/*
* #!
* Ontopia Classify
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* 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 net.ontopia.topicmaps.classify;
import java.util.Collections;
import net.ontopia.topicmaps.core.TopicIF;
import net.ontopia.topicmaps.core.TopicMapIF;
import net.ontopia.topicmaps.query.utils.QueryUtils;
import net.ontopia.topicmaps.query.core.QueryProcessorIF;
import net.ontopia.topicmaps.query.core.QueryResultIF;
import net.ontopia.utils.OntopiaRuntimeException;
/**
* INTERNAL:
*/
public class DefaultPlugin implements ClassifyPluginIF {
public boolean isClassifiable(TopicIF topic) {
if (topic == null) return false;
TopicMapIF tm = topic.getTopicMap();
if (tm == null) return false;
QueryProcessorIF qp = QueryUtils.getQueryProcessor(tm);
try {
QueryResultIF qr = qp.execute("using cl for i\"http://psi.ontopia.net/classify/\" " +
"select $CTYPE, $AT from " +
"instance-of(%TOPIC%, $CTYPE), " +
// "cl:classification-type($AT : cl:classified-association-type, $CTYPE : cl:classified-topic-type)," +
"type($A, $CT), subject-identifier($CT, \"http://psi.ontopia.net/classify/classification-type\"), " +
"association-role($A, $R1), type($R1, $CAT), subject-identifier($RT1, \"http://psi.ontopia.net/classify/classified-association-type\"), " +
"association-role($A, $R2), type($R2, $CTT), subject-identifier($RT2, \"http://psi.ontopia.net/classify/classified-topic-type\")," +
"role-player($R1, $AT), role-player($R2, $CTYPE) " +
"?", Collections.singletonMap("TOPIC", topic));
try {
return qr.next();
} finally {
qr.close();
}
} catch (Throwable e) {
throw new OntopiaRuntimeException(e);
}
}
public ClassifiableContentIF getClassifiableContent(TopicIF topic) {
return null;
}
}