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yacy_search_server/htroot/xml/snippet.java

67 lines
2.8 KiB

package xml;
import java.net.MalformedURLException;
import java.util.Set;
import java.util.TreeSet;
import de.anomic.http.httpHeader;
import de.anomic.plasma.plasmaURL;
import de.anomic.kelondro.kelondroMSetTools;
import de.anomic.net.URL;
import de.anomic.plasma.plasmaCondenser;
import de.anomic.plasma.plasmaSearchQuery;
import de.anomic.plasma.plasmaSnippetCache;
import de.anomic.plasma.plasmaSwitchboard;
import de.anomic.server.serverObjects;
import de.anomic.server.serverSwitch;
public class snippet {
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) throws MalformedURLException {
// return variable that accumulates replacements
plasmaSwitchboard switchboard = (plasmaSwitchboard) env;
serverObjects prop = new serverObjects();
// getting url
String urlString = post.get("url", "");
URL url = new URL(urlString);
// if 'remove' is set to true, then RWI references to URLs that do not have the snippet are removed
boolean remove = post.get("remove", "false").equals("true");
// boolean line_end_with_punctuation
boolean pre = post.get("pre", "false").equals("true");
String querystring = post.get("search", "").trim();
if ((querystring.length() > 2) && (querystring.charAt(0) == '"') && (querystring.charAt(querystring.length() - 1) == '"')) {
querystring = querystring.substring(1, querystring.length() - 1).trim();
}
final TreeSet query = plasmaSearchQuery.cleanQuery(querystring);
// filter out stopwords
final TreeSet filtered = kelondroMSetTools.joinConstructive(query, plasmaSwitchboard.stopwords);
if (filtered.size() > 0) {
kelondroMSetTools.excludeDestructive(query, plasmaSwitchboard.stopwords);
}
// find snippet
Set queryHashes = plasmaCondenser.words2hashes(query);
plasmaSnippetCache.Snippet snippet = switchboard.snippetCache.retrieveSnippet(url, queryHashes, true, pre, 260, 10000);
prop.put("status",snippet.getSource());
if (snippet.getSource() < 11) {
//prop.put("text", (snippet.exists()) ? snippet.getLineMarked(queryHashes) : "unknown");
prop.put("text", (snippet.exists()) ? "<![CDATA["+snippet.getLineMarked(queryHashes)+"]]>" : "unknown");
} else {
String error = snippet.getError();
if ((remove) && (error.equals("no matching snippet found"))) {
switchboard.removeReferences(plasmaURL.urlHash(url), query);
}
prop.put("text", error);
}
prop.put("urlHash",plasmaURL.urlHash(url));
// return rewrite properties
return prop;
}
}