/*
*
* 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.airavata.workflow.model.graph.amazon;
import org.apache.airavata.workflow.model.graph.DataEdge;
import org.apache.airavata.workflow.model.graph.Edge;
import org.apache.airavata.workflow.model.graph.Graph;
import org.apache.airavata.workflow.model.graph.GraphException;
import org.apache.airavata.workflow.model.graph.GraphSchema;
import org.apache.airavata.workflow.model.graph.Node;
import org.apache.airavata.workflow.model.graph.Port;
import org.apache.airavata.workflow.model.graph.impl.NodeImpl;
import org.xmlpull.infoset.XmlElement;
/**
* The placeholder for Instance Nodes type. Using for easy checking
*
*/
public abstract class ResourceNode extends NodeImpl {
/**
*
* Constructs a ResourceNode.
*
* @param graph
*/
public ResourceNode(Graph graph) {
super(graph);
}
/**
* Constructs an InstanceNode.
*
* @param nodeElement
* @throws GraphException
*/
public ResourceNode(XmlElement nodeElement) throws GraphException {
super(nodeElement);
}
/**
*
* @see org.apache.airavata.workflow.model.graph.impl.NodeImpl#addConfigurationElement(org.xmlpull.infoset.XmlElement)
*/
@Override
protected XmlElement addConfigurationElement(XmlElement nodeElement) {
XmlElement configElement = nodeElement.addElement(GraphSchema.NS, GraphSchema.NODE_CONFIG_TAG);
return configElement;
}
/**
* @see org.apache.airavata.workflow.model.graph.impl.NodeImpl#edgeWasAdded(org.apache.airavata.workflow.model.graph.Edge)
*/
@Override
protected void edgeWasAdded(Edge edge) throws GraphException {
super.edgeWasAdded(edge);
if (edge instanceof DataEdge) {
Port toPort = edge.getToPort();
Node toNode = toPort.getNode();
Port fromPort = edge.getFromPort();
Node fromNode = fromPort.getNode();
if (!(toNode instanceof ResourceNode && fromNode instanceof ResourceNode)) {
throw new GraphException("Cannot connect Resource Node to other type of nodes");
}
}
}
}