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Diffstat (limited to 'scripting/java/com/sun/star/script/framework/provider/java/StrictResolver.java')
-rwxr-xr-x | scripting/java/com/sun/star/script/framework/provider/java/StrictResolver.java | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/scripting/java/com/sun/star/script/framework/provider/java/StrictResolver.java b/scripting/java/com/sun/star/script/framework/provider/java/StrictResolver.java new file mode 100755 index 000000000000..8adb6e66e5e8 --- /dev/null +++ b/scripting/java/com/sun/star/script/framework/provider/java/StrictResolver.java @@ -0,0 +1,128 @@ +/************************************************************************* +* + * 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.script.framework.provider.java; + +import java.lang.reflect.*; +import com.sun.star.script.framework.log.LogUtils; + +/** + * A StrictResolver can be used to get a ScriptProxy object for a given + * ScriptDescriptor and Class. The StrictResolver is an implementation of + * the Resolver strategy. It will only return a ScriptProxy object if a + * method accepting all of the arguments specified in the ScriptDescriptor + * can be found in the Class. + * + * @author Tomas O'Connor + * @created August 2, 2002 + */ +public class StrictResolver implements Resolver +{ + /** + *Constructor for the StrictResolver object + */ + public StrictResolver() + { + LogUtils.DEBUG( this.getClass().getName() + " created" ); + } + + + /** + * Returns a ScriptProxy object for the given ScriptDescriptor and Class. + * Only a strict match will be returned ie. where all of the arguments in + * the given ScriptDescriptor match the types of the + * + * @param sd the ScriptDescriptor for which a ScriptProxy is required + * @param c the Class file in which to search for the method + * @return the ScriptProxy matching the criteria, or null if no match is found + */ + public ScriptProxy getProxy( ScriptDescriptor sd, Class c ) + throws NoSuchMethodException + { + Method m = null; + ScriptProxy sp = null; + + LogUtils.DEBUG( "StrictResolver.getProxy() for: " + sd.toString() ); + + try + { + m = resolveArguments( sd, c ); + } + catch ( ClassNotFoundException e ) + { + throw new NoSuchMethodException( "StrictResolver.getProxy: Cant find method: " + + sd.getMethodName() + ":" + e.getMessage() ); + } + catch ( NoSuchMethodException e ) + { + throw new NoSuchMethodException( "StrictResolver.getProxy: Cant find method: " + + sd.getMethodName() + ":" + e.getMessage() ); + } + + sp = new ScriptProxy( m ); + + int modifiers = m.getModifiers(); + if ( !Modifier.isStatic( modifiers ) ) + { + Object o; + try + { + o = c.newInstance(); + } + catch ( InstantiationException ie ) + { + throw new NoSuchMethodException( "getScriptProxy: Cant instantiate: " + + c.getName() ); + } + catch ( IllegalAccessException iae ) + { + throw new NoSuchMethodException( "getScriptProxy: Cant access: " + + c.getName() ); + } + sp.setTargetObject( o ); + } + + return sp; + } + + + /** + * Description of the Method + * + * @param sd Description of the Parameter + * @param c Description of the Parameter + * @return Description of the Return Value + * @exception ClassNotFoundException + * @exception NoSuchMethodException + */ + private Method resolveArguments( ScriptDescriptor sd, Class c ) + throws ClassNotFoundException, NoSuchMethodException + { + return c.getMethod( sd.getMethodName(), sd.getArgumentTypes() ); + } +} + |