/* Copyright 2011 csvedit
*
* 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.
*/
package org.fhsolution.eclipse.plugins.csvedit.filter;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.fhsolution.eclipse.plugins.csvedit.model.CSVRow;
/**
* Filter the elements given a pattern.
*
* @author fhenri
*
*/
public class CSVTableFilter extends ViewerFilter {
private String searchString;
private Pattern searchPattern;
/**
* Build a pattern. we use pattern so we can make non case sensitive search
*
* @param s string to search
*/
public void setSearchText (String s, boolean isCaseSensitive) {
// Search must be a substring of the existing value
this.searchString = ".*" + s + ".*";
if (isCaseSensitive) {
searchPattern =
Pattern.compile(searchString);
} else {
searchPattern =
Pattern.compile(searchString, Pattern.CASE_INSENSITIVE);
}
}
/**
* @see org.eclipse.jface.viewers.ViewerFilter#select(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
*/
@Override
public boolean select (Viewer viewer, Object parentElement, Object element) {
if (searchString == null || searchString.length() == 0) {
return true;
}
// loop on all column of the current row to find matches
CSVRow row = (CSVRow) element;
for (String s:row.getEntries()) {
Matcher m = searchPattern.matcher(s);
if (m.matches()) {
return true;
}
}
return false;
}
}