Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 259 insertions, 0 deletions

diff --git a/ridljar/com/sun/star/comp/connections/PipedConnection.java b/ridljar/com/sun/star/comp/connections/PipedConnection.java
new file mode 100644
index 000000000..631cfae40
--- /dev/null
+++ b/ridljar/com/sun/star/comp/connections/PipedConnection.java
@@ -0,0 +1,259 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+package com.sun.star.comp.connections;
+
+
+import com.sun.star.comp.loader.FactoryHelper;
+import com.sun.star.connection.XConnection;
+import com.sun.star.lang.XMultiServiceFactory;
+import com.sun.star.lang.XSingleServiceFactory;
+import com.sun.star.registry.XRegistryKey;
+
+/**
+ * The <code>PipedConnection</code> is a component that implements the
+ * <code>XConnection</code> Interface.
+ * <p>It is useful for <code>Thread</code> communication in one Process.</p>
+ *
+ * @see         com.sun.star.connection.XConnection
+ * @see         com.sun.star.comp.loader.JavaLoader
+ * @since       UDK1.0
+ */
+public class PipedConnection implements XConnection {
+    /**
+     * When set to true, enables various debugging output.
+     */
+    public static final boolean DEBUG = false;
+
+    /**
+     * The name of the service, the <code>JavaLoader</code> accesses this through
+     * reflection.
+     */
+    private static final String __serviceName = "com.sun.star.connection.PipedConnection";
+
+    /**
+     * Gives a factory for creating the service.
+     * <p>This method is called by the <code>JavaLoader</code>.</p>
+     *
+     * @param   implName     the name of the implementation for which a service is desired.
+     * @param   multiFactory the service manager to be uses if needed.
+     * @param   regKey       the registryKey.
+     * @return  returns a <code>XSingleServiceFactory</code> for creating the component.
+     *
+     * @see                  com.sun.star.comp.loader.JavaLoader
+     */
+    public static XSingleServiceFactory __getServiceFactory(String implName,
+                                                          XMultiServiceFactory multiFactory,
+                                                          XRegistryKey regKey)
+    {
+        XSingleServiceFactory xSingleServiceFactory = null;
+
+        if (implName.equals(PipedConnection.class.getName()) )
+            xSingleServiceFactory = FactoryHelper.getServiceFactory(PipedConnection.class,
+                                                                    __serviceName,
+                                                                    multiFactory,
+                                                                    regKey);
+
+        return xSingleServiceFactory;
+    }
+
+    /**
+     * The amount of time in milliseconds, to wait to see check the buffers.
+     */
+    protected static final int __waitTime = 10000;
+
+    protected byte             _buffer[] = new byte[4096];
+    protected int              _in,
+                               _out;
+    protected boolean          _closed;
+    protected PipedConnection  _otherSide;
+
+    /**
+     * Constructs a new <code>PipedConnection</code>, sees if there is another
+     * side, which it should be connected to.
+     *
+     * @param    args   Another side could be in index 0.
+     */
+    public PipedConnection(Object args[]) throws com.sun.star.uno.RuntimeException {
+        if (DEBUG) System.err.println("##### " + getClass().getName() + " - instantiated");
+
+        _otherSide = (args.length == 1) ? (PipedConnection)args[0] : null;
+        if(_otherSide != null) {
+            if(_otherSide == this)
+                throw new RuntimeException("can not connect to myself");
+
+            _otherSide._otherSide = this;
+        }
+    }
+
+    /**
+     * This is a private method, used to communicate internal in the pipe.
