/*
* Seldon -- open source prediction engine
* =======================================
* Copyright 2011-2015 Seldon Technologies Ltd and Rummble Ltd (http://www.seldon.io/)
*
**********************************************************************************************
*
* 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 io.seldon.importer.articles.dynamicextractors;
import java.util.regex.Pattern;
import org.apache.commons.lang3.StringUtils;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
//@formatter:off
// example config:
//{"attribute_detail_list":[
//{
// "name": "cat1",
// "is_required": true,
// "extractor_type": "UrlSectionByPattern",
// "extractor_args": ["http://.*?/(.*/).*"],
// "default_value": ""
//}
//]}
//@formatter:on
public class UrlSectionByPatternDynamicExtractor extends DynamicExtractor {
static Pattern pattern = null;
@Override
public String extract(AttributeDetail attributeDetail, String url, Document articleDoc) throws Exception {
String attrib_value = null;
if ((attributeDetail.extractor_args != null) && (attributeDetail.extractor_args.size() >= 1)) {
String regexSelector = attributeDetail.extractor_args.get(0);
pattern = Pattern.compile(regexSelector);
Matcher m = pattern.matcher(url);
if (m != null) {
if ( m.find() ) {
attrib_value = m.group(1);
}
}
}
return attrib_value;
}
}