org.jclouds.openstack.nova.v1_1.domain.zonescoped.ZoneAndName.java Source code

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Here is the source code for org.jclouds.openstack.nova.v1_1.domain.zonescoped.ZoneAndName.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.openstack.nova.v1_1.domain.zonescoped;

import static com.google.common.base.Objects.equal;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.base.Function;
import com.google.common.base.Objects;
import com.google.common.base.Splitter;
import com.google.common.base.Objects.ToStringHelper;
import com.google.common.collect.Iterables;

/**
 * Helpful when looking for resources by zone and name
 * 
 * @author Adrian Cole
 */
public class ZoneAndName {

    public final static Function<ZoneAndName, String> NAME_FUNCTION = new Function<ZoneAndName, String>() {

        @Override
        public String apply(ZoneAndName input) {
            return input.getName();
        }

    };

    public final static Function<ZoneAndName, String> ZONE_FUNCTION = new Function<ZoneAndName, String>() {

        @Override
        public String apply(ZoneAndName input) {
            return input.getZone();
        }

    };

    public static ZoneAndName fromSlashEncoded(String name) {
        Iterable<String> parts = Splitter.on('/').split(checkNotNull(name, "name"));
        checkArgument(Iterables.size(parts) == 2, "name must be in format zoneId/name");
        return new ZoneAndName(Iterables.get(parts, 0), Iterables.get(parts, 1));
    }

    public static ZoneAndName fromZoneAndName(String zoneId, String name) {
        return new ZoneAndName(zoneId, name);
    }

    private static String slashEncodeZoneAndName(String zoneId, String name) {
        return checkNotNull(zoneId, "zoneId") + "/" + checkNotNull(name, "name");
    }

    public String slashEncode() {
        return slashEncodeZoneAndName(zoneId, name);
    }

    protected final String zoneId;
    protected final String name;

    protected ZoneAndName(String zoneId, String name) {
        this.zoneId = checkNotNull(zoneId, "zoneId");
        this.name = checkNotNull(name, "name");
    }

    public String getZone() {
        return zoneId;
    }

    public String getName() {
        return name;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o)
            return true;
        if (o == null || getClass() != o.getClass())
            return false;
        ZoneAndName that = ZoneAndName.class.cast(o);
        return equal(this.zoneId, that.zoneId) && equal(this.name, that.name);
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(zoneId, name);
    }

    @Override
    public String toString() {
        return string().toString();
    }

    protected ToStringHelper string() {
        return Objects.toStringHelper("").add("zoneId", zoneId).add("name", name);
    }
}