org.jclouds.aws.ec2.compute.predicates.AWSEC2InstancePresent.java Source code

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Here is the source code for org.jclouds.aws.ec2.compute.predicates.AWSEC2InstancePresent.java

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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
 *
 * ====================================================================
 * Licensed 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.compute.predicates;

import static com.google.common.base.Preconditions.checkNotNull;

import javax.inject.Singleton;

import org.jclouds.aws.ec2.AWSEC2Client;
import org.jclouds.ec2.compute.domain.RegionAndName;
import org.jclouds.ec2.compute.predicates.InstancePresent;

import com.google.common.collect.Iterables;
import com.google.inject.Inject;

/**
 * 
 * @author Adrian Cole
 */
@Singleton
public class AWSEC2InstancePresent extends InstancePresent {

    private final AWSEC2Client client;

    @Inject
    public AWSEC2InstancePresent(AWSEC2Client client) {
        super(client);
        this.client = checkNotNull(client, "client");
    }

    @Override
    protected void refresh(RegionAndName instance) {
        if (instance.getName().indexOf("sir-") != 0)
            super.refresh(instance);
        else
            Iterables.getOnlyElement(client.getSpotInstanceServices()
                    .describeSpotInstanceRequestsInRegion(instance.getRegion(), instance.getName()));
    }
}