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Diffstat (limited to 'ridljar/com/sun/star/lib/uno/environments/remote/IProtocol.java')
-rw-r--r-- | ridljar/com/sun/star/lib/uno/environments/remote/IProtocol.java | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/ridljar/com/sun/star/lib/uno/environments/remote/IProtocol.java b/ridljar/com/sun/star/lib/uno/environments/remote/IProtocol.java new file mode 100644 index 000000000000..c2ecbf9a09c2 --- /dev/null +++ b/ridljar/com/sun/star/lib/uno/environments/remote/IProtocol.java @@ -0,0 +1,93 @@ +/* -*- 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.lib.uno.environments.remote; + +import com.sun.star.lib.uno.typedesc.TypeDescription; +import java.io.IOException; + +/** + * An abstraction of remote bridge protocols. + * + * <p>A class implementing a given protocol <var>prot</var> must be named + * <code>com.sun.star.lib.uno.protocols.<var>prot</var>.<var>prot</var></code> + * and must have a public constructor that takes four arguments: The first + * argument of type <code>com.sun.star.uno.IBridge</code> must not be null. The + * second argument of type <code>String</code> represents any attributes; it may + * be null if there are no attributes. The third argument of type + * <code>java.io.InputStream</code> must not be null. The fourth argument of + * type <code>java.io.OutputStream</code> must not be null.</p> + */ +public interface IProtocol { + /** + * Initializes the connection. + * + * <p>This method must be called exactly once, after the + * <code>readMessage</code> loop has already been established.</p> + */ + void init() throws IOException; + + void terminate(); + + /** + * Reads a request or reply message. + * + * <p>Access to this method from multiple threads must be properly + * synchronized.</p> + * + * @return a non-null message; if the input stream is exhausted, a + * <code>java.io.IOException</code> is thrown instead. + */ + Message readMessage() throws IOException; + + /** + * Writes a request message. + * + * @param oid a non-null OID. + * @param type a non-null UNO type. + * @param function a non-null function (the name of a UNO interface method + * or attribute compatible with the given <code>type</code>, or either + * <code>"queryInterface"</code> or <code>"release"</code>). + * @param tid a non-null TID. + * @param arguments a list of UNO arguments compatible with the given + * <code>type</code> and <code>function</code>; may be null to represent + * an empty list. + * @return <code>true</code> if the request message is sent as a synchronous + * request. + */ + boolean writeRequest( + String oid, TypeDescription type, String function, ThreadId tid, + Object[] arguments) + throws IOException; + + /** + * Writes a reply message. + * + * @param exception <code>true</code> if the reply corresponds to a raised + * exception. + * @param tid a non-null TID. + * @param result if <code>exception</code> is <code>true</code>, a non-null + * UNO exception; otherwise, a UNO return value, which may be null to + * represent a <code>VOID</code> return value. + */ + void writeReply(boolean exception, ThreadId tid, Object result) + throws IOException; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |