1 /*

     2  * Copyright (c) 2015, 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 package common;

    24 

    25 import java.io.BufferedReader;

    26 import java.io.IOException;

    27 import java.io.StringReader;

    28 import java.util.ArrayList;

    29 import java.util.LinkedList;

    30 import java.util.List;

    31 import java.util.StringTokenizer;

    32 import jdk.test.lib.process.OutputAnalyzer;

    33 import jdk.test.lib.process.ProcessTools;

    34 

    35 /**

    36  * This class starts a process specified by the passed command line waits till

    37  * the process completes and returns the process exit code and stdout and stderr

    38  * output as ToolResults

    39  */

    40 class ToolRunner {

    41 

    42     private final List<String> cmdArgs = new LinkedList<>();

    43 

    44     ToolRunner(String cmdLine) {

    45         StringTokenizer st = new StringTokenizer(cmdLine);

    46         while (st.hasMoreTokens()) {

    47             cmdArgs.add(st.nextToken());

    48         }

    49     }

    50 

    51     /**

    52      * Starts the process, waits for the process completion and returns the

    53      * results

    54      *

    55      * @return process results

    56      * @throws Exception if anything goes wrong

    57      */

    58     ToolResults runToCompletion() throws Exception {

    59 

    60         ProcessBuilder pb = new ProcessBuilder(cmdArgs);

    61         OutputAnalyzer oa = ProcessTools.executeProcess(pb);

    62 

    63         return new ToolResults(oa.getExitValue(),

    64                 stringToList(oa.getStdout()),

    65                 stringToList(oa.getStderr()));

    66 

    67     }

    68 

    69     private static List<String> stringToList(String s) throws IOException {

    70         BufferedReader reader = new BufferedReader(new StringReader(s));

    71         List<String> strings = new ArrayList<>();

    72         for (String line = reader.readLine(); line != null; line = reader.readLine()) {

    73             strings.add(line);

    74         }

    75         reader.close();

    76         return strings;

    77     }

    78 }