/*

 * Copyright (c) 2013, 2017, 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 8005644

 * @summary set default max errs and max warns

 * @modules jdk.javadoc/com.sun.tools.doclets.standard

 */

import java.io.File;

import java.io.PrintWriter;

import java.io.StringWriter;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import com.sun.javadoc.DocErrorReporter;

import com.sun.javadoc.RootDoc;

public class MaxWarns {

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

        new MaxWarns().run();

    }

    void run() throws Exception {

        final int defaultMaxWarns = 100;

        File f = new File(System.getProperty("test.src"), "MaxWarns.java");

        String out = javadoc(f);

        check(out, defaultMaxWarns);

        if (errors > 0)

            throw new Exception(errors + " errors occurred");

    }

    String javadoc(File f) {

        StringWriter sw = new StringWriter();

        PrintWriter pw = new PrintWriter(sw);

        String[] args = { f.getPath() };

        int rc = com.sun.tools.javadoc.Main.execute("javadoc", pw, pw, pw,

                "MaxWarns$TestDoclet",

                getClass().getClassLoader(), args);

        pw.flush();

        return sw.toString();

    }

    private static final String WARNING_TEXT = "count ";

    void check(String out, int count) {

        System.err.println(out);

        Pattern warn = Pattern.compile("warning - " + WARNING_TEXT + "[0-9]+");

        Matcher m = warn.matcher(out);

        int n = 0;

        for (int start = 0; m.find(start); start = m.start() + 1) {

            n++;

        }

        if (n != count)

            error("unexpected number of warnings reported: " + n + "; expected: " + count);

        Pattern warnCount = Pattern.compile("(?ms).*^([0-9]+) warnings$.*");

        m = warnCount.matcher(out);

        if (m.matches()) {

            n = Integer.parseInt(m.group(1));

            if (n != count)

                error("unexpected number of warnings reported: " + n + "; expected: " + count);

        } else

            error("total count not found");

    }

    void error(String msg) {

        System.err.println("Error: " + msg);

        errors++;

    }

    int errors;

    public static class TestDoclet {

        public static boolean start(RootDoc root) {

            // generate 150 warnings

            for (int i = 1 ; i <= 150 ; i++) {

                root.printWarning(WARNING_TEXT + i);

            }

            return true;

        }

        public static int optionLength(String option) {

            return 0;

        }

        public static boolean validOptions(String[][] options, DocErrorReporter reporter) {

            return true;

        }

    }

}