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+/*************************************************************************
+ *
+ * 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
+}