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mq5.0-source.main.mq-broker.persist-jdbc.src.main.java.com.sun.messaging.jmq.jmsserver.persist.jdbc.MessageDAOImpl Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2000-2012 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
/*
* @(#)MessageDAOImpl.java 1.55 08/17/07
*/
package com.sun.messaging.jmq.jmsserver.persist.jdbc;
import com.sun.messaging.jmq.jmsserver.persist.api.Store;
import com.sun.messaging.jmq.jmsserver.persist.api.PartitionedStore;
import com.sun.messaging.jmq.jmsserver.persist.api.HABrokerInfo;
import com.sun.messaging.jmq.util.log.Logger;
import com.sun.messaging.jmq.jmsserver.util.*;
import com.sun.messaging.jmq.jmsserver.core.ConsumerUID;
import com.sun.messaging.jmq.jmsserver.core.DestinationUID;
import com.sun.messaging.jmq.jmsserver.core.Destination;
import com.sun.messaging.jmq.jmsserver.FaultInjection;
import com.sun.messaging.jmq.jmsserver.resources.*;
import com.sun.messaging.jmq.jmsserver.Globals;
import com.sun.messaging.jmq.jmsserver.cluster.api.BrokerState;
import com.sun.messaging.jmq.io.SysMessageID;
import com.sun.messaging.jmq.io.Packet;
import com.sun.messaging.jmq.util.DestMetricsCounters;
import com.sun.messaging.jmq.io.Status;
import java.util.*;
import java.sql.*;
import java.io.*;
/**
* This class implement a generic MessageDAO.
*/
class MessageDAOImpl extends BaseDAOImpl implements MessageDAO {
protected String tableName;
protected static int msgColumnType = -Integer.MAX_VALUE;
// SQLs
protected String insertSQL;
protected String updateDestinationSQL;
protected String deleteSQL;
protected String deleteByDstSQL;
protected String deleteByDstBySessionSQL;
protected String selectSQL;
protected String selectMsgsBySessionSQL;
protected String selectMsgsByBrokerSQL;
protected String selectMsgIDsAndDstIDsByBrokerSQL;
protected String selectForUpdateSQL;
protected String selectBrokerSQL;
protected String selectCountByDstBrokerSQL;
protected String selectCountByDstSessionSQL;
protected String selectCountByBrokerSQL;
protected String selectCountByConsumerAckedSQL;
protected String selectIDsByDstBrokerSQL;
protected String selectIDsByDstSessionSQL;
protected String selectMsgsByDstBrokerSQL;
protected String selectMsgsByDstSessionSQL;
protected String selectExistSQL;
protected String selectCanInsertSQL;
protected FaultInjection fi = null;
/**
* Constructor
* @throws com.sun.messaging.jmq.jmsserver.util.BrokerException
*/
MessageDAOImpl() throws BrokerException {
fi = FaultInjection.getInjection();
// Initialize all SQLs
DBManager dbMgr = DBManager.getDBManager();
tableName = dbMgr.getTableName( TABLE_NAME_PREFIX );
insertSQL = new StringBuffer(128)
.append( "INSERT INTO " ).append( tableName )
.append( " ( " )
.append( ID_COLUMN ).append( ", " )
.append( MESSAGE_SIZE_COLUMN ).append( ", " )
.append( STORE_SESSION_ID_COLUMN ).append( ", " )
.append( DESTINATION_ID_COLUMN ).append( ", " )
.append( TRANSACTION_ID_COLUMN ).append( ", " )
.append( CREATED_TS_COLUMN ).append( ", " )
.append( MESSAGE_COLUMN )
.append( ") VALUES ( ?, ?, ?, ?, ?, ?, ? )" )
.toString();
updateDestinationSQL = new StringBuffer(128)
.append( "UPDATE " ).append( tableName )
.append( " SET " )
.append( DESTINATION_ID_COLUMN ).append( " = ?, " )
.append( MESSAGE_SIZE_COLUMN ).append( " = ?, " )
.append( MESSAGE_COLUMN ).append( " = ?" )
.append( " WHERE " )
.append( ID_COLUMN ).append( " = ?" )
.toString();
deleteSQL = new StringBuffer(128)
.append( "DELETE FROM " ).append( tableName )
.append( " WHERE " )
.append( ID_COLUMN ).append( " = ?" )
.toString();
deleteByDstSQL = new StringBuffer(128)
.append( "DELETE FROM " ).append( tableName )
.append( " WHERE " )
.append( DESTINATION_ID_COLUMN ).append( " = ?" )
.append( " AND " )
.append( STORE_SESSION_ID_COLUMN )
.append( " IN (SELECT " ).append( StoreSessionDAO.ID_COLUMN )
.append( " FROM " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " WHERE " )
.append( StoreSessionDAO.BROKER_ID_COLUMN ).append( " = ?)" )
.toString();
deleteByDstBySessionSQL = new StringBuffer(128)
.append( "DELETE FROM " ).append( tableName )
.append( " WHERE " )
.append( DESTINATION_ID_COLUMN ).append( " = ?" )
.append( " AND " )
.append( STORE_SESSION_ID_COLUMN )
.append( " IN (SELECT " ).append( StoreSessionDAO.ID_COLUMN )
.append( " FROM " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " WHERE " )
.append( StoreSessionDAO.BROKER_ID_COLUMN ).append( " = ? " )
.append( " AND " ).append( StoreSessionDAO.ID_COLUMN ).append ( " = ?)")
