labs/fgcp/src/main/java/org/jclouds/fujitsu/fgcp/xml/internal/GetPerformanceInformationResponse.java

/**
 * 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.fujitsu.fgcp.xml.internal;

import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;

import org.jclouds.fujitsu.fgcp.domain.PerformanceInfo;

import com.google.common.collect.ImmutableSet;

/**
 * Wrapper for GetPerformanceInformationResponse.
 * 
 * @author Dies Koper
 */
@XmlRootElement(name = "GetPerformanceInformationResponse")
public class GetPerformanceInformationResponse extends
        SetWithStatusResponse<PerformanceInfo> {
    @XmlElementWrapper(name = "performanceinfos")
    @XmlElement(name = "performanceinfo")
    private Set<PerformanceInfo> stats = new LinkedHashSet<PerformanceInfo>();

    @Override
    protected Set<PerformanceInfo> delegate() {
        return stats == null ? ImmutableSet.<PerformanceInfo> of()
                : Collections.unmodifiableSet(stats);
    }
}