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Diffstat (limited to 'javaunohelper/com/sun/star/lib/uno/helper/Factory.java')
| -rw-r--r-- | javaunohelper/com/sun/star/lib/uno/helper/Factory.java | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/javaunohelper/com/sun/star/lib/uno/helper/Factory.java b/javaunohelper/com/sun/star/lib/uno/helper/Factory.java new file mode 100644 index 000000000000..33d107279633 --- /dev/null +++ b/javaunohelper/com/sun/star/lib/uno/helper/Factory.java @@ -0,0 +1,244 @@ +/************************************************************************* + * + * 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.lib.uno.helper; + +import com.sun.star.uno.XComponentContext; +import com.sun.star.lang.XSingleComponentFactory; +import com.sun.star.lang.XServiceInfo; +import com.sun.star.lang.XInitialization; +import com.sun.star.registry.XRegistryKey; + +import com.sun.star.uno.UnoRuntime; + + +/** Factory helper class supporting com.sun.star.lang.XServiceInfo and + com.sun.star.lang.XSingleComponentFactory. + + @attention + This factory implementation does not support lang.XSingleServiceFactory. +*/ +public class Factory + extends ComponentBase + implements XSingleComponentFactory, XServiceInfo +{ + private static final boolean DEBUG = false; + + /** Creates an object factory supporting interfaces + com.sun.star.lang.XSingleComponentFactory and + com.sun.star.lang.XServiceInfo + + @param impl_class + implementation class + @param supported_services + services implemented + @return + object factory + */ + public static XSingleComponentFactory createComponentFactory( + Class impl_class, String supported_services [] ) + throws com.sun.star.uno.RuntimeException + { + return new Factory( impl_class, supported_services ); + } + /** Writes component's implementation info to given registry key. + + @param impl_name + name of implementation + @param supported_services + supported services of implementation + @param xKey + registry key to write to + @return + success + */ + public static boolean writeRegistryServiceInfo( + String impl_name, String supported_services [], XRegistryKey xKey ) + { + try + { + XRegistryKey xNewKey = xKey.createKey( "/" + impl_name + "/UNO/SERVICES" ); + for ( int nPos = 0; nPos < supported_services.length; ++nPos ) + { + xNewKey.createKey( supported_services[ nPos ] ); + } + return true; + } + catch (com.sun.star.registry.InvalidRegistryException exc) + { + if (DEBUG) + { + System.err.println( + "##### " + Factory.class.getName() + ".writeRegistryServiceInfo -- exc: " + + exc.toString() ); + } + } + return false; + } + + //============================================================================================== + private String m_impl_name; + private String [] m_supported_services; + private Class m_impl_class; + private java.lang.reflect.Method m_method; + private java.lang.reflect.Constructor m_ctor; + + // ctor + private Factory( Class impl_class, String supported_services [] ) + throws com.sun.star.uno.RuntimeException + { + m_impl_name = impl_class.getName(); + m_supported_services = supported_services; + m_impl_class = impl_class; + m_method = null; + m_ctor = null; + + Class params [] = new Class [] { XComponentContext.class }; + + try + { + // seeking for "public static Object __create( XComponentContext )" + m_method = m_impl_class.getMethod( "__create", params ); + int mod = m_method.getModifiers(); + if (!m_method.getReturnType().equals( Object.class ) || + !java.lang.reflect.Modifier.isStatic( mod ) || + !java.lang.reflect.Modifier.isPublic( mod )) + { + m_method = null; + } + } + catch (Exception exc) + { + } + + if (null == m_method) + { + try + { + // ctor with context + m_ctor = m_impl_class.getConstructor( params ); + } + catch (Exception exc) + { + // else take default ctor + } + } + } + + //______________________________________________________________________________________________ + private final Object instantiate( XComponentContext xContext ) + throws com.sun.star.uno.Exception + { + try + { + if (DEBUG) + System.out.print( "instantiating " + m_impl_class.toString() + " using " ); + if (null != m_method) + { + if (DEBUG) + System.out.println( "__create( XComponentContext )..." ); + return m_method.invoke( null, new Object [] { xContext } ); + } + if (null != m_ctor) + { + if (DEBUG) + System.out.println( "ctor( XComponentContext )..." ); + return m_ctor.newInstance( new Object [] { xContext } ); + } + if (DEBUG) + System.out.println( "default ctor..." ); + return m_impl_class.newInstance(); // default ctor + } + catch (java.lang.reflect.InvocationTargetException exc) + { + Throwable targetException = exc.getTargetException(); + if (targetException instanceof java.lang.RuntimeException) + throw (java.lang.RuntimeException)targetException; + else if (targetException instanceof com.sun.star.uno.RuntimeException) + throw (com.sun.star.uno.RuntimeException)targetException; + else if (targetException instanceof com.sun.star.uno.Exception) + throw (com.sun.star.uno.Exception)targetException; + else + throw new com.sun.star.uno.Exception( targetException.toString(), this ); + } + catch (IllegalAccessException exc) + { + throw new com.sun.star.uno.RuntimeException( exc.toString(), this ); + } + catch (InstantiationException exc) + { + throw new com.sun.star.uno.RuntimeException( exc.toString(), this ); + } + } + // XSingleComponentFactory impl + //______________________________________________________________________________________________ + public final Object createInstanceWithContext( + XComponentContext xContext ) + throws com.sun.star.uno.Exception + { + return instantiate( xContext ); + } + //______________________________________________________________________________________________ + public final Object createInstanceWithArgumentsAndContext( + Object arguments [], XComponentContext xContext ) + throws com.sun.star.uno.Exception + { + Object inst = instantiate( xContext ); + XInitialization xInit = UnoRuntime.queryInterface( + XInitialization.class, inst ); + if (null == xInit) + { + throw new com.sun.star.lang.IllegalArgumentException( + "cannot pass arguments to component; no XInitialization implemented!", this, + (short)0 ); + } + xInit.initialize( arguments ); + return inst; + } + + // XServiceInfo impl + //______________________________________________________________________________________________ + public final String getImplementationName() + { + return m_impl_name; + } + //______________________________________________________________________________________________ + public final boolean supportsService( String service_name ) + { + for ( int nPos = 0; nPos < m_supported_services.length; ++nPos ) + { + if (m_supported_services[ nPos ].equals( service_name )) + return true; + } + return false; + } + //______________________________________________________________________________________________ + public final String [] getSupportedServiceNames() + { + return m_supported_services; + } +} + |