CorbaOutboundConnectionCacheImpl.java

/*
 * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.corba.se.impl.transport;

import java.util.Collection;
import java.util.Hashtable;
import java.util.Iterator;

import com.sun.corba.se.pept.broker.Broker;
import com.sun.corba.se.pept.transport.ContactInfo;
import com.sun.corba.se.pept.transport.Connection;
import com.sun.corba.se.pept.transport.OutboundConnectionCache;

import com.sun.corba.se.spi.monitoring.LongMonitoredAttributeBase;
import com.sun.corba.se.spi.monitoring.MonitoringConstants;
import com.sun.corba.se.spi.monitoring.MonitoringFactories;
import com.sun.corba.se.spi.monitoring.MonitoredObject;
import com.sun.corba.se.spi.orb.ORB;
import com.sun.corba.se.spi.transport.CorbaConnectionCache;
import com.sun.corba.se.spi.transport.CorbaContactInfo;

import com.sun.corba.se.impl.orbutil.ORBUtility;

/**
 * @author Harold Carr
 */
public class CorbaOutboundConnectionCacheImpl
    extends
	CorbaConnectionCacheBase
    implements
	OutboundConnectionCache
{
    protected Hashtable connectionCache;

    public CorbaOutboundConnectionCacheImpl(ORB orb, ContactInfo contactInfo) 
    {
	super(orb, contactInfo.getConnectionCacheType(),
	      ((CorbaContactInfo)contactInfo).getMonitoringName());
	this.connectionCache = new Hashtable();
    }

    ////////////////////////////////////////////////////
    //
    // pept.transport.OutboundConnectionCache
    //
    
    public Connection get(ContactInfo contactInfo) 
    {
	if (orb.transportDebugFlag) {
	    dprint(".get: " + contactInfo + " " + contactInfo.hashCode());
	}
	synchronized (backingStore()) {
	    dprintStatistics();
	    return (Connection) connectionCache.get(contactInfo);
	}
    }
    
    public void put(ContactInfo contactInfo, Connection connection) 
    {
	if (orb.transportDebugFlag) {
	    dprint(".put: " + contactInfo + " " + contactInfo.hashCode() + " "
		   + connection);
	}
	synchronized (backingStore()) {
	    connectionCache.put(contactInfo, connection);
	    connection.setConnectionCache(this);
	    dprintStatistics();
	}
    }

    public void remove(ContactInfo contactInfo)
    {
	if (orb.transportDebugFlag) {
	    dprint(".remove: " + contactInfo + " " + contactInfo.hashCode());
	}
	synchronized (backingStore()) {
	    if (contactInfo != null) {
		connectionCache.remove(contactInfo);
	    }
	    dprintStatistics();
	}
    }

    ////////////////////////////////////////////////////
    //
    // Implementation
    //

    public Collection values()
    {
	return connectionCache.values();
    }

    protected Object backingStore()
    {
	return connectionCache;
    }

    protected void registerWithMonitoring()
    {
	// ORB
	MonitoredObject orbMO = 
	    orb.getMonitoringManager().getRootMonitoredObject();

	// CONNECTION
	MonitoredObject connectionMO = 
	    orbMO.getChild(MonitoringConstants.CONNECTION_MONITORING_ROOT);
	if (connectionMO == null) {
	    connectionMO = 
		MonitoringFactories.getMonitoredObjectFactory()
		    .createMonitoredObject(
		        MonitoringConstants.CONNECTION_MONITORING_ROOT,
			MonitoringConstants.CONNECTION_MONITORING_ROOT_DESCRIPTION);
	    orbMO.addChild(connectionMO);
	}

	// OUTBOUND CONNECTION
	MonitoredObject outboundConnectionMO = 
	    connectionMO.getChild(
                MonitoringConstants.OUTBOUND_CONNECTION_MONITORING_ROOT);
	if (outboundConnectionMO == null) {
	    outboundConnectionMO =
		MonitoringFactories.getMonitoredObjectFactory()
		    .createMonitoredObject(
		        MonitoringConstants.OUTBOUND_CONNECTION_MONITORING_ROOT,
			MonitoringConstants.OUTBOUND_CONNECTION_MONITORING_ROOT_DESCRIPTION);
	    connectionMO.addChild(outboundConnectionMO);
	}

	// NODE FOR THIS CACHE
	MonitoredObject thisMO = 
	    outboundConnectionMO.getChild(getMonitoringName());
	if (thisMO == null) {
	    thisMO =
		MonitoringFactories.getMonitoredObjectFactory()
		    .createMonitoredObject(
			getMonitoringName(),
			MonitoringConstants.CONNECTION_MONITORING_DESCRIPTION);
	    outboundConnectionMO.addChild(thisMO);
	}

	LongMonitoredAttributeBase attribute;

	// ATTRIBUTE
	attribute = new 
	    LongMonitoredAttributeBase(
                MonitoringConstants.CONNECTION_TOTAL_NUMBER_OF_CONNECTIONS, 
		MonitoringConstants.CONNECTION_TOTAL_NUMBER_OF_CONNECTIONS_DESCRIPTION)
	    {
		public Object getValue() {
		    return new Long(CorbaOutboundConnectionCacheImpl.this.numberOfConnections());
		}
	    };
	thisMO.addAttribute(attribute);

	// ATTRIBUTE
	attribute = new 
	    LongMonitoredAttributeBase(
                MonitoringConstants.CONNECTION_NUMBER_OF_IDLE_CONNECTIONS, 
		MonitoringConstants.CONNECTION_NUMBER_OF_IDLE_CONNECTIONS_DESCRIPTION)
	    {
		public Object getValue() {
		    return new Long(CorbaOutboundConnectionCacheImpl.this.numberOfIdleConnections());
		}
	    };
	thisMO.addAttribute(attribute);

	// ATTRIBUTE
	attribute = new 
	    LongMonitoredAttributeBase(
                MonitoringConstants.CONNECTION_NUMBER_OF_BUSY_CONNECTIONS, 
		MonitoringConstants.CONNECTION_NUMBER_OF_BUSY_CONNECTIONS_DESCRIPTION)
	    {
		public Object getValue() {
		    return new Long(CorbaOutboundConnectionCacheImpl.this.numberOfBusyConnections());
		}
	    };
	thisMO.addAttribute(attribute);
    }

    protected void dprint(String msg)
    {
	ORBUtility.dprint("CorbaOutboundConnectionCacheImpl", msg);
    }
}

// End of file.