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| -rw-r--r-- | src/classes/com/sun/opengl/impl/GLReflection.java | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/impl/GLReflection.java b/src/classes/com/sun/opengl/impl/GLReflection.java new file mode 100644 index 0000000..94e004f --- /dev/null +++ b/src/classes/com/sun/opengl/impl/GLReflection.java @@ -0,0 +1,114 @@ +/* + * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * - Redistribution of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistribution 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. + * + * Neither the name of Sun Microsystems, Inc. or the names of + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * This software is provided "AS IS," without a warranty of any kind. ALL + * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, + * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN + * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR + * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR + * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR + * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR + * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE + * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, + * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF + * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + * + * You acknowledge that this software is not designed or intended for use + * in the design, construction, operation or maintenance of any nuclear + * facility. + */ + +package com.sun.opengl.impl; + +import java.lang.reflect.*; +import javax.media.opengl.*; + +public final class GLReflection { + + public static final Constructor getConstructor(String clazzName, Class[] cstrArgTypes) { + Class factoryClass = null; + Constructor factory = null; + + try { + factoryClass = Class.forName(clazzName); + if (factoryClass == null) { + throw new GLException(clazzName + " not available"); + } + try { + factory = factoryClass.getDeclaredConstructor( cstrArgTypes ); + } catch(NoSuchMethodException nsme) { + throw new GLException("Constructor: '" + clazzName + "("+cstrArgTypes+")' not found"); + } + return factory; + } catch (Exception e) { + throw new GLException(e); + } + } + + public static final Constructor getConstructor(String clazzName) { + return getConstructor(clazzName, new Class[0]); + } + + public static final Object createInstance(String clazzName, Class[] cstrArgTypes, Object[] cstrArgs) { + Constructor factory = null; + + try { + factory = getConstructor(clazzName, cstrArgTypes); + return factory.newInstance( cstrArgs ) ; + } catch (Exception e) { + throw new GLException(e); + } + } + + public static final Object createInstance(String clazzName, Object[] cstrArgs) { + Class[] cstrArgTypes = new Class[cstrArgs.length]; + for(int i=0; i<cstrArgs.length; i++) { + cstrArgTypes[i] = cstrArgs[i].getClass(); + } + return createInstance(clazzName, cstrArgTypes, cstrArgs); + } + + public static final Object createInstance(String clazzName) { + return createInstance(clazzName, new Class[0], null); + } + + public static final boolean instanceOf(Object obj, String clazzName) { + Class clazz = obj.getClass(); + do { + if(clazz.getName().equals(clazzName)) { + return true; + } + clazz = clazz.getSuperclass(); + } while (clazz!=null); + return false; + } + + public static final boolean implementationOf(Object obj, String faceName) { + Class[] clazzes = obj.getClass().getInterfaces(); + for(int i=clazzes.length-1; i>=0; i--) { + Class face = clazzes[i]; + if(face.getName().equals(faceName)) { + return true; + } + } + return false; + } + +} + |