1 /*

     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

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

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 8005644

    27  * @summary set default max errs and max warns

    28  */

    29 

    30 import java.io.File;

    31 import java.io.FileWriter;

    32 import java.io.IOException;

    33 import java.io.PrintWriter;

    34 import java.io.StringWriter;

    35 import java.util.regex.Matcher;

    36 import java.util.regex.Pattern;

    37 

    38 

    39 public class MaxWarns {

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

    41         new MaxWarns().run();

    42     }

    43 

    44     void run() throws Exception {

    45         final int defaultMaxWarns = 100;

    46         final int genWarns = 150;

    47         File f = genSrc(genWarns);

    48         String out = javadoc(f);

    49         check(out, defaultMaxWarns);

    50 

    51         if (errors > 0)

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

    53     }

    54 

    55     File genSrc(int count) throws IOException {

    56         StringBuilder sb = new StringBuilder();

    57         sb.append("package p;\n")

    58             .append("public class C {\n")

    59             .append("    /**\n");

    60         for (int i = 0; i < count; i++)

    61             sb.append("     * @param i").append(i).append(" does not exist!\n");

    62         sb.append("     */\n")

    63             .append("    public void m() { }\n")

    64             .append("}\n");

    65         File srcDir = new File("src");

    66         srcDir.mkdirs();

    67         File f = new File(srcDir, "C.java");

    68         try (FileWriter fw = new FileWriter(f)) {

    69             fw.write(sb.toString());

    70         }

    71         return f;

    72     }

    73 

    74     String javadoc(File f) {

    75         StringWriter sw = new StringWriter();

    76         PrintWriter pw = new PrintWriter(sw);

    77         String[] args = { "-d", "api", f.getPath() };

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

    79                 com.sun.tools.doclets.standard.Standard.class.getName(), args);

    80         pw.flush();

    81         return sw.toString();

    82     }

    83 

    84     void check(String out, int count) {

    85         System.err.println(out);

    86         Pattern warn = Pattern.compile("warning - @param argument \"i[0-9]+\" is not a parameter name");

    87         Matcher m = warn.matcher(out);

    88         int n = 0;

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

    90             n++;

    91         }

    92         if (n != count)

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

    94 

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

    96         m = warnCount.matcher(out);

    97         if (m.matches()) {

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

    99             if (n != count)

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

   101         } else

   102             error("total count not found");

   103     }

   104 

   105     void error(String msg) {

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

   107         errors++;

   108     }

   109 

   110     int errors;

   111 }

   112