1 | /*
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2 | * Copyright 2002,2004 The Apache Software Foundation
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3 | *
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4 | * Licensed under the Apache License, Version 2.0 (the "License");
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5 | * you may not use this file except in compliance with the License.
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6 | * You may obtain a copy of the License at
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7 | *
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8 | * http://www.apache.org/licenses/LICENSE-2.0
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9 | *
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10 | * Unless required by applicable law or agreed to in writing, software
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11 | * distributed under the License is distributed on an "AS IS" BASIS,
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 | * See the License for the specific language governing permissions and
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14 | * limitations under the License.
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15 | *
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16 | */
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17 | package org.apache.tools.ant.taskdefs.optional.metamata;
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18 |
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19 | import java.io.File;
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20 | import java.util.Vector;
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21 | import org.apache.tools.ant.util.StringUtils;
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22 | import org.apache.tools.ant.util.regexp.RegexpMatcher;
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23 | import org.apache.tools.ant.util.regexp.RegexpMatcherFactory;
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24 |
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25 | /**
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26 | * Parser that will parse an output line of MAudit and return an
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27 | * interpreted violation if any.
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28 | *
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29 | * <p>
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30 | * MAudit is supposed to be configured with -fullpath so that it can
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31 | * correctly locate the file and attribute violation to the appropriate
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32 | * file (there might be several classes with the same name in
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33 | * different packages)
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34 | * </p>
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35 | *
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36 | */
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37 | final class MAuditParser {
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38 |
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39 | /** pattern used by maudit to report the error for a file */
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40 | /** RE does not seems to support regexp pattern with comments so i'm stripping it*/
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41 | // (?:file:)?((?#filepath).+):((?#line)\\d+)\\s*:\\s+((?#message).*)
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42 | private static final String AUDIT_PATTERN = "(?:file:)?(.+):(\\d+)\\s*:\\s+(.*)";
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43 |
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44 | /** matcher that will be used to extract the info from the line */
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45 | private final RegexpMatcher matcher;
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46 |
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47 | MAuditParser() {
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48 | /** the matcher should be the Oro one. I don't know about the other one */
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49 | matcher = (new RegexpMatcherFactory()).newRegexpMatcher();
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50 | matcher.setPattern(AUDIT_PATTERN);
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51 | }
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52 |
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53 | /**
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54 | * Parse a line obtained from MAudit.
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55 | * @param line a line obtained from the MAudit output.
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56 | * @return the violation corresponding to the displayed line
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57 | * or <tt>null</tt> if it could not parse it. (might be a
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58 | * message info or copyright or summary).
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59 | */
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60 | Violation parseLine(String line) {
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61 | Vector matches = matcher.getGroups(line);
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62 | if (matches == null) {
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63 | return null;
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64 | }
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65 | final String file = (String) matches.elementAt(1);
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66 | Violation violation = new Violation();
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67 | violation.file = file;
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68 | violation.line = (String) matches.elementAt(2);
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69 | violation.error = (String) matches.elementAt(3);
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70 | // remove the pathname from any messages and let the classname only.
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71 | final int pos = file.lastIndexOf(File.separatorChar);
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72 | if ((pos != -1) && (pos != file.length() - 1)) {
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73 | String filename = file.substring(pos + 1);
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74 | violation.error = StringUtils.replace(violation.error,
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75 | "file:" + file, filename);
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76 | }
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77 | return violation;
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78 | }
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79 |
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80 | /** the inner class used to report violation information */
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81 | static final class Violation {
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82 | String file;
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83 | String line;
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84 | String error;
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85 | }
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86 | }
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