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package com.sun.s1peqe.transaction.txglobal.ejb.beanB;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.ejb.SessionSynchronization;
import javax.ejb.*;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.Connection;
import javax.sql.DataSource;
import javax.naming.Context;
import javax.naming.InitialContext;
import java.util.Enumeration;
import java.rmi.RemoteException;
public class TxBeanB implements SessionBean, SessionSynchronization {
private String user = null;
private String dbURL1 = null;
private String dbURL2 = null;
private String password = null;
private SessionContext ctx = null;
private int commitStatus = 2; // 0 - commit, 1 - rollback, 2 - don't know
// ------------------------------------------------------------------------
// Container Required Methods
// ------------------------------------------------------------------------
public void setSessionContext(SessionContext sc) {
System.out.println("setSessionContext in BeanB");
try {
ctx = sc;
Context ic = new InitialContext();
user = (String) ic.lookup("java:comp/env/user");
password = (String) ic.lookup("java:comp/env/password");
dbURL1 = (String) ic.lookup("java:comp/env/dbURL1");
dbURL2 = (String) ic.lookup("java:comp/env/dbURL2");
} catch (Exception ex) {
System.out.println("Exception in setSessionContext: " +
ex.getMessage());
ex.printStackTrace();
}
}
public void ejbCreate() {
System.out.println("ejbCreate in BeanB");
}
public void ejbDestroy() {
System.out.println("ejbDestroy in BeanB");
}
public void ejbActivate() {
System.out.println("ejbActivate in BeanB");
}
public void ejbPassivate() {
System.out.println("ejbPassivate in BeanB");
}
public void ejbRemove() {
System.out.println("ejbRemove in BeanB");
}
// ------------------------------------------------------------------------
// Business Logic Methods
// ------------------------------------------------------------------------
public void test1() throws RemoteException {
Connection con1 = null;
Connection con2 = null;
Statement stmt1 = null;
Statement stmt2 = null;
ResultSet rs1 = null;
ResultSet rs2 = null;
System.out.println("test1 in BeanB");
try {
con1 = getConnection(dbURL1);
stmt1 = con1.createStatement();
rs1 = stmt1.executeQuery("SELECT * FROM usecase3_table");
System.out.println("Queried DB1 Successfully...");
con2 = getConnection(dbURL2);
stmt2 = con2.createStatement();
rs2 = stmt2.executeQuery("SELECT * FROM usecase3_table");
System.out.println("Queried DB2 Successfully...");
} catch (Exception ex) {
System.out.println("Exception in test1: " + ex.toString());
ex.printStackTrace();
} finally {
try {
if (rs1 != null)
rs1.close();
if (stmt1 != null)
stmt1.close();
if (con1 != null)
con1.close();
if (rs2 != null)
rs2.close();
if (stmt2 != null)
stmt2.close();
if (con2 != null)
con2.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
public void test2() throws RemoteException {
Connection con1 = null;
Connection con2 = null;
Statement stmt1 = null;
Statement stmt2 = null;
ResultSet rs1 = null;
ResultSet rs2 = null;
System.out.println("test2 in BeanB");
try {
con1 = getConnection(dbURL1);
stmt1 = con1.createStatement();
rs1 = stmt1.executeQuery("SELECT * FROM usecase3_table");
System.out.println("Queried DB1 Successfully...");
con2 = getConnection(dbURL2);
stmt2 = con2.createStatement();
rs2 = stmt2.executeQuery("SELECT * FROM usecase3_table");
System.out.println("Queried DB2 Successfully...");
// throw new EJBException("Throwing an EJB exception to force rollback ");
ctx.setRollbackOnly();
} catch (Exception ex) {
System.out.println("Exception in test2: " + ex.toString());
ex.printStackTrace();
} finally {
try {
if (rs1 != null)
rs1.close();
if (stmt1 != null)
stmt1.close();
if (con1 != null)
con1.close();
if (rs2 != null)
rs2.close();
if (stmt2 != null)
stmt2.close();
if (con2 != null)
con2.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
public int getCommitStatus() {
return commitStatus;
}
public void beforeCompletion() {
System.out.println("in beforeCompletion");
}
public void afterBegin() {
System.out.println("in afterBegin");
}
public void afterCompletion(boolean committed) {
System.out.println("in afterCompletion. committed = " + committed);
if (committed)
commitStatus = 0;
else
commitStatus = 1;
}
private Connection getConnection(String dbURL) {
Connection con = null;
System.out.println("getConnection in BeanB");
try{
Context context = new InitialContext();
DataSource ds = (DataSource) context.lookup(dbURL);
// con = ds.getConnection(user, password);
con = ds.getConnection();
System.out.println("Got DB Connection Successfully...");
} catch (Exception ex) {
System.out.println("Exception in getConnection: " + ex.toString());
ex.printStackTrace();
}
return con;
}
}