org.slf4j.migrator.line.LineConverter Maven / Gradle / Ivy
/**
* Copyright (c) 2004-2011 QOS.ch
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
package org.slf4j.migrator.line;
import java.util.Arrays;
import java.util.Iterator;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class LineConverter {
final RuleSet ruleSet;
boolean atLeastOneMatchOccured = false;
public LineConverter(RuleSet ruleSet) {
this.ruleSet = ruleSet;
}
/**
* Check if the specified text is matching some conversions rules.
* If a rule matches, ask for line replacement.
*
* In case no rule can be applied, then the input text is
* returned without change.
*
* @param text
* @return String
*/
public String[] getReplacement(String text) {
ConversionRule conversionRule;
Pattern pattern;
Matcher matcher;
Iterator conversionRuleIterator = ruleSet.iterator();
String additionalLine = null;
while (conversionRuleIterator.hasNext()) {
conversionRule = conversionRuleIterator.next();
pattern = conversionRule.getPattern();
matcher = pattern.matcher(text);
if (matcher.find()) {
// System.out.println("matching " + text);
atLeastOneMatchOccured = true;
String replacementText = conversionRule.replace(matcher);
text = matcher.replaceAll(replacementText);
if (conversionRule.getAdditionalLine() != null) {
additionalLine = conversionRule.getAdditionalLine();
}
}
}
if (additionalLine == null) {
return new String[] { text };
} else {
return new String[] { text, additionalLine };
}
}
public String getOneLineReplacement(String text) {
String[] r = getReplacement(text);
if (r.length != 1) {
throw new IllegalStateException("Expecting a single string but got " + Arrays.toString(r));
} else {
return r[0];
}
}
public boolean atLeastOneMatchOccured() {
return atLeastOneMatchOccured;
}
}