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package org.mule.transport.jdbc; |
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import org.mule.DefaultMuleMessage; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.endpoint.InboundEndpoint; |
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import org.mule.api.lifecycle.CreateException; |
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import org.mule.api.service.Service; |
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import org.mule.api.transaction.Transaction; |
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import org.mule.api.transport.Connector; |
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import org.mule.api.transport.MessageAdapter; |
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import org.mule.transaction.TransactionCoordination; |
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import org.mule.transaction.XaTransactionFactory; |
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import org.mule.transport.ConnectException; |
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import org.mule.transport.TransactedPollingMessageReceiver; |
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import org.mule.transport.jdbc.i18n.JdbcMessages; |
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import org.mule.util.ArrayUtils; |
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import org.mule.util.MapUtils; |
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import java.sql.Connection; |
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import java.sql.SQLException; |
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import java.util.ArrayList; |
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import java.util.List; |
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public class JdbcMessageReceiver extends TransactedPollingMessageReceiver |
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{ |
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public static final String RECEIVE_MESSAGE_IN_TRANSCTION = "receiveMessageInTransaction"; |
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public static final String RECEIVE_MESSAGES_IN_XA_TRANSCTION = "receiveMessagesInXaTransaction"; |
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|
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protected JdbcConnector connector; |
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protected String readStmt; |
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protected String ackStmt; |
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protected List readParams; |
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protected List ackParams; |
46 | 12 | public boolean receiveMessagesInXaTransaction = false; |
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|
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public JdbcMessageReceiver(Connector connector, |
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Service service, |
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InboundEndpoint endpoint, |
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String readStmt, |
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String ackStmt) throws CreateException |
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{ |
54 | 12 | super(connector, service, endpoint); |
55 | 12 | this.setFrequency(((JdbcConnector) connector).getPollingFrequency()); |
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|
57 | 12 | boolean transactedEndpoint = endpoint.getTransactionConfig().isTransacted(); |
58 | 12 | boolean xaTransactedEndpoint = (transactedEndpoint && |
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endpoint.getTransactionConfig().getFactory() instanceof XaTransactionFactory); |
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|
61 | 12 | boolean receiveMessageInTransaction = MapUtils.getBooleanValue(endpoint.getProperties(), |
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RECEIVE_MESSAGE_IN_TRANSCTION, false); |
63 | 12 | this.setReceiveMessagesInTransaction(receiveMessageInTransaction && transactedEndpoint); |
64 | 12 | if (receiveMessageInTransaction && !transactedEndpoint) |
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{ |
66 | 0 | logger.warn(JdbcMessages.forcePropertyNoTransaction(RECEIVE_MESSAGE_IN_TRANSCTION, "transaction")); |
67 | 0 | receiveMessageInTransaction = false; |
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} |
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|
70 | 12 | receiveMessagesInXaTransaction = MapUtils.getBooleanValue(endpoint.getProperties(), |
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RECEIVE_MESSAGES_IN_XA_TRANSCTION, false); |
72 | 12 | if (receiveMessagesInXaTransaction && !receiveMessageInTransaction) |
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{ |
74 | 0 | logger.warn(JdbcMessages.forceProperty(RECEIVE_MESSAGES_IN_XA_TRANSCTION, RECEIVE_MESSAGE_IN_TRANSCTION)); |
75 | 0 | receiveMessagesInXaTransaction = false; |
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} |
77 | 12 | else if (receiveMessagesInXaTransaction && isReceiveMessagesInTransaction() && !xaTransactedEndpoint) |
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{ |
79 | 0 | logger.warn(JdbcMessages.forcePropertyNoTransaction(RECEIVE_MESSAGES_IN_XA_TRANSCTION, "XA transaction")); |
80 | 0 | receiveMessagesInXaTransaction = false; |
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} |
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|
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|
84 | 12 | this.connector = (JdbcConnector) connector; |
85 | 12 | this.setReceiveMessagesInTransaction(endpoint.getTransactionConfig().isTransacted() |
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&& !this.connector.isTransactionPerMessage()); |
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|
88 | 12 | this.readParams = new ArrayList(); |
89 | 12 | this.readStmt = this.connector.parseStatement(readStmt, this.readParams); |
90 | 12 | this.ackParams = new ArrayList(); |
91 | 12 | this.ackStmt = this.connector.parseStatement(ackStmt, this.ackParams); |
92 | 12 | } |
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protected void doDispose() |
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{ |
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|
