package org.codehaus.plexus.components.io.filemappers;
/*
* Copyright 2007 The Codehaus Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import javax.annotation.Nonnull;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Implementation of a file mapper, which uses regular expressions.
*/
public class RegExpFileMapper extends AbstractFileMapper {
/**
* The regexp mappers role-hint: "regexp".
*/
public static final String ROLE_HINT = "regexp";
private Pattern pattern;
private String replacement;
private boolean replaceAll;
/**
* Sets the regular expression pattern.
*/
public void setPattern(String pPattern)
{
pattern = Pattern.compile(pPattern);
}
/**
* Returns the regular expression pattern.
*/
public String getPattern()
{
return pattern == null ? null : pattern.pattern();
}
/**
* Sets the replacement string.
*/
public void setReplacement(String pReplacement)
{
replacement = pReplacement;
}
/**
* Returns the replacement string.
*/
public String getReplacement()
{
return replacement;
}
/**
* Returns, whether to replace the first occurrency of the pattern
* (default), or all.
*/
public boolean getReplaceAll()
{
return replaceAll;
}
/**
* Sets, whether to replace the first occurrency of the pattern
* (default), or all.
*/
public void setReplaceAll(boolean pReplaceAll)
{
replaceAll = pReplaceAll;
}
@Nonnull public String getMappedFileName( @Nonnull String pName)
{
final String name = super.getMappedFileName(pName);
if (pattern == null)
{
throw new IllegalStateException("The regular expression pattern has not been set.");
}
if (replacement == null)
{
throw new IllegalStateException("The pattern replacement string has not been set.");
}
final Matcher matcher = pattern.matcher(name);
if (!matcher.find())
{
return name;
}
if (!getReplaceAll())
{
return matcher.replaceFirst(replacement);
}
return matcher.replaceAll(replacement);
}
}