| /* |
| * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/impl/io/IdentityInputStream.java $ |
| * $Revision: 560358 $ |
| * $Date: 2007-07-27 12:30:42 -0700 (Fri, 27 Jul 2007) $ |
| * |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.http.impl.io; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.http.io.SessionInputBuffer; |
| |
| /** |
| * A stream for reading from a {@link SessionInputBuffer session input buffer}. |
| * |
| * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> |
| * |
| * @version $Revision: 560358 $ |
| * |
| * @since 4.0 |
| */ |
| public class IdentityInputStream extends InputStream { |
| |
| private final SessionInputBuffer in; |
| |
| private boolean closed = false; |
| |
| public IdentityInputStream(final SessionInputBuffer in) { |
| super(); |
| if (in == null) { |
| throw new IllegalArgumentException("Session input buffer may not be null"); |
| } |
| this.in = in; |
| } |
| |
| public int available() throws IOException { |
| if (!this.closed && this.in.isDataAvailable(10)) { |
| return 1; |
| } else { |
| return 0; |
| } |
| } |
| |
| public void close() throws IOException { |
| this.closed = true; |
| } |
| |
| public int read() throws IOException { |
| if (this.closed) { |
| return -1; |
| } else { |
| return this.in.read(); |
| } |
| } |
| |
| public int read(final byte[] b, int off, int len) throws IOException { |
| if (this.closed) { |
| return -1; |
| } else { |
| return this.in.read(b, off, len); |
| } |
| } |
| |
| } |