//package pt.ist.struts.dispatch.annotation;
//
//import java.io.BufferedWriter;
//import java.io.IOException;
//import java.util.Set;
//
//import javax.annotation.processing.AbstractProcessor;
//import javax.annotation.processing.RoundEnvironment;
//import javax.annotation.processing.SupportedAnnotationTypes;
//import javax.annotation.processing.SupportedSourceVersion;
//import javax.lang.model.SourceVersion;
//import javax.lang.model.element.TypeElement;
//import javax.tools.Diagnostic;
//import javax.tools.FileObject;
//
//import com.sun.tools.javac.code.Symbol.ClassSymbol;
//
//@SupportedSourceVersion(SourceVersion.RELEASE_6)
//@SupportedAnnotationTypes({ "pt.ist.struts.dispatch.annotation.Mapping" })
//public class ActionAnnotationProcessor extends AbstractProcessor {
//
//    static final String LOG_FILENAME = ".actionAnnotationLog";
//    public static final String ENTRY_SEPERATOR = "\n";
//
//    @Override
//    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
//
//	// final Set<String> actions = new HashSet<String>();
//
//	final Set<ClassSymbol> elements = (Set<ClassSymbol>) roundEnv.getElementsAnnotatedWith(Mapping.class);
//	if (!elements.isEmpty()) {
//	    try {
//		// FileObject mappings = null;
//		// mappings =
//		// processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT,
//		// "", "mappings");
//		// if (mappings.getLastModified() != 0) {
//		// InputStream reader = null;
//		// try {
//		// reader = mappings.openInputStream();
//		// String[] current =
//		// IOUtils.toString(reader).split(ENTRY_SEPERATOR);
//		// actions.addAll(Arrays.asList(current));
//		// } finally {
//		// if (reader != null) {
//		// reader.close();
//		// }
//		// }
//		// }
//
//		for (final ClassSymbol classSymbol : elements) {
//		    FileObject loader = processingEnv.getFiler().createSourceFile(
//			    classSymbol.getQualifiedName() + "MappingLoader");
//		    BufferedWriter writer = null;
//		    try {
//			writer = new BufferedWriter(loader.openWriter());
//			writer.append("package " + classSymbol.getEnclosingElement().getQualifiedName() + ";\n");
//			writer.newLine();
//			writer.append("import javax.servlet.ServletContextEvent;\n");
//			writer.append("import javax.servlet.ServletContextListener;\n");
//			writer.append("import javax.servlet.annotation.WebListener;\n");
//			writer.newLine();
//			// writer.append("import pt.ist.struts.dispatch.annotation.Mapping;\n");
//			writer.append("import pt.ist.struts.dispatch.servlets.StrutsFrameworkInitializer;\n");
//			writer.newLine();
//			writer.append("@WebListener\n");
//			writer.append("public class " + classSymbol.getSimpleName()
//				+ "MappingLoader implements ServletContextListener {\n");
//			writer.newLine();
//			writer.append("    @Override\n");
//			writer.append("    public void contextInitialized(ServletContextEvent event) {\n");
//			writer.append("        StrutsFrameworkInitializer.registerMapping(" + classSymbol.getSimpleName()
//				+ ".class);\n");
//			writer.append("    }\n");
//			writer.newLine();
//			writer.append("    @Override\n");
//			writer.append("    public void contextDestroyed(ServletContextEvent event) {\n");
//			writer.append("    }\n");
//			writer.newLine();
//			writer.append("}\n");
//			writer.flush();
//		    } finally {
//			if (writer != null) {
//			    writer.close();
//			}
//		    }
//		    // actions.add(classSymbol.getQualifiedName().toString());
//		    // processingEnv.getMessager().printMessage(Diagnostic.Kind.NOTE,
//		    // "Mapping: " + classSymbol.getQualifiedName().toString());
//		}
//
//		// mappings =
//		// processingEnv.getFiler().createResource(StandardLocation.CLASS_OUTPUT,
//		// "", "mappings");
//		// OutputStream writer = null;
//		// try {
//		// writer = mappings.openOutputStream();
//		// IOUtils.write(StringUtils.join(actions, ENTRY_SEPERATOR),
//		// writer);
//		// } finally {
//		// if (writer != null) {
//		// writer.close();
//		// }
//		// }
//	    } catch (IOException e) {
//		processingEnv.getMessager().printMessage(Diagnostic.Kind.ERROR,
//			"Could not access mapping file while processing @Mapping annotation");
//		return false;
//	    }
//	}
//	return true;
//    }
// }