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PostgreSQL JDBC - NG - Driver
/**
* Copyright (c) 2013, impossibl.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of impossibl.com nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.impossibl.postgres.jdbc;
import com.impossibl.postgres.api.jdbc.PGConnection;
import com.impossibl.postgres.api.jdbc.PGNotificationListener;
import java.sql.Array;
import java.sql.Blob;
import java.sql.CallableStatement;
import java.sql.Clob;
import java.sql.DatabaseMetaData;
import java.sql.NClob;
import java.sql.PreparedStatement;
import java.sql.SQLClientInfoException;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.SQLXML;
import java.sql.Savepoint;
import java.sql.Statement;
import java.sql.Struct;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.Executor;
/**
* Connection handle for PGPooledConnection
* @author Jesper Pedersen
*/
public class PGPooledConnectionDelegator implements PGConnection {
private PGPooledConnection owner;
private PGConnection delegator;
private boolean automatic;
/**
* Constructor
* @param owner The owner
* @param isXA Is XA
* @param delegator The delegator
*/
public PGPooledConnectionDelegator(PGPooledConnection owner, PGConnection delegator) {
this.owner = owner;
this.delegator = delegator;
this.automatic = false;
}
/**
* {@inheritDoc}
*/
public boolean isServerMinimumVersion(int major, int minor) {
try {
checkClosed();
return delegator.isServerMinimumVersion(major, minor);
}
catch (SQLException se) {
return false;
}
}
/**
* {@inheritDoc}
*/
public void addNotificationListener(String name, String channelNameFilter, PGNotificationListener listener) {
try {
checkClosed();
delegator.addNotificationListener(name, channelNameFilter, listener);
}
catch (SQLException se) {
// Nothing to do
}
}
/**
* {@inheritDoc}
*/
public void addNotificationListener(String channelNameFilter, PGNotificationListener listener) {
try {
checkClosed();
delegator.addNotificationListener(channelNameFilter, listener);
}
catch (SQLException se) {
// Nothing to do
}
}
/**
* {@inheritDoc}
*/
public void addNotificationListener(PGNotificationListener listener) {
try {
checkClosed();
delegator.addNotificationListener(listener);
}
catch (SQLException se) {
// Nothing to do
}
}
/**
* {@inheritDoc}
*/
public void removeNotificationListener(String name) {
try {
checkClosed();
delegator.removeNotificationListener(name);
}
catch (SQLException se) {
// Nothing to do
}
}
/**
* {@inheritDoc}
*/
public void removeNotificationListener(PGNotificationListener listener) {
try {
checkClosed();
delegator.removeNotificationListener(listener);
}
catch (SQLException se) {
// Nothing to do
}
}
/**
* {@inheritDoc}
*/
public void abort(Executor executor) throws SQLException {
try {
checkClosed();
delegator.abort(executor);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void clearWarnings() throws SQLException {
try {
checkClosed();
delegator.clearWarnings();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void close() throws SQLException {
if (delegator != null) {
SQLException ex = null;
if (!owner.isXA() && !delegator.getAutoCommit()) {
try {
delegator.rollback();
}
catch (SQLException e) {
ex = e;
}
}
delegator.clearWarnings();
delegator = null;
owner.setLast(null);
owner.fireConnectionClosed();
if (ex != null) {
throw ex;
}
}
}
/**
* {@inheritDoc}
*/
public void commit() throws SQLException {
try {
checkClosed();
delegator.commit();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
try {
checkClosed();
return delegator.createArrayOf(typeName, elements);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Blob createBlob() throws SQLException {
try {
checkClosed();
return delegator.createBlob();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Clob createClob() throws SQLException {
try {
checkClosed();
return delegator.createClob();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public NClob createNClob() throws SQLException {
try {
checkClosed();
return delegator.createNClob();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public SQLXML createSQLXML() throws SQLException {
try {
checkClosed();
return delegator.createSQLXML();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Statement createStatement() throws SQLException {
try {
checkClosed();
return new PGStatementDelegator(this, delegator.createStatement());
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
try {
checkClosed();
return new PGStatementDelegator(this, delegator.createStatement(resultSetType, resultSetConcurrency));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
try {
checkClosed();
return new PGStatementDelegator(this, delegator.createStatement(resultSetType, resultSetConcurrency, resultSetHoldability));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
try {
checkClosed();
return delegator.createStruct(typeName, attributes);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public boolean getAutoCommit() throws SQLException {
try {
checkClosed();
return delegator.getAutoCommit();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public String getCatalog() throws SQLException {
try {
checkClosed();
return delegator.getCatalog();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Properties getClientInfo() throws SQLException {
try {
checkClosed();
return delegator.getClientInfo();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public String getClientInfo(String name) throws SQLException {
try {
checkClosed();
return delegator.getClientInfo(name);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public int getHoldability() throws SQLException {
try {
checkClosed();
return delegator.getHoldability();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public DatabaseMetaData getMetaData() throws SQLException {
try {
checkClosed();
return delegator.getMetaData();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public int getNetworkTimeout() throws SQLException {
try {
checkClosed();
return delegator.getNetworkTimeout();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public String getSchema() throws SQLException {
try {
checkClosed();
return delegator.getSchema();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public int getTransactionIsolation() throws SQLException {
try {
checkClosed();
return delegator.getTransactionIsolation();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Map> getTypeMap() throws SQLException {
try {
checkClosed();
