2 * Copyright 2008 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.wamblee.system.graph.component;
18 import java.util.List;
20 import org.wamblee.system.core.SystemAssemblyException;
21 import org.wamblee.system.graph.Edge;
22 import org.wamblee.system.graph.Graph;
23 import org.wamblee.system.graph.Node;
24 import org.wamblee.system.graph.Visitor;
27 * Visitor that checks externally provided
32 * @author Erik Brakkee
35 public class CheckExternallyProvidedVisitor implements Visitor {
39 public CheckExternallyProvidedVisitor(Graph aGraph) {
44 public void visitEdge(Edge aEdge) {
49 public void visitNode(Node aNode) {
50 if ( aNode instanceof ExternalProvidedInterfaceNode) {
51 ExternalProvidedInterfaceNode provided = (ExternalProvidedInterfaceNode) aNode;
52 List<Edge> edges = _graph.findOutgoing(provided);
53 if ( edges.size() > 2 ) {
54 createDuplicateException("External provided interfaces has multiple internal matches", aNode, edges);
56 if ( edges.size() == 0 ) {
57 throw new SystemAssemblyException(aNode + ": external provded interface is not provided by any of the internal components");
62 private void createDuplicateException(String aMsg, Node aNode, List<Edge> edges) {
63 StringBuffer buf = new StringBuffer();
65 + ": " + aMsg + ": ");
66 for (Edge edge : edges) {
67 buf.append(edge.getTo() + "/ ");
69 throw new SystemAssemblyException(buf.toString());