X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=system%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fsystem%2Fgraph%2Fcomponent%2FCheckExternallyProvidedVisitor.java;fp=system%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fsystem%2Fgraph%2Fcomponent%2FCheckExternallyProvidedVisitor.java;h=ef5ea4fb7f024eb459db599b97f2e7ee8ade63e8;hb=aa78ce0aeaa36871bd926eefa1eabf9cb3254c7a;hp=0000000000000000000000000000000000000000;hpb=436718e7b7ee0bb9f37db496dbde5c011d5f84e3;p=utils

diff --git a/system/general/src/main/java/org/wamblee/system/graph/component/CheckExternallyProvidedVisitor.java b/system/general/src/main/java/org/wamblee/system/graph/component/CheckExternallyProvidedVisitor.java
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--- /dev/null
+++ b/system/general/src/main/java/org/wamblee/system/graph/component/CheckExternallyProvidedVisitor.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2008 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 java.util.List;
+
+import org.wamblee.system.core.SystemAssemblyException;
+import org.wamblee.system.graph.Edge;
+import org.wamblee.system.graph.Graph;
+import org.wamblee.system.graph.Node;
+import org.wamblee.system.graph.Visitor;
+
+/**
+ * Visitor that checks externally provided
+ * <ul>
+ *   <li>
+ * </ul>
+ * 
+ * @author Erik Brakkee
+ *
+ */
+public class CheckExternallyProvidedVisitor implements Visitor {
+    
+    private Graph _graph; 
+    
+    public CheckExternallyProvidedVisitor(Graph aGraph) { 
+        _graph = aGraph; 
+    }
+
+    @Override
+    public void visitEdge(Edge aEdge) {
+        // Empty.
+    }
+
+    @Override
+    public void visitNode(Node aNode) {
+        if ( aNode instanceof ExternalProvidedInterfaceNode) { 
+            ExternalProvidedInterfaceNode provided = (ExternalProvidedInterfaceNode) aNode; 
+            List<Edge> edges = _graph.findOutgoing(provided);
+            if ( edges.size() > 2 ) { 
+                createDuplicateException("External provided interfaces has multiple internal matches", aNode, edges);
+            }
+            if ( edges.size() == 0 ) { 
+                throw new SystemAssemblyException(aNode + ": external provded interface is not provided by any of the internal