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/*
Derby - Class com.pivotal.gemfirexd.internal.client.am.SqlException
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*
* Changes for GemFireXD distributed data platform (some marked by "GemStone changes")
*
* Portions Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you
* may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License. See accompanying
* LICENSE file.
*/
package com.pivotal.gemfirexd.internal.client.am;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Locale;
import java.util.MissingResourceException;
import com.gemstone.gemfire.internal.shared.ClientSharedData;
import com.pivotal.gemfirexd.internal.shared.common.error.ClientExceptionUtil;
import com.pivotal.gemfirexd.internal.shared.common.error.ExceptionUtil;
import com.pivotal.gemfirexd.internal.shared.common.i18n.MessageUtil;
import com.pivotal.gemfirexd.internal.shared.common.reference.SQLState;
// The signature of the stored procedure SQLCAMessage I have come out so far is as follows:
// SQLCAMessage (
// IN SQLCode INTEGER,
// IN SQLErrml SMALLINT,
// IN SQLErrmc VARCHAR(70),
// IN SQLErrp CHAR(8),
// IN SQLErrd0 INTEGER,
// IN SQLErrd1 INTEGER,
// IN SQLErrd2 INTEGER,
// IN SQLErrd3 INTEGER,
// IN SQLErrd4 INTEGER,
// IN SQLErrd5 INTEGER,
// IN SQLWarn CHAR(11),
// IN SQLState CHAR(5),
// IN Locale CHAR(5),
// IN BufferSize SMALLINT,
// IN LineWidth SMALLINT,
// OUT Message VARCHAR(2400))
//
// Some issues have been identified:
// 1. What would be the schema name of the stored procedue SQLCAMessage?
// 2. What is the format and type of the Locale parameter? If there does, I would really like to know the format of the locale in order to decide the type of the Locale parameter. Even there does not either, the Locale parameter probably still needs to be kept there for future extension, and we need to figure out the format of the locale.
// 3. What would be the format of the output message? Is this full message text ok or do we only need the explanation message corresponding to an SQL code. This somehow matters whether we need the Buffersize and Linewidth parameters for the stored procedure.
// 4. What if the invocation of stored procedure failed (due to, eg, connection dropping)? In this case, we probably need to return some client-side message.
//
// Note that this class does NOT extend java.sql.SQLException. This is because
// in JDBC 4 there will be multiple subclasses of SQLException defined by the
// spec. So we can't also extend SQLException without having to create our
// own mirror hierarchy of subclasses.
//
// When Derby is ready to throw an exception to the application, it catches
// SqlException and converts it to a java.sql.SQLException by calling the
// method getSQLException.
//
// It is also possible that internal routines may call public methods.
// In these cases, it will need to wrap a java.sql.SQLException inside
// a Derby SqlException so that the internal method does not have to throw
// java.sql.SQLException. Otherwise the chain of dependencies would quickly
// force the majority of internal methods to throw java.sql.SQLException.
// You can wrap a java.sql.SQLException inside a SqlException by using
// the constructor new SqlException(java.sql.SQLException wrapMe)chain is true.
*
* @param sqlca the SQLCA sent from the server
* @param number the message number for this exception (counting from 0)
* @param chain if true, generate the rest of the exception
* chain recursively and link it to this exception
*/
private SqlException(Sqlca sqlca, int number, boolean chain) {
this.sqlca_ = sqlca;
messageNumber_ = number;
sqlstate_ = sqlca.getSqlState(number);
int nextMsg = number + 1;
if (chain && (sqlca.numberOfMessages() > nextMsg)) {
setThrowable(new SqlException(sqlca, nextMsg, true));
}
}
// Once all messages are internationalized, these methods should become
// private
protected SqlException(LogWriter logWriter, String reason, String sqlState,
int errorCode)
{
this(logWriter, (Throwable)null, reason, sqlState, errorCode,
// GemStone changes BEGIN
null, null);
// GemStone changes END
}
protected SqlException(LogWriter logWriter, java.lang.Throwable throwable,
String reason, String sqlState, int errorCode,
// GemStone changes BEGIN
String msgid, Object[] args) {
// GemStone changes END
message_ = reason;
sqlstate_ = sqlState;
errorcode_ = errorCode;
setThrowable(throwable);
if (logWriter != null) {
logWriter.traceDiagnosable(this);
}
// GemStone changes BEGIN
this.msgid_ = msgid;
this.args_ = args;
// GemStone changes END
}
/**
* Set the cause of this exception based on its type.
* SQLExceptions and SqlExceptions are
* linked with setNextException() and initCause().
* All other exception types are linked with initCause().
*/
private void setThrowable(Throwable throwable)
{
if ( throwable instanceof SqlException )
{
setNextException((SqlException) throwable);
}
else if ( throwable instanceof SQLException )
{
setNextException((SQLException) throwable );
}
if (throwable != null) {
initCause(throwable);
}
}
/**
* Wrap a SQLException in a SqlException. This is used by internal routines
* so the don't have to throw SQLException, which, through the chain of
* dependencies would force more and more internal routines to throw
* SQLException
*/
public SqlException(SQLException wrapme)
{
wrappedException_ = wrapme;
}
/**
* Convert this SqlException into a java.sql.SQLException
*/
// GemStone changes BEGIN
public SQLException getSQLException(final Agent agent)
/* (original code)
public SQLException getSQLException()
*/
// GemStone changes END
{
if ( wrappedException_ != null )
{
return wrappedException_;
}
// When we have support for JDBC 4 SQLException subclasses, this is
// where we decide which exception to create
// GemStone changes BEGIN
// fetching exception should not change inUnitOfWork (#44311)
Connection conn = null;
boolean savedInUnitOfWork = false;
if (agent != null) {
if ((conn = agent.connection_) != null) {
savedInUnitOfWork = conn.inUnitOfWork_;
}
}
final SQLException sqle = ClientExceptionUtil.newSQLException(
getMessage(), getSQLState(), getErrorCode(), this);
/* (original code)
SQLException sqle = exceptionFactory.getSQLException(getMessage(), getSQLState(),
getErrorCode());
sqle.initCause(this);
*/
// GemStone changes END
// Set up the nextException chain
if ( nextException_ != null )
{
// The exception chain gets constructed automatically through
// the beautiful power of recursion
sqle.setNextException(nextException_.getSQLException(
null /* GemStoneAddition */));
}
// GemStone changes BEGIN
// restore inUnitOfWork
if (conn != null) {
conn.setInUnitOfWork(savedInUnitOfWork);
}
// GemStone changes END
return sqle;
}
// GemStone changes BEGIN
public SQLException getSQLException(final Agent agent,
String columnName) {
final Object[] args = this.args_;
if (args != null && this.msgid_ != null) {
if (SQLState.LANG_OUTSIDE_RANGE_FOR_DATATYPE.equals(this.msgid_)
|| SQLState.LANG_FORMAT_EXCEPTION.equals(this.msgid_)) {
// add column name to the exception message
if (args.length == 1 || (args.length > 1 && args[1] == null)) {
final Object[] newArgs = new Object[2];
if (columnName == null) {
columnName = "unknown";
}
newArgs[0] = args[0];
newArgs[1] = columnName;
this.args_ = newArgs;
}
}
else if (SQLState.LANG_DATA_TYPE_GET_MISMATCH.equals(this.msgid_)
|| SQLState.LANG_DATA_TYPE_SET_MISMATCH.equals(this.msgid_)
|| SQLState.UNSUPPORTED_ENCODING.equals(this.msgid_)) {
// add column name to the exception message
if (args.length == 2 || (args.length > 2 && args[2] == null)) {
final Object[] newArgs = new Object[3];
if (columnName == null) {
columnName = "unknown";
}
newArgs[0] = args[0];
newArgs[1] = args[1];
newArgs[2] = columnName;
this.args_ = newArgs;
}
}
else if (SQLState.LANG_DATE_RANGE_EXCEPTION.equals(this.msgid_)
|| SQLState.LANG_DATE_SYNTAX_EXCEPTION.equals(this.msgid_)) {
// add column name to the exception message
if (args.length == 0 || (args.length > 0 && args[0] == null)) {
final Object[] newArgs = new Object[1];
if (columnName == null) {
columnName = "unknown";
}
newArgs[0] = columnName;
this.args_ = newArgs;
}
}
}
return getSQLException(agent);
}
// GemStone changes END
// Label an exception element in a batched update exception chain.
