com.sun.enterprise.resource.recovery.JdbcRecoveryResourceHandler Maven / Gradle / Ivy
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package com.sun.enterprise.resource.recovery;
import com.sun.enterprise.config.serverbeans.*;
import com.sun.enterprise.deployment.ResourcePrincipal;
import com.sun.enterprise.transaction.api.XAResourceWrapper;
import com.sun.enterprise.transaction.spi.RecoveryResourceHandler;
import com.sun.logging.LogDomains;
import com.sun.appserv.connectors.internal.api.ConnectorRuntime;
import org.jvnet.hk2.config.types.Property;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.resource.spi.ManagedConnectionFactory;
import javax.resource.spi.ManagedConnection;
import javax.resource.spi.security.PasswordCredential;
import javax.resource.ResourceException;
import javax.security.auth.Subject;
import javax.transaction.xa.XAResource;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.*;
import java.security.Principal;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.component.Habitat;
/**
* Recovery Handler for Jdbc Resources
*
* @author Jagadish Ramu
*/
@Service
public class JdbcRecoveryResourceHandler implements RecoveryResourceHandler {
@Inject
private TransactionService txService;
@Inject
private Resources resources;
@Inject
private Habitat connectorRuntimeHabitat;
private static Logger _logger = LogDomains.getLogger(JdbcRecoveryResourceHandler.class, LogDomains.RSR_LOGGER);
private void loadAllJdbcResources() {
try {
Collection jdbcResources = getJdbcResources();
InitialContext ic = new InitialContext();
for (Resource resource : jdbcResources) {
JdbcResource jdbcResource = (JdbcResource) resource;
if (isEnabled(jdbcResource)) {
try {
ic.lookup(jdbcResource.getJndiName());
} catch (Exception ex) {
_logger.log(Level.SEVERE, "error.loading.jdbc.resources.during.recovery",
jdbcResource.getJndiName());
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, ex.toString(), ex);
}
}
}
}
} catch (NamingException ne) {
_logger.log(Level.SEVERE, "error.loading.jdbc.resources.during.recovery", ne.getMessage());
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, ne.toString(), ne);
}
}
}
private Collection getJdbcResources() {
return resources.getResources(JdbcResource.class);
}
/**
* {@inheritDoc}
*/
public void loadXAResourcesAndItsConnections(List xaresList, List connList) {
Collection jdbcres = getJdbcResources();
if (jdbcres == null || jdbcres.size() == 0) {
return;
}
List jdbcPools = new ArrayList();
for (Resource resource : jdbcres) {
JdbcResource jdbcResource = (JdbcResource) resource;
if (isEnabled(jdbcResource)) {
JdbcConnectionPool pool = getJdbcConnectionPoolByName(jdbcResource.getPoolName());
if (pool != null &&
"javax.sql.XADataSource".equals(pool.getResType())) {
jdbcPools.add(pool);
}
if (_logger.isLoggable(Level.FINE)) {
_logger.fine("JdbcRecoveryResourceHandler:: loadXAResourcesAndItsConnections :: "
+ "adding : " + (jdbcResource.getPoolName()));
}
}
}
//TODO V3 done so as to initialize connectors-runtime before loading jdbc-resources. need a better way ?
ConnectorRuntime crt = connectorRuntimeHabitat.getComponent(ConnectorRuntime.class);
loadAllJdbcResources();
// Read from the transaction-service , if the replacement of
// Vendor XAResource class with our version required.
// If yes, put the mapping in the xaresourcewrappers properties.
