/* Copyright (2007-2012) Schibsted ASA
* This file is part of Possom.
*
* Possom 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.
*
* Possom 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 Possom. If not, see <http://www.gnu.org/licenses/>.
*/
package no.sesat.search.view.velocity;
import java.io.IOException;
import java.io.Writer;
import java.util.List;
import java.util.Arrays;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.log4j.Logger;
import org.apache.velocity.context.InternalContextAdapter;
import org.apache.velocity.exception.MethodInvocationException;
import org.apache.velocity.exception.ParseErrorException;
import org.apache.velocity.exception.ResourceNotFoundException;
import org.apache.velocity.runtime.directive.Directive;
import org.apache.velocity.runtime.parser.node.Node;
/**
*
* A velocity directive to bold (query) word(s)
* param 1: text to replace
* param 2: query
*
* - "og" and "i" in the query should not be bolded.
* - Capitalized words should stay capitalized
* - remove "," and "!" from query words
* - independant word ("Billån" should not match lån)
*
* <code>
* #boldWord('leter du etter hotell i Paris' 'hotell i paris')
* returns the string: "leter du etter <b>hotell</b> i <b>Paris</b>"
* </code>
*
*
*
* @version $Id$
*/
public final class BoldWordDirective extends AbstractDirective {
private static final Logger LOG = Logger.getLogger(BoldWordDirective.class);
private static final String NAME = "boldWord";
public String getName() {
return NAME;
}
public int getType() {
return LINE;
}
public boolean render(
final InternalContextAdapter context,
final Writer writer,
final Node node)
throws IOException, ResourceNotFoundException, ParseErrorException, MethodInvocationException {
final int argCount = node.jjtGetNumChildren();
if (argCount != 1) {
String text = getArgument(context, node, 0);
final String uquery = getArgument(context, node, 1);
String query = org.apache.commons.lang.StringEscapeUtils.unescapeHtml(uquery);
if(text == null) {
writer.write("");
return true;
}
query = query.replaceAll("\"", "").replaceAll("'", "");
final List list = Arrays.asList(query.split("[\\p{Punct}\\p{Space}]+"));
for (int i=0;i<list.size();i++) {
if (!list.get(i).toString().toLowerCase().equals("og") && !list.get(i).toString().toLowerCase().equals("i")) {
final String regexPattern = "(\\s|^)("+list.get(i).toString()+")(?![a-z])";
final Pattern p = Pattern.compile(regexPattern, Pattern.CASE_INSENSITIVE);
final Matcher m = p.matcher(text);
text = m.replaceAll(" <b>$2</b>");
}
}
writer.write(text);
if (node.getLastToken().image.endsWith("\n")) {
writer.write('\n');
}
}else{
final String msg = '#' + getName() + " - wrong number of arguments";
LOG.error(msg);
return false;
}
return true;
}
}