.toString();
selectCountByBrokerSQL = new StringBuffer(128)
.append( "SELECT COUNT(*) FROM " )
.append( tableName ).append( " msgTbl, " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " sesTbl" )
.append( " WHERE sesTbl." )
.append( StoreSessionDAO.BROKER_ID_COLUMN ).append( " = ?" )
.append( " AND sesTbl." ).append( StoreSessionDAO.ID_COLUMN )
.append( " = msgTbl." ).append( STORE_SESSION_ID_COLUMN )
.toString();
// This query is a bit more complex because we want the SQL to count
// the # of msgs, calculate the total size, and also determine if the
// destination does exists
selectCountByDstBrokerSQL = new StringBuffer(128)
.append( "SELECT totalmsg, totalsize, " )
.append( DestinationDAO.ID_COLUMN )
.append( " FROM " )
.append( dbMgr.getTableName( DestinationDAO.TABLE_NAME_PREFIX ) )
.append( ", (SELECT COUNT(msgTbl." )
.append( ID_COLUMN ).append( ") AS totalmsg, SUM(" )
.append( MESSAGE_SIZE_COLUMN ).append( ") AS totalsize")
.append( " FROM " ).append( tableName ).append( " msgTbl, " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " sesTbl" )
.append( " WHERE sesTbl." )
.append( StoreSessionDAO.BROKER_ID_COLUMN ).append( " = ?" )
.append( " AND sesTbl." ).append( StoreSessionDAO.ID_COLUMN )
.append( " = msgTbl." ).append( STORE_SESSION_ID_COLUMN )
.append( " AND " )
.append( DESTINATION_ID_COLUMN ).append( " = ?) msgtable" )
.append( " WHERE " )
.append( DestinationDAO.ID_COLUMN ).append( " = ?" )
.toString();
selectCountByDstSessionSQL = new StringBuffer(128)
.append( "SELECT totalmsg, totalsize, " )
.append( DestinationDAO.ID_COLUMN )
.append( " FROM " )
.append( dbMgr.getTableName( DestinationDAO.TABLE_NAME_PREFIX ) )
.append( ", (SELECT COUNT(" )
.append( ID_COLUMN ).append( ") AS totalmsg, SUM(" )
.append( MESSAGE_SIZE_COLUMN ).append( ") AS totalsize")
.append( " FROM " ).append( tableName )
.append( " WHERE ").append( STORE_SESSION_ID_COLUMN ).append( "= ?" )
.append( " AND " )
.append( DESTINATION_ID_COLUMN ).append( " = ?) msgtable" )
.append( " WHERE " )
.append( DestinationDAO.ID_COLUMN ).append( " = ?" )
.toString();
selectCountByConsumerAckedSQL = new StringBuffer(128)
.append( "SELECT COUNT(*) AS total, SUM(CASE WHEN " )
.append( ConsumerStateDAO.STATE_COLUMN )
.append( " = " ).append( PartitionedStore.INTEREST_STATE_ACKNOWLEDGED )
.append( " THEN 1 ELSE 0 END) AS totalAcked" )
.append( " FROM " )
.append( dbMgr.getTableName( ConsumerStateDAO.TABLE_NAME_PREFIX ) )
.append( " WHERE " )
.append( ConsumerStateDAO.MESSAGE_ID_COLUMN ).append( " = ?" )
.toString();
selectSQL = new StringBuffer(128)
.append( "SELECT " )
.append( MESSAGE_COLUMN )
.append( " FROM " ).append( tableName )
.append( " WHERE " )
.append( ID_COLUMN ).append( " = ?" )
.toString();
selectMsgsBySessionSQL = new StringBuffer(128)
.append( "SELECT " )
.append( MESSAGE_COLUMN )
.append( " FROM " ).append( tableName )
.append( " WHERE " )
.append( STORE_SESSION_ID_COLUMN ).append( " = ?" )
.toString();
selectMsgsByBrokerSQL = new StringBuffer(128)
.append( "SELECT " )
.append( MESSAGE_COLUMN )
.append( " FROM " ).append( tableName ).append( " msgTbl, " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " sesTbl" )
.append( " WHERE sesTbl." )
.append( StoreSessionDAO.BROKER_ID_COLUMN ).append( " = ?" )
.append( " AND sesTbl." ).append( StoreSessionDAO.ID_COLUMN )
.append( " = msgTbl." ).append( STORE_SESSION_ID_COLUMN )
.toString();
selectMsgIDsAndDstIDsByBrokerSQL = new StringBuffer(128)
.append( "SELECT msgTbl." )
.append( ID_COLUMN ).append( ", msgTbl." )
.append( DESTINATION_ID_COLUMN )
.append( " FROM " ).append( tableName ).append( " msgTbl, " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " sesTbl" )
.append( " WHERE sesTbl." )
.append( StoreSessionDAO.BROKER_ID_COLUMN ).append( " = ?" )
.append( " AND sesTbl." ).append( StoreSessionDAO.ID_COLUMN )
.append( " = msgTbl." ).append( STORE_SESSION_ID_COLUMN )
.toString();
selectForUpdateSQL = new StringBuffer(128)
.append( selectSQL )
.append( " FOR UPDATE" )
.toString();
selectBrokerSQL = new StringBuffer(128)
.append( "SELECT " )
.append( StoreSessionDAO.BROKER_ID_COLUMN )
.append( " FROM " ).append( tableName ).append( " msgTbl, " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " sesTbl" )
.append( " WHERE msgTbl." )
.append( ID_COLUMN ).append( " = ?" )
.append( " AND msgTbl." ).append( STORE_SESSION_ID_COLUMN )
.append( " = sesTbl." ).append( StoreSessionDAO.ID_COLUMN )
.toString();
selectIDsByDstBrokerSQL = new StringBuffer(128)
.append( "SELECT msgTbl." )
.append( ID_COLUMN )
.append( " FROM " ).append( tableName ).append( " msgTbl, " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " sesTbl" )
.append( " WHERE sesTbl." )
.append( StoreSessionDAO.BROKER_ID_COLUMN ).append( " = ?" )
.append( " AND sesTbl." ).append( StoreSessionDAO.ID_COLUMN )
.append( " = msgTbl." ).append( STORE_SESSION_ID_COLUMN )
.append( " AND " )
.append( DESTINATION_ID_COLUMN ).append( " = ?" )
.toString();
selectIDsByDstSessionSQL = new StringBuffer(128)
.append( "SELECT " )
.append( ID_COLUMN )
.append( " FROM " ).append( tableName )
.append( " WHERE STORE_SESSION_ID_COLUMN = ?" )
.append( " AND " )
.append( DESTINATION_ID_COLUMN ).append( " = ?" )
.toString();
selectMsgsByDstBrokerSQL = new StringBuffer(128)
.append( "SELECT msgTbl." )
.append( MESSAGE_COLUMN )
.append( " FROM " ).append( tableName ).append( " msgTbl, " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " sesTbl" )
.append( " WHERE sesTbl." )
.append( StoreSessionDAO.BROKER_ID_COLUMN ).append( " = ?" )
.append( " AND sesTbl." ).append( StoreSessionDAO.ID_COLUMN )
.append( " = msgTbl." ).append( STORE_SESSION_ID_COLUMN )
.append( " AND " )
.append( DESTINATION_ID_COLUMN ).append( " = ?" )
.toString();
selectMsgsByDstSessionSQL = new StringBuffer(128)
.append( "SELECT " )
.append( MESSAGE_COLUMN )
.append( " FROM " ).append( tableName )
.append( " WHERE ").append( STORE_SESSION_ID_COLUMN ).append( "= ?" )
.append( " AND " )
.append( DESTINATION_ID_COLUMN ).append( " = ?" )
.toString();
selectExistSQL = new StringBuffer(128)
.append( "SELECT " )
.append( ID_COLUMN )
.append( " FROM " ).append( tableName )
.append( " WHERE " )
.append( ID_COLUMN ).append( " = ?" )
.toString();
// A single query that can tell us if the msg & destination exist and
// broker is being taken over by other broker
// If value of col1 is greater than 0, then the msg does exist.
