/*
*
* * Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
* *
* * 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.
* *
* * For more information: http://www.orientechnologies.com
*
*/
package com.tinkerpop.blueprints.impls.orient;
import com.orientechnologies.common.util.OPair;
import com.orientechnologies.orient.core.db.record.OIdentifiable;
import com.orientechnologies.orient.core.iterator.OLazyWrapperIterator;
import com.orientechnologies.orient.core.record.ORecord;
import com.orientechnologies.orient.core.record.impl.ODocument;
import com.tinkerpop.blueprints.Direction;
import com.tinkerpop.blueprints.Vertex;
import java.util.Iterator;
public class OrientVertexIterator extends OLazyWrapperIterator<Vertex> {
private final OrientVertex vertex;
private final String[] iLabels;
private final OPair<Direction, String> connection;
public OrientVertexIterator(final OrientVertex orientVertex, final Iterator<?> iterator,
final OPair<Direction, String> connection, final String[] iLabels, final int iSize) {
super(iterator, iSize);
this.vertex = orientVertex;
this.connection = connection;
this.iLabels = iLabels;
}
@Override
public Vertex createWrapper(final Object iObject) {
if (iObject instanceof OrientVertex)
return (OrientVertex) iObject;
final ORecord rec = ((OIdentifiable) iObject).getRecord();
if (rec == null || !(rec instanceof ODocument))
return null;
final ODocument value = (ODocument) rec;
final OrientVertex v;
if (value.getSchemaClass().isSubClassOf(OrientVertexType.CLASS_NAME)) {
// DIRECT VERTEX
v = new OrientVertex(vertex.graph, value);
} else if (value.getSchemaClass().isSubClassOf(OrientEdgeType.CLASS_NAME)) {
// EDGE
if (vertex.settings.useVertexFieldsForEdgeLabels || OrientEdge.isLabeled(OrientEdge.getRecordLabel(value), iLabels))
v = new OrientVertex(vertex.graph, OrientEdge.getConnection(value, connection.getKey().opposite()));
else
v = null;
} else
throw new IllegalStateException("Invalid content found between connections:" + value);
return v;
}
public boolean filter(final Vertex iObject) {
return true;
}
}