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/*
* Copyright (c) 2001-2007 Sun Micro//Systems, Inc. All rights reserved.
*
* The Sun Project JXTA(TM) Software License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by Sun Microsystems, Inc. for JXTA(TM) technology."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
* not be used to endorse or promote products derived from this software
* without prior written permission. For written permission, please contact
* Project JXTA at http://www.jxta.org.
*
* 5. Products derived from this software may not be called "JXTA", nor may
* "JXTA" appear in their name, without prior written permission of Sun.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SUN
* MICROSYSTEMS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* JXTA is a registered trademark of Sun Microsystems, Inc. in the United
* States and other countries.
*
* Please see the license information page at :
* for instructions on use of
* the license in source files.
*
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of Project JXTA. For more information on Project JXTA, please see
* http://www.jxta.org.
*
* This license is based on the BSD license adopted by the Apache Foundation.
*/
package net.jxta.impl.rendezvous.rendezvousMeter;
import net.jxta.impl.meter.*;
import net.jxta.rendezvous.*;
import net.jxta.util.documentSerializable.*;
import net.jxta.document.*;
import net.jxta.peer.*;
import net.jxta.endpoint.*;
import net.jxta.util.*;
import net.jxta.exception.*;
import java.util.*;
/**
* The rendezvous's metric for a client peer interacting with a it
**/
public class ClientConnectionMetric implements DocumentSerializable {
public static final String CONNECTED = "connected";
public static final String DISCONNECTED = "disconnected";
public static final String REFUSED = "refused";
private PeerID peerID;
private String state = null;
private long transitionTime;
private long lastLeaseRenewalTime;
private long lease;
private int numConnects;
private int numLeaseRenewals;
private int numDisconnects;
private int numConnectionsRefused;
private int numErrorsAddingClient;
private int numUnableToRespondToConnectRequest;
private long totalTimeConnected;
public ClientConnectionMetric() {}
public ClientConnectionMetric(PeerID peerID) {
this.peerID = peerID;
this.state = DISCONNECTED;
}
public ClientConnectionMetric(ClientConnectionMetric prototype) {
this.peerID = prototype.peerID;
this.state = prototype.state;
this.transitionTime = prototype.transitionTime;
this.lastLeaseRenewalTime = prototype.lastLeaseRenewalTime;
this.lease = prototype.lease;
}
/** Peer ID of this Client Connection **/
public PeerID getPeerID() {
return peerID;
}
/**
* State of Client Connection
* @return ClientConnectionMetric.CONNECTED, ClientConnectionMetric.DISCONNECTED or ClientConnectionMetric.REFUSED
**/
public String getState() {
return state;
}
/** Get the time that it entered the current state
* @return transition time in ms since January 1, 1970, 00:00:00 GMT
**/
public long getTransitionTime() {
return transitionTime;
}
/** Is this client connected **/
public boolean isConnected() {
return (state != null) && state.equals(CONNECTED);
}
/** Get time Connected
* @return time or 0 if not connected
**/
public long getTimeConnectionEstablished() {
return isConnected() ? transitionTime : 0;
}
/** Get time Connected
* @return time or 0 if not disconnected
**/
public long getDisconnectTime() {
return isDisconnected() ? transitionTime : 0;
}
/** Is this client disconnected **/
public boolean isDisconnected() {
return (state != null) && (state.equals(DISCONNECTED) || state.equals(REFUSED));
}
/** Get Lease time granted for last lease Renewal Request.
