106 lines
3.1 KiB
Java
106 lines
3.1 KiB
Java
/*
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* Copyright (c) 1996, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.rmi.transport.proxy;
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import java.io.*;
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/**
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* The HttpSendOutputStream class is used by the HttpSendSocket class as
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* a layer on the top of the OutputStream it returns so that it can be
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* notified of attempts to write to it. This allows the HttpSendSocket
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* to know when it should construct a new message.
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*/
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class HttpSendOutputStream extends FilterOutputStream {
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/** the HttpSendSocket object that is providing this stream */
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HttpSendSocket owner;
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/**
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* Create new filter on a given output stream.
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* @param out the OutputStream to filter from
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* @param owner the HttpSendSocket that is providing this stream
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*/
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public HttpSendOutputStream(OutputStream out, HttpSendSocket owner)
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throws IOException
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{
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super(out);
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this.owner = owner;
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}
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/**
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* Mark this stream as inactive for its owner socket, so the next time
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* a write is attempted, the owner will be notified and a new underlying
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* output stream obtained.
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*/
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public void deactivate()
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{
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out = null;
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}
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/**
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* Write a byte of data to the stream.
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*/
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public void write(int b) throws IOException
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{
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if (out == null)
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out = owner.writeNotify();
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out.write(b);
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}
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/**
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* Write a subarray of bytes.
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* @param b the buffer from which the data is to be written
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* @param off the start offset of the data
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* @param len the number of bytes to be written
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*/
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public void write(byte b[], int off, int len) throws IOException
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{
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if (len == 0)
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return;
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if (out == null)
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out = owner.writeNotify();
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out.write(b, off, len);
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}
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/**
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* Flush the stream.
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*/
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public void flush() throws IOException
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{
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if (out != null)
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out.flush();
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}
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/**
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* Close the stream.
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*/
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public void close() throws IOException
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{
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flush();
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owner.close();
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}
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}
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