diff options
Diffstat (limited to 'src/org/apache/http/impl/io/IdentityInputStream.java')
-rw-r--r-- | src/org/apache/http/impl/io/IdentityInputStream.java | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/org/apache/http/impl/io/IdentityInputStream.java b/src/org/apache/http/impl/io/IdentityInputStream.java new file mode 100644 index 0000000..390d5b7 --- /dev/null +++ b/src/org/apache/http/impl/io/IdentityInputStream.java @@ -0,0 +1,90 @@ +/* + * $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); + } + } + +} |