/**
* Copyright (c) 2002-2013 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.android.service;
import java.util.Iterator;
import org.neo4j.android.common.INodeIterator;
import org.neo4j.android.common.ParcelableError;
import org.neo4j.android.common.ParcelableNode;
import org.neo4j.android.service.util.ParcelableFactory;
import org.neo4j.graphdb.Node;
import android.os.RemoteException;
import android.util.Log;
/**
* Wrap a node iterator in a remotable object.
*/
public class NodeIteratorWrapper extends INodeIterator.Stub {
private static final String TAG = NodeIteratorWrapper.class.getSimpleName();
private Iterator<Node> iterator;
public NodeIteratorWrapper(Iterator<Node> iterator) {
this.iterator = iterator;
}
@Override
public ParcelableNode next(ParcelableError error) throws RemoteException {
try {
Node node = iterator.next();
return ParcelableFactory.makeParcelableNode(node);
} catch (Exception e) {
Log.e(TAG, "Error while iterating over nodes", e);
error.setError(Errors.NODE_ITERATOR, e.getMessage());
return null;
}
}
@Override
public boolean hasNext(ParcelableError error) throws RemoteException {
try {
return iterator.hasNext();
} catch (Exception e) {
Log.e(TAG, "Error while iterating over nodes", e);
error.setError(Errors.NODE_ITERATOR, e.getMessage());
return false;
}
}
}