238 | } |
| 239 | |
| 240 | } |