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HSQLDB - Lightweight 100% Java SQL Database Engine
/* Copyright (c) 2001-2019, The HSQL Development Group
* 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 the HSQL Development Group 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 HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* 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 org.hsqldb.error;
import java.lang.reflect.Field;
import org.hsqldb.HsqlException;
import org.hsqldb.lib.StringUtil;
import org.hsqldb.resources.ResourceBundleHandler;
import org.hsqldb.result.Result;
/**
* Contains static factory methods to produce instances of HsqlException
*
* @author Loic Lefevre
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @version 2.2.7
* @since 1.9.0
*/
public class Error {
//
public static boolean TRACE = false;
public static boolean TRACESYSTEMOUT = false;
//
private static final String defaultMessage = "S1000 General error";
private static final String errPropsName = "sql-state-messages";
private static final int bundleHandle =
ResourceBundleHandler.getBundleHandle(errPropsName, null);
private static final String MESSAGE_TAG = "$$";
private static final int SQL_STATE_DIGITS = 5;
private static final int SQL_CODE_DIGITS = 4;
private static final int ERROR_CODE_BASE = 11;
public static RuntimeException runtimeError(int code, String add) {
HsqlException e = error(code, add);
return new RuntimeException(e.getMessage());
}
public static HsqlException error(int code, String add) {
return error((Throwable) null, code, add);
}
public static HsqlException error(Throwable t, int code, String add) {
String s = getMessage(code);
if (add != null) {
s += ": " + add;
}
return new HsqlException(t, s.substring(SQL_STATE_DIGITS + 1),
s.substring(0, SQL_STATE_DIGITS), -code);
}
public static HsqlException parseError(int code, String add,
int lineNumber) {
String s = getMessage(code);
if (add != null) {
s = s + ": " + add;
}
if (lineNumber > 1) {
add = getMessage(ErrorCode.M_parse_line);
s = s + " :" + add + lineNumber;
}
return new HsqlException(null, s.substring(SQL_STATE_DIGITS + 1),
s.substring(0, SQL_STATE_DIGITS), -code);
}
public static HsqlException error(int code) {
return error(null, code, 0, null);
}
public static HsqlException error(int code, Throwable t) {
String message = getMessage(code, 0, null);
return new HsqlException(t, message.substring(0, SQL_STATE_DIGITS),
-code);
}
/**
* Compose error message by inserting the strings in the add parameters
* in placeholders within the error message. The message string contains
* $$ markers for each context variable. Context variables are supplied in
* the add parameters.
*
* @param code main error code
* @param subCode sub error code (if 0 => no subMessage!)
* @param add optional parameters
*
* @return an HsqlException
*/
public static HsqlException error(Throwable t, int code, int subCode,
final Object[] add) {
String message = getMessage(code, subCode, add);
int sqlCode = subCode < ERROR_CODE_BASE ? code
: subCode;
return new HsqlException(t, message.substring(SQL_STATE_DIGITS + 1),
message.substring(0, SQL_STATE_DIGITS),
-sqlCode);
}
public static HsqlException parseError(int code, int subCode,
int lineNumber,
final Object[] add) {
String message = getMessage(code, subCode, add);
if (lineNumber > 1) {
String sub = getMessage(ErrorCode.M_parse_line);
message = message + " :" + sub + lineNumber;
}
int sqlCode = subCode < ERROR_CODE_BASE ? code
: subCode;
return new HsqlException(null,
message.substring(SQL_STATE_DIGITS + 1),
message.substring(0, SQL_STATE_DIGITS),
-sqlCode);
}
public static HsqlException error(int code, int code2) {
return error(code, getMessage(code2));
}
/**
* For SIGNAL and RESIGNAL
* @see HsqlException#HsqlException(Throwable,String, String, int)
* @return an HsqlException
*/
public static HsqlException error(String message, String sqlState) {
int code = getCode(sqlState);
if (code < 1000) {
code = ErrorCode.X_45000;
}
if (message == null) {
message = getMessage(code);
}
return new HsqlException(null, message, sqlState, code);
}
/**
* Compose error message by inserting the strings in the add variables
* in placeholders within the error message. The message string contains
* $$ markers for each context variable. Context variables are supplied in
* the add parameter. (by Loic Lefevre)
*
* @param message message string
* @param add optional parameters
*
* @return an HsqlException
*/
private static String insertStrings(String message, Object[] add) {
StringBuilder sb = new StringBuilder(message.length() + 32);
int lastIndex = 0;
int escIndex = message.length();
// removed test: i < add.length
// because if mainErrorMessage is equal to "blabla $$"
// then the statement escIndex = mainErrorMessage.length();
// is never reached! ???
for (int i = 0; i < add.length; i++) {
escIndex = message.indexOf(MESSAGE_TAG, lastIndex);
if (escIndex == -1) {
break;
}
sb.append(message, lastIndex, escIndex);
sb.append(add[i] == null ? "null exception message"
: add[i].toString());
lastIndex = escIndex + MESSAGE_TAG.length();
}
escIndex = message.length();
sb.append(message, lastIndex, escIndex);
return sb.toString();
}
/**
* Returns the error message given the error code.
* This method is be used when throwing exception other
* than HsqlException.
*
* @param errorCode the error code associated to the error message
* @return the error message associated with the error code
*/
public static String getMessage(final int errorCode) {
return getMessage(errorCode, 0, null);
}
/**
* Returns the error SQL STATE sting given the error code.
* This method is be used when throwing exception based on other exceptions.
*
* @param errorCode the error code associated to the error message
* @return the error message associated with the error code
*/
public static String getStateString(final int errorCode) {
return getMessage(errorCode, 0, null).substring(0, SQL_STATE_DIGITS);
}
/**
* Returns the error message given the error code.
This method is used
* when throwing exception other than HsqlException.
*
* @param code the code for the error message
* @param subCode the code for the addon message
* @param add value(s) to use to replace the placeholer(s)
* @return the error message associated with the error code
*/
public static String getMessage(final int code, int subCode,
final Object[] add) {
String message = getResourceString(code);
if (subCode != 0) {
message += getResourceString(subCode);
}
if (add != null) {
message = insertStrings(message, add);
}
return message;
}
private static String getResourceString(int code) {
String key = StringUtil.toZeroPaddedString(code, SQL_CODE_DIGITS,
SQL_CODE_DIGITS);
String string = ResourceBundleHandler.getString(bundleHandle, key);
if (string == null) {
string = defaultMessage;
}
return string;
}
public static HsqlException error(final Result result) {
return new HsqlException(result);
}
/**
* Used to print messages to System.out
*
*
* @param message message to print
*/
public static void printSystemOut(String message) {
if (TRACESYSTEMOUT) {
System.out.println(message);
}
}
public static int getCode(String sqlState) {
try {
Field[] fields = ErrorCode.class.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
String name = fields[i].getName();
if (name.length() == 7 && name.endsWith(sqlState)) {
return fields[i].getInt(ErrorCode.class);
}
}
} catch (IllegalAccessException e) {}
return -1;
}
}