summaryrefslogtreecommitdiffstats
path: root/odk/examples/DevelopersGuide/OfficeDev/Linguistic/OneInstanceFactory.java
diff options
context:
space:
mode:
Diffstat (limited to 'odk/examples/DevelopersGuide/OfficeDev/Linguistic/OneInstanceFactory.java')
-rw-r--r--odk/examples/DevelopersGuide/OfficeDev/Linguistic/OneInstanceFactory.java155
1 files changed, 155 insertions, 0 deletions
diff --git a/odk/examples/DevelopersGuide/OfficeDev/Linguistic/OneInstanceFactory.java b/odk/examples/DevelopersGuide/OfficeDev/Linguistic/OneInstanceFactory.java
new file mode 100644
index 000000000..5e1fdd60b
--- /dev/null
+++ b/odk/examples/DevelopersGuide/OfficeDev/Linguistic/OneInstanceFactory.java
@@ -0,0 +1,155 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * The Contents of this file are made available subject to the terms of
+ * the BSD license.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Sun Microsystems, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *************************************************************************/
+
+import com.sun.star.lang.XSingleComponentFactory;
+import com.sun.star.lang.XServiceInfo;
+import com.sun.star.lang.XInitialization;
+import com.sun.star.beans.XPropertySet;
+import com.sun.star.uno.XComponentContext;
+import com.sun.star.uno.XInterface;
+import com.sun.star.uno.UnoRuntime;
+
+import java.lang.reflect.Constructor;
+
+
+// purpose of this class is to provide a service factory that instantiates
+// the services only once (as long as this factory itself exists)
+// and returns only reference to that instance.
+
+
+public class OneInstanceFactory implements
+ XSingleComponentFactory,
+ XServiceInfo
+{
+ private final Class aMyClass;
+ private final String aSvcImplName;
+ private final String[] aSupportedSvcNames;
+ private XInterface xInstantiatedService;
+
+ public OneInstanceFactory(
+ Class aMyClass,
+ String aSvcImplName,
+ String[] aSupportedSvcNames )
+ {
+ this.aMyClass = aMyClass;
+ this.aSvcImplName = aSvcImplName;
+ this.aSupportedSvcNames = aSupportedSvcNames;
+ xInstantiatedService = null;
+ }
+
+
+ // XSingleComponentFactory
+
+ public Object createInstanceWithContext( XComponentContext context )
+ throws com.sun.star.uno.Exception,
+ com.sun.star.uno.RuntimeException
+ {
+ if (xInstantiatedService == null)
+ {
+ //!! the here used services all have exact one constructor!!
+ Constructor [] aCtor = aMyClass.getConstructors();
+ try {
+ xInstantiatedService = (XInterface) aCtor[0].newInstance( (Object[])null );
+ }
+ catch( Exception e ) {
+ }
+
+ //!! workaround for services not always being created
+ //!! via 'createInstanceWithArguments'
+ XInitialization xIni = UnoRuntime.queryInterface(
+ XInitialization.class, createInstanceWithContext(context));
+ if (xIni != null)
+ {
+ Object[] aArguments = new Object[]{ null, null };
+ if (context != null)
+ {
+ XPropertySet xPropSet = UnoRuntime.queryInterface(
+ XPropertySet.class,
+ context.getServiceManager().createInstanceWithContext(
+ "com.sun.star.linguistic2.LinguProperties",
+ context ) );
+ aArguments[0] = xPropSet;
+ }
+ xIni.initialize( aArguments );
+ }
+ }
+ return xInstantiatedService;
+ }
+
+ public Object createInstanceWithArgumentsAndContext( Object[] aArguments, XComponentContext context )
+ throws com.sun.star.uno.Exception,
+ com.sun.star.uno.RuntimeException
+ {
+ if (xInstantiatedService == null)
+ {
+ XInitialization xIni = UnoRuntime.queryInterface(
+ XInitialization.class, createInstanceWithContext( context ));
+ if (xIni != null)
+ xIni.initialize( aArguments );
+ }
+ return xInstantiatedService;
+ }
+
+
+
+ // XServiceInfo
+
+ public boolean supportsService( String aServiceName )
+ throws com.sun.star.uno.RuntimeException
+ {
+ boolean bFound = false;
+ int nCnt = aSupportedSvcNames.length;
+ for (int i = 0; i < nCnt && !bFound; ++i)
+ {
+ if (aServiceName.equals( aSupportedSvcNames[i] ))
+ bFound = true;
+ }
+ return bFound;
+ }
+
+ public String getImplementationName()
+ throws com.sun.star.uno.RuntimeException
+ {
+ return aSvcImplName;
+ }
+
+ public String[] getSupportedServiceNames()
+ throws com.sun.star.uno.RuntimeException
+ {
+ return aSupportedSvcNames;
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */