/**
* 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.predicates;
import java.util.NoSuchElementException;
import javax.annotation.Resource;
import javax.inject.Singleton;
import org.jclouds.aws.ec2.AWSEC2Client;
import org.jclouds.aws.ec2.domain.SpotInstanceRequest;
import org.jclouds.logging.Logger;
import org.jclouds.rest.ResourceNotFoundException;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;
import com.google.inject.Inject;
/**
*
*
* @author Adrian Cole
*/
@Singleton
public class SpotInstanceRequestActive implements Predicate<SpotInstanceRequest> {
private final AWSEC2Client client;
@Resource
protected Logger logger = Logger.NULL;
@Inject
public SpotInstanceRequestActive(AWSEC2Client client) {
this.client = client;
}
public boolean apply(SpotInstanceRequest spot) {
logger.trace("looking for state on spot %s", spot);
try {
spot = refresh(spot);
logger.trace("%s: looking for spot state %s: currently: %s", spot.getId(), SpotInstanceRequest.State.ACTIVE,
spot.getState());
if (spot.getState() == SpotInstanceRequest.State.CANCELLED
|| spot.getState() == SpotInstanceRequest.State.CLOSED)
throw new IllegalStateException(String.format("spot request %s %s", spot.getId(), spot.getState()));
if (spot.getFaultCode() != null)
throw new IllegalStateException(String.format("spot request %s fault code(%s) message(%s)", spot.getId(),
spot.getFaultCode(), spot.getFaultMessage()));
return spot.getState() == SpotInstanceRequest.State.ACTIVE;
} catch (ResourceNotFoundException e) {
return false;
} catch (NoSuchElementException e) {
return false;
}
}
private SpotInstanceRequest refresh(SpotInstanceRequest spot) {
return Iterables.getOnlyElement(client.getSpotInstanceServices().describeSpotInstanceRequestsInRegion(
spot.getRegion(), spot.getId()));
}
}