/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.oodt.cas.catalog.query.filter.time;
//JDK imports
import java.util.Collections;
import java.util.List;
import java.util.Vector;
//OODT imports
import org.apache.oodt.cas.catalog.metadata.TransactionalMetadata;
import org.apache.oodt.cas.catalog.query.filter.QueryFilter;
import org.apache.oodt.cas.catalog.query.filter.time.conv.AsciiSortableVersionConverter;
import org.apache.oodt.cas.catalog.query.filter.time.conv.VersionConverter;
//OODT imports
/**
* @author bfoster
* @version $Revision$
*
* <p>
* A query filter that allows user to filter results in a complex query
* <p>
*/
public class MetadataTimeEventQueryFilter extends QueryFilter<MetadataTimeEvent> {
private String startDateTimeMetKey, endDateTimeMetKey, priorityMetKey;
private VersionConverter converter;
public MetadataTimeEventQueryFilter() {
super();
this.converter = new AsciiSortableVersionConverter();
}
public String getStartDateTimeMetKey() {
return startDateTimeMetKey;
}
public void setStartDateTimeMetKey(String startDateTimeMetKey) {
this.startDateTimeMetKey = startDateTimeMetKey;
}
public String getEndDateTimeMetKey() {
return endDateTimeMetKey;
}
public void setEndDateTimeMetKey(String endDateTimeMetKey) {
this.endDateTimeMetKey = endDateTimeMetKey;
}
public String getPriorityMetKey() {
return priorityMetKey;
}
public void setPriorityMetKey(String priorityMetKey) {
this.priorityMetKey = priorityMetKey;
}
public VersionConverter getConverter() {
return converter;
}
public void setConverter(VersionConverter converter) {
if (converter != null)
this.converter = converter;
}
@Override
protected List<MetadataTimeEvent> metadataToFilterType(List<TransactionalMetadata> metadataList) {
List<MetadataTimeEvent> timeEvents = new Vector<MetadataTimeEvent>();
for (TransactionalMetadata transactionalMetadata : metadataList) {
double priority = 0;
if (this.getPriorityMetKey() != null)
priority = Double.parseDouble(transactionalMetadata.getMetadata().getMetadata(this.priorityMetKey));
long startTime = Long.parseLong(transactionalMetadata.getMetadata().getMetadata(this.startDateTimeMetKey));
String endTimeString = transactionalMetadata.getMetadata().getMetadata(this.endDateTimeMetKey);
long endTime = startTime;
if (endTimeString != null)
endTime = Long.parseLong(endTimeString);
timeEvents.add(new MetadataTimeEvent(startTime, endTime, priority, transactionalMetadata));
}
return Collections.unmodifiableList(timeEvents);
}
@Override
protected List<TransactionalMetadata> filterTypeToMetadata(List<MetadataTimeEvent> filterObjects) {
List<TransactionalMetadata> metadataList = new Vector<TransactionalMetadata>();
for (MetadataTimeEvent timeEvent : filterObjects)
metadataList.add(timeEvent.getTimeObject());
return Collections.unmodifiableList(metadataList);
}
}