/**
* 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.aws.ec2.xml;
import static org.jclouds.util.SaxUtils.currentOrNull;
import static org.jclouds.util.SaxUtils.equalsOrSuffix;
import javax.inject.Inject;
import org.jclouds.aws.ec2.domain.SpotInstanceRequest;
import org.jclouds.aws.ec2.domain.SpotInstanceRequest.Builder;
import org.jclouds.aws.util.AWSUtils;
import org.jclouds.date.DateCodec;
import org.jclouds.date.DateCodecFactory;
import org.jclouds.ec2.xml.TagSetHandler;
import org.jclouds.http.functions.ParseSax;
import org.jclouds.location.Region;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import com.google.common.base.Supplier;
/**
*
* @author Adrian Cole
*/
public class SpotInstanceHandler extends ParseSax.HandlerForGeneratedRequestWithResult<SpotInstanceRequest> {
private StringBuilder currentText = new StringBuilder();
protected final DateCodec dateCodec;
protected final Supplier<String> defaultRegion;
protected final Builder builder;
protected boolean inLaunchSpecification;
protected final LaunchSpecificationHandler launchSpecificationHandler;
protected boolean inTagSet;
protected final TagSetHandler tagSetHandler;
@Inject
public SpotInstanceHandler(DateCodecFactory dateCodecFactory, @Region Supplier<String> defaultRegion,
LaunchSpecificationHandler launchSpecificationHandler, TagSetHandler tagSetHandler,
SpotInstanceRequest.Builder builder) {
this.dateCodec = dateCodecFactory.iso8601();
this.defaultRegion = defaultRegion;
this.launchSpecificationHandler = launchSpecificationHandler;
this.tagSetHandler = tagSetHandler;
this.builder = builder;
}
public SpotInstanceRequest getResult() {
try {
String region = getRequest() != null ? AWSUtils.findRegionInArgsOrNull(getRequest()) : null;
if (region == null)
region = defaultRegion.get();
return builder.region(region).build();
} finally {
builder.clear();
}
}
@Override
public void startElement(String uri, String name, String qName, Attributes attrs) throws SAXException {
if (equalsOrSuffix(qName, "launchSpecification")) {
inLaunchSpecification = true;
} else if (equalsOrSuffix(qName, "tagSet")) {
inTagSet = true;
}
if (inLaunchSpecification) {
launchSpecificationHandler.startElement(uri, name, qName, attrs);
} else if (inTagSet) {
tagSetHandler.startElement(uri, name, qName, attrs);
}
}
@Override
public void endElement(String uri, String name, String qName) throws SAXException {
if (equalsOrSuffix(qName, "tagSet")) {
inTagSet = false;
builder.tags(tagSetHandler.getResult());
} else if (inTagSet) {
tagSetHandler.endElement(uri, name, qName);
}
if (qName.equals("launchSpecification")) {
inLaunchSpecification = false;
builder.launchSpecification(launchSpecificationHandler.getResult());
} else if (inLaunchSpecification) {
launchSpecificationHandler.endElement(uri, name, qName);
}
if (qName.equals("spotInstanceRequestId")) {
builder.id(currentOrNull(currentText));
} else if (qName.equals("instanceId")) {
builder.instanceId(currentOrNull(currentText));
} else if (qName.equals("launchedAvailabilityZone")) {
builder.launchedAvailabilityZone(currentOrNull(currentText));
} else if (qName.equals("availabilityZoneGroup")) {
builder.availabilityZoneGroup(currentOrNull(currentText));
} else if (qName.equals("launchGroup")) {
builder.launchGroup(currentOrNull(currentText));
} else if (qName.equals("code")) {
builder.faultCode(currentOrNull(currentText));
} else if (qName.equals("message")) {
builder.faultMessage(currentOrNull(currentText));
} else if (qName.equals("spotPrice")) {
String price = currentOrNull(currentText);
if (price != null)
builder.spotPrice(Float.parseFloat(price));
} else if (qName.equals("type")) {
String type = currentOrNull(currentText);
if (type != null)
builder.type(SpotInstanceRequest.Type.fromValue(type));
} else if (qName.equals("state")) {
String rawState = currentOrNull(currentText);
if (rawState != null) {
builder.rawState(rawState);
builder.state(SpotInstanceRequest.State.fromValue(rawState));
}
} else if (qName.equals("createTime")) {
String createTime = currentOrNull(currentText);
if (createTime != null)
builder.createTime(dateCodec.toDate(createTime));
} else if (qName.equals("productDescription")) {
builder.productDescription(currentOrNull(currentText));
}
currentText = new StringBuilder();
}
@Override
public void characters(char ch[], int start, int length) {
if (inLaunchSpecification) {
launchSpecificationHandler.characters(ch, start, length);
} else if (inTagSet) {
tagSetHandler.characters(ch, start, length);
} else {
currentText.append(ch, start, length);
}
}
}