* @see #getLastLeaseRenewalTime()
**/
public long getLease() {
return lease;
}
/** Get Last Received Lease Renewal Time
* @see #getLease()
**/
public long getLastLeaseRenewalTime() {
return lastLeaseRenewalTime;
}
/** Get number of granted connect messages received from this peer **/
public int getNumConnects() {
return numConnects;
}
/** Get number of granted lease renewal messages received from this peer **/
public int getNumLeaseRenewals() {
return numLeaseRenewals;
}
/** Get number of disconnect messages received from this peer **/
public int getNumDisconnects() {
return numDisconnects;
}
/** Get number of refused connect/lease-renewal messages received from this peer **/
public int getNumConnectionsRefused() {
return numConnectionsRefused;
}
/** Get number of errors when attempting to add this peer as a client **/
public int getNumErrorsAddingClient() {
return numErrorsAddingClient;
}
/** Get number of errors when attempting to respond to this peer's request**/
public int getNumUnableToRespondToConnectRequest() {
return numUnableToRespondToConnectRequest;
}
/** Get the total time this peer has been connected.
*
* Note: This does not include the current time connected (if it is currently connected)
* @see #getTotalTimeConnected(long)
* @return time in ms (see note above)
**/
public long getTotalTimeConnected() {
return totalTimeConnected;
}
/** Get the total time this peer has been connected. If it is currently
* connected, then the total time is adjusted to include the time since the transition time
* to become connected until the provided time
* @param adjustmentTime The time of this metric will be adjusted to
* @see #getTotalTimeConnected()
* @return time in ms (see note above)
**/
public long getTotalTimeConnected(long adjustmentTime) {
long result = totalTimeConnected;
if (isConnected()) {
result += (adjustmentTime - this.transitionTime);
}
return result;
}
/** Get the duration of current connection relative to local clock (from transition time)
*
* Note: This assumes the clocks are in sync with the reporting peer
* @see #getTotalTimeConnected(long)
* @return time in ms (see note above) or 0 if not connected
**/
public long getTimeConnected() {
return getTimeConnected(System.currentTimeMillis());
}
/** Get the duration of current connection until the specified time
* @param adjustmentTime The time of this metric will be computed until
* @see #getTimeConnected()
* @return time in ms (see note above) or 0 if not connected
**/
public long getTimeConnected(long adjustmentTime) {
if (isConnected()) {
return (adjustmentTime - this.transitionTime);
} else {
return 0;
}
}
private void resetState(String state, long transitionTime) {
if (isConnected()) {
totalTimeConnected += (System.currentTimeMillis() - this.transitionTime);
}
this.state = state;
this.transitionTime = transitionTime;
}
void clientConnectionEstablished(long transitionTime, long lease) {
resetState(CONNECTED, transitionTime);
this.numConnects++;
this.lease = lease;
}
void clientLeaseRenewed(long lastLeaseRenewalTime, long lease) {
this.numLeaseRenewals++;
this.lease = lease;
this.lastLeaseRenewalTime = System.currentTimeMillis();
if (!isConnected()) {
resetState(CONNECTED, lastLeaseRenewalTime);
}
}
void errorAddingClient() {
this.numErrorsAddingClient++;
;
}
void clientConnectionDisconnected(boolean normal, long transitionTime) {
resetState(DISCONNECTED, transitionTime);
this.numDisconnects++;
this.lease = 0;
}
void unableToRespondToConnectRequest() {
this.numUnableToRespondToConnectRequest++;
}
void clientConnectionRefused(long transitionTime) {
if (!isDisconnected()) {
clientConnectionDisconnected(false, transitionTime);
}
this.transitionTime = transitionTime;
this.numConnectionsRefused++;
}
public void serializeTo(Element element) throws DocumentSerializationException {
if (peerID != null) {
DocumentSerializableUtilities.addString(element, "peerID", peerID.toString());
}
if (state != null) {
DocumentSerializableUtilities.addString(element, "state", state);
}
if (transitionTime != 0) {
DocumentSerializableUtilities.addLong(element, "transitionTime", transitionTime);
}
if (lastLeaseRenewalTime != 0) {
DocumentSerializableUtilities.addLong(element, "lastLeaseRenewalTime", lastLeaseRenewalTime);
}
if (lease != 0) {
DocumentSerializableUtilities.addLong(element, "lease", lease);
}
if (numConnects != 0) {
DocumentSerializableUtilities.addInt(element, "numConnects", numConnects);
}
if (numLeaseRenewals != 0) {
DocumentSerializableUtilities.addInt(element, "numLeaseRenewals", numLeaseRenewals);
}
if (numDisconnects != 0) {
DocumentSerializableUtilities.addInt(element, "numDisconnects", numDisconnects);
}
if (numConnectionsRefused != 0) {
DocumentSerializableUtilities.addInt(element, "numConnectionsRefused", numConnectionsRefused);
}
if (numErrorsAddingClient != 0) {
DocumentSerializableUtilities.addInt(element, "numErrorsAddingClient", numErrorsAddingClient);
}
if (numUnableToRespondToConnectRequest != 0) {
DocumentSerializableUtilities.addInt(element, "numUnableToRespondToConnectRequest", numUnableToRespondToConnectRequest);
}
if (totalTimeConnected != 0) {
DocumentSerializableUtilities.addLong(element, "totalTimeConnected", totalTimeConnected);
}
}
public void initializeFrom(Element element) throws DocumentSerializationException {
state = null;
for (Enumeration e = element.getChildren(); e.hasMoreElements();) {
Element childElement = (TextElement) e.nextElement();
String tagName = (String) childElement.getKey();
if (tagName.equals("peerID")) {
String peerIDText = DocumentSerializableUtilities.getString(childElement);
peerID = MetricUtilities.getPeerIdFromString(peerIDText);
} else if (tagName.equals("state")) {
state = DocumentSerializableUtilities.getString(childElement);
} else if (tagName.equals("transitionTime")) {
transitionTime = DocumentSerializableUtilities.getLong(childElement);
} else if (tagName.equals("lastLeaseRenewalTime")) {
lastLeaseRenewalTime = DocumentSerializableUtilities.getLong(childElement);
} else if (tagName.equals("lease")) {
lease = DocumentSerializableUtilities.getLong(childElement);
} else if (tagName.equals("numConnects")) {
numConnects = DocumentSerializableUtilities.getInt(childElement);
} else if (tagName.equals("numLeaseRenewals")) {
numLeaseRenewals = DocumentSerializableUtilities.getInt(childElement);
} else if (tagName.equals("numDisconnects")) {
numDisconnects = DocumentSerializableUtilities.getInt(childElement);
} else if (tagName.equals("numConnectionsRefused")) {
numConnectionsRefused = DocumentSerializableUtilities.getInt(childElement);
} else if (tagName.equals("numErrorsAddingClient")) {
numErrorsAddingClient = DocumentSerializableUtilities.getInt(childElement);
} else if (tagName.equals("numUnableToRespondToConnectRequest")) {
numUnableToRespondToConnectRequest = DocumentSerializableUtilities.getInt(childElement);
} else if (tagName.equals("totalTimeConnected")) {
totalTimeConnected = DocumentSerializableUtilities.getLong(childElement);
}
}
}
public void mergeMetrics(ClientConnectionMetric otherClientConnectionMetric) {
if (otherClientConnectionMetric == null) {
return;
}
if (otherClientConnectionMetric.state != null) {
state = otherClientConnectionMetric.state;
}
if (otherClientConnectionMetric.transitionTime != 0) {
transitionTime = otherClientConnectionMetric.transitionTime;
}
lease = otherClientConnectionMetric.lease;
numConnects += otherClientConnectionMetric.numConnects;
numLeaseRenewals += otherClientConnectionMetric.numLeaseRenewals;
numDisconnects += otherClientConnectionMetric.numDisconnects;
numConnectionsRefused += otherClientConnectionMetric.numConnectionsRefused;
numErrorsAddingClient += otherClientConnectionMetric.numErrorsAddingClient;
numUnableToRespondToConnectRequest += otherClientConnectionMetric.numUnableToRespondToConnectRequest;
totalTimeConnected += otherClientConnectionMetric.totalTimeConnected;
}
}