return delegator.getTypeMap();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public SQLWarning getWarnings() throws SQLException {
try {
checkClosed();
return delegator.getWarnings();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public boolean isClosed() throws SQLException {
return delegator == null ? Boolean.TRUE : Boolean.FALSE;
}
/**
* {@inheritDoc}
*/
public boolean isReadOnly() throws SQLException {
try {
checkClosed();
return delegator.isReadOnly();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public boolean isValid(int timeout) throws SQLException {
try {
checkClosed();
return delegator.isValid(timeout);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public String nativeSQL(String sql) throws SQLException {
try {
checkClosed();
return delegator.nativeSQL(sql);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public CallableStatement prepareCall(String sql) throws SQLException {
try {
checkClosed();
return new PGCallableStatementDelegator(this, delegator.prepareCall(sql));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
try {
checkClosed();
return new PGCallableStatementDelegator(this, delegator.prepareCall(sql, resultSetType, resultSetConcurrency));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
try {
checkClosed();
return new PGCallableStatementDelegator(this, delegator.prepareCall(sql, resultSetType, resultSetConcurrency, resultSetHoldability));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public PreparedStatement prepareStatement(String sql) throws SQLException {
try {
checkClosed();
return new PGPreparedStatementDelegator(this, delegator.prepareStatement(sql));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException {
try {
checkClosed();
return new PGPreparedStatementDelegator(this, delegator.prepareStatement(sql, autoGeneratedKeys));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException {
try {
checkClosed();
return new PGPreparedStatementDelegator(this, delegator.prepareStatement(sql, columnIndexes));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
try {
checkClosed();
return new PGPreparedStatementDelegator(this, delegator.prepareStatement(sql, resultSetType, resultSetConcurrency));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException {
try {
checkClosed();
return new PGPreparedStatementDelegator(this, delegator.prepareStatement(sql, resultSetType, resultSetConcurrency, resultSetHoldability));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException {
try {
checkClosed();
return new PGPreparedStatementDelegator(this, delegator.prepareStatement(sql, columnNames));
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void releaseSavepoint(Savepoint savepoint) throws SQLException {
try {
checkClosed();
delegator.releaseSavepoint(savepoint);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void rollback() throws SQLException {
try {
checkClosed();
delegator.rollback();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void rollback(Savepoint savepoint) throws SQLException {
try {
checkClosed();
delegator.rollback(savepoint);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void setAutoCommit(boolean autoCommit) throws SQLException {
try {
checkClosed();
delegator.setAutoCommit(autoCommit);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void setCatalog(String catalog) throws SQLException {
try {
checkClosed();
delegator.setCatalog(catalog);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void setClientInfo(Properties properties) throws SQLClientInfoException {
try {
checkClosed();
delegator.setClientInfo(properties);
}
catch (SQLClientInfoException scie) {
owner.fireConnectionError(scie);
throw scie;
}
catch (SQLException se) {
owner.fireConnectionError(se);
SQLClientInfoException scie = new SQLClientInfoException();
scie.initCause(se);
throw scie;
}
}
/**
* {@inheritDoc}
*/
public void setClientInfo(String name, String value) throws SQLClientInfoException {
try {
checkClosed();
delegator.setClientInfo(name, value);
}
catch (SQLClientInfoException scie) {
owner.fireConnectionError(scie);
throw scie;
}
catch (SQLException se) {
owner.fireConnectionError(se);
SQLClientInfoException scie = new SQLClientInfoException();
scie.initCause(se);
throw scie;
}
}
/**
* {@inheritDoc}
*/
public void setHoldability(int holdability) throws SQLException {
try {
delegator.setHoldability(holdability);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException {
try {
checkClosed();
delegator.setNetworkTimeout(executor, milliseconds);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void setReadOnly(boolean readOnly) throws SQLException {
try {
checkClosed();
delegator.setReadOnly(readOnly);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Savepoint setSavepoint() throws SQLException {
try {
checkClosed();
return delegator.setSavepoint();
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public Savepoint setSavepoint(String name) throws SQLException {
try {
checkClosed();
return delegator.setSavepoint(name);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void setSchema(String schema) throws SQLException {
try {
checkClosed();
delegator.setSchema(schema);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void setTransactionIsolation(int level) throws SQLException {
try {
checkClosed();
delegator.setTransactionIsolation(level);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public void setTypeMap(Map> map) throws SQLException {
try {
checkClosed();
delegator.setTypeMap(map);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public boolean isWrapperFor(Class iface) throws SQLException {
try {
checkClosed();
return delegator.isWrapperFor(iface);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
/**
* {@inheritDoc}
*/
public T unwrap(Class iface) throws SQLException {
try {
checkClosed();
return delegator.unwrap(iface);
}
catch (SQLException se) {
owner.fireConnectionError(se);
throw se;
}
}
void reset() {
if (delegator != null) {
automatic = true;
}
delegator = null;
}
void fireConnectionError(SQLException se) {
owner.fireConnectionError(se);
}
void fireStatementClosed(PreparedStatement ps) {
owner.fireStatementClosed(ps);
}
void fireStatementError(PreparedStatement ps, SQLException se) {
owner.fireStatementError(ps, se);
}
private void checkClosed() throws SQLException {
if (delegator == null) {
throw new PGSQLSimpleException(automatic ? "Connection has been closed automatically" : "Connection has been closed",
"08003");
}
}
}
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