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package com.sun.enterprise.transaction.jts.recovery;
import java.io.Serializable;
import java.util.Map;
import java.util.Properties;
import java.util.logging.Logger;
import java.util.logging.Level;
import com.sun.jts.jta.TransactionServiceProperties;
import com.sun.jts.CosTransactions.Configuration;
import com.sun.enterprise.config.serverbeans.Server;
import com.sun.enterprise.config.serverbeans.Servers;
import com.sun.enterprise.transaction.api.ResourceRecoveryManager;
import com.sun.enterprise.transaction.jts.api.DelegatedTransactionRecoveryFence;
import org.glassfish.gms.bootstrap.GMSAdapter;
import org.glassfish.gms.bootstrap.GMSAdapterService;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.api.ServiceLocator;
import com.sun.enterprise.ee.cms.core.CallBack;
import com.sun.enterprise.ee.cms.core.DistributedStateCache;
import com.sun.enterprise.ee.cms.core.GroupManagementService;
import com.sun.enterprise.ee.cms.core.FailureRecoverySignal;
import com.sun.enterprise.ee.cms.core.Signal;
import com.sun.logging.LogDomains;
public class GMSCallBack implements CallBack {
private static final String component = "TRANSACTION-RECOVERY-SERVICE";
private static final String TXLOGLOCATION = "TX_LOG_DIR";
private static final String MEMBER_DETAILS = "MEMBERDETAILS";
// Use a class from com.sun.jts subpackage
static Logger _logger = LogDomains.getLogger(TransactionServiceProperties.class, LogDomains.TRANSACTION_LOGGER);
private Servers servers;
private ServiceLocator serviceLocator;
private int waitTime;
private DelegatedTransactionRecoveryFence fence;
private GroupManagementService gms;
private final long startTime;
private final static Object lock = new Object();
public GMSCallBack(int waitTime, ServiceLocator serviceLocator) {
GMSAdapterService gmsAdapterService = serviceLocator.getService(GMSAdapterService.class);
if (gmsAdapterService != null) {
GMSAdapter gmsAdapter = gmsAdapterService.getGMSAdapter();
if (gmsAdapter != null) {
gmsAdapter.registerFailureRecoveryListener(component, this);
this.serviceLocator = serviceLocator;
servers = serviceLocator.getService(Servers.class);
this.waitTime = waitTime;
Properties props = TransactionServiceProperties.getJTSProperties(serviceLocator, false);
if (!Configuration.isDBLoggingEnabled()) {
if (Configuration.getORB() == null) {
// IIOP listeners are not setup yet,
// Create recoveryfile file so that automatic recovery will find it even
// if no XA transaction is envolved.
fence = RecoveryLockFile.getDelegatedTransactionRecoveryFence(this);
}
gms = gmsAdapter.getModule();
// Set the member details when GMS service is ready to store it
String instanceName = props.getProperty(Configuration.INSTANCE_NAME);
String logdir = props.getProperty(Configuration.LOG_DIRECTORY);
try {
_logger.log(Level.INFO, "Storing GMS instance " + instanceName +
" data " + TXLOGLOCATION + " : " + logdir);
gms.updateMemberDetails(instanceName, TXLOGLOCATION, logdir);
} catch (Exception e) {
_logger.log(Level.WARNING, "jts.error_updating_gms", e);
}
}
}
}
startTime = System.currentTimeMillis();
}
@Override
public void processNotification(Signal signal) {
if (signal instanceof FailureRecoverySignal) {
long timestamp = System.currentTimeMillis();
if (_logger.isLoggable(Level.INFO)) {
_logger.log(Level.INFO, "[GMSCallBack] failure recovery signal: " + signal);
}
// Waiting for 1 minute (or the user set value) to ensure that indoubt xids are updated into
// the database, otherwise while doing the recovery an instance may not
// get all the correct indoubt xids.
