org.openide.util.io.NullInputStream Maven / Gradle / Ivy
/*
* 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.openide.util.io;
import java.io.IOException;
import java.io.InputStream;
/**
* Input stream that is always empty.
* @author Ales Novak
*/
public class NullInputStream extends InputStream {
/**
* True if attempting to read from the stream should throw an {@link IOException}.
* False to simply return end of file.
*/
public boolean throwException;
/** Create an empty null input stream. */
public NullInputStream() {
}
public int read() throws IOException {
if (throwException) {
throw new IOException();
}
return -1;
}
}