/*
* EmptyInputStream.java October 2002
*
* Copyright (C) 2002, Niall Gallagher <niallg@users.sf.net>
*
* 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.
*/
package org.simpleframework.http.message;
import java.io.InputStream;
/**
* The <code>EmptyInputStream</code> object provides a stream that
* is immediately empty. Each read method with this input stream
* will return a -1 value indicating that the stream has come to an
* end and no more data can be read from it.
*
* @author Niall Gallagher
*/
class EmptyInputStream extends InputStream {
/**
* This is used to provide a -1 value when an attempt is made to
* read from the stream. Implementing this method as so also
* ensures that all the other read methods return a -1 value.
*
* @return this returns a -1 when an attempt is made to read
*/
public int read() {
return -1;
}
}