Properties xaresourcewrappers = new Properties();
//TODO V3 wrapper classes available from ?
xaresourcewrappers.put(
"oracle.jdbc.xa.client.OracleXADataSource",
"com.sun.enterprise.transaction.jts.recovery.OracleXAResource");
List properties = txService.getProperty();
if (properties != null) {
for (Property property : properties) {
String name = property.getName();
String value = property.getValue();
if (name.equals("oracle-xa-recovery-workaround")) {
if ("false".equals(value)) {
xaresourcewrappers.remove(
"oracle.jdbc.xa.client.OracleXADataSource");
}
} else if (name.equals("sybase-xa-recovery-workaround")) {
if (value.equals("true")) {
xaresourcewrappers.put(
"com.sybase.jdbc2.jdbc.SybXADataSource",
"com.sun.enterprise.transaction.jts.recovery.SybaseXAResource");
}
}
}
}
for(JdbcConnectionPool jdbcConnectionPool : jdbcPools){
if (jdbcConnectionPool.getResType() == null
|| jdbcConnectionPool.getName() == null
|| !jdbcConnectionPool.getResType().equals(
"javax.sql.XADataSource")) {
continue;
}
String poolName = jdbcConnectionPool.getName();
try {
String[] dbUserPassword = getdbUserPasswordOfJdbcConnectionPool(jdbcConnectionPool);
String dbUser = dbUserPassword[0];
String dbPassword = dbUserPassword[1];
ManagedConnectionFactory fac =
crt.obtainManagedConnectionFactory(poolName);
Subject subject = new Subject();
PasswordCredential pc = new PasswordCredential(
dbUser, dbPassword.toCharArray());
pc.setManagedConnectionFactory(fac);
Principal prin = new ResourcePrincipal(dbUser, dbPassword);
subject.getPrincipals().add(prin);
subject.getPrivateCredentials().add(pc);
ManagedConnection mc = fac.createManagedConnection(subject, null);
connList.add(mc);
try {
XAResource xares = mc.getXAResource();
if (xares != null) {
// See if a wrapper class for the vendor XADataSource is
// specified if yes, replace the XAResouce class of database
// vendor with our own version
String clName =
jdbcConnectionPool.getDatasourceClassname();
String wrapperclass = (String) xaresourcewrappers.get(
clName);
if (wrapperclass != null) {
XAResourceWrapper xaresWrapper = null;
try {
//TODO V3 Class.forName ?
xaresWrapper = (XAResourceWrapper) Class.forName(wrapperclass).newInstance();
} catch (Exception ex) {
throw ex;
}
xaresWrapper.init(mc, subject);
xaresList.add(xaresWrapper);
} else {
xaresList.add(xares);
}
}
} catch (ResourceException ex) {
// ignored. Not at XA_TRANSACTION level
}
} catch (Exception ex) {
_logger.log(Level.WARNING, "datasource.xadatasource_error",
poolName);
_logger.log(Level.FINE, "datasource.xadatasource_error_excp", ex);
}
}
}
private JdbcConnectionPool getJdbcConnectionPoolByName(String poolName) {
JdbcConnectionPool result = null;
Collection jdbcPools = resources.getResources(JdbcConnectionPool.class);
for (JdbcConnectionPool jdbcPool : jdbcPools) {
if (jdbcPool.getName().equals(poolName)) {
result = jdbcPool;
break;
}
}
return result;
}
/**
* {@inheritDoc}
*/
public void closeConnections(List connList) {
for (Object obj : connList) {
try {
ManagedConnection con = (ManagedConnection)obj;
con.destroy();
} catch (Exception ex) {
_logger.log(Level.WARNING, "recovery.jdbc-resource.destroy-error", ex);
}
}
}
//TODO V3 can't this be generic or can't this be handled by ConnectorsUtil / ResourcesUtil
private boolean isEnabled(JdbcResource resource) {
return Boolean.valueOf(resource.getEnabled());
}
/**
* gets the user-name & password for the jdbc-connection-pool
* @param jdbcConnectionPool connection pool
* @return user, password
*/
public String[] getdbUserPasswordOfJdbcConnectionPool(
JdbcConnectionPool jdbcConnectionPool) {
String[] userPassword = new String[2];
userPassword[0] = null;
userPassword[1] = null;
List properties = jdbcConnectionPool.getProperty();
if (properties != null && properties.size() > 0) {
for (Property property : properties) {
String prop = property.getName().toUpperCase();
if ("USERNAME".equals(prop) || "USER".equals(prop)) {
userPassword[0] = property.getValue();
} else if ("PASSWORD".equals(prop)) {
userPassword[1] = property.getValue();
}
}
} else {
return userPassword;
}
return userPassword;
}
}
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