/**
* AnalyzerBeans
* Copyright (C) 2014 Neopost - Customer Information Management
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.eobjects.analyzer.beans.transform;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eobjects.analyzer.beans.api.Categorized;
import org.eobjects.analyzer.beans.api.Configured;
import org.eobjects.analyzer.beans.api.Description;
import org.eobjects.analyzer.beans.api.OutputColumns;
import org.eobjects.analyzer.beans.api.Transformer;
import org.eobjects.analyzer.beans.api.TransformerBean;
import org.eobjects.analyzer.beans.categories.StringManipulationCategory;
import org.eobjects.analyzer.data.InputColumn;
import org.eobjects.analyzer.data.InputRow;
@TransformerBean("Regex search/replace")
@Description("Search and replace text in String values using regular expressions.")
@Categorized({ StringManipulationCategory.class })
public class RegexSearchReplaceTransformer implements Transformer<String> {
@Configured(value = "Value", order = 1)
InputColumn<String> valueColumn;
@Configured(order = 2)
@Description("Regular expression pattern used for searching. Eg. 'Mr\\. (\\w+)'")
Pattern searchPattern;
@Configured(order = 3)
@Description("Regular expression pattern used for replacement. Eg. 'Mister $1'")
Pattern replacementPattern;
@Override
public OutputColumns getOutputColumns() {
return new OutputColumns(valueColumn.getName() + " (replaced '" + searchPattern.pattern() + "')");
}
@Override
public String[] transform(InputRow row) {
final String[] result = new String[1];
final String value = row.getValue(valueColumn);
if (value == null) {
return result;
}
final Matcher matcher = searchPattern.matcher(value);
final String replacedString = matcher.replaceAll(replacementPattern.pattern());
result[0] = replacedString;
return result;
}
}