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Diffstat (limited to 'jurt/com/sun/star/comp/connections/Implementation.java')
-rw-r--r-- | jurt/com/sun/star/comp/connections/Implementation.java | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/jurt/com/sun/star/comp/connections/Implementation.java b/jurt/com/sun/star/comp/connections/Implementation.java new file mode 100644 index 000000000000..466ea9741766 --- /dev/null +++ b/jurt/com/sun/star/comp/connections/Implementation.java @@ -0,0 +1,101 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +package com.sun.star.comp.connections; + +import com.sun.star.connection.ConnectionSetupException; +import com.sun.star.lang.XMultiServiceFactory; +import com.sun.star.uno.UnoRuntime; + +/** + * Helper class for <code>Acceptor</code> and <code>Connector</code>. + */ +final class Implementation { + /** + * Instantiate a service for a given connection type. + * + * @param factory the service factory used to instantiate the requested + * service. + * @param description has the following format: + * <code><var>type</var></code><!-- + * -->*(<code><var>key</var>=<var>value</var></code>). + * The specific service implementation is instantiated through the + * service factory as + * <code>com.sun.star.connection.<var>type</var>service<var></var><!-- + * --></code> + * (with <code><var>type</var></code> in lower case, and + * <code><var>service</var></code> either <code>Acceptor</code> or + * <code>Connector</code>).</p> + * @param serviceClass the IDL interface type for which to query the + * requested service. + * @param serviceType must be either <code>Acceptor</code> or + * <code>Connector</code>. + * @return an instance of the requested service. Never returns + * <code>null</code>. + * @throws ConnectionSetupException if the requested service can not be + * found, or cannot be instantiated. + */ + public static Object getConnectionService(XMultiServiceFactory factory, + String description, + Class serviceClass, + String serviceType) + throws ConnectionSetupException + { + int i = description.indexOf(','); + String type + = (i < 0 ? description : description.substring(0, i)).toLowerCase(); + Object service = null; + try { + service = UnoRuntime.queryInterface( + serviceClass, + factory.createInstance("com.sun.star.connection." + type + + serviceType)); + } catch (RuntimeException e) { + throw e; + } catch (com.sun.star.uno.Exception e) { + } + if (service == null) { + // As a fallback, also try to instantiate the service from the + // com.sun.star.lib.connections package structure: + try { + service + = Class.forName("com.sun.star.lib.connections." + type + + "." + type + serviceType).newInstance(); + } catch (ClassNotFoundException e) { + } catch (IllegalAccessException e) { + } catch (InstantiationException e) { + } + } + if (service == null) { + throw new ConnectionSetupException("no " + serviceType + " for " + + type); + } + return service; + } + + private Implementation() {} // do not instantiate +} |