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Diffstat (limited to 'ridljar/com/sun/star/lib/uno/helper/Factory.java')
| -rw-r--r-- | ridljar/com/sun/star/lib/uno/helper/Factory.java | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/ridljar/com/sun/star/lib/uno/helper/Factory.java b/ridljar/com/sun/star/lib/uno/helper/Factory.java new file mode 100644 index 000000000..056d9549d --- /dev/null +++ b/ridljar/com/sun/star/lib/uno/helper/Factory.java @@ -0,0 +1,291 @@ +/* + * 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.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. + + <p> + Note: This factory implementation does not support lang.XSingleServiceFactory. + </p> +*/ +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 impl_name + implementation name + @param supported_services + services implemented + @return + object factory + + @since UDK 3.2.13 + */ + public static XSingleComponentFactory createComponentFactory( + Class impl_class, String impl_name, String supported_services [] ) + throws com.sun.star.uno.RuntimeException + { + return new Factory( impl_class, impl_name, supported_services ); + } + + /** Creates an object factory supporting interfaces + com.sun.star.lang.XSingleComponentFactory and + com.sun.star.lang.XServiceInfo + + The implementation name is the name of the implementation class. + + @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 createComponentFactory( + impl_class, impl_class.getName(), 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 final String m_impl_name; + private final String [] m_supported_services; + private final Class<?> m_impl_class; + private final java.lang.reflect.Method m_method; + private final java.lang.reflect.Constructor m_ctor; + + private Factory( + Class impl_class, String impl_name, String supported_services [] ) + throws com.sun.star.uno.DeploymentException + { + m_impl_name = impl_name; + m_supported_services = supported_services; + m_impl_class = impl_class; + + Class params [] = new Class [] { XComponentContext.class }; + + if (!java.lang.reflect.Modifier.isPublic( impl_class.getModifiers() )) + { + throw new com.sun.star.uno.DeploymentException("class " + impl_class + " is not public"); + } + + java.lang.reflect.Method tmpMethod = null; + try + { + // seeking for "public static Object __create( XComponentContext )" + tmpMethod = m_impl_class.getMethod( "__create", params ); + int mod = tmpMethod.getModifiers(); + if (!tmpMethod.getReturnType().equals( Object.class ) || + !java.lang.reflect.Modifier.isStatic( mod ) || + !java.lang.reflect.Modifier.isPublic( mod )) + { + tmpMethod = null; + } + } + catch (Exception exc) + { + } + m_method = tmpMethod; + + + java.lang.reflect.Constructor tmpCtor = null; + if (null == m_method) + { + try + { + // ctor with context + tmpCtor = m_impl_class.getConstructor( params ); + } + catch (Exception exc) + { + } + if (tmpCtor != null) + { + if (!java.lang.reflect.Modifier.isPublic( tmpCtor.getModifiers() )) + { + throw new com.sun.star.uno.DeploymentException("constructor with XComponentContext param for class " + impl_class + " is not public"); + } + } + else + { + // else take default ctor + java.lang.reflect.Constructor defaultCtor; + try + { + defaultCtor = m_impl_class.getConstructor(new Class[0]); + } + catch (Exception exc2) + { + throw new com.sun.star.uno.DeploymentException(exc2, "class " + impl_class + " has no means of creating it, cannot find a __create method or a useful constructor."); + } + if (!java.lang.reflect.Modifier.isPublic( defaultCtor.getModifiers() )) + { + throw new com.sun.star.uno.DeploymentException("default constructor for class " + impl_class + " is not public"); + } + } + } + m_ctor = tmpCtor; + } + + + private 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, targetException.getMessage(), this); + } + catch (IllegalAccessException exc) + { + throw new com.sun.star.uno.RuntimeException( exc, exc.getMessage(), this); + } + catch (InstantiationException exc) + { + throw new com.sun.star.uno.RuntimeException( exc, exc.getMessage(), 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; + } +} + |