/*
- * Copyright 2008 the original author or authors.
- *
+ * Copyright 2005-2010 the original author or authors.
+ *
* 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 org.wamblee.system.graph.component;
import org.wamblee.system.core.SystemAssemblyException;
import java.util.List;
-
/**
* Visitor that checks whether required and provided interfaces are matched
* appropriately:
- * <ul>
- * <li>Each required interface is connected to at most one
- * provided interface</li>
- * <li>Required interfaces that are not optional must be connected
- * to precisely one provided interface</li>
- * </ul>
- *
+ * <ul>
+ * <li>Each required interface is connected to at most one provided interface</li>
+ * <li>Required interfaces that are not optional must be connected to precisely
+ * one provided interface</li>
+ * </ul>
+ *
* @author Erik Brakkee
*/
public class CheckRequiredProvidedMultiplicityVisitor implements Visitor {
- /**
- * DOCUMENT ME!
- */
private Graph graph;
/**
* Creates a new CheckRequiredProvidedMultiplicityVisitor object.
- *
- * @param aGraph DOCUMENT ME!
+ *
*/
public CheckRequiredProvidedMultiplicityVisitor(Graph aGraph) {
graph = aGraph;
}
- /**
- * DOCUMENT ME!
- *
- * @param aEdge DOCUMENT ME!
- */
@Override
public void visitEdge(Edge aEdge) {
// Empty
}
- /**
- * DOCUMENT ME!
- *
- * @param aNode DOCUMENT ME!
- */
@Override
public void visitNode(Node aNode) {
if (aNode instanceof RequiredInterfaceNode) {
RequiredInterfaceNode required = (RequiredInterfaceNode) aNode;
- List<Edge> edges = graph.findOutgoing(aNode);
+ List<Edge> edges = graph.findOutgoing(aNode);
if (edges.size() > 1) {
- createDuplicateException("Multiple providers of required interface found",
- aNode, edges);
+ createDuplicateException(
+ "Multiple providers of required interface found", aNode,
+ edges);
}
if ((edges.size() == 0) && !required.getRequired().isOptional()) {
- throw new SystemAssemblyException(aNode
- + ": mandatpory required interface not provided by other components started earlier");
+ throw new SystemAssemblyException(
+ aNode +
+ ": mandatpory required interface not provided by other components started earlier");
}
} else if (aNode instanceof ExternalProvidedInterfaceNode) {
List<Edge> edges = graph.findOutgoing(aNode);
if (edges.size() > 1) {
- createDuplicateException("multiple internal matches for externally provided interface",
+ createDuplicateException(
+ "multiple internal matches for externally provided interface",
aNode, edges);
}
if (edges.size() == 0) {
- throw new SystemAssemblyException(aNode
- + ": external provided interface is not provided internally");
+ throw new SystemAssemblyException(aNode +
+ ": external provided interface is not provided internally");
}
}
}
- /**
- * DOCUMENT ME!
- *
- * @param aMsg DOCUMENT ME!
- * @param aNode DOCUMENT ME!
- * @param edges DOCUMENT ME!
- */
private void createDuplicateException(String aMsg, Node aNode,
- List<Edge> edges) {
+ List<Edge> aEdges) {
StringBuffer buf = new StringBuffer();
buf.append(aNode + ": " + aMsg + ": ");
- for (Edge edge : edges) {
+ for (Edge edge : aEdges) {
buf.append(edge.getTo() + "/ ");
}