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 
  24 package compiler.compilercontrol.share.processors;
  25 
  26 import compiler.compilercontrol.share.method.MethodDescriptor;
  27 import compiler.compilercontrol.share.scenario.CompileCommand;
  28 import jdk.test.lib.Asserts;
  29 import jdk.test.lib.process.OutputAnalyzer;
  30 
  31 import java.util.ArrayList;
  32 import java.util.Iterator;
  33 import java.util.List;
  34 import java.util.function.Consumer;
  35 import java.util.regex.Matcher;
  36 import java.util.regex.Pattern;
  37 import java.util.stream.Collectors;
  38 
  39 public class PrintDirectivesProcessor
  40         implements Consumer<List<OutputAnalyzer>> {
  41     private final List<CompileCommand> commands;
  42     private static final Pattern MATCH_PATTERN
  43             = Pattern.compile(" matching: (.*)");
  44 
  45     public PrintDirectivesProcessor(List<CompileCommand> commands) {
  46         this.commands = commands;
  47     }
  48 
  49     @Override
  50     public void accept(List<OutputAnalyzer> outputAnalyzers) {
  51         List<String> directives = new ArrayList<>();
  52         outputAnalyzers.forEach(outputAnalyzer ->
  53                 directives.addAll(getDirectives(outputAnalyzer)));
  54         List<String> expectedDirectives = commands.stream()
  55                 .map(cc -> cc.methodDescriptor)
  56                 .map(MethodDescriptor::getCanonicalString)
  57                 .collect(Collectors.toList());
  58 
  59         if (directives.size() != expectedDirectives.size()) {
  60             printDirectives(directives, expectedDirectives);
  61             throw new AssertionError(String.format("Different number of "
  62                     + "directives. Expected: %d, actual: %d",
  63                     expectedDirectives.size(), directives.size()));
  64         }
  65         for (int i = 0; i < directives.size(); i++) {
  66             if (!directives.get(i).equals(expectedDirectives.get(i))) {
  67                 printDirectives(directives, expectedDirectives);
  68                 throw new AssertionError(
  69                         String.format("Directives differ at %d, expected:%s%n",
  70                                 i, expectedDirectives.get(i)));
  71             }
  72         }
  73     }
  74 
  75     private List<String> getDirectives(OutputAnalyzer outputAnalyzer) {
  76         List<String> directives = new ArrayList<>();
  77         List<String> inputStrings = outputAnalyzer.asLines();
  78         Iterator<String> iterator = inputStrings.iterator();
  79         while (iterator.hasNext()) {
  80             String input = iterator.next();
  81             if (input.equals("Directive:")) {
  82                 Asserts.assertTrue(iterator.hasNext(), "inconsistent directive"
  83                         + "printed into the output");
  84                 String matchString = iterator.next();
  85                 Matcher matcher = MATCH_PATTERN.matcher(matchString);
  86                 Asserts.assertTrue(matcher.matches(), "Incorrect matching "
  87                         + "string in directive");
  88                 directives.add(matcher.group(1));
  89             }
  90         }
  91         return directives;
  92     }
  93 
  94     private void printDirectives(List<String> directives,
  95                                  List<String> expected) {
  96         System.err.println("Actual directives: " + directives);
  97         System.err.println("Expected directives: " + expected);
  98     }
  99 }