97 | 24 | } |
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|
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protected void doConnect() throws Exception |
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{ |
101 | 10 | Connection con = null; |
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try |
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{ |
104 | 10 | con = this.connector.getConnection(); |
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} |
106 | 0 | catch (Exception e) |
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{ |
108 | 0 | throw new ConnectException(e, this); |
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} |
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finally |
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{ |
112 | 10 | JdbcUtils.close(con); |
113 | 10 | } |
114 | 10 | } |
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|
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protected void doDisconnect() throws ConnectException |
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{ |
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|
119 | 10 | } |
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public void processMessage(Object message) throws Exception |
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{ |
123 | 2 | Connection con = null; |
124 | 2 | Transaction tx = TransactionCoordination.getInstance().getTransaction(); |
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try |
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{ |
127 | 2 | con = this.connector.getConnection(); |
128 | 2 | MessageAdapter msgAdapter = this.connector.getMessageAdapter(message); |
129 | 2 | MuleMessage umoMessage = new DefaultMuleMessage(msgAdapter); |
130 | 2 | if (this.ackStmt != null) |
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{ |
132 | 2 | Object[] ackParams = connector.getParams(endpoint, this.ackParams, umoMessage, this.endpoint.getEndpointURI().getAddress()); |
133 | 2 | if (logger.isDebugEnabled()) |
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{ |
135 | 0 | logger.debug("SQL UPDATE: " + ackStmt + ", params = " + ArrayUtils.toString(ackParams)); |
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} |
137 | 2 | int nbRows = connector.getQueryRunner().update(con, this.ackStmt, ackParams); |
138 | 2 | if (nbRows != 1) |
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{ |
140 | 2 | logger.warn("Row count for ack should be 1 and not " + nbRows); |
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} |
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} |
143 | 2 | routeMessage(umoMessage, tx, tx != null || endpoint.isSynchronous()); |
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|
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} |
146 | 0 | catch (Exception ex) |
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{ |
148 | 0 | if (tx != null) |
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{ |
150 | 0 | tx.setRollbackOnly(); |
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} |
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|
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|
154 | 0 | throw ex; |
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} |
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finally |
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{ |
158 | 2 | if (endpoint.getMuleContext().getTransactionManager() != null || tx == null) |
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{ |
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171 | 2 | JdbcUtils.close(con); |
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} |
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} |
174 | 2 | } |
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|
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public List getMessages() throws Exception |
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{ |
178 | 2 | Connection con = null; |
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try |
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{ |
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try |
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{ |
183 | 2 | con = this.connector.getConnection(); |
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} |
185 | 0 | catch (SQLException e) |
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{ |
187 | 0 | throw new ConnectException(e, this); |
188 | 2 | } |
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|
190 | 2 | Object[] readParams = connector.getParams(endpoint, this.readParams, null, this.endpoint.getEndpointURI().getAddress()); |
191 | 2 | if (logger.isDebugEnabled()) |
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{ |
193 | 0 | logger.debug("SQL QUERY: " + readStmt + ", params = " + ArrayUtils.toString(readParams)); |
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} |
195 | 2 | Object results = connector.getQueryRunner().query(con, this.readStmt, readParams, |
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connector.getResultSetHandler()); |
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|
198 | 2 | List resultList = (List) results; |
199 | 2 | if (resultList != null && resultList.size() > 1 && isReceiveMessagesInTransaction() && !receiveMessagesInXaTransaction) |
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{ |
201 | 0 | logger.warn(JdbcMessages.moreThanOneMessageInTransaction(RECEIVE_MESSAGE_IN_TRANSCTION, RECEIVE_MESSAGES_IN_XA_TRANSCTION)); |
202 | 0 | List singleResultList = new ArrayList(1); |
203 | 0 | singleResultList.add(resultList); |
204 | 0 | return singleResultList; |
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} |
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|
207 | 2 | return resultList; |
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} |
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finally |
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{ |
211 | 2 | if (TransactionCoordination.getInstance().getTransaction() == null) |
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{ |
213 | 2 | JdbcUtils.close(con); |
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} |
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} |
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} |
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} |