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• RemoteClientImpl.java

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org.refcodes.remoting.RemoteClientImpl Maven / Gradle / Ivy

// /////////////////////////////////////////////////////////////////////////////
// REFCODES.ORG
// =============================================================================
// This code is copyright (c) by Siegfried Steiner, Munich, Germany and licensed
// under the following (see "http://en.wikipedia.org/wiki/Multi-licensing")
// licenses:
// =============================================================================
// GNU General Public License, v3.0 ("http://www.gnu.org/licenses/gpl-3.0.html")
// together with the GPL linking exception applied; as being applied by the GNU
// Classpath ("http://www.gnu.org/software/classpath/license.html")
// =============================================================================
// Apache License, v2.0 ("http://www.apache.org/licenses/TEXT-2.0")
// =============================================================================
// Please contact the copyright holding author(s) of the software artifacts in
// question for licensing issues not being covered by the above listed licenses,
// also regarding commercial licensing models or regarding the compatibility
// with other open source licenses.
// /////////////////////////////////////////////////////////////////////////////
package org.refcodes.remoting;

import java.io.IOException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.WeakHashMap;
import java.util.concurrent.ExecutorService;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.refcodes.component.DigestException;
import org.refcodes.controlflow.ControlFlowUtility;
import org.refcodes.controlflow.RetryTimeout;
import org.refcodes.data.IoTimeout;
import org.refcodes.data.RetryLoopCount;
import org.refcodes.data.SleepLoopTime;
import org.refcodes.exception.TimeoutIOException;
import org.refcodes.exception.VetoException;
import org.refcodes.generator.Generator;
import org.refcodes.generator.UniqueIdGenerator;
import org.refcodes.mixin.BusyAccessor;
import org.refcodes.mixin.DisposedAccessor;
import org.refcodes.mixin.Lockable;
import org.refcodes.remoting.RemoteClient.ProxyControl;

/**
 * Abstract implementation of the {@link RemoteClient}'s base functionality.
 */
public class RemoteClientImpl extends AbstractRemote implements RemoteClient {

	// /////////////////////////////////////////////////////////////////////////
	// STATICS:
	// /////////////////////////////////////////////////////////////////////////

	private static Logger LOGGER = Logger.getLogger( RemoteClientImpl.class.getName() );

	// /////////////////////////////////////////////////////////////////////////
	// VARIABLES:
	// /////////////////////////////////////////////////////////////////////////

	private InstanceHandler _instanceHandler = new InstanceHandler();

	// /////////////////////////////////////////////////////////////////////////
	// CONSTRUCTORS:
	// /////////////////////////////////////////////////////////////////////////

	/**
	 * Instantiates a new remote client impl.
	 */
	public RemoteClientImpl() {
		super();
	}

	/**
	 * Instantiates a new remote client impl.
	 *
	 * @param aExecutorService the executor service
	 */
	public RemoteClientImpl( ExecutorService aExecutorService ) {
		super( aExecutorService );
	}

	// /////////////////////////////////////////////////////////////////////////
	// METHODS:
	// /////////////////////////////////////////////////////////////////////////

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void clear() {
		ControlFlowUtility.throwIllegalStateException( isDestroyed() );
		signOffAllProxies();
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public synchronized void close() throws IOException {
		if ( ENABLE_EXTENDED_DEBUG_LOGGING ) {
			LOGGER.info( "CLOSE called on <" + getClass().getName() + ">." );
		}
		close( null );
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public boolean isBusy() {
		ControlFlowUtility.throwIllegalStateException( isDestroyed() );
		return _instanceHandler.isBusy();
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public boolean hasProxy( Object proxy ) {
		return getProxyDescriptor( proxy ) != null;
	}

	/**
	 * Gets the proxy.
	 *
	 * @param  the generic type
	 * @param aType the type
	 * 
	 * @return the proxy
	 * 
	 * @throws AmbiguousProxyException the ambiguous proxy exception
	 * @throws NoSuchProxyException the no such proxy exception
	 */
	@SuppressWarnings("unchecked")
	@Override
	public  T getProxy( Class aType ) throws AmbiguousProxyException, NoSuchProxyException {
		Iterator