/*******************************************************************************
* Copyright 2012 University of Southern California
*
* 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.
*
* This code was developed by the Information Integration Group as part
* of the Karma project at the Information Sciences Institute of the
* University of Southern California. For more information, publications,
* and related projects, please see: http://www.isi.edu/integration
******************************************************************************/
package edu.isi.karma.kr2rml.mapping;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import edu.isi.karma.kr2rml.PredicateObjectMap;
import edu.isi.karma.kr2rml.planning.TriplesMapGraphMerger;
public class KR2RMLMappingAuxillaryInformation {
private static Logger LOG = LoggerFactory.getLogger(KR2RMLMappingAuxillaryInformation.class);
private TriplesMapGraphMerger triplesMapGraphMerger;
private Map<String, List<String>> blankNodesColumnCoverage;
private Map<String, String> blankNodesUriPrefixMap;
private Map<String, List<PredicateObjectMap>> columnNameToPredObjMLinks;
private Map<String, String> subjectMapIdToTemplateAnchor;
public KR2RMLMappingAuxillaryInformation() {
this.triplesMapGraphMerger = new TriplesMapGraphMerger();
this.blankNodesUriPrefixMap = new HashMap<String, String>();
this.blankNodesColumnCoverage = new HashMap<String, List<String>>();
this.columnNameToPredObjMLinks = new HashMap<String, List<PredicateObjectMap>>();
this.subjectMapIdToTemplateAnchor = new HashMap<String, String>();
}
public TriplesMapGraphMerger getTriplesMapGraph() {
return triplesMapGraphMerger;
}
public Map<String, List<String>> getBlankNodesColumnCoverage() {
return blankNodesColumnCoverage;
}
public Map<String, String> getBlankNodesUriPrefixMap() {
return blankNodesUriPrefixMap;
}
public Map<String, List<PredicateObjectMap>> getColumnNameToPredObjLinks() {
return this.columnNameToPredObjMLinks;
}
public Map<String, String> getSubjectMapIdToTemplateAnchor() {
return subjectMapIdToTemplateAnchor;
}
//TODO move this
public static String findSubjectMapTemplateAnchor(
List<String> columnsCovered) {
int maxDepth = Integer.MIN_VALUE;
String anchor = null;
for(String column : columnsCovered)
{
int depth = 0;
depth = calculateColumnDepth(column, depth);
if(depth > maxDepth)
{
maxDepth = depth;
anchor = column;
}
}
LOG.debug("found anchor " + anchor + " at " + maxDepth);
return anchor;
}
private static int calculateColumnDepth(String column, int depth) {
if(column.charAt(0) == '[')
{
for(int i = 0; i < column.length(); i++)
{
if(column.charAt(i) == ',')
{
depth++;
}
}
}
return depth;
}
}