Missed commit for this one.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271229 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/optional/metamata/MAuditParser.java

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+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2002 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.metamata;
+
+import java.util.Vector;
+import java.io.File;
+
+import org.apache.tools.ant.util.regexp.RegexpMatcher;
+import org.apache.tools.ant.util.regexp.RegexpMatcherFactory;
+import org.apache.tools.ant.util.StringUtils;
+
+/**
+ * Parser that will parse an output line of MAudit and return an
+ * interpreted violation if any.
+ *
+ * <p>
+ * MAudit is supposed to be configured with -fullpath so that it can
+ * correctly locate the file and attribute violation to the appropriate
+ * file (there might be several classes with the same name in
+ * different packages)
+ * </p>
+ *
+ * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
+ */
+final class MAuditParser {
+
+    /** pattern used by maudit to report the error for a file */
+    /** RE does not seems to support regexp pattern with comments so i'm stripping it*/
+    // (?:file:)?((?#filepath).+):((?#line)\\d+)\\s*:\\s+((?#message).*)
+    private final static String AUDIT_PATTERN = "(?:file:)?(.+):(\\d+)\\s*:\\s+(.*)";
+
+    /** matcher that will be used to extract the info from the line */
+    private final RegexpMatcher matcher;
+
+    MAuditParser(){
+        /** the matcher should be the Oro one. I don't know about the other one */
+        matcher = (new RegexpMatcherFactory()).newRegexpMatcher();
+        matcher.setPattern(AUDIT_PATTERN);
+    }
+
+    /**
+     * Parse a line obtained from MAudit.
+     * @param line a line obtained from the MAudit output.
+     * @return the violation corresponding to the displayed line
+     * or <tt>null</tt> if it could not parse it. (might be a
+     * message info or copyright or summary).
+     */
+    Violation parseLine(String line){
+        Vector matches = matcher.getGroups(line);
+        if (matches == null){
+            return null;
+        }
+        final String file = (String) matches.elementAt(1);
+        Violation violation = new Violation();
+        violation.file = file;
+        violation.line = (String) matches.elementAt(2);
+        violation.error = (String) matches.elementAt(3);
+        // remove the pathname from any messages and let the classname only.
+        final int pos = file.lastIndexOf(File.separatorChar);
+        if ((pos != -1) && (pos != file.length() - 1)) {
+            String filename = file.substring(pos + 1);
+            violation.error = StringUtils.replace(violation.error,
+                    "file:" + file, filename);
+        }
+        return violation;
+    }
+
+    /** the inner class used to report violation information */
+    final static class Violation {
+        String file;
+        String line;
+        String error;
+    }
+}