// If value of col2 is greater than 0, then the dst does exist.
// If value of col3 is greater than 0, then broker is being taken over.
StringBuffer strBuff = new StringBuffer(256)
.append( "SELECT MAX(msgTS), MAX(dstTS), MAX(bkrState) FROM (" )
.append( "SELECT " ).append( CREATED_TS_COLUMN )
.append( " AS msgTS, 0 AS dstTS, 0 AS bkrState FROM " ).append( tableName )
.append( " WHERE " ).append( ID_COLUMN ).append( " = ?" )
.append( " UNION " )
.append( "SELECT 0 AS msgTS, " ).append( DestinationDAO.CREATED_TS_COLUMN )
.append( " AS dstTS, 0 AS bkrState FROM " )
.append( dbMgr.getTableName( DestinationDAO.TABLE_NAME_PREFIX ) )
.append( " WHERE " ).append( DestinationDAO.ID_COLUMN ).append( " = ?" );
if ( Globals.getHAEnabled() ) {
strBuff
.append( " UNION " )
.append( "SELECT 0 AS msgTS, 0 AS dstTS, " ).append( BrokerDAO.STATE_COLUMN )
.append( " AS bkrState FROM " )
.append( dbMgr.getTableName( BrokerDAO.TABLE_NAME_PREFIX ) )
.append( " WHERE " ).append( BrokerDAO.ID_COLUMN ).append( " = ? AND " )
.append( BrokerDAO.STATE_COLUMN ).append( " IN (" )
.append( BrokerState.I_FAILOVER_PENDING ).append( ", " )
.append( BrokerState.I_FAILOVER_STARTED ).append( ", " )
.append( BrokerState.I_FAILOVER_COMPLETE ).append( ", " )
.append( BrokerState.I_FAILOVER_FAILED ).append( ")" );
}
strBuff.append( ") tbl" );
selectCanInsertSQL = strBuff.toString();
}
/**
* Get the prefix name of the table.
* @return table name
*/
public final String getTableNamePrefix() {
return TABLE_NAME_PREFIX;
}
/**
* Get the name of the table.
* @return table name
*/
public String getTableName() {
return tableName;
}
/**
* Insert a new entry.
* @param conn database connection
* @param message the message to be persisted
* @param dstUID the destination
* @param conUIDs an array of interest ids whose states are to be
* stored with the message
* @param states an array of states
* @param storeSessionID the store session ID that owns the msg
* @param createdTime timestamp
* @param checkMsgExist check if message & destination exist in the store
* @exception BrokerException if a message with the same id exists
* in the store already
*/
public void insert( Connection conn, DestinationUID dstUID, Packet message,
ConsumerUID[] conUIDs, int[] states, long storeSessionID,
long createdTime, boolean checkMsgExist, boolean replaycheck )
throws BrokerException {
String dstID = null;
if ( dstUID != null ) {
dstID = dstUID.toString();
}
insert( conn, dstID, message, conUIDs, states, storeSessionID,
createdTime, checkMsgExist, replaycheck );
}
public void insert( Connection conn, String dstID, Packet message,
ConsumerUID[] conUIDs, int[] states, long storeSessionID,
long createdTime, boolean checkMsgExist, boolean replaycheck )
throws BrokerException {
SysMessageID sysMsgID = (SysMessageID)message.getSysMessageID();
String id = sysMsgID.getUniqueName();
int size = message.getPacketSize();
long txnID = message.getTransactionID();
if ( dstID == null ) {
dstID = DestinationUID.getUniqueString(
message.getDestination(), message.getIsQueue() );
}
boolean myConn = false;
PreparedStatement pstmt = null;
Exception myex = null;
try {
// Get a connection
DBManager dbMgr = DBManager.getDBManager();
if ( conn == null ) {
conn = dbMgr.getConnection( false );
myConn = true;
}
if ( checkMsgExist ) {
try {
canInsertMsg( conn, id, dstID, dbMgr.getBrokerID() );
} catch (BrokerException e) {
if (!(e instanceof StoreBeingTakenOverException) &&
e.getStatusCode() != Status.CONFLICT &&
e.getStatusCode() != Status.NOT_FOUND) {
e.setSQLRecoverable(true);
e.setSQLReplayCheck(replaycheck);
}
if (!(e instanceof StoreBeingTakenOverException) &&
e.getStatusCode() == Status.CONFLICT) {
if (replaycheck) {
if ( conUIDs != null ) {
HashMap map = null;
try {
map = dbMgr.getDAOFactory().getConsumerStateDAO().getStates( conn, sysMsgID );
} catch (BrokerException ee) {
e.setSQLRecoverable(true);
e.setSQLReplayCheck(true);
throw e;
}
List cids = Arrays.asList(conUIDs);
Iterator itr = map.entrySet().iterator();
Map.Entry pair = null;
ConsumerUID cid = null;
while (itr.hasNext()) {
pair = (Map.Entry)itr.next();
cid = (ConsumerUID)pair.getKey();
int st = ((Integer)pair.getValue()).intValue();
for (int i = 0; i < conUIDs.length; i++) {
if (conUIDs[i].equals(cid)) {
if (states[i] == st) {
cids.remove(conUIDs[i]);
}
}
}
}
if (cids.size() == 0) {
logger.log(Logger.INFO, BrokerResources.I_CANCEL_SQL_REPLAY, id+"["+dstID+"]"+cids);
return;
}
} else {
logger.log(Logger.INFO, BrokerResources.I_CANCEL_SQL_REPLAY, id+"["+dstID+"]");
return;
}
}
}
throw e;
}
}
try {
// Get the msg as bytes array
byte[] data = message.getBytes();
pstmt = conn.prepareStatement( insertSQL );
pstmt.setString( 1, id );
pstmt.setInt( 2, size );
pstmt.setLong( 3, storeSessionID );
pstmt.setString( 4, dstID );
Util.setLong( pstmt, 5, (( txnID == 0 ) ? -1 : txnID) );
pstmt.setLong( 6, createdTime );
Util.setBytes( pstmt, 7, data );
pstmt.executeUpdate();
// Store the consumer's states if any
if ( conUIDs != null ) {
dbMgr.getDAOFactory().getConsumerStateDAO().insert(
conn, dstID, sysMsgID, conUIDs, states, false, false );
}
// Commit all changes
if ( myConn ) {
conn.commit();
}
} catch ( Exception e ) {
myex = e;
boolean replayck = false;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
replayck = true;
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED, rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof IOException ) {
ex = DBManager.wrapIOException("[" + insertSQL + "]", (IOException)e);
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + insertSQL + "]", (SQLException)e);
} else {
ex = e;
}
BrokerException ee = new BrokerException(
br.getKString( BrokerResources.X_PERSIST_MESSAGE_FAILED,
id ), ex );
ee.setSQLRecoverable(true);
if (replayck) {
ee.setSQLReplayCheck(true);
}
throw ee;
}
} catch (BrokerException e) {
myex = e;
throw e;
} finally {
if ( myConn ) {
Util.close( null, pstmt, conn, myex );
} else {
Util.close( null, pstmt, null, myex );
}
}
}
/**
* Move a message to another destination.
