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/*
* Copyright 2002-2017 Drew Noakes
*
* 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.
*
* More information about this project is available at:
*
* https://drewnoakes.com/code/exif/
* https://github.com/drewnoakes/metadata-extractor
*/
package com.drew.lang;
import com.drew.lang.annotations.NotNull;
import com.drew.lang.annotations.Nullable;
import java.io.PrintStream;
import java.io.PrintWriter;
/**
* Represents a compound exception, as modelled in JDK 1.4, but
* unavailable in previous versions. This class allows support
* of these previous JDK versions.
*
* @author Drew Noakes https://drewnoakes.com
*/
public class CompoundException extends Exception
{
private static final long serialVersionUID = -9207883813472069925L;
@Nullable
private final Throwable _innerException;
public CompoundException(@Nullable String msg)
{
this(msg, null);
}
public CompoundException(@Nullable Throwable exception)
{
this(null, exception);
}
public CompoundException(@Nullable String msg, @Nullable Throwable innerException)
{
super(msg);
_innerException = innerException;
}
@Nullable
public Throwable getInnerException()
{
return _innerException;
}
@Override
@NotNull
public String toString()
{
StringBuilder string = new StringBuilder();
string.append(super.toString());
if (_innerException != null) {
string.append("\n");
string.append("--- inner exception ---");
string.append("\n");
string.append(_innerException.toString());
}
return string.toString();
}
@Override
public void printStackTrace(@NotNull PrintStream s)
{
super.printStackTrace(s);
if (_innerException != null) {
s.println("--- inner exception ---");
_innerException.printStackTrace(s);
}
}
@Override
public void printStackTrace(@NotNull PrintWriter s)
{
super.printStackTrace(s);
if (_innerException != null) {
s.println("--- inner exception ---");
_innerException.printStackTrace(s);
}
}
@Override
public void printStackTrace()
{
super.printStackTrace();
if (_innerException != null) {
System.err.println("--- inner exception ---");
_innerException.printStackTrace();
}
}
}
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