/*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */

package org.apidesign.livedb.impl;

import java.io.IOException;

import java.io.Writer;

import java.util.Set;

import javax.annotation.processing.AbstractProcessor;

import javax.annotation.processing.Processor;

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.Element;

import javax.lang.model.element.PackageElement;

import javax.lang.model.element.TypeElement;

import javax.tools.JavaFileObject;

import org.apidesign.livedb.LiveDB;

import org.openide.util.lookup.ServiceProvider;

/**

 *

 * @author Jaroslav Tulach <jtulach@netbeans.org>

 */

@SupportedAnnotationTypes("org.apidesign.livedb.LiveDB")

@SupportedSourceVersion(SourceVersion.RELEASE_6)

@ServiceProvider(service=Processor.class)

public class LiveDBProcessor extends AbstractProcessor {

    @Override

    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

        for (Element e : roundEnv.getElementsAnnotatedWith(LiveDB.class)) {

            LiveDB db = e.getAnnotation(LiveDB.class);

            PackageElement pe = (PackageElement)e;

            String clsName = pe.getQualifiedName().toString() + "." + db.classname();

            try {

                JavaFileObject src = processingEnv.getFiler().createSourceFile(clsName, pe);

                Writer w = src.openWriter();

                w.append("package " + pe.getQualifiedName() + ";\n");

                w.append("class " + db.classname() + " {\n");

                w.append("  public String " + db.field() + ";\n");

                w.append("}");

                w.close();

            } catch (IOException ex) {

                throw new IllegalStateException(ex);

            }

        }

        return true;

    }

}