/*

 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.

 * 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 7027157

 * @summary Project Coin: javac warnings for AutoCloseable.close throwing InterruptedException

 */

import com.sun.source.util.JavacTask;

import java.net.URI;

import java.util.Arrays;

import javax.tools.Diagnostic;

import javax.tools.JavaCompiler;

import javax.tools.JavaFileObject;

import javax.tools.SimpleJavaFileObject;

import javax.tools.StandardJavaFileManager;

import javax.tools.ToolProvider;

public class InterruptedExceptionTest {

    enum XlintOption {

        NONE("none"),

        TRY("try");

        String opt;

        XlintOption(String opt) {

            this.opt = opt;

        }

        String getXlintOption() {

            return "-Xlint:" + opt;

        }

    }

    enum SuppressLevel {

        NONE,

        SUPPRESS;

        String getSuppressAnno() {

            return this == SUPPRESS ?

                "@SuppressWarnings(\"try\")" :

                "";

        }

    }

    enum ClassKind {

        ABSTRACT_CLASS("abstract class", "implements", false),

        CLASS("class", "implements", true),

        INTERFACE("interface", "extends", false);

        String kindName;

        String extendsClause;

        boolean hasBody;

        private ClassKind(String kindName, String extendsClause, boolean hasBody) {

            this.kindName = kindName;

            this.extendsClause = extendsClause;

            this.hasBody = hasBody;

        }

        String getBody() {

            return hasBody ? "{}" : ";";

        }

    }

    enum ExceptionKind {

        NONE("", false),

        EXCEPTION("Exception", true),

        INTERRUPTED_EXCEPTION("InterruptedException", true),

        ILLEGAL_ARGUMENT_EXCEPTION("IllegalArgumentException", false),

        X("X", false);

        String exName;

        boolean shouldWarn;

        private ExceptionKind(String exName, boolean shouldWarn) {

            this.exName = exName;

            this.shouldWarn = shouldWarn;

        }

        String getThrowsClause() {

            return this == NONE ? "" : "throws " + exName;

        }

        String getTypeArguments(ExceptionKind decl) {

            return (decl != X || this == NONE) ? "" : "<" + exName + ">";

        }

        String getTypeParameter() {

            return this == X ? "<X extends Exception>" : "";

        }

    }

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

        //create default shared JavaCompiler - reused across multiple compilations

        JavaCompiler comp = ToolProvider.getSystemJavaCompiler();

        StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null);

        for (XlintOption xlint : XlintOption.values()) {

            for (SuppressLevel suppress_decl : SuppressLevel.values()) {

                for (SuppressLevel suppress_use : SuppressLevel.values()) {

                    for (ClassKind ck : ClassKind.values()) {

                        for (ExceptionKind ek_decl : ExceptionKind.values()) {

                            for (ExceptionKind ek_use : ExceptionKind.values()) {

                                new InterruptedExceptionTest(xlint, suppress_decl,

                                        suppress_use, ck, ek_decl, ek_use).run(comp, fm);

                            }

                        }

                    }

                }

            }

        }

    }

    XlintOption xlint;

    SuppressLevel suppress_decl;

    SuppressLevel suppress_use;

    ClassKind ck;

    ExceptionKind ek_decl;

    ExceptionKind ek_use;

    JavaSource source;

    DiagnosticChecker diagChecker;

    InterruptedExceptionTest(XlintOption xlint, SuppressLevel suppress_decl, SuppressLevel suppress_use,

            ClassKind ck, ExceptionKind ek_decl, ExceptionKind ek_use) {

        this.xlint = xlint;

        this.suppress_decl = suppress_decl;

        this.suppress_use = suppress_use;

        this.ck = ck;

        this.ek_decl = ek_decl;

        this.ek_use = ek_use;

        this.source = new JavaSource();

        this.diagChecker = new DiagnosticChecker();

    }

    class JavaSource extends SimpleJavaFileObject {

        String template = "#S1 #CK Resource#G #EC AutoCloseable {\n" +

                              "public void close() #TK #BK\n" +

                          "}\n" +

                          "class Test {\n" +

                              "#S2 <X> void test() {\n" +

                                 "try (Resource#PK r = null) { }\n" +

                              "}\n" +

                          "}\n";

        String source;

        public JavaSource() {

            super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);

            source = template.replace("#S1", suppress_decl.getSuppressAnno())

                    .replace("#S2", suppress_use.getSuppressAnno())

                    .replace("#CK", ck.kindName)

                    .replace("#EC", ck.extendsClause)

                    .replace("#G", ek_decl.getTypeParameter())

                    .replace("#TK", ek_decl.getThrowsClause())

                    .replace("#BK", ck.getBody())

                    .replace("#PK", ek_use.getTypeArguments(ek_decl));

        }

        @Override

        public CharSequence getCharContent(boolean ignoreEncodingErrors) {

            return source;

        }

    }

    void run(JavaCompiler tool, StandardJavaFileManager fm) throws Exception {

        JavacTask ct = (JavacTask)tool.getTask(null, fm, diagChecker,

                Arrays.asList(xlint.getXlintOption()), null, Arrays.asList(source));

        ct.analyze();

        check();

    }

    void check() {

        boolean shouldWarnDecl = ek_decl.shouldWarn &&

                xlint == XlintOption.TRY &&

                suppress_decl != SuppressLevel.SUPPRESS;

        boolean shouldWarnUse = (ek_decl.shouldWarn ||

                ((ek_use.shouldWarn || ek_use == ExceptionKind.NONE) && ek_decl == ExceptionKind.X)) &&

                xlint == XlintOption.TRY &&

                suppress_use != SuppressLevel.SUPPRESS;

        int foundWarnings = 0;

        if (shouldWarnDecl) foundWarnings++;

        if (shouldWarnUse) foundWarnings++;

        if (foundWarnings != diagChecker.tryWarnFound) {

            throw new Error("invalid diagnostics for source:\n" +

                source.getCharContent(true) +

                "\nOptions: " + xlint.getXlintOption() +

                "\nFound warnings: " + diagChecker.tryWarnFound +

                "\nExpected decl warning: " + shouldWarnDecl +

                "\nExpected use warning: " + shouldWarnUse);

        }

    }

    static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {

        int tryWarnFound;

        public void report(Diagnostic<? extends JavaFileObject> diagnostic) {

            if (diagnostic.getKind() == Diagnostic.Kind.WARNING &&

                    diagnostic.getCode().contains("try.resource.throws.interrupted.exc")) {

                tryWarnFound++;

            }

        }

    }

}