try {
Thread.sleep(waitTime*1000L);
} catch(InterruptedException e) {
e.printStackTrace();
}
String instance = signal.getMemberToken();
String logdir = null;
if (Configuration.isDBLoggingEnabled()) {
logdir = instance; // this is how logdir will be used inside the db recovery
} else {
Map failedMemberDetails = signal.getMemberDetails();
if (failedMemberDetails != null) {
logdir = (String)failedMemberDetails.get(TXLOGLOCATION);
}
}
synchronized(lock) {
_logger.log(Level.INFO, "[GMSCallBack] Recovering for instance: " + instance +
" logdir: " + logdir);
doRecovery(logdir, instance, timestamp);
if (!Configuration.isDBLoggingEnabled()) {
// Find records of not finished delegated recovery and do delegated recovery on those instances.
while (logdir != null) {
logdir = finishDelegatedRecovery(logdir, timestamp);
}
}
_logger.log(Level.INFO, "[GMSCallBack] Finished recovery for instance: " + instance);
}
} else {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "[GMSCallBack] ignoring signal: " + signal);
}
}
}
/**
* Find records of not finished delegated recovery in the recovery lock file on
* this path, and do delegated recovery if such record exists
*/
String finishDelegatedRecovery(String logdir) {
return finishDelegatedRecovery(logdir, startTime);
}
/**
* Find records of not finished delegated recovery in the recovery lock file on
* this path and recorded before specified timestamp, and do delegated recovery if such record exists
*/
String finishDelegatedRecovery(String logdir, long timestamp) {
String delegatedLogDir = null;
String instance = fence.getInstanceRecoveredFor(logdir, timestamp);
if (_logger.isLoggable(Level.INFO)) {
_logger.log(Level.INFO, "[GMSCallBack] Instance " + instance + " need to finish delegated recovering");
}
if (instance != null) {
DistributedStateCache dsc=gms.getGroupHandle().getDistributedStateCache();
Map memberDetails = dsc.getFromCacheForPattern(MEMBER_DETAILS, instance );
delegatedLogDir = (String)memberDetails.get(TXLOGLOCATION);
if (_logger.isLoggable(Level.INFO)) {
_logger.log(Level.INFO, "[GMSCallBack] Tx log dir for instance " + instance + " is " + delegatedLogDir);
}
doRecovery(delegatedLogDir, instance, timestamp);
}
return delegatedLogDir;
}
private void doRecovery(String logdir, String instance, long timestamp) {
if (isInstanceRunning(instance)) {
return;
}
if (!Configuration.isDBLoggingEnabled()) {
if (logdir == null) {
// Could happen if instance fails BEFORE actually getting this info into distributed state cache.
// Could also be a gms distributed state cache bug.
_logger.log(Level.WARNING, "jts.error_getting_member_details", instance);
return;
}
if (fence.isFenceRaised(logdir, instance, timestamp)) {
if (_logger.isLoggable(Level.INFO)) {
_logger.log(Level.INFO, "Instance " + instance + " is already recovering");
}
return;
}
}
try {
if (!Configuration.isDBLoggingEnabled()) {
fence.raiseFence(logdir, instance);
}
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Transaction log directory for " + instance + " is " + logdir);
_logger.log(Level.FINE, "Starting transaction recovery of " + instance);
}
ResourceRecoveryManager recoveryManager = serviceLocator.getService(ResourceRecoveryManager.class);
recoveryManager.recoverIncompleteTx(true, logdir, instance, true);
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Transaction recovery of " + instance + " is completed");
}
} catch (Throwable e) {
_logger.log(Level.WARNING, "jts.recovery_error", e);
} finally {
if (!Configuration.isDBLoggingEnabled()) {
fence.lowerFence(logdir, instance);
}
}
}
private boolean isInstanceRunning(String instance) {
boolean rs = false;
for(Server server : servers.getServer()) {
if(instance.equals(server.getName())) {
rs = server.isRunning();
break;
}
}
return rs;
}
}
