/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug 7068437

 * @summary Filer.getResource(SOURCE_OUTPUT, ...) no longer works in JDK 7 w/o -s

 */

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.Writer;

import java.util.Arrays;

import java.util.Collections;

import java.util.Map;

import java.util.Set;

import javax.annotation.processing.AbstractProcessor;

import javax.annotation.processing.Filer;

import javax.annotation.processing.Messager;

import javax.annotation.processing.RoundEnvironment;

import javax.annotation.processing.SupportedAnnotationTypes;

import javax.annotation.processing.SupportedOptions;

import javax.annotation.processing.SupportedSourceVersion;

import javax.lang.model.SourceVersion;

import javax.lang.model.element.TypeElement;

import javax.tools.Diagnostic.Kind;

import javax.tools.JavaCompiler;

import javax.tools.JavaCompiler.CompilationTask;

import javax.tools.StandardLocation;

import javax.tools.ToolProvider;

public class T7068437 {

    public static void main(String[] args) throws Exception {

        new T7068437().run();

    }

    void run() throws Exception {

        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

        System.err.println("using " + compiler.getClass()

                + " from " + compiler.getClass().getProtectionDomain().getCodeSource());

        CompilationTask task = compiler.getTask(null, null, null,

                Collections.singleton("-proc:only"),

                Collections.singleton("java.lang.Object"),

                null);

        task.setProcessors(Collections.singleton(new Proc()));

        check("compilation", task.call());

        task = compiler.getTask(null, null, null,

                Arrays.asList("-proc:only", "-AexpectFile"),

                Collections.singleton("java.lang.Object"),

                null);

        task.setProcessors(Collections.singleton(new Proc()));

        check("compilation", task.call());

    }

    void check(String msg, boolean ok) {

        System.err.println(msg + ": " + (ok ? "ok" : "failed"));

        if (!ok)

            throw new AssertionError(msg);

    }

    @SupportedAnnotationTypes("*")

    @SupportedOptions("expectFile")

    private static class Proc extends AbstractProcessor {

        int count;

        @Override

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

            if (roundEnv.processingOver() || count++ > 0) {

                return false;

            }

            Filer filer = processingEnv.getFiler();

            Messager messager = processingEnv.getMessager();

            Map<String, String> options = processingEnv.getOptions();

                System.err.println(options);

            boolean expectFile = options.containsKey("expectFile");

            System.err.println("running Proc: expectFile=" + expectFile);

            boolean found;

            try {

                messager.printMessage(Kind.NOTE, "found previous content of length " +

                        filer.getResource(StandardLocation.SOURCE_OUTPUT, "p", "C.java").getCharContent(false).length());

                found = true;

                messager.printMessage(Kind.NOTE, "not previously there");

                found = false;

            } catch (IOException x) {

                messager.printMessage(Kind.ERROR, "while reading: " + x);

                found = false;

            }

            if (expectFile && !found) {

                messager.printMessage(Kind.ERROR, "expected file but file not found");

            }

            try {

                Writer w = filer.createSourceFile("p.C").openWriter();

                w.write("/* hello! */ package p; class C {}");

                w.close();

                messager.printMessage(Kind.NOTE, "wrote new content");

            } catch (IOException x) {

                messager.printMessage(Kind.ERROR, "while writing: " + x);

            }

            return true;

        }

        @Override

        public SourceVersion getSupportedSourceVersion() {

            return SourceVersion.latest();

        }

    }

}