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/*
* Copyright 2002-2012 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:
*
* http://drewnoakes.com/code/exif/
* http://code.google.com/p/metadata-extractor/
*/
package com.drew.lang;
import com.drew.lang.annotations.NotNull;
import java.io.IOException;
/**
* A checked replacement for IndexOutOfBoundsException. Used by BufferReader.
*
* @author Drew Noakes http://drewnoakes.com
*/
public final class BufferBoundsException extends Exception
{
private static final long serialVersionUID = 2911102837808946396L;
public BufferBoundsException(@NotNull byte[] buffer, int index, int bytesRequested)
{
super(getMessage(buffer, index, bytesRequested));
}
public BufferBoundsException(final String message)
{
super(message);
}
public BufferBoundsException(final String message, final IOException innerException)
{
super(message, innerException);
}
private static String getMessage(@NotNull byte[] buffer, int index, int bytesRequested)
{
if (index < 0)
return String.format("Attempt to read from buffer using a negative index (%s)", index);
return String.format("Attempt to read %d byte%s from beyond end of buffer (requested index: %d, max index: %d)",
bytesRequested, bytesRequested==1?"":"s", index, buffer.length - 1);
}
}
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