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

 *

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 *

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 * 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

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 *

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

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 *

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 */

/**

 * @test

 * @bug 8067747

 * @summary Verify the correct Filer behavior w.r.t. initial inputs

 *          (should throw FilerException when overwriting initial inputs).

 * @library /tools/lib /tools/javac/lib

 * @modules jdk.compiler/com.sun.tools.javac.api

 *          jdk.compiler/com.sun.tools.javac.main

 * @build toolbox.ToolBox toolbox.JavacTask toolbox.Task

 * @build OverwriteInitialInput JavacTestingAbstractProcessor

 * @run main OverwriteInitialInput

 */

import java.io.IOException;

import java.io.OutputStream;

import java.io.Writer;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.Set;

import javax.annotation.processing.FilerException;

import javax.annotation.processing.RoundEnvironment;

import javax.annotation.processing.SupportedOptions;

import javax.lang.model.element.TypeElement;

import javax.tools.StandardLocation;

import toolbox.JavacTask;

import toolbox.Task;

import toolbox.ToolBox;

@SupportedOptions({OverwriteInitialInput.EXPECT_EXCEPTION_OPTION,

                   OverwriteInitialInput.TEST_SOURCE

                  })

public class OverwriteInitialInput extends JavacTestingAbstractProcessor {

    public static final String EXPECT_EXCEPTION_OPTION = "exception";

    public static final String TEST_SOURCE = "testSource";

    @Override

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

        if (roundEnv.processingOver()) {

            if (processingEnv.getOptions().containsKey(EXPECT_EXCEPTION_OPTION)) {

                try (Writer w = processingEnv.getFiler().createSourceFile("Test").openWriter()) {

                    throw new AssertionError("Expected IOException not seen.");

                } catch (FilerException ex) {

                    //expected

                } catch (IOException ex) {

                    throw new IllegalStateException(ex);

                }

                try (OutputStream out = processingEnv.getFiler().createClassFile("Test").openOutputStream()) {

                    throw new AssertionError("Expected IOException not seen.");

                } catch (FilerException ex) {

                    //expected

                } catch (IOException ex) {

                    throw new IllegalStateException(ex);

                }

                if (processingEnv.getOptions().containsKey(TEST_SOURCE)) {

                    try (OutputStream out = processingEnv.getFiler().createResource(StandardLocation.SOURCE_OUTPUT, "", "Test.java").openOutputStream()) {

                        throw new AssertionError("Expected IOException not seen.");

                    } catch (FilerException ex) {

                        //expected

                    } catch (IOException ex) {

                        throw new IllegalStateException(ex);

                    }

                } else {

                    try (OutputStream out = processingEnv.getFiler().createResource(StandardLocation.CLASS_OUTPUT, "", "Test2.class").openOutputStream()) {

                        throw new AssertionError("Expected IOException not seen.");

                    } catch (FilerException ex) {

                        //expected

                    } catch (IOException ex) {

                        throw new IllegalStateException(ex);

                    }

                }

            } else {

                try (Writer w = processingEnv.getFiler().createSourceFile("Test").openWriter()) {

                    w.append("public class Test {}");

                } catch (IOException ex) {

                    throw new IllegalStateException(ex);

                }

                try (OutputStream out = processingEnv.getFiler().createClassFile("Test2").openOutputStream()) {

                    try (ToolBox.MemoryFileManager mfm = new ToolBox.MemoryFileManager()) {

                        ToolBox tb = new ToolBox();

                        new JavacTask(tb)

                          .sources("public class Test2 {}")

                          .fileManager(mfm)

                          .run()

                          .writeAll();

                        out.write(mfm.getFileBytes(StandardLocation.CLASS_OUTPUT, "Test2"));

                    }

                } catch (IOException ex) {

                    throw new IllegalStateException(ex);

                }

            }

        }

        return false;

    }

    public static void main(String... args) throws IOException {

        new OverwriteInitialInput().run();

    }

    void run() throws IOException {

        run(Task.Mode.API);

        run(Task.Mode.CMDLINE);

    }

    void run(Task.Mode mode) throws IOException {

        ToolBox tb = new ToolBox();

        Path path = Paths.get("output");

        if (Files.isDirectory(path))

            tb.cleanDirectory(path);

        Files.deleteIfExists(path);

        tb.createDirectories(path);

        Path thisSource = Paths.get(System.getProperty("test.src"), "OverwriteInitialInput.java");

        new JavacTask(tb, mode).options("-processor", "OverwriteInitialInput",

                                        "-d", path.toString(),

                                        "-XDaccessInternalAPI=true")

                               .files(thisSource)

                               .run()

                               .writeAll();

        new JavacTask(tb, mode).options("-processor", "OverwriteInitialInput",

                                        "-d", path.toString(),

                                        "-A" + EXPECT_EXCEPTION_OPTION,

                                        "-A" + TEST_SOURCE,

                                        "-XDaccessInternalAPI=true")

                               .files(thisSource, path.resolve("Test.java"))

                               .run()

                               .writeAll();

        new JavacTask(tb, mode).options("-processor", "OverwriteInitialInput",

                                        "-classpath", path.toString(),

                                        "-processorpath", System.getProperty("test.class.path"),

                                        "-d", path.toString(),

                                        "-A" + EXPECT_EXCEPTION_OPTION,

                                        "-XDaccessInternalAPI=true")

                               .classes("Test", "Test2")

                               .run()

                               .writeAll();

    }

}