/*
* Copyright 2010-2020 Redgate Software Ltd
*
* 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.
*/
package org.flywaydb.core.internal.util;
import java.sql.SQLException;
Utility class for dealing with exceptions.
/**
* Utility class for dealing with exceptions.
*/
public class ExceptionUtils {
Prevents instantiation.
/**
* Prevents instantiation.
*/
private ExceptionUtils() {
//Do nothing
}
Returns the root cause of this throwable.
Params: - throwable – The throwable to inspect.
Returns: The root cause or the throwable itself if it doesn't have a cause.
/**
* Returns the root cause of this throwable.
*
* @param throwable The throwable to inspect.
* @return The root cause or the throwable itself if it doesn't have a cause.
*/
public static Throwable getRootCause(Throwable throwable) {
if (throwable == null) {
return null;
}
Throwable cause = throwable;
Throwable rootCause;
while ((rootCause = cause.getCause()) != null) {
cause = rootCause;
}
return cause;
}
Retrives the exact location where this exception was thrown.
Params: - e – The exception.
Returns: The location, suitable for a debug message.
/**
* Retrives the exact location where this exception was thrown.
*
* @param e The exception.
* @return The location, suitable for a debug message.
*/
public static String getThrowLocation(Throwable e) {
StackTraceElement element = e.getStackTrace()[0];
int lineNumber = element.getLineNumber();
return element.getClassName() + "." + element.getMethodName()
+ (lineNumber < 0 ? "" : ":" + lineNumber)
+ (element.isNativeMethod() ? " [native]" : "");
}
Transforms the details of this SQLException into a nice readable message.
Params: - e – The exception.
Returns: The message.
/**
* Transforms the details of this SQLException into a nice readable message.
*
* @param e The exception.
* @return The message.
*/
public static String toMessage(SQLException e) {
SQLException cause = e;
while (cause.getNextException() != null) {
cause = cause.getNextException();
}
String message = "SQL State : " + cause.getSQLState() + "\n"
+ "Error Code : " + cause.getErrorCode() + "\n";
if (cause.getMessage() != null) {
message += "Message : " + cause.getMessage().trim() + "\n";
}
return message;
}
}