/*
* Copyright (c) 2002-2008 LWJGL Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions 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 'LWJGL' nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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package org.lwjgl.util.generator;
import java.io.File;
import java.io.FileFilter;
import java.util.Arrays;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import com.sun.mirror.apt.*;
import com.sun.mirror.declaration.AnnotationTypeDeclaration;
import com.sun.mirror.declaration.TypeDeclaration;
import static com.sun.mirror.util.DeclarationVisitors.*;
import static java.util.Collections.*;
/**
* Generator tool for creating the java classes and native code
* from an annotated template java interface.
*
* @author elias_naur <elias_naur@users.sourceforge.net>
* @version $Revision: 3430 $
* $Id: GeneratorProcessorFactory.java 3430 2010-10-04 17:04:46Z spasi $
*/
public class GeneratorProcessorFactory implements AnnotationProcessorFactory, RoundCompleteListener {
private static boolean first_round = true;
// Process any set of annotations
private static final Collection<String> supportedAnnotations =
unmodifiableCollection(Arrays.asList("*"));
private static final Collection<String> supportedOptions =
unmodifiableCollection(Arrays.asList("-Atypemap", "-Ageneratechecks", "-Acontextspecific"));
public Collection<String> supportedAnnotationTypes() {
return supportedAnnotations;
}
public Collection<String> supportedOptions() {
return supportedOptions;
}
public void roundComplete(RoundCompleteEvent event) {
first_round = false;
}
public AnnotationProcessor getProcessorFor(Set<AnnotationTypeDeclaration> atds, AnnotationProcessorEnvironment env) {
// Only process the initial types, not the generated ones
if ( first_round ) {
env.addListener(this);
return new GeneratorProcessor(env);
} else
return AnnotationProcessors.NO_OP;
}
private static class GeneratorProcessor implements AnnotationProcessor {
private final AnnotationProcessorEnvironment env;
GeneratorProcessor(AnnotationProcessorEnvironment env) {
this.env = env;
}
public void process() {
Map<String, String> options = env.getOptions();
String typemap_classname = null;
boolean generate_error_checks = options.containsKey("-Ageneratechecks");
boolean context_specific = options.containsKey("-Acontextspecific");
for ( String k : options.keySet() ) {
int delimiter = k.indexOf('=');
if ( delimiter != -1 ) {
if ( k.startsWith("-Atypemap") ) {
typemap_classname = k.substring(delimiter + 1);
}
}
}
if ( typemap_classname == null )
throw new RuntimeException("No TypeMap class name specified with -Atypemap=<class-name>");
TypeDeclaration lastFile = null;
try {
long generatorLM = getGeneratorLastModified();
TypeMap type_map = (TypeMap)(Class.forName(typemap_classname).newInstance());
for ( TypeDeclaration typedecl : env.getSpecifiedTypeDeclarations() ) {
lastFile = typedecl;
typedecl.accept(getDeclarationScanner(new GeneratorVisitor(env, type_map, generate_error_checks, context_specific, generatorLM), NO_OP));
}
} catch (Exception e) {
if ( lastFile == null )
throw new RuntimeException(e);
else
throw new RuntimeException("\n-- Failed to process template: " + lastFile.getQualifiedName() + " --", e);
}
}
/**
* Gets the time of the latest change on the Generator classes.
*
* @return time of the latest change
*/
private static long getGeneratorLastModified() {
long lastModified = getDirectoryLastModified("/bin/org/lwjgl/util/generator");
lastModified = Math.max(lastModified, getDirectoryLastModified("/bin/org/lwjgl/util/generator/openal"));
lastModified = Math.max(lastModified, getDirectoryLastModified("/bin/org/lwjgl/util/generator/opengl"));
lastModified = Math.max(lastModified, getDirectoryLastModified("/bin/org/lwjgl/util/generator/opencl"));
return lastModified;
}
private static long getDirectoryLastModified(final String path) {
final File pck = new File(System.getProperty("user.dir") + path);
if ( !pck.exists() || !pck.isDirectory() )
return Long.MAX_VALUE;
final File[] classes = pck.listFiles(new FileFilter() {
public boolean accept(final File pathname) {
return pathname.isFile() && pathname.getName().endsWith(".class");
}
});
if ( classes == null || classes.length == 0 )
return Long.MAX_VALUE;
long lastModified = 0;
for ( File clazz : classes ) {
long lm = clazz.lastModified();
if ( lastModified < lm )
lastModified = lm;
}
return lastModified;
}
}
}