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package com.sun.messaging.bridge.service.jms;
import java.util.ArrayList;
import java.util.Properties;
import java.util.Iterator;
import java.util.ResourceBundle;
import java.util.concurrent.RejectedExecutionException;
import com.sun.messaging.jmq.io.Status;
import com.sun.messaging.bridge.service.Bridge;
import com.sun.messaging.bridge.service.BridgeContext;
import com.sun.messaging.bridge.service.BridgeException;
import com.sun.messaging.bridge.service.BridgeCmdSharedResources;
import com.sun.messaging.bridge.service.BridgeCmdSharedReplyData;
/**
*
* @author amyk
*
*/
public class BridgeImpl implements Bridge, AsyncStartListener {
private final String _type = Bridge.JMS_TYPE;
private String _name = null ;
private State _state = State.STOPPED;
private JMSBridge _jmsbridge = null;;
public BridgeImpl() {};
public synchronized void asyncStartCompleted() throws Exception {
if (_state == State.STARTING) {
_state = State.STARTED;
return;
}
throw new IllegalStateException(
"Received bridge async start completion notification on unexpected state "+
_state.toString(JMSBridge.getJMSBridgeResources()));
}
public synchronized void asyncStartFailed() throws Exception {
if (_state == State.STARTING) {
_state = State.STOPPED;
return;
}
throw new IllegalStateException(
"Received bridge async start failure notification on unexpected state "+
_state.toString(JMSBridge.getJMSBridgeResources()));
}
/**
* Start the bridge
*
* @param bc the bridge context
* @param args start parameters
*
* @return true if successfully started; false if started asynchronously
*
* @throws Exception if unable to start the bridge
*/
public synchronized boolean start(BridgeContext bc, String[] args) throws Exception {
String linkName = parseLinkName(args);
if (linkName != null) {
if (_state != State.STARTED) {
throw new IllegalStateException(
JMSBridge.getJMSBridgeResources().getKString(
JMSBridge.getJMSBridgeResources().X_LINKOP_ALLOWED_STATE,
State.STARTED.toString(JMSBridge.getJMSBridgeResources())));
}
return _jmsbridge.start(linkName, null);
}
if (_state == State.STARTED) {
return true;
}
if (_state == State.STARTING) {
return false;
}
State oldstate = _state;
_state = State.STARTING;
boolean inited = false;
try {
_jmsbridge = new JMSBridge();
_jmsbridge.init(bc, _name, parseResetArg(args));
inited = true;
try {
if (_jmsbridge.start(parseLinkName(args), this)) {
_state = State.STARTED;
return true;
} else {
return false;
}
} catch (RejectedExecutionException e) {
_state = oldstate;
throw e;
}
} catch (Exception e) {
try {
stop(bc, null);
} catch (Throwable t) {}
if (!inited) {
_jmsbridge = null;
throw e;
}
throw new BridgeException(e.getMessage(), e, Status.CREATED);
}
}
/**
* Pause the bridge
*
* @param bc the bridge context
* @param args pause parameters
*
* @throws Exception if unable to pause the bridge
*/
public synchronized void pause(BridgeContext bc, String[] args) throws Exception {
String linkName = parseLinkName(args);
if (linkName != null) {
if (_state != State.STARTED) {
throw new IllegalStateException(
JMSBridge.getJMSBridgeResources().getKString(
JMSBridge.getJMSBridgeResources().X_LINKOP_ALLOWED_STATE,
State.STARTED.toString(JMSBridge.getJMSBridgeResources())));
}
_jmsbridge.pause(linkName);
return;
}
if (_state == State.PAUSED) return;
if (_state != State.STARTED) {
throw new IllegalStateException(
JMSBridge.getJMSBridgeResources().getKString(
JMSBridge.getJMSBridgeResources().X_PAUSE_NOT_ALLOWED_STATE,
_state.toString(JMSBridge.getJMSBridgeResources())));
}
State oldstate = _state;
_state = State.PAUSING;
try {
_jmsbridge.pause(parseLinkName(args));
_state = State.PAUSED;
} catch (Exception e) {
if (e instanceof RejectedExecutionException) {
_state = oldstate;
throw e;
}
try {
_jmsbridge.stop(parseLinkName(args));
} catch (Throwable t) {};
throw e;
}
}
/**
* Resume the bridge
*
* @param bc the bridge context
* @param args resume parameters
*
* @throws Exception if unable to resume the bridge
*/
public synchronized void resume(BridgeContext bc, String[] args) throws Exception {
String linkName = parseLinkName(args);
if (linkName != null) {
if (_state != State.STARTED) {
throw new IllegalStateException(
JMSBridge.getJMSBridgeResources().getKString(
JMSBridge.getJMSBridgeResources().X_LINKOP_ALLOWED_STATE,
State.STARTED.toString(JMSBridge.getJMSBridgeResources())));
}
_jmsbridge.resume(linkName);
return;
}
if (_state == State.STARTED) return;
if (_state != State.PAUSED) {
throw new IllegalStateException(
JMSBridge.getJMSBridgeResources().getKString(
JMSBridge.getJMSBridgeResources().X_RESUME_NOT_ALLOWED_STATE,
_state.toString(JMSBridge.getJMSBridgeResources())));
}
State oldstate = _state;
_state = State.RESUMING;
try {
_jmsbridge.resume(parseLinkName(args));
} catch (Exception e) {
if (e instanceof RejectedExecutionException) {
_state = oldstate;
throw e;
}
try {
_jmsbridge.stop(parseLinkName(args));
} catch (Throwable t) {}
throw e;
}
_state = State.STARTED;
}
/**
* Stop the bridge
*
* @param bc the bridge context
* @param args stop parameters
*
* @throws Exception if unable to stop the bridge
*/
public synchronized void stop(BridgeContext bc, String[] args) throws Exception {
if (_jmsbridge == null) {
_state = State.STOPPED;
throw new IllegalStateException(
JMSBridge.getJMSBridgeResources().getKString(
JMSBridge.getJMSBridgeResources().X_BRIDGE_NOT_INITED, getName()));
}
String linkName = parseLinkName(args);
if (linkName != null) {
if (_state != State.STARTED) {
throw new IllegalStateException(
JMSBridge.getJMSBridgeResources().getKString(
JMSBridge.getJMSBridgeResources().X_LINKOP_ALLOWED_STATE,
State.STARTED.toString(JMSBridge.getJMSBridgeResources())));
}
_jmsbridge.stop(linkName);
return;
}
if (_state == State.STOPPED) return;
State oldstate = _state;
_state = State.STOPPING;
try {
_jmsbridge.stop(parseLinkName(args));
_state = State.STOPPED;
} catch (RejectedExecutionException e) {
_state = oldstate;
throw e;
}
}
/**
* List the bridge
*
* @param bc the bridge context
* @param args list parameters
* @param rb ResourceBundle to get String resources for data
*
* @throws Exception if unable to stop the bridge
*/
public ArrayList<BridgeCmdSharedReplyData> list(
BridgeContext bc,
String[] args,
ResourceBundle rb)
throws Exception {
JMSBridge jb = _jmsbridge;
if (jb == null) {
throw new IllegalStateException(
JMSBridge.getJMSBridgeResources().getKString(
JMSBridge.getJMSBridgeResources().X_BRIDGE_NOT_INITED, getName()));
}
ArrayList<BridgeCmdSharedReplyData> replys = new ArrayList<BridgeCmdSharedReplyData>();
BridgeCmdSharedReplyData reply = new BridgeCmdSharedReplyData(4, 3, "-");
String oneRow[] = new String [4];
oneRow[0] = rb.getString(BridgeCmdSharedResources.I_BGMGR_TITLE_BRIDGE_NAME);
oneRow[1] = rb.getString(BridgeCmdSharedResources.I_BGMGR_TITLE_BRIDGE_TYPE);
oneRow[2] = rb.getString(BridgeCmdSharedResources.I_BGMGR_TITLE_BRIDGE_STATE);
oneRow[3] = rb.getString(BridgeCmdSharedResources.I_BGMGR_TITLE_NUM_LINKS);
reply.addTitle(oneRow);
oneRow[0] = getName();
oneRow[1] = getType();
oneRow[2] = getState().toString(rb);
oneRow[3] = String.valueOf(jb.getNumLinks());
reply.add(oneRow);
replys.add(reply);
String linkName = parseLinkName(args);
boolean debugMode = parseDebugModeArg(args);
ArrayList<BridgeCmdSharedReplyData> rep = jb.list(linkName, rb, debugMode);
replys.addAll(rep);
return replys;
}
/**
*
* @return the type of the bridge
*/
public String getType() {
return _type;
}
/**
*
* @return true if multiple of this type of bridge can coexist
*/
public boolean isMultipliable() {
return true;
}
/**
* Set the bridge's name
*/
public void setName(String name) {
_name = name;
}
/**
*
* @return the bridge's name
*/
public String getName() {
return _name;
}
public String toString() {
return _name+"["+_state+"]";
}
/**
*
* @return a string representing the bridge's status (length <= 15, uppercase)
*/
public State getState() {
return _state;
}
/**
*
* @return an object of exported service corresponding to the className
*/
public Object getExportedService(String className, Properties props) throws Exception {
if (className == null) throw new IllegalArgumentException("null class name");
if (props == null) throw new IllegalArgumentException("null props");
if (className.equals("com.sun.messaging.bridge.service.JMSBridgeStore")) {
return JMSBridge.exportJMSBridgeStoreService(props);
}
throw new IllegalArgumentException("Unexpected class name "+className);
}
/**
* The passed args must ensure correct options
*/
private String parseLinkName(String[] args) {
if (args == null) return null;
for (int n = 0; n < args.length; n++) {
if (args[n].equals("-ln")) return args[++n];
}
return null;
}
/**
*/
private boolean parseResetArg(String[] args) {
if (args == null) return false;
for (int n = 0; n < args.length; n++) {
if (args[n].equals("-reset")) return true;
}
return false;
}
private boolean parseDebugModeArg(String[] args) {
if (args == null) return false;
for (int n = 0; n < args.length; n++) {
if (args[n].equals("-debug")) return true;
}
return false;
}
}