org.jclouds.slicehost.compute.strategy.SlicehostListNodesStrategy.java Source code

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Here is the source code for org.jclouds.slicehost.compute.strategy.SlicehostListNodesStrategy.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.slicehost.compute.strategy;

import javax.inject.Inject;
import javax.inject.Singleton;

import org.jclouds.compute.domain.ComputeMetadata;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.predicates.NodePredicates;
import org.jclouds.compute.strategy.ListNodesStrategy;
import org.jclouds.slicehost.SlicehostClient;
import org.jclouds.slicehost.domain.Slice;

import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;

/**
 * 
 * @author Adrian Cole
 */
@Singleton
public class SlicehostListNodesStrategy implements ListNodesStrategy {
    private final SlicehostClient client;
    private final Function<Slice, NodeMetadata> sliceToNodeMetadata;

    @Inject
    protected SlicehostListNodesStrategy(SlicehostClient client,
            Function<Slice, NodeMetadata> sliceToNodeMetadata) {
        this.client = client;
        this.sliceToNodeMetadata = sliceToNodeMetadata;
    }

    @Override
    public Iterable<? extends ComputeMetadata> listNodes() {
        return listDetailsOnNodesMatching(NodePredicates.all());
    }

    @Override
    public Iterable<? extends NodeMetadata> listDetailsOnNodesMatching(Predicate<ComputeMetadata> filter) {
        return Iterables.filter(Iterables.transform(client.listSlices(), sliceToNodeMetadata), filter);
    }
}