/*

 * Copyright (c) 2012, 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 7142086

 * @summary performance problem in Check.checkOverrideClashes(...)

 * @run main/timeout=10 T7142086

 */

import com.sun.source.util.JavacTask;

import java.net.URI;

import java.util.List;

import java.util.ArrayList;

import java.util.Locale;

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 T7142086 {

    final static int N_METHODS = 1000;

    static class TestClass extends SimpleJavaFileObject {

        String methTemplate = "abstract void m(A#N p);";

        String classTemplate = "abstract class Test { #M }";

        String source;

        public TestClass() {

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

            StringBuilder buf = new StringBuilder();

            for (int i = 0 ; i < N_METHODS ; i++) {

                buf.append(methTemplate.replace("#N", String.valueOf(i)));

                buf.append("\n");

            }

            source = classTemplate.replace("#M", buf.toString());

        }

        @Override

        public CharSequence getCharContent(boolean ignoreEncodingErrors) {

            return source;

        }

    }

    static class AnSource extends SimpleJavaFileObject {

        String classTemplate = "abstract class A#N { }";

        String source;

        public AnSource(int n) {

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

            source = classTemplate.replace("#N", String.valueOf(n));

        }

        @Override

        public CharSequence getCharContent(boolean ignoreEncodingErrors) {

            return source;

        }

    }

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

        ArrayList<JavaFileObject> sources = new ArrayList<>();

        for (int i = 0 ; i < N_METHODS ; i++) {

            sources.add(new AnSource(i));

        }

        sources.add(new TestClass());

        new T7142086().run(sources);

    }

    void run(List<JavaFileObject> sources) throws Exception {

        DiagnosticChecker dc = new DiagnosticChecker();

        JavaCompiler comp = ToolProvider.getSystemJavaCompiler();

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

        JavacTask ct = (JavacTask)comp.getTask(null, fm, dc,

                null, null, sources);

        ct.analyze();

    }

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

        boolean errorFound;

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

            if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {

                throw new AssertionError("unexpected diagnostic: " + diagnostic.getMessage(Locale.getDefault()));

            }

        }

    }

}