us.codecraft.webmagic.utils.ExtractorUtils Maven / Gradle / Ivy
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package us.codecraft.webmagic.utils;
import us.codecraft.webmagic.model.annotation.ExtractBy;
import us.codecraft.webmagic.selector.*;
import java.util.ArrayList;
import java.util.List;
/**
* Tools for annotation converting.
*
* @author [email protected]
* @since 0.2.1
*/
public class ExtractorUtils {
public static Selector getSelector(ExtractBy extractBy) {
String value = extractBy.value();
Selector selector;
switch (extractBy.type()) {
case Css:
selector = new CssSelector(value);
break;
case Regex:
selector = new RegexSelector(value);
break;
case XPath:
selector = new XpathSelector(value);
break;
case JsonPath:
selector = new JsonPathSelector(value);
break;
default:
selector = new XpathSelector(value);
}
return selector;
}
public static List getSelectors(ExtractBy[] extractBies) {
List selectors = new ArrayList();
if (extractBies == null) {
return selectors;
}
for (ExtractBy extractBy : extractBies) {
selectors.add(getSelector(extractBy));
}
return selectors;
}
}
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