+     */
+    private synchronized void receive(byte aData[]) throws com.sun.star.io.IOException {
+        int bytesWritten = 0;
+
+        if(DEBUG) System.err.println("##### PipedConnection.receive - bytes:" + aData.length + " at:" + _out);
+
+        while(bytesWritten < aData.length) {
+            // wait until it is not full anymore
+            while(_out == (_in - 1) || (_in == 0 && _out == _buffer.length - 1)) {
+                try {
+                    notify(); // the buffer is full, signal it
+
+                    wait(__waitTime);
+                }
+                catch(InterruptedException interruptedException) {
+                    throw new com.sun.star.io.IOException(interruptedException);
+                }
+            }
+
+            if(_closed) throw new com.sun.star.io.IOException("connection has been closed");
+
+            int bytes  ;
+
+            if(_out < _in) {
+                bytes = Math.min(aData.length - bytesWritten, _in - _out - 1);
+
+                System.arraycopy(aData, bytesWritten, _buffer, _out, bytes);
+            }
+            else {
+                if(_in > 0){
+                    bytes = Math.min(aData.length - bytesWritten, _buffer.length - _out);
+                }
+                else {
+                    bytes = Math.min(aData.length - bytesWritten, _buffer.length - _out - 1);
+                }
+
+                System.arraycopy(aData, bytesWritten, _buffer, _out, bytes);
+            }
+
+            bytesWritten += bytes;
+            _out += bytes;
+            if(_out >= _buffer.length)
+                _out = 0;
+        }
+    }
+
+    /**
+     * Read the required number of bytes.
+     *
+     * @param   aReadBytes   the out parameter, where the bytes have to be placed.
+     * @param   nBytesToRead the number of bytes to read.
+     * @return  the number of bytes read.
+     *
+     * @see     com.sun.star.connection.XConnection#read
+     */
+    public synchronized int read(/*OUT*/byte[][] aReadBytes, int nBytesToRead) throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException {
+        aReadBytes[0] = new byte[nBytesToRead];
+
+        if(DEBUG) System.err.println("##### PipedConnection.read - bytes:" + nBytesToRead + " at:" + _in);
+
+        // loop while not all bytes read or when closed but there is still data
+        while(nBytesToRead > 0 && (_in != _out || !_closed)) {
+            while(_in == _out && !_closed) {
+                try {
+                    notify(); // the buffer is empty, signal it
+
+                    wait(__waitTime); // we wait for data or for the pipe to be closed
+                }
+                catch(InterruptedException interruptedException) {
+                    throw new com.sun.star.io.IOException(interruptedException);
+                }
+            }
+
+            if(_in < _out) {
+                int bytes = Math.min(nBytesToRead, _out - _in);
+
+                System.arraycopy(_buffer, _in, aReadBytes[0], aReadBytes[0].length - nBytesToRead, bytes);
+
+                nBytesToRead -= bytes;
+                _in += bytes;
+            }
+            else if(_in > _out) {
+                int bytes = Math.min(nBytesToRead, _buffer.length - _in);
+
+                System.arraycopy(_buffer, _in, aReadBytes[0], aReadBytes[0].length - nBytesToRead, bytes);
+
+                nBytesToRead -= bytes;
+                _in += bytes;
+                if(_in >= _buffer.length)
+                    _in = 0;
+            }
+        }
+
+        if(nBytesToRead > 0) { // not all bytes read
+            byte tmp[] = new byte[aReadBytes[0].length - nBytesToRead];
+            System.arraycopy(aReadBytes[0], 0, tmp, 0, tmp.length);
+
+            aReadBytes[0] = tmp;
+        }
+
+        return aReadBytes[0].length;
+    }
+
+    /**
+     * Write bytes.
+     *
+     * @param   aData the bytes to write.
+     * @see     com.sun.star.connection.XConnection#write
+     */
+    public void write(byte aData[]) throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException {
+        _otherSide.receive(aData);
+    }
+
+    /**
+     * Flushes the buffer, notifies if necessary the other side that new data has
+     * arrived.
+     *
+     * @see     com.sun.star.connection.XConnection#flush
+     */
+    public void flush() throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException {
+        synchronized(_otherSide) {
+            _otherSide.notify();
+        }
+    }
+
+    /**
+     * Closes the pipe.
+     *
+     * @see     com.sun.star.connection.XConnection#close()
+     */
+    public synchronized void close() throws com.sun.star.io.IOException, com.sun.star.uno.RuntimeException {
+        if(!_closed) {
+            _closed = true;
+
+            _otherSide.close();
+
+            notify();
+        }
+    }
+
+    /**
+     * Gives a description of this pipe.
+     *
+     * @return  the description.
+     * @see     com.sun.star.connection.XConnection#getDescription
+     */
+    public String getDescription() throws com.sun.star.uno.RuntimeException {
+        return getClass().getName();
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */