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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 com.signalfx.shaded.apache.commons.io.input;
import java.io.IOException;
import java.io.InputStream;
import java.util.function.Supplier;
/**
* 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.
*
*
* @since 2.0
*/
public class BrokenInputStream extends InputStream {
/**
* The singleton instance.
*
* @since 2.12.0
*/
public static final BrokenInputStream INSTANCE = new BrokenInputStream();
/**
* A supplier for the exception that is thrown by all methods of this class.
*/
private final Supplier exceptionSupplier;
/**
* Constructs a new stream that always throws an {@link IOException}.
*/
public BrokenInputStream() {
this(() -> new IOException("Broken input stream"));
}
/**
* Constructs a new stream that always throws the given exception.
*
* @param exception the exception to be thrown.
*/
public BrokenInputStream(final IOException exception) {
this(() -> exception);
}
/**
* Constructs a new stream that always throws an {@link IOException}.
*
* @param exceptionSupplier a supplier for the exception to be thrown.
* @since 2.12.0
*/
public BrokenInputStream(final Supplier exceptionSupplier) {
this.exceptionSupplier = exceptionSupplier;
}
/**
* Throws the configured exception.
*
* @return nothing
* @throws IOException always thrown
*/
@Override
public int available() throws IOException {
throw exceptionSupplier.get();
}
/**
* Throws the configured exception.
*
* @throws IOException always thrown
*/
@Override
public void close() throws IOException {
throw exceptionSupplier.get();
}
/**
* Throws the configured exception.
*
* @return nothing
* @throws IOException always thrown
*/
@Override
public int read() throws IOException {
throw exceptionSupplier.get();
}
/**
* Throws the configured exception.
*
* @throws IOException always thrown
*/
@Override
public synchronized void reset() throws IOException {
throw exceptionSupplier.get();
}
/**
* Throws the configured exception.
*
* @param n ignored
* @return nothing
* @throws IOException always thrown
*/
@Override
public long skip(final long n) throws IOException {
throw exceptionSupplier.get();
}
}