* @param conn database connection
* @param message the message
* @param fromDst the destination
* @param toDst the destination to move to
* @param conUIDs an array of interest ids whose states are to be
* stored with the message
* @param states an array of states
* @throws IOException
* @throws BrokerException
*/
public void moveMessage( Connection conn, Packet message,
DestinationUID fromDst, DestinationUID toDst, ConsumerUID[] conUIDs,
int[] states ) throws IOException, BrokerException {
SysMessageID sysMsgID = (SysMessageID)message.getSysMessageID().clone();
String id = sysMsgID.getUniqueName();
int size = message.getPacketSize();
boolean myConn = false;
PreparedStatement pstmt = null;
Exception myex = null;
try {
// Get a connection
DBManager dbMgr = DBManager.getDBManager();
if ( conn == null ) {
conn = dbMgr.getConnection( false );
myConn = true;
}
// Get the msg as bytes array
byte[] data = message.getBytes();
pstmt = conn.prepareStatement( updateDestinationSQL );
pstmt.setString( 1, toDst.toString() );
pstmt.setInt( 2, size );
Util.setBytes( pstmt, 3, data );
pstmt.setString( 4, id );
if ( pstmt.executeUpdate() == 0 ) {
// We're assuming the entry does not exist
throw new BrokerException(
br.getKString( BrokerResources.E_MSG_NOT_FOUND_IN_STORE,
id, fromDst ), Status.NOT_FOUND );
}
/**
* Update consumer states:
* 1. remove the old states
* 2. re-insert the states
*/
ConsumerStateDAO conStateDAO = dbMgr.getDAOFactory().getConsumerStateDAO();
conStateDAO.deleteByMessageID( conn, sysMsgID );
if ( conUIDs != null || states != null ) {
conStateDAO.insert(
conn, toDst.toString(), sysMsgID, conUIDs, states, false, false );
}
// Commit all changes
if ( myConn ) {
conn.commit();
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED, rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + updateDestinationSQL + "]", (SQLException)e);
} else {
ex = e;
}
Object[] args = { id, fromDst, toDst };
throw new BrokerException(
br.getKString( BrokerResources.X_MOVE_MESSAGE_FAILED,
args ), ex );
} finally {
if ( myConn ) {
Util.close( null, pstmt, conn, myex );
} else {
Util.close( null, pstmt, null, myex );
}
}
}
/**
* Delete an existing entry.
* @param conn Database Connection
* @param dstUID the destination
* @param sysMsgID the SysMessageID
* @throws BrokerException
*/
public void delete( Connection conn, DestinationUID dstUID,
SysMessageID sysMsgID, boolean replaycheck ) throws BrokerException {
String id = sysMsgID.getUniqueName();
boolean myConn = false;
PreparedStatement pstmt = null;
Exception myex = null;
try {
// Get a connection
DBManager dbMgr = DBManager.getDBManager();
if ( conn == null ) {
conn = dbMgr.getConnection( false );
myConn = true; // Set to true since this is our connection
}
if (fi.FAULT_INJECTION) {
HashMap fips = new HashMap();
fips.put(FaultInjection.DST_NAME_PROP,
DestinationUID.getUniqueString(dstUID.getName(), dstUID.isQueue()));
fi.checkFaultAndExit(FaultInjection.FAULT_TXN_COMMIT_1_8, fips, 2, false);
}
// Now delete the message
boolean deleteFailed = false;
pstmt = conn.prepareStatement( deleteSQL );
pstmt.setString( 1, id );
if ( pstmt.executeUpdate() == 0 ) {
deleteFailed = true;
} else {
// For HA mode, make sure this broker still owns the store
if ( Globals.getHAEnabled() ) {
String brokerID = dbMgr.getBrokerID();
BrokerDAO dao = dbMgr.getDAOFactory().getBrokerDAO();
if ( dao.isBeingTakenOver( conn, brokerID ) ) {
BrokerException be = new StoreBeingTakenOverException(
br.getKString( BrokerResources.E_STORE_BEING_TAKEN_OVER ) );
try {
HABrokerInfo bkrInfo = dao.getBrokerInfo( conn, brokerID );
logger.log( Logger.ERROR, br.getKString(
BrokerResources.X_INTERNAL_EXCEPTION,
bkrInfo.toString() ), be );
} catch (Throwable t) { /* Ignore error */ }
throw be;
}
}
}
// Delete states
dbMgr.getDAOFactory().getConsumerStateDAO().deleteByMessageID( conn, sysMsgID );
if (deleteFailed && replaycheck) {
logger.log(Logger.INFO, BrokerResources.I_CANCEL_SQL_REPLAY, id+"["+dstUID+"]delete");
return;
}
if (deleteFailed) {
// We'll assume the msg does not exist
throw new BrokerException(
br.getKString( BrokerResources.E_MSG_NOT_FOUND_IN_STORE,
id, dstUID ), Status.NOT_FOUND );
}
// Check whether to commit or not
if ( myConn ) {
conn.commit();
}
} catch ( Exception e ) {
myex = e;
boolean replayck = false;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
replayck = true;
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED, rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
if (!(e instanceof StoreBeingTakenOverException) &&
((BrokerException)e).getStatusCode() != Status.NOT_FOUND) {
((BrokerException)e).setSQLRecoverable(true);
((BrokerException)e).setSQLReplayCheck(replayck);
}
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + deleteSQL + "]", (SQLException)e);
} else {
ex = e;
}
BrokerException be = new BrokerException(
br.getKString( BrokerResources.X_REMOVE_MESSAGE_FAILED,
id ), ex );
be.setSQLRecoverable(true);
be.setSQLReplayCheck(replayck);
throw be;
} finally {
if ( myConn ) {
Util.close( null, pstmt, conn, myex );
} else {
Util.close( null, pstmt, null, myex );
}
}
}
/**
* Delete all messages from a destination for the current broker.
* @param conn Database Connection
* @param dstUID the destination
* @param storeSession null if delete the destination from all store sessions
* @return the number of msgs deleted
* @throws BrokerException
*/
public int deleteByDestinationBySession( Connection conn,
DestinationUID dstUID, Long storeSession )
throws BrokerException {
int msgCount;
String dstID = dstUID.toString();
String sql = deleteByDstSQL;
boolean myConn = false;
PreparedStatement pstmt = null;
Exception myex = null;
try {
// Get a connection
DBManager dbMgr = DBManager.getDBManager();
if ( conn == null ) {
conn = dbMgr.getConnection( false );
myConn = true; // Set to true since this is our connection
}
dbMgr.getDAOFactory().getDestinationDAO().checkDestination( conn, dstID );
// First delete consumer states for the destination since
// Consumer State table is a child table, i.e. it has to join with
// the Message table to select message IDs for the destination that
// will be deleted.
dbMgr.getDAOFactory().getConsumerStateDAO().
deleteByDestinationBySession( conn, dstUID, storeSession );
// Now delete all msgs associated with the destination
if (storeSession != null) {
sql = deleteByDstBySessionSQL;
}
pstmt = conn.prepareStatement( sql );
pstmt.setString( 1, dstID );
pstmt.setString( 2, dbMgr.getBrokerID() );
if (storeSession != null) {
pstmt.setLong( 3, storeSession.longValue() );
}
msgCount = pstmt.executeUpdate();
// Check whether to commit or not
if ( myConn ) {
conn.commit();
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR,
BrokerResources.X_DB_ROLLBACK_FAILED+"["+sql+"]", rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + sql + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString( BrokerResources.X_REMOVE_MESSAGES_FOR_DST_FAILED,
dstID ), ex );
} finally {
if ( myConn ) {
Util.close( null, pstmt, conn, myex );
} else {
Util.close( null, pstmt, null, myex );
}
}
return msgCount;
}
/**
* Delete all entries.
* @param conn Database Connection
* @throws com.sun.messaging.jmq.jmsserver.util.BrokerException
*/
public void deleteAll( Connection conn )
throws BrokerException {
String whereClause = null;
if ( Globals.getHAEnabled() ) {
DBManager dbMgr = DBManager.getDBManager();
// Only delete messages that belong to the running broker,
// construct the where clause for the delete statement:
// DELETE FROM mqmsg41cmycluster
// WHERE EXISTS
// (SELECT id FROM mqses41cmycluster
// WHERE id = mqmsg41cmycluster.store_session_id AND
// broker_id = 'mybroker')
whereClause = new StringBuffer(128)
.append( "EXISTS (SELECT " )
.append( StoreSessionDAO.ID_COLUMN )
.append( " FROM " )
.append( dbMgr.getTableName( StoreSessionDAO.TABLE_NAME_PREFIX ) )
.append( " WHERE " )
.append( StoreSessionDAO.ID_COLUMN ).append( " = " )
.append( tableName ).append( "." ).append( STORE_SESSION_ID_COLUMN )
.append( " AND " )
.append( StoreSessionDAO.BROKER_ID_COLUMN ).append( " = '" )
.append( dbMgr.getBrokerID() ).append( "')" )
.toString();
}
deleteAll( conn, whereClause, null, 0 );
}
/**
* Get the broker ID that owns the specified message.
* @param conn database connection
* @param id the system message id of the message
* @return the broker ID
* @throws BrokerException
*/
public String getBroker( Connection conn, DestinationUID dstUID, String id )
throws BrokerException {
String brokerID = null;
boolean myConn = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
try {
// Get a connection
if ( conn == null ) {
conn = DBManager.getDBManager().getConnection( true );
myConn = true;
}
pstmt = conn.prepareStatement( selectBrokerSQL );
pstmt.setString( 1, id );
rs = pstmt.executeQuery();
if ( rs.next() ) {
brokerID = rs.getString( 1 );
} else {
throw new BrokerException(
br.getKString( BrokerResources.E_MSG_NOT_FOUND_IN_STORE,
id, dstUID ), Status.NOT_FOUND );
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED+"["+selectBrokerSQL+"]", rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + selectBrokerSQL + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString( BrokerResources.X_LOAD_MESSAGE_FAILED, id), ex);
} finally {
if ( myConn ) {
Util.close( rs, pstmt, conn, myex );
} else {
Util.close( rs, pstmt, null, myex );
}
}
return brokerID;
}
/**
* Get the message.
* @param conn database connection
* @param dstUID the destination
* @param sysMsgID the SysMessageID
* @return Packet the message
* @throws BrokerException if message does not exist in the store
*/
public Packet getMessage( Connection conn, DestinationUID dstUID,
SysMessageID sysMsgID ) throws BrokerException {
return getMessage( conn, dstUID, sysMsgID.toString() );
}
/**
* Get a Message.
* @param conn database connection
* @param dstUID the destination
* @param id the system message id of the message
* @return Packet the message
* @throws BrokerException
*/
public Packet getMessage( Connection conn, DestinationUID dstUID, String id )
throws BrokerException {
Packet msg = null;
boolean myConn = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
try {
// Get a connection
if ( conn == null ) {
conn = DBManager.getDBManager().getConnection( true );
myConn = true;
}
pstmt = conn.prepareStatement( selectSQL );
pstmt.setString( 1, id );
rs = pstmt.executeQuery();
msg = (Packet)loadData( rs, true );
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED+"["+selectSQL+"]", rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof IOException ) {
ex = DBManager.wrapIOException("[" + selectSQL + "]", (IOException)e);
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + selectSQL + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString( BrokerResources.X_LOAD_MESSAGE_FAILED, id), ex);
} finally {
if ( myConn ) {
Util.close( rs, pstmt, conn, myex );
} else {
Util.close( rs, pstmt, null, myex );
}
}
if ( msg == null ) {
throw new BrokerException(
br.getKString( BrokerResources.E_MSG_NOT_FOUND_IN_STORE,
id, dstUID ), Status.NOT_FOUND );
}
return msg;
}
/**
* Get all message IDs for a broker.
