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Diffstat (limited to 'ridljar/com/sun/star/comp/loader/FactoryHelper.java')
| -rw-r--r-- | ridljar/com/sun/star/comp/loader/FactoryHelper.java | 502 |
1 files changed, 502 insertions, 0 deletions
diff --git a/ridljar/com/sun/star/comp/loader/FactoryHelper.java b/ridljar/com/sun/star/comp/loader/FactoryHelper.java new file mode 100644 index 000000000..fe56f594f --- /dev/null +++ b/ridljar/com/sun/star/comp/loader/FactoryHelper.java @@ -0,0 +1,502 @@ +/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * 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.comp.loader; + +import java.lang.reflect.Constructor; +import java.lang.reflect.Field; +import java.lang.reflect.InvocationTargetException; + +import com.sun.star.uno.XComponentContext; +import com.sun.star.lang.XInitialization; +import com.sun.star.lang.XMultiServiceFactory; +import com.sun.star.lang.XServiceInfo; +import com.sun.star.lang.XSingleServiceFactory; +import com.sun.star.lang.XSingleComponentFactory; +import com.sun.star.lang.XTypeProvider; +import com.sun.star.registry.XRegistryKey; +import com.sun.star.uno.UnoRuntime; +import com.sun.star.uno.Type; + + +/** + * The purpose of this class to help component implementation. + * + * <p>This class has default implementations for <code>getServiceFactory</code> + * and <code>writeRegistryServiceInfo</code>.</p> + * + * @see com.sun.star.lang.XMultiServiceFactory + * @see com.sun.star.lang.XServiceInfo + * @see com.sun.star.lang.XSingleServiceFactory + * @see com.sun.star.registry.XRegistryKey + * @since UDK1.0 + */ +public class FactoryHelper { + + private static final boolean DEBUG = false; + // the factory + protected static class Factory + implements XSingleServiceFactory, XSingleComponentFactory, XServiceInfo, + XTypeProvider { + + protected XMultiServiceFactory _xMultiServiceFactory; + protected XRegistryKey _xRegistryKey; + protected int _nCode; + protected Constructor<?> _constructor; + protected String _implName; + protected String _serviceName; + + protected Factory(Class<?> implClass, + String serviceName, + XMultiServiceFactory xMultiServiceFactory, + XRegistryKey xRegistryKey) + { + _xMultiServiceFactory = xMultiServiceFactory; + _xRegistryKey = xRegistryKey; + _implName = implClass.getName(); + _serviceName = serviceName; + + Constructor<?> constructors[] = implClass.getConstructors(); + for(int i = 0; i < constructors.length && _constructor == null; ++i) { + Class<?> parameters[] = constructors[i].getParameterTypes(); + + if(parameters.length == 3 + && parameters[0].equals(XComponentContext.class) + && parameters[1].equals(XRegistryKey.class) + && parameters[2].equals(Object[].class)) { + _nCode = 0; + _constructor = constructors[i]; + } + else if(parameters.length == 2 + && parameters[0].equals(XComponentContext.class) + && parameters[1].equals(XRegistryKey.class)) { + _nCode = 1; + _constructor = constructors[i]; + } + else if(parameters.length == 2 + && parameters[0].equals(XComponentContext.class) + && parameters[1].equals(Object[].class)) { + _nCode = 2; + _constructor = constructors[i]; + } + else if(parameters.length == 1 + && parameters[0].equals(XComponentContext.class)) { + _nCode = 3; + _constructor = constructors[i]; + } + // depr + else if(parameters.length == 3 + && parameters[0].equals(XMultiServiceFactory.class) + && parameters[1].equals(XRegistryKey.class) + && parameters[2].equals(Object[].class)) { + _nCode = 4; + _constructor = constructors[i]; + } + else if(parameters.length == 2 + && parameters[0].equals(XMultiServiceFactory.class) + && parameters[1].equals(XRegistryKey.class)) { + _nCode = 5; + _constructor = constructors[i]; + } + else if(parameters.length == 2 + && parameters[0].equals(XMultiServiceFactory.class) + && parameters[1].equals(Object[].class)) { + _nCode = 6; + _constructor = constructors[i]; + } + else if(parameters.length == 1 + && parameters[0].equals(XMultiServiceFactory.class)) { + _nCode = 7; + _constructor = constructors[i]; + } + else if(parameters.length == 1 + && parameters[0].equals(Object[].class)) { + _nCode = 8; + _constructor = constructors[i]; + } + else if(parameters.length == 0) { + _nCode = 9; + _constructor = constructors[i]; + } + } + + if(_constructor == null) // have not found a usable constructor + throw new com.sun.star.uno.RuntimeException(getClass().getName() + " can not find a usable constructor"); + } + + private final XMultiServiceFactory getSMgr( XComponentContext xContext ) + { + if (xContext != null) + { + return UnoRuntime.queryInterface( + XMultiServiceFactory.class, xContext.getServiceManager() ); + } + else + { + return _xMultiServiceFactory; + } + } + + // XComponentContext impl + + public Object createInstanceWithContext( + XComponentContext xContext ) + throws com.sun.star.uno.Exception + { + Object args[]; + switch (_nCode) + { + case 0: + args = new Object [] { xContext, _xRegistryKey, new Object[ 0 ] }; + break; + case 1: + args = new Object [] { xContext, _xRegistryKey }; + break; + case 2: + args = new Object [] { xContext, new Object[ 0 ] }; + break; + case 3: + args = new Object [] { xContext }; + break; + case 4: + args = new Object [] { getSMgr( xContext ), _xRegistryKey, new Object[ 0 ] }; + break; + case 5: + args = new Object [] { getSMgr( xContext ), _xRegistryKey }; + break; + case 6: + args = new Object [] { getSMgr( xContext ), new Object[ 0 ] }; + break; + case 7: + args = new Object [] { getSMgr( xContext ) }; + break; + case 8: + args = new Object [] { new Object[ 0 ] }; + break; + default: + args = new Object [ 0 ]; + break; + } + + try { + return _constructor.newInstance( args ); + } catch (InvocationTargetException invocationTargetException) { + Throwable targetException = invocationTargetException.getCause(); + + if (targetException instanceof java.lang.RuntimeException) + throw (java.lang.RuntimeException)targetException; + else if (targetException instanceof com.sun.star.uno.Exception) + throw (com.sun.star.uno.Exception)targetException; + else if (targetException instanceof com.sun.star.uno.RuntimeException) + throw (com.sun.star.uno.RuntimeException)targetException; + else + throw new com.sun.star.uno.Exception( targetException ); + } catch (IllegalAccessException illegalAccessException) { + throw new com.sun.star.uno.Exception( illegalAccessException ); + } catch (InstantiationException instantiationException) { + throw new com.sun.star.uno.Exception( instantiationException ); + } + } + + public Object createInstanceWithArgumentsAndContext( + Object rArguments[], XComponentContext xContext ) + throws com.sun.star.uno.Exception + { + Object args[]; + + boolean bInitCall = true; + switch (_nCode) + { + case 0: + args = new Object [] { xContext, _xRegistryKey, rArguments }; + bInitCall = false; + break; + case 1: + args = new Object [] { xContext, _xRegistryKey }; + break; + case 2: + args = new Object [] { xContext, rArguments }; + bInitCall = false; + break; + case 3: + args = new Object [] { xContext }; + break; + case 4: + args = new Object [] { getSMgr( xContext ), _xRegistryKey, rArguments }; + bInitCall = false; + break; + case 5: + args = new Object [] { getSMgr( xContext ), _xRegistryKey }; + break; + case 6: + args = new Object [] { getSMgr( xContext ), rArguments }; + bInitCall = false; + break; + case 7: + args = new Object [] { getSMgr( xContext ) }; + break; + case 8: + args = new Object [] { rArguments }; + bInitCall = false; + break; + default: + args = new Object [ 0 ]; + break; + } + + try { + Object instance = _constructor.newInstance( args ); + if (bInitCall) + { + XInitialization xInitialization = UnoRuntime.queryInterface( + XInitialization.class, instance ); + if (xInitialization != null) + { + xInitialization.initialize( rArguments ); + } + } + return instance; + } catch (InvocationTargetException invocationTargetException) { + Throwable targetException = invocationTargetException.getCause(); + + if (targetException instanceof java.lang.RuntimeException) + throw (java.lang.RuntimeException)targetException; + else if (targetException instanceof com.sun.star.uno.Exception) + throw (com.sun.star.uno.Exception)targetException; + else if (targetException instanceof com.sun.star.uno.RuntimeException) + throw (com.sun.star.uno.RuntimeException)targetException; + else + throw new com.sun.star.uno.Exception( targetException ); + } catch (IllegalAccessException illegalAccessException) { + throw new com.sun.star.uno.Exception( illegalAccessException ); + } catch (InstantiationException instantiationException) { + throw new com.sun.star.uno.Exception( instantiationException ); + } + } + + /** + * Creates an instance of the desired service. + * + * @return returns an instance of the desired service. + * @see com.sun.star.lang.XSingleServiceFactory + */ + public Object createInstance() + throws com.sun.star.uno.Exception, + com.sun.star.uno.RuntimeException + { + return createInstanceWithContext( null ); + } + + /** + * Creates an instance of the desired service. + * + * @param args the args given to the constructor of the service. + * @return returns an instance of the desired service. + * + * @see