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package com.sun.enterprise.ee.admin.mbeans;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.enterprise.admin.event.AdminEventResult;
import com.sun.enterprise.admin.event.AdminEvent;
import com.sun.enterprise.admin.event.AdminEventMulticaster;
import com.sun.enterprise.admin.event.tx.TransactionsRecoveryEvent;
import com.sun.enterprise.admin.common.Status;
import com.sun.enterprise.server.ApplicationServer;
import com.sun.enterprise.config.serverbeans.Server;
import com.sun.enterprise.config.serverbeans.ServerHelper;
import com.sun.enterprise.ee.admin.proxy.InstanceProxy;
import com.sun.enterprise.ee.admin.mbeanapi.ServerRuntimeMBean;
import com.sun.enterprise.admin.config.MBeanConfigException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.logging.Level;
/**
* object name for this mbean: <domainName>:type=transactions-recovery,category=config
* TransactionsRecoveryMBean sends request to transactions recovery
*
* @author alexkrav
*
*/
public class EETransactionsRecoveryMBean extends EEBaseConfigMBean
{
public EETransactionsRecoveryMBean()
{
super();
}
///////////////////////////////////////////////////////////////////////////
/**
* Recovers transaction for given server instance
*
* 1) if the recovery_server_name (the server instance to be recovered) is running, and
* destination is null ot it equals recovery_server_name;
* 2) if the recovery_server_name is running and the different --destination is specified,
* then its an error.
* 3) if the recover_server_name is running and the --txlogdir is specified, then error
* 4) if the recovery_server_name is not running, and the destination_server_name
* (instance which will recover the transactions for recovery_server) is not running
* (or if it doesnt exist), then its an error
* 5) if the recovery_server_name is not running, and the --txlogdir is null or
* if it contains a path which cannot be resolved, then its an error.
* 6) If recovery_server_name is not running and destination is not specified
* then it's an error.
*
* @param serverToRecover - name of the server instance to be recovered
* @param destinationServer - server name to run the recovery process
* @param transactionLogDir - path to transaction log files
*
* @throws MBeanConfigException
*
*/
public void recoverTransactions(String serverToRecover, String destinationServer,
String transactionLogDir) throws MBeanConfigException
{
fine("TrasactionsRecoverytMBean.recoveryTransactions for server: "+serverToRecover+
" destinationServer"+destinationServer+" transactionLogDir"+transactionLogDir);
if(serverToRecover==null)
throw new MBeanConfigException(_strMgr.getString("tx.noServerToRecover"));
if(!isServer(serverToRecover))
throw new MBeanConfigException(_strMgr.getString("tx.ServerBeRecoveredIsNotKnown", serverToRecover));
if(isServerRunning(serverToRecover))
{
if(destinationServer!=null && !serverToRecover.equals(destinationServer))
//server running + destination not null & not equal
throw new MBeanConfigException(_strMgr.getString("tx.runningServerBeRecoveredFromAnotherServer", serverToRecover, destinationServer));
if(transactionLogDir!=null)
//server running + logDir notnot
throw new MBeanConfigException(_strMgr.getString("tx.logDirShouldNotBeSpecifiedForSelfRecovering", serverToRecover));
}
else if(destinationServer==null)
{
// server not running + no destination
throw new MBeanConfigException(_strMgr.getString("tx.noDestinationServer", serverToRecover));
}
else if(!isServerRunning(destinationServer))
{
// server not running + destination not running
throw new MBeanConfigException(_strMgr.getString("tx.destinationServerIsNotAlive", serverToRecover));
}
else if(transactionLogDir==null)
{
// server not running + destination not running
throw new MBeanConfigException(_strMgr.getString("tx.logDirNotSpecified", serverToRecover));
}
if(destinationServer!=null && !isServer(destinationServer))
throw new MBeanConfigException(_strMgr.getString("tx.DestinationServerIsNotKnown", destinationServer));
//here we are only if parameters consistent
if(destinationServer==null)
destinationServer = serverToRecover;
fine("TrasactionsRecoverytMBean.recoveryTransactions: Sending Notification to server" + destinationServer);
sendTransactionsRecoveryEvent(destinationServer, serverToRecover, transactionLogDir);
}
///////////////////////////////////////////////////////////////////////////
private boolean isServer(String target) {
try {
return ServerHelper.isAServer(getConfigContext(), target);
} catch(Exception e) {
}
return false;
}
/**
* This method will call a utility method instead of coding the logic here. TBD
*/
private boolean isServerRunning(String server)
{
try {
ServerRuntimeMBean serverMBean = InstanceProxy.getInstanceProxy(server);
Status status = serverMBean.getRuntimeStatus().getStatus();
if (status.getStatusCode() == Status.kInstanceRunningCode) {
return true;
}
} catch(Exception e) {
//return false; //FIXME: what else to do??
}
return false;
}
private void sendTransactionsRecoveryEvent(String destinationServer, String serverToRecover,
String transactionLogDir) throws MBeanConfigException
{
AdminEvent event = new TransactionsRecoveryEvent(getServerName(),
serverToRecover,
transactionLogDir);
event.setTargetDestination(destinationServer);
AdminEventResult res = forwardEvent(event);
if(!AdminEventResult.SUCCESS.equals(res.getResultCode()))
{
Throwable exc = res.getFirstThrowable();
if(exc!=null) {
throw new MBeanConfigException(_strMgr.getString("tx.exceptionInTargetServer",
exc.getMessage()));
}
throw new MBeanConfigException(_strMgr.getString("tx.notSuccessInSendReturn",
res.getResultCode()));
}
}
private AdminEventResult forwardEvent(AdminEvent e) {
AdminEventResult result = null;
result = AdminEventMulticaster.multicastEvent(e);
return result;
}
private void fine(String s) {
_sLogger.log(Level.FINE, s);
}
private String getServerName()
{
return ApplicationServer.getServerContext().getInstanceName();
}
///////////////////////////////////////////////////////////////////////////
private static final StringManager _strMgr =
StringManager.getManager(EJBTimerManagementMBean.class);
///////////////////////////////////////////////////////////////////////////
}