// This text will be prepended onto the exceptions message text dynamically
// when getMessage() is called.
// Called by the Agent.
void setBatchPositionLabel(int index) {
batchPositionLabel_ = getMessageUtil().getTextMessage(BATCH_POSITION_ID) +
index + ": ";
}
public Sqlca getSqlca() {
return sqlca_;
}
public String getMessage() {
if ( wrappedException_ != null )
{
return wrappedException_.getMessage();
}
/* GemStone changes BEGIN */
// first try to get locally
String serverInfo = null;
try {
final String sqlerrmc;
// extract msgid and args from sqlerrmc
if (msgid_ == null && sqlca_ != null
&& (sqlerrmc = sqlca_.getSqlErrmc(messageNumber_)) != null
&& sqlerrmc.length() > 0) {
// first get server and thread information
int errmcIndex = 0;
int serverInfoIdx = sqlerrmc.indexOf(
ClientSharedData.SQLERRMC_SERVER_DELIMITER);
if (serverInfoIdx >= 0) {
serverInfo = sqlerrmc.substring(0, serverInfoIdx);
errmcIndex = serverInfoIdx
+ ClientSharedData.SQLERRMC_SERVER_DELIMITER.length();
}
// now split into arguments and msgid
final ArrayList args = new ArrayList(4);
final int tokenLen = ClientSharedData.SQLERRMC_TOKEN_DELIMITER.length();
int argIndex;
while ((argIndex = sqlerrmc.indexOf(
ClientSharedData.SQLERRMC_TOKEN_DELIMITER, errmcIndex)) >= 0) {
args.add(sqlerrmc.substring(errmcIndex, argIndex));
errmcIndex = argIndex + tokenLen;
}
msgid_ = sqlerrmc.substring(errmcIndex);
args_ = args.toArray(new String[args.size()]);
}
if (msgid_ != null) {
message_ = MessageUtil.getCompleteMessage(Locale.getDefault(),
getMessageUtil().getResourceBundleName(), msgid_, args_, false);
if (serverInfo != null && serverInfo.length() > 0) {
message_ = serverInfo + message_;
}
cachedMessage_ = message_;
}
} catch (MissingResourceException mre) {
// ignore and fallback to server
}
if (cachedMessage_ != null) {
// already retrieved the message so nothing to do
message_ = cachedMessage_;
}
// The Net JDBC message is retrieved and cached if we have a valid
// SQLCA handle.
// It is possible that we don't have one in case of a serialized
// SqlException for instance. In this case, we set the message to the
// last one cached previously (if any available).
// For serialized SqlException, we can serialize the SQLCA as the
// object handle would become invalid, upon deserialization, causing
// the connection and JDBC not being retrievable (hence why it is
// being cached here).
else /* GemStone changes END */ if (sqlca_ != null) {
cachedMessage_ = message_ =
((Sqlca) sqlca_).getJDBCMessage(messageNumber_);
}
/* (original code)
else if (cachedMessage_ != null) {
// SQLCA is no longer valid, set the message to the previously
// cached one
message_ = cachedMessage_;
}
*/
if (batchPositionLabel_ != null) {
message_ = batchPositionLabel_ + message_;
}
if ( causeString_ != null ) {
// Append the string indicating the cause of the exception
// (this happens only in JDK13 environments)
message_ += causeString_;
}
return message_;
}
public String getSQLState() {
if ( wrappedException_ != null )
{
return wrappedException_.getSQLState();
}
return sqlstate_;
}
public int getErrorCode() {
if ( wrappedException_ != null )
{
return wrappedException_.getErrorCode();
}
return errorcode_;
}
public SqlException getNextException()
{
if ( wrappedException_ != null )
{
return new SqlException(wrappedException_.getNextException());
}
else
{
return nextException_;
}
}
public void setNextException(SqlException nextException)
{
if ( wrappedException_ != null )
{
wrappedException_.setNextException(nextException.getSQLException(
null /* GemStoneAddition */));
}
else
{
nextException_ = nextException;
}
}
public void setNextException(SQLException nextException)
{
if ( wrappedException_ != null )
{
wrappedException_.setNextException(nextException);
}
else
{
// Add this exception to the end of the chain
SqlException theEnd = this;
while (theEnd.nextException_ != null) {
theEnd = theEnd.nextException_;
}
theEnd.nextException_ = new SqlException(nextException);
}
}
public void printTrace(java.io.PrintWriter printWriter, String header) {
ExceptionFormatter.printTrace(this, printWriter, header);
}
/**
* Helper method to construct an exception which basically says that
* we encountered an underlying Java exception
*/
public static SqlException javaException(LogWriter logWriter, Throwable e) {
return new SqlException(logWriter,
new ClientMessageId (SQLState.JAVA_EXCEPTION),
new Object[] {e.getClass().getName(), e.getMessage()}, e);
}
// Return a single SQLException without the "next" pointing to another SQLException.
// Because the "next" is a private field in java.sql.SQLException,
// we have to create a new SqlException in order to break the chain with "next" as null.
SqlException copyAsUnchainedSQLException(LogWriter logWriter) {
if (sqlca_ != null) {
// server error
return new SqlException(sqlca_, messageNumber_, false);
} else {
return new SqlException(logWriter, getMessage(), getSQLState(), getErrorCode()); // client error
}
}
// GemStone changes BEGIN
/* (original code)
/**
* Sets the exceptionFactory to be used for creating SQLException
* @param factory SQLExceptionFactory
*
public static void setExceptionFactory (SQLExceptionFactory factory) {
exceptionFactory = factory;
}
*/
public SqlException(LogWriter logwriter, ClientMessageId msgid, Object arg1,
Object arg2, Object arg3, Throwable cause) {
this(logwriter, msgid, new Object[] { arg1, arg2, arg3 }, cause);
}
/**
* Similar to StandardException.toString().
* Don't print the class name in the toString() method for generic case.
*/
public String toString() {
String msg = getMessage();
Class thisClazz = getClass();
String prefix;
String clsName = thisClazz.getName();
int lastIndex = clsName.lastIndexOf('.');
if (lastIndex >= 0) {
prefix = clsName.substring(lastIndex + 1);
if ("SqlException".equals(prefix)) {
prefix = "ERROR ";
}
else {
prefix = prefix + ' ';
}
}
else {
prefix = clsName + ' ';
}
return prefix + getSQLState() + ": " + msg;
}
// GemStone changes END
}
// An intermediate exception encapsulation to provide code-reuse
// for common ResultSet data conversion exceptions.
class ColumnTypeConversionException extends SqlException {
ColumnTypeConversionException(LogWriter logWriter, String sourceType,
String targetType) {
super(logWriter,
new ClientMessageId(SQLState.LANG_DATA_TYPE_GET_MISMATCH),
sourceType, targetType, (String)null);
}
}
// An intermediate exception encapsulation to provide code-reuse
// for common CrossConverters data conversion exceptions.
class LossOfPrecisionConversionException extends SqlException {
LossOfPrecisionConversionException(LogWriter logWriter, String instance) {
super(logWriter, new ClientMessageId(SQLState.LOSS_OF_PRECISION_EXCEPTION),
instance);
}
}
