org.jclouds.abiquo.domain.util.LinkUtils.java Source code

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Here is the source code for org.jclouds.abiquo.domain.util.LinkUtils.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.abiquo.domain.util;

import static com.google.common.collect.Iterables.filter;

import java.util.List;

import org.jclouds.abiquo.predicates.LinkPredicates;

import com.abiquo.model.rest.RESTLink;
import com.abiquo.model.transport.SingleResourceTransportDto;
import com.google.common.collect.ImmutableList;

/**
 * Utility method to work with {@link RESTLink} objects.
 * 
 * @author Ignasi Barrera
 */
public class LinkUtils {
    /**
     * Get the link that points to the current resource.
     * 
     * @param dto
     *           The target dto.
     * @return The link to the current resource.
     */
    public static RESTLink getSelfLink(final SingleResourceTransportDto dto) {
        RESTLink link = dto.searchLink("edit");
        return link == null ? dto.searchLink("self") : link;
    }

    /**
     * Filter the given link list and return only the links that point to a NIC.
     * 
     * @param links
     *           The list with the links to filter.
     * @return A list with all links that point to a NIC.
     */
    public static List<RESTLink> filterNicLinks(final List<RESTLink> links) {
        return ImmutableList.copyOf(filter(links, LinkPredicates.isNic()));
    }
}