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/*
 * 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.
 */
package org.apache.commons.io.input;

import java.io.IOException;
import java.io.InputStream;

/**
 * Broken input stream. This stream always throws an {@link IOException} from
 * all the {@link InputStream} methods where the exception is declared.
 * 

* This class is mostly useful for testing error handling in code that uses an * input stream. * * @since 2.0 */ public class BrokenInputStream extends InputStream { /** * The exception that is thrown by all methods of this class. */ private final IOException exception; /** * Creates a new stream that always throws the given exception. * * @param exception the exception to be thrown */ public BrokenInputStream(final IOException exception) { this.exception = exception; } /** * Creates a new stream that always throws an {@link IOException} */ public BrokenInputStream() { this(new IOException("Broken input stream")); } /** * Throws the configured exception. * * @return nothing * @throws IOException always thrown */ @Override public int read() throws IOException { throw exception; } /** * Throws the configured exception. * * @return nothing * @throws IOException always thrown */ @Override public int available() throws IOException { throw exception; } /** * Throws the configured exception. * * @param n ignored * @return nothing * @throws IOException always thrown */ @Override public long skip(final long n) throws IOException { throw exception; } /** * Throws the configured exception. * * @throws IOException always thrown */ @Override public synchronized void reset() throws IOException { throw exception; } /** * Throws the configured exception. * * @throws IOException always thrown */ @Override public void close() throws IOException { throw exception; } }





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