org.jclouds.trmk.vcloud_0_8.functions.OrgURIToEndpoint.java Source code

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Here is the source code for org.jclouds.trmk.vcloud_0_8.functions.OrgURIToEndpoint.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.trmk.vcloud_0_8.functions;

import java.net.URI;
import java.util.Map;

import org.jclouds.rest.ResourceNotFoundException;
import org.jclouds.trmk.vcloud_0_8.domain.Org;
import org.jclouds.trmk.vcloud_0_8.domain.ReferenceType;

import com.google.common.base.Function;
import com.google.common.base.Supplier;
import com.google.common.collect.Maps;

/**
 * 
 * @author Adrian Cole
 */
public abstract class OrgURIToEndpoint implements Function<Object, URI> {

    protected final Supplier<Map<String, ? extends Org>> orgMap;
    protected final Supplier<ReferenceType> defaultOrg;

    public OrgURIToEndpoint(Supplier<Map<String, ? extends Org>> orgMap,
            @org.jclouds.trmk.vcloud_0_8.endpoints.Org Supplier<ReferenceType> defaultUri) {
        this.orgMap = orgMap;
        this.defaultOrg = defaultUri;
    }

    public URI apply(Object from) {
        Map<URI, ? extends Org> uriToOrg = Maps.uniqueIndex(orgMap.get().values(), new Function<Org, URI>() {

            @Override
            public URI apply(Org from) {
                return from.getHref();
            }

        });
        try {
            Org org = uriToOrg.get(from == null ? defaultOrg.get().getHref() : from);
            return getUriFromOrg(org);
        } catch (NullPointerException e) {
            throw new ResourceNotFoundException("org " + from + " not found in: " + uriToOrg, e);
        }
    }

    protected abstract URI getUriFromOrg(Org org);

}