* @param conn database connection
* @param brokerID the broker ID
* @return a List of all messages the specified broker owns
* @throws BrokerException
*/
public List getMessagesByBroker( Connection conn, String brokerID )
throws BrokerException {
List list = Collections.EMPTY_LIST;
boolean myConn = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
try {
// Get a connection
DBManager dbMgr = DBManager.getDBManager();
if ( conn == null ) {
conn = dbMgr.getConnection( true );
myConn = true;
}
// Retrieve all messages for the target broker
pstmt = conn.prepareStatement( selectMsgsByBrokerSQL );
pstmt.setString( 1, brokerID );
rs = pstmt.executeQuery();
list = (List)loadData( rs, false );
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED, rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof IOException ) {
ex = DBManager.wrapIOException("[" + selectMsgsByBrokerSQL + "]", (IOException)e);
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + selectMsgsByBrokerSQL + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString( BrokerResources.E_LOAD_MSG_FOR_BROKER_FAILED,
brokerID ), ex );
} finally {
if ( myConn ) {
Util.close( rs, pstmt, conn, myex );
} else {
Util.close( rs, pstmt, null, myex );
}
}
return list;
}
/**
* Get all message IDs and corresponding destination IDs for a broker.
* @param conn database connection
* @param brokerID the broker ID
* @return a Map of all messages corresponding destinations the specified broker owns
* @throws BrokerException
*/
public Map getMsgIDsAndDstIDsByBroker( Connection conn, String brokerID )
throws BrokerException {
Map map = new HashMap();
boolean myConn = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
try {
// Get a connection
DBManager dbMgr = DBManager.getDBManager();
if ( conn == null ) {
conn = dbMgr.getConnection( true );
myConn = true;
}
if ( brokerID == null ) {
brokerID = dbMgr.getBrokerID();
}
// Retrieve all message IDs and corresponding for the target broker
pstmt = conn.prepareStatement( selectMsgIDsAndDstIDsByBrokerSQL );
pstmt.setString( 1, brokerID );
rs = pstmt.executeQuery();
while ( rs.next() ) {
map.put( rs.getString( 1 ), rs.getString( 2 ) );
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED, rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof IOException ) {
ex = DBManager.wrapIOException("[" + selectMsgIDsAndDstIDsByBrokerSQL + "]", (IOException)e);
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + selectMsgIDsAndDstIDsByBrokerSQL + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString( BrokerResources.E_LOAD_MSG_FOR_BROKER_FAILED,
brokerID ), ex );
} finally {
if ( myConn ) {
Util.close( rs, pstmt, conn, myex );
} else {
Util.close( rs, pstmt, null, myex );
}
}
return map;
}
/**
* Get all message IDs for a destination and current/local broker.
* @param conn database connection
* @param dst the destination
* @param brokerID the broker ID
* @param storeSession can be null
* @return a List of all persisted destination names.
* @throws BrokerException
*/
public List getIDsByDst( Connection conn, Destination dst, String brokerID, Long storeSession )
throws BrokerException {
ArrayList list = new ArrayList();
String dstID = dst.getUniqueName();
boolean myConn = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
String sql = selectIDsByDstBrokerSQL;
try {
// Get a connection
DBManager dbMgr = DBManager.getDBManager();
if ( conn == null ) {
conn = dbMgr.getConnection( true );
myConn = true;
}
if (storeSession != null) {
StoreSessionDAOImpl.checkStoreSessionOwner( conn, storeSession, brokerID );
sql = selectIDsByDstSessionSQL;
}
pstmt = conn.prepareStatement( sql );
if (storeSession != null) {
pstmt.setLong( 1, storeSession.longValue() );
} else {
pstmt.setString( 1, brokerID );
}
pstmt.setString( 2, dstID );
rs = pstmt.executeQuery();
while ( rs.next() ) {
String msgID = rs.getString( 1 );
list.add( msgID );
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED+"["+sql+"]", rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + sql + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString( BrokerResources.X_LOAD_MESSAGES_FOR_DST_FAILED ),
dstID, ex );
} finally {
if ( myConn ) {
Util.close( rs, pstmt, conn, myex );
} else {
Util.close( rs, pstmt, null, myex );
}
}
return list;
}
/**
* Return an enumeration of all persisted messages for the given destination.
* Use the Enumeration methods on the returned object to fetch and load
* each message sequentially.
*
* This method is to be used at broker startup to load persisted
* messages on demand.
*
* @param dst the destination
* @param brokerID the broker ID
* @return an enumeration of all persisted messages, an empty
* enumeration will be returned if no messages exist for the
* destionation
* @exception BrokerException if an error occurs while getting the data
*/
public Enumeration messageEnumeration( Destination dst, String brokerID, Long storeSession )
throws BrokerException {
Connection conn = null;
Exception myex = null;
try {
DBManager dbMgr = DBManager.getDBManager();
conn = dbMgr.getConnection( true );
// Verify destination exists
dbMgr.getDAOFactory().getDestinationDAO().checkDestination(
conn, dst.getUniqueName() );
Iterator msgIDItr = getIDsByDst( conn, dst, brokerID, storeSession ).iterator();
return new MsgEnumeration( dst.getDestinationUID(), this, msgIDItr );
} catch (BrokerException e) {
myex = e;
throw e;
} finally {
Util.close( null, null, conn, myex );
}
}
/*
* This method is to be used at broker startup to load persisted
* messages on demand.
*
* This method returns a message enumeration that uses ResultSet cursor.
* Caller must call Store.closeEnumeration() after use
*
* @param dst the destination
* @param brokerID the broker ID
* @return an enumeration of all persisted messages, an empty
* enumeration will be returned if no messages exist for the
* destionation
* @exception BrokerException if an error occurs while getting the data
*/
public Enumeration messageEnumerationCursor( Destination dst, String brokerID, Long storeSession )
throws BrokerException {
String dstID = dst.getUniqueName();
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet rs = null;
String sql = selectMsgsByDstBrokerSQL;
try {
DBManager dbMgr = DBManager.getDBManager();
conn = dbMgr.getConnection( true );
// Verify destination exists
dbMgr.getDAOFactory().getDestinationDAO().checkDestination( conn, dstID );
if (storeSession != null) {
StoreSessionDAOImpl.checkStoreSessionOwner( conn, storeSession, brokerID );
sql = selectMsgsByDstSessionSQL;
}
pstmt = conn.prepareStatement( sql );
if (storeSession != null) {
pstmt.setLong( 1, storeSession.longValue() );
} else {
pstmt.setString( 1, brokerID );
}
pstmt.setString( 2, dstID );
rs = pstmt.executeQuery();
return new MessageEnumeration( rs, pstmt, conn, sql,
this, Globals.getStore() );
} catch ( Throwable e ) {
Throwable ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + sql + "]", (SQLException)e);
} else {
ex = e;
}
Util.close( rs, pstmt, conn, ex );
throw new BrokerException(
br.getKString( BrokerResources.X_LOAD_MESSAGES_FOR_DST_FAILED ),
dstID, ex );
}
}
/**
* Check if a a message has been acknowledged by all interests, i.e. consumers.
