/*
* Copyright (c) 2013 Technische Universitat Wien (TUW), Distributed Systems Group. http://dsg.tuwien.ac.at
*
* This work was partially supported by the European Commission in terms of the CELAR FP7 project (FP7-ICT-2011-8 #317790), http://www.celarcloud.eu/
*
* 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 at.ac.tuwien.dsg.cloud.elise.model.relationships;
import at.ac.tuwien.dsg.cloud.elise.model.runtime.UnitInstance;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;
import org.springframework.data.neo4j.annotation.EndNode;
import org.springframework.data.neo4j.annotation.GraphId;
import org.springframework.data.neo4j.annotation.RelationshipEntity;
import org.springframework.data.neo4j.annotation.StartNode;
/**
* Define a UnitInstance is hosted by which
*
* @author Duc-Hung LE
*/
@RelationshipEntity
public class HostOnRelationshipInstance {
@GraphId
private Long graphID;
@StartNode
protected UnitInstance from;
@EndNode
protected UnitInstance to;
public HostOnRelationshipInstance() {
}
public HostOnRelationshipInstance(UnitInstance from, UnitInstance to) {
this.from = from;
this.to = to;
}
public UnitInstance getFrom() {
return from;
}
public void setFrom(UnitInstance from) {
this.from = from;
}
public UnitInstance getTo() {
return to;
}
public void setTo(UnitInstance to) {
this.to = to;
}
public String toJson() {
try {
ObjectMapper mapper = new ObjectMapper();
return mapper.writeValueAsString(this);
} catch (IOException ex) {
ex.printStackTrace();
return null;
}
}
}