com.zz.cluster4spring.registry.support.ex.DefaultConsumingRegistry.java Source code

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Here is the source code for com.zz.cluster4spring.registry.support.ex.DefaultConsumingRegistry.java

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/******************************************************************************
 * Copyright(c) 2005-2007 SoftAMIS (http://www.soft-amis.com)                 *
 * All Rights Reserved.                                                       *
 *                                                                            *
 * 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 com.zz.cluster4spring.registry.support.ex;

import java.io.Serializable;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextClosedEvent;
import org.springframework.context.event.ContextRefreshedEvent;

/**
 * Default implementation of
 * {@link com.zz.cluster4spring.registry.ConsumingRegistry}. It issues network
 * notifications when item for given key should be requested or given item
 * should be invalidated. To isolate details of network communication, it
 * delegates the actual details of network communication to corresponding
 * {@link CommunicationHelper}. In addition, it implements methods from
 * {@link RegistryEventProcessor} interface which allows this class to handle
 * notifications about item registrations/undregistration that are issued by
 * provider registry and also notifications about items invalidation which could
 * be issued by another ConsumerRegistries.
 * <p/>
 * The {@link CommunicationHelper} used by instance of this class is source for
 * events processed by RegistryEventProcessor.
 *
 * @author Andrew Sazonov
 * @version 1.0
 * @see CommunicationHelper
 */
public class DefaultConsumingRegistry<K extends Serializable, V extends Serializable>
        extends com.zz.cluster4spring.registry.support.DefaultConsumingRegistry<K, V>
        implements InitializingBean, ApplicationListener {
    protected static final Log fLog = LogFactory.getLog(DefaultConsumingRegistry.class);

    public DefaultConsumingRegistry() {

        super();

    }

    /**
     * Invoked by Spring and is used to check that CommunicationHelper is set.
     *
     * @throws Exception
     */
    public void afterPropertiesSet() throws Exception {
        if (fLog.isDebugEnabled()) {
            fLog.debug("this run doInit parameters is null");
        }
        doInit();

    }

    @Override
    public void onApplicationEvent(ApplicationEvent aEvent) {
        try {
            if (aEvent instanceof ContextRefreshedEvent) {
                // doInit();
            }

            if (aEvent instanceof ContextClosedEvent) {
                close();
            }
        } catch (Exception e) {
            if (fLog.isErrorEnabled()) {
                fLog.error("Exception during processing application event. ", e);
            }
        }
    }

}