com.sun.star.lang.XSingleServiceFactory + */ + public Object createInstanceWithArguments(Object[] args) + throws com.sun.star.uno.Exception, + com.sun.star.uno.RuntimeException + { + return createInstanceWithArgumentsAndContext( args, null ); + } + + /** + * Gives the supported services. + * + * @return returns an array of supported services. + * @see com.sun.star.lang.XServiceInfo + */ + public String[] getSupportedServiceNames() throws com.sun.star.uno.RuntimeException { + return new String[]{_serviceName}; + } + + /** + * Gives the implementation name. + * + * @return returns the implementation name. + * @see com.sun.star.lang.XServiceInfo + */ + public String getImplementationName() throws com.sun.star.uno.RuntimeException { + return _implName; + } + + /** + * Indicates if the given service is supported. + * + * @return returns true if the given service is supported. + * @see com.sun.star.lang.XServiceInfo + */ + public boolean supportsService(String serviceName) throws com.sun.star.uno.RuntimeException { + String services[] = getSupportedServiceNames(); + + boolean found = false; + + for(int i = 0; i < services.length && !found; ++i) + found = services[i].equals(serviceName); + + return found; + } + + //XTypeProvider + public byte[] getImplementationId() + { + return new byte[0]; + } + //XTypeProvider + public com.sun.star.uno.Type[] getTypes() + { + Type[] t = new Type[] { + new Type(XSingleServiceFactory.class), + new Type(XSingleComponentFactory.class), + new Type(XServiceInfo.class), + new Type(XTypeProvider.class) + }; + return t; + } + + } + + /** + * Creates a factory for the given class. + * + * @param implClass the implementing class. + * @param multiFactory the given multi service factory (service manager). + * @param regKey the given registry key. + * @return returns a factory. + * + * @see com.sun.star.lang.XServiceInfo + * @deprecated as of UDK 1.0 + */ + @Deprecated + public static XSingleServiceFactory getServiceFactory(Class<?> implClass, + XMultiServiceFactory multiFactory, + XRegistryKey regKey) + { + XSingleServiceFactory xSingleServiceFactory = null; + + try { + Field serviceName ; + + try { + serviceName = implClass.getField("__serviceName"); + } catch(NoSuchFieldException noSuchFieldExceptio) { + serviceName = implClass.getField("serviceName"); // old style + } + + xSingleServiceFactory = new Factory(implClass, (String)serviceName.get(null), multiFactory, regKey); + } catch(NoSuchFieldException noSuchFieldException) { + System.err.println("##### FactoryHelper.getServiceFactory - exception:" + noSuchFieldException); + } catch(IllegalAccessException illegalAccessException) { + System.err.println("##### FactoryHelper.getServiceFactory - exception:" + illegalAccessException); + } + + return xSingleServiceFactory; + } + + /** + * Creates a factory for the given class. + * + * @param implClass the implementing class. + * @param serviceName the service name of the implementing class. + * @param multiFactory the given multi service factory (service manager). + * @param regKey the given registry key. + * + * @return returns a factory. + * @see com.sun.star.lang.XServiceInfo + */ + public static XSingleServiceFactory getServiceFactory(Class<?> implClass, + String serviceName, + XMultiServiceFactory multiFactory, + XRegistryKey regKey) + { + return new Factory(implClass, serviceName, multiFactory, regKey); + } + + /** + * Creates a factory for the given class. + * + * @param implClass the implementing class. + * @return returns a factory object. + */ + public static Object createComponentFactory( Class<?> implClass, String serviceName ) + { + return new Factory( implClass, serviceName, null, null ); + } + + /** + * Writes the registration data into the registry key. + * + * @param implName the name of the implementing class. + * @param serviceName the service name. + * @param regKey the given registry key. + * @return success. + * + * @see com.sun.star.lang.XServiceInfo + */ + public static boolean writeRegistryServiceInfo(String implName, String serviceName, XRegistryKey regKey) { + boolean result = false; + + try { + XRegistryKey newKey = regKey.createKey("/" + implName + "/UNO/SERVICES"); + + newKey.createKey(serviceName); + + result = true; + } + catch (Exception ex) { + System.err.println(">>>Connection_Impl.writeRegistryServiceInfo " + ex); + } + + return result; + } + + /** + * Writes the registration data into the registry key. + * + * <p>Several services are supported.</p> + * + * @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; + } + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |