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/*
 * Copyright 2013 Red Hat Inc. and/or its affiliates and other contributors.
 *
 * Licensed 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.switchyard.component.camel.rss.model;

import org.switchyard.config.model.Descriptor;
import org.switchyard.config.model.Namespace;

/**
 * A Camel RSS config model namespace.
 *
 * @author David Ward <[email protected]> © 2013 Red Hat Inc.
 */
public enum CamelRSSNamespace implements Namespace {

    /** The 2.0 namespace. */
    V_2_0("2.0"),
    /** The default namespace. */
    DEFAULT(null);

    private final Util _util;

    /**
     * Constructs a new CamelRSSNamespace with the specified version.
     * @param version the specified version, or null to discover the default
     */
    CamelRSSNamespace(String version) {
        _util = new Util(version);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String section() {
        return _util.section();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String version() {
        return _util.version();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean versionMatches(Namespace namespace) {
        return _util.versionMatches(namespace);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String uri() {
        return _util.uri();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean uriMatches(Namespace namespace) {
        return _util.uriMatches(namespace);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean isDefault() {
        return this == DEFAULT || uriMatches(DEFAULT);
    }

    /**
     * Gets the CamelRSSNamespace for the specified uri, or null if no matching uris are found.
     * @param uri the uri
     * @return the CamelRSSNamespace
     */
    public static CamelRSSNamespace fromUri(String uri) {
        return Util.fromUri(CamelRSSNamespace.class, uri);
    }

    @SuppressWarnings("serial")
    private static final class Util extends Namespace.Util {
        // static final since we only want to do the somewhat expensive work of instantiating this once!
        private static final Descriptor DESCRIPTOR = new Descriptor(CamelRSSNamespace.class);
        private Util(String version) {
            super(DESCRIPTOR, "urn:switchyard-component-camel-rss:config", version);
        }
    }

}