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 org.wamblee.system.graph.Edge;
19 import org.wamblee.system.graph.EdgeFilter;
22 * Filter used to explicitly connect required and provided interfaces within a
25 * @author Erik Brakkee
28 public class ConnectRequiredProvidedEdgeFilter implements EdgeFilter {
30 private String client;
31 private String required;
32 private String server;
33 private String provided;
35 public ConnectRequiredProvidedEdgeFilter(String aClient, String aRequired,
36 String aServer, String aProvided) {
41 if ( client == null ) {
42 throw new IllegalArgumentException("Client component must be specified");
47 public boolean isViolated(Edge aEdge) {
48 if (aEdge.getFrom() instanceof RequiredInterfaceNode
49 && aEdge.getTo() instanceof ProvidedInterfaceNode) {
50 return isViolated((RequiredInterfaceNode) aEdge.getFrom(),
51 (ProvidedInterfaceNode) aEdge.getTo());
56 private boolean isViolated(RequiredInterfaceNode aFrom,
57 ProvidedInterfaceNode aTo) {
58 if (client.equals(aFrom.getComponent().getName())
59 && (required == null || required.equals(aFrom.getRequired()
62 if ( server == null ) {
63 return true; // all connections are eliminated
65 if (server.equals(aTo.getComponent().getName())
66 && (provided == null || provided.equals(aTo.getProvided()
68 // to part matches also
72 // From matches and to doesn't so edgefilter is violated.
76 // From part does not match, restriction does not apply.