org.sonar.plugins.findbugs.FindbugsAntConverter.java Source code

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Here is the source code for org.sonar.plugins.findbugs.FindbugsAntConverter.java

Source

/*
 * Sonar, open source software quality management tool.
 * Copyright (C) 2008-2011 SonarSource
 * mailto:contact AT sonarsource DOT com
 *
 * Sonar is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * Sonar is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with Sonar; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */
package org.sonar.plugins.findbugs;

import org.apache.commons.lang.StringUtils;
import org.sonar.api.resources.Java;

public final class FindbugsAntConverter {

    private FindbugsAntConverter() {
    }

    /**
     * Convert the exclusion ant pattern to a java regexp accepted by findbugs
     * exclusion file
     *
     * @param exclusion ant pattern to convert
     * @return Exclusion pattern for findbugs
     */
    public static String antToJavaRegexpConvertor(String exclusion) {
        StringBuilder builder = new StringBuilder("~");
        int offset = 0;
        // First **/ or */ is optional
        if (exclusion.startsWith("**/")) {
            builder.append("(.*\\.)?");
            offset += 3;
        } else if (exclusion.startsWith("*/")) {
            builder.append("([^\\\\^\\s]*\\.)?");
            offset += 2;
        }
        for (String suffix : Java.SUFFIXES) {
            exclusion = StringUtils.removeEndIgnoreCase(exclusion, "." + suffix);
        }

        char[] array = exclusion.toCharArray();
        for (int i = offset; i < array.length; i++) {
            char c = array[i];
            if (c == '?') {
                builder.append('.');
            } else if (c == '*') {
                if (i + 1 < array.length && array[i + 1] == '*') {
                    builder.append(".*");
                    i++;
                } else {
                    builder.append("[^\\\\^\\s]*");
                }
            } else if (c == '/') {
                builder.append("\\.");
            } else {
                builder.append(c);
            }
        }
        return builder.toString();
    }
}