org.apache.cxf.bus.managers.ConduitInitiatorManagerImpl Maven / Gradle / Ivy

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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.apache.cxf.bus.managers;

import java.util.Map;

import java.util.ResourceBundle;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArraySet;

import javax.annotation.PreDestroy;
import javax.annotation.Resource;

import org.apache.cxf.Bus;
import org.apache.cxf.BusException;
import org.apache.cxf.common.i18n.BundleUtils;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.injection.NoJSR250Annotations;
import org.apache.cxf.transport.ConduitInitiator;
import org.apache.cxf.transport.ConduitInitiatorManager;
import org.apache.cxf.transport.TransportFinder;

@NoJSR250Annotations(unlessNull = "bus")
public final class ConduitInitiatorManagerImpl implements ConduitInitiatorManager {

    private static final ResourceBundle BUNDLE 
        = BundleUtils.getBundle(ConduitInitiatorManagerImpl.class);

    Map conduitInitiators;
    Set failed = new CopyOnWriteArraySet();
    Set loaded = new CopyOnWriteArraySet();

    private Bus bus;
    public ConduitInitiatorManagerImpl() {
        conduitInitiators = new ConcurrentHashMap(8, 0.75f, 4);
    }
    public ConduitInitiatorManagerImpl(Bus b) {
        conduitInitiators = new ConcurrentHashMap(8, 0.75f, 4);
        setBus(b);
    }
    
    @Resource
    public void setBus(Bus b) {
        bus = b;
        if (null != bus) {
            bus.setExtension(this, ConduitInitiatorManager.class);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.apache.cxf.bus.ConduitInitiatorManager#registerConduitInitiator(java.lang.String,
     *      org.apache.cxf.transports.ConduitInitiator)
     */
    public void registerConduitInitiator(String namespace, ConduitInitiator factory) {
        conduitInitiators.put(namespace, factory);
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.apache.cxf.bus.ConduitInitiatorManager#deregisterConduitInitiator(java.lang.String)
     */
    public void deregisterConduitInitiator(String namespace) {
        conduitInitiators.remove(namespace);
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.apache.cxf.bus.ConduitInitiatorManager#ConduitInitiator(java.lang.String)
     */
    /**
     * Returns the conduit initiator for the given namespace, constructing it
     * (and storing in the cache for future reference) if necessary, using its
     * list of factory classname to namespace mappings.
     * 
     * @param namespace the namespace.
     */
    public ConduitInitiator getConduitInitiator(String namespace) throws BusException {
        ConduitInitiator factory = conduitInitiators.get(namespace);
        if (factory == null && !failed.contains(namespace)) {
            factory = new TransportFinder(bus,
                    conduitInitiators,
                    loaded,
                    ConduitInitiator.class)
                .findTransportForNamespace(namespace);
        }
        if (factory == null) {
            failed.add(namespace);
            throw new BusException(new Message("NO_CONDUIT_INITIATOR", BUNDLE, namespace));
        }
        return factory;
    }

    @PreDestroy
    public void shutdown() {
        // nothing to do
    }

    public ConduitInitiator getConduitInitiatorForUri(String uri) {
        ConduitInitiator factory = new TransportFinder(bus,
            conduitInitiators,
            loaded,
            ConduitInitiator.class).findTransportForURI(uri);
        
        return factory;
    }
}