* @param conn database connection
* @param dstUID the destination
* @param sysMsgID sysMsgID the SysMessageID
* @return true if all interests have acknowledged the message;
* false if message has not been routed or acknowledge by all interests
* @throws BrokerException
*/
public boolean hasMessageBeenAcked( Connection conn, DestinationUID dstUID,
SysMessageID sysMsgID ) throws BrokerException {
int total = -1;
int totalAcked = -1;
String id = sysMsgID.getUniqueName();
boolean myConn = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
try {
// Get a connection
if ( conn == null ) {
conn = DBManager.getDBManager().getConnection( true );
myConn = true;
}
pstmt = conn.prepareStatement( selectCountByConsumerAckedSQL );
pstmt.setString( 1, id );
rs = pstmt.executeQuery();
if ( rs.next() ) {
total = rs.getInt( 1 );
totalAcked = rs.getInt( 2 );
} else {
throw new BrokerException(
br.getKString( BrokerResources.E_MSG_NOT_FOUND_IN_STORE,
id, dstUID ), Status.NOT_FOUND );
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED+"["+selectCountByConsumerAckedSQL+"]", rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
if (((BrokerException)e).getStatusCode() != Status.NOT_FOUND) {
((BrokerException)e).setSQLRecoverable(true);
}
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + selectCountByConsumerAckedSQL + "]", (SQLException)e);
} else {
ex = e;
}
BrokerException be = new BrokerException(
br.getKString( BrokerResources.X_LOAD_MESSAGE_FAILED,
id ), ex );
be.setSQLRecoverable(true);
throw be;
} finally {
if ( myConn ) {
Util.close( rs, pstmt, conn, myex );
} else {
Util.close( rs, pstmt, null, myex );
}
}
// Return true if all interests have acknowledged. To be safe,
// message is considered unrouted if interest list is empty (total = 0).
if ( total > 0 && total == totalAcked ) {
return true;
} else {
return false;
}
}
/**
* Check whether the specified message exists.
* @param conn database connection
* @param id the system message id of the message to be checked
* @return return true if the specified message exists
*/
public boolean hasMessage( Connection conn, String id ) throws BrokerException {
boolean found = false;
boolean myConn = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
try {
// Get a connection
if ( conn == null ) {
conn = DBManager.getDBManager().getConnection( true );
myConn = true;
}
pstmt = conn.prepareStatement( selectExistSQL );
pstmt.setString( 1, id );
rs = pstmt.executeQuery();
if ( rs.next() ) {
found = true;
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED+"["+selectExistSQL+"]", rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + selectExistSQL + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString( BrokerResources.X_LOAD_MESSAGE_FAILED,
id ), ex );
} finally {
if ( myConn ) {
Util.close( rs, pstmt, conn, myex );
} else {
Util.close( rs, pstmt, null, myex );
}
}
return found;
}
/**
* Check whether the specified message exists.
* @param conn
* @param dstID the destination
* @param mid the system message id of the message to be checked
* @throws BrokerException if the message does not exist in the store
*/
public void checkMessage( Connection conn, String dstID, String mid )
throws BrokerException {
if ( !hasMessage( conn, mid ) ) {
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED+"[checkMessage():"+mid+", "+dstID+"]", rbe );
}
throw new BrokerException(
br.getKString( BrokerResources.E_MSG_NOT_FOUND_IN_STORE,
mid, dstID ), Status.NOT_FOUND );
}
}
/**
* Get debug information about the store.
* @param conn database connection
* @return A HashMap of name value pair of information
*/
public HashMap getDebugInfo( Connection conn ) {
HashMap map = new HashMap();
int count = -1;
try {
// Get row count
count = getRowCount( null, null );
} catch ( Exception e ) {
logger.log( Logger.ERROR, e.getMessage(), e.getCause() );
}
map.put( "Messages(" + tableName + ")", String.valueOf( count ) );
return map;
}
/**
* Return the message count for the given broker.
* @param conn database connection
* @param brokerID the broker ID
* @return the message count
*/
public int getMessageCount( Connection conn, String brokerID ) throws BrokerException {
int size = -1;
boolean myConn = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
try {
// Get a connection
if ( conn == null ) {
conn = DBManager.getDBManager().getConnection( true );
myConn = true;
}
pstmt = conn.prepareStatement( selectCountByBrokerSQL );
pstmt.setString( 1, brokerID );
rs = pstmt.executeQuery();
if ( rs.next() ) {
size = rs.getInt( 1 );
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED+"["+selectCountByBrokerSQL+"]", rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + selectCountByBrokerSQL + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString(
BrokerResources.X_GET_MSG_COUNTS_FOR_BROKER_FAILED,
brokerID ), ex );
} finally {
if ( myConn ) {
Util.close( rs, pstmt, conn, myex );
} else {
Util.close( rs, pstmt, null, myex );
}
}
return size;
}
/**
* Return the number of persisted messages and total number of bytes for
* the given destination.
* @param conn database connection
* @param dst the destination
* @return a HashMap
*/
public HashMap getMessageStorageInfo( Connection conn, Destination dst, Long storeSession )
throws BrokerException {
HashMap data = new HashMap( 2 );
String dstID = dst.getUniqueName();
boolean myConn = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
String sql = selectCountByDstBrokerSQL;
try {
// Get a connection
DBManager dbMgr = DBManager.getDBManager();
if ( conn == null ) {
conn = DBManager.getDBManager().getConnection( true );
myConn = true;
}
if (storeSession != null) {
StoreSessionDAOImpl.checkStoreSessionOwner( conn, storeSession, dbMgr.getBrokerID() );
sql = selectCountByDstSessionSQL;
}
pstmt = conn.prepareStatement( sql );
if (storeSession != null) {
pstmt.setLong( 1, storeSession.longValue() );
} else {
pstmt.setString( 1, dbMgr.getBrokerID() );
}
pstmt.setString( 2, dstID );
pstmt.setString( 3, dstID );
rs = pstmt.executeQuery();
if ( rs.next() ) {
data.put( DestMetricsCounters.CURRENT_MESSAGES,
new Integer( rs.getInt( 1 ) ) );
data.put( DestMetricsCounters.CURRENT_MESSAGE_BYTES,
new Long( rs.getLong( 2 ) ) );
} else {
// Destination doesn't exists
throw new BrokerException(
br.getKString( BrokerResources.E_DESTINATION_NOT_FOUND_IN_STORE,
dstID ), Status.NOT_FOUND );
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED+"["+sql+"]", rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + sql + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString( BrokerResources.X_GET_COUNTS_FROM_DATABASE_FAILED,
dstID ), ex );
} finally {
if ( myConn ) {
Util.close( rs, pstmt, conn, myex );
} else {
Util.close( rs, pstmt, null, myex );
}
}
return data;
}
/**
* Load a single message or messages from a ResultSet.
* @param rs the ResultSet
* @param isSingleRow specify interesed in only the 1st row of the ResultSet
* @return a message or a List of messages
* @throws IOException
* @throws SQLException
*/
protected Object loadData( ResultSet rs, boolean isSingleRow )
throws IOException, SQLException {
ArrayList list = null;
if ( !isSingleRow ) {
list = new ArrayList( 100 );
}
while ( rs.next() ) {
Packet msg = new Packet(false);
msg.generateTimestamp(false);
msg.generateSequenceNumber(false);
InputStream is = null;
if ( getMsgColumnType(rs, 1) == Types.BLOB ) {
Blob blob = rs.getBlob( 1 );
is = blob.getBinaryStream();
} else {
is = rs.getBinaryStream( 1 );
}
msg.readPacket(is);
is.close();
if (Store.getDEBUG()) {
logger.log(Logger.DEBUG,
"Loaded message from database for "+ msg.getMessageID() );
}
if ( isSingleRow ) {
return msg;
} else {
list.add( msg );
}
}
return list;
}
/**
* Get Message column type (e.g. is it a Blob?)
* @param rs the ResultSet
* @param msgColumnIndex the index of the Message column
* @return column type
*/
protected int getMsgColumnType( ResultSet rs, int msgColumnIndex )
throws SQLException {
// Cache the result
if ( msgColumnType == -Integer.MAX_VALUE ) {
msgColumnType = rs.getMetaData().getColumnType( msgColumnIndex );
}
return msgColumnType;
}
/**
* Check if a msg can be inserted. A BrokerException is thrown if the msg
* already exists in the store, the destination doesn't exist, or
* the specified broker is being taken over by another broker (HA mode).
* @param conn database connection
* @param msgID message ID
* @param dstID destination ID
* @param brokerID broker ID
* @throws BrokerException if msg cannot be inserted
*/
protected void canInsertMsg( Connection conn, String msgID, String dstID,
String brokerID ) throws BrokerException {
PreparedStatement pstmt = null;
ResultSet rs = null;
Exception myex = null;
try {
pstmt = conn.prepareStatement( selectCanInsertSQL );
pstmt.setString( 1, msgID );
pstmt.setString( 2, dstID );
if ( Globals.getHAEnabled() ) {
pstmt.setString( 3, brokerID );
}
rs = pstmt.executeQuery();
if ( rs.next() ) {
// Make sure msg doesn't exist, i.e. created timestamp == 0
if ( rs.getLong( 1 ) > 0 ) {
throw new BrokerException( br.getKString(
BrokerResources.E_MSG_EXISTS_IN_STORE, msgID, dstID ),
Status.CONFLICT );
}
// Make sure dst does exist, i.e. created timestamp > 0
if ( rs.getLong( 2 ) == 0 ) {
throw new BrokerException( br.getKString(
BrokerResources.E_DESTINATION_NOT_FOUND_IN_STORE,
dstID ), Status.NOT_FOUND );
}
// Make sure broker is not being taken over, i.e. state == 0
if ( Globals.getHAEnabled() ) {
if ( rs.getInt( 3 ) > 0 ) {
BrokerException be = new StoreBeingTakenOverException(
br.getKString(BrokerResources.E_STORE_BEING_TAKEN_OVER) );
try {
DBManager dbMgr = DBManager.getDBManager();
BrokerDAO dao = dbMgr.getDAOFactory().getBrokerDAO();
HABrokerInfo bkrInfo = dao.getBrokerInfo( conn, dbMgr.getBrokerID() );
logger.log( Logger.ERROR, br.getKString(BrokerResources.X_INTERNAL_EXCEPTION,
bkrInfo.toString() ), be );
} catch (Throwable t) { /* Ignore error */ }
throw be;
}
}
} else {
// Shouldn't happen
throw new BrokerException(
br.getKString( BrokerResources.X_JDBC_QUERY_FAILED, selectCanInsertSQL ) );
}
} catch ( Exception e ) {
myex = e;
try {
if ( (conn != null) && !conn.getAutoCommit() ) {
conn.rollback();
}
} catch ( SQLException rbe ) {
logger.log( Logger.ERROR, BrokerResources.X_DB_ROLLBACK_FAILED+"["+selectCanInsertSQL+"]", rbe );
}
Exception ex;
if ( e instanceof BrokerException ) {
throw (BrokerException)e;
} else if ( e instanceof SQLException ) {
ex = DBManager.wrapSQLException("[" + selectCanInsertSQL + "]", (SQLException)e);
} else {
ex = e;
}
throw new BrokerException(
br.getKString( BrokerResources.X_JDBC_QUERY_FAILED, selectCanInsertSQL ), ex );
} finally {
Util.close( rs, pstmt, null, myex );
}
}
/**
* Message Enumeration class.
*/
private static class MsgEnumeration implements Enumeration {
DestinationUID dID = null;
MessageDAO msgDAO = null;
Iterator msgIDItr = null;
Object msgToReturn = null;
MsgEnumeration( DestinationUID dstUID, MessageDAO dao, Iterator itr ) {
dID = dstUID;
msgDAO = dao;
msgIDItr = itr;
}
public boolean hasMoreElements() {
Packet msg = null;
while ( msgIDItr.hasNext() ) {
String mid = null;
try {
mid = (String)msgIDItr.next();
msg = msgDAO.getMessage( null, dID, mid );
msgToReturn = msg;
return true;
} catch ( Exception e ) {
Globals.getLogger().logStack( Logger.ERROR,
BrokerResources.X_LOAD_MESSAGE_FAILED, mid, e );
}
}
// no more
msgToReturn = null;
return false;
}
public Object nextElement() {
if ( msgToReturn != null ) {
return msgToReturn;
} else {
throw new NoSuchElementException();
}
}
}
}
