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

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Here is the source code for org.jclouds.trmk.vcloud_0_8.functions.OrgNameVDCNameResourceNameToEndpoint.java

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/**
 * 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.trmk.vcloud_0_8.functions;

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

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

import javax.inject.Inject;

import org.jclouds.trmk.vcloud_0_8.domain.ReferenceType;
import org.jclouds.trmk.vcloud_0_8.domain.VDC;
import org.jclouds.trmk.vcloud_0_8.endpoints.Org;

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

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

    protected final Supplier<Map<String, Map<String, ? extends org.jclouds.trmk.vcloud_0_8.domain.VDC>>> orgVDCMap;
    protected final Supplier<ReferenceType> defaultOrg;
    protected final Supplier<ReferenceType> defaultVDC;

    @Inject
    public OrgNameVDCNameResourceNameToEndpoint(
            Supplier<Map<String, Map<String, ? extends org.jclouds.trmk.vcloud_0_8.domain.VDC>>> orgVDCMap,
            @Org Supplier<ReferenceType> defaultOrg,
            @org.jclouds.trmk.vcloud_0_8.endpoints.VDC Supplier<ReferenceType> defaultVDC) {
        this.orgVDCMap = orgVDCMap;
        this.defaultOrg = defaultOrg;
        this.defaultVDC = defaultVDC;
    }

    @SuppressWarnings("unchecked")
    public URI apply(Object from) {
        Iterable<Object> orgVDC = (Iterable<Object>) checkNotNull(from, "args");
        Object org = Iterables.get(orgVDC, 0);
        Object vDC = Iterables.get(orgVDC, 1);
        Object resource = Iterables.get(orgVDC, 2);
        if (org == null)
            org = defaultOrg.get().getName();
        if (vDC == null)
            vDC = defaultVDC.get().getName();
        Map<String, Map<String, ? extends org.jclouds.trmk.vcloud_0_8.domain.VDC>> orgToVDCs = orgVDCMap.get();
        checkState(orgToVDCs != null, "could not get map of org name to vdcs!");
        Map<String, ? extends org.jclouds.trmk.vcloud_0_8.domain.VDC> vDCs = orgToVDCs.get(org);
        if (vDCs == null)
            throw new NoSuchElementException("org " + org + " not found in " + orgToVDCs.keySet());
        org.jclouds.trmk.vcloud_0_8.domain.VDC vDCObject = vDCs.get(vDC);
        if (vDCObject == null)
            throw new NoSuchElementException("vdc " + vDC + " in org " + org + " not found in " + vDCs.keySet());
        return getEndpointOfResourceInVDC(org, vDC, resource, vDCObject);
    }

    protected abstract URI getEndpointOfResourceInVDC(Object org, Object vDC, Object resource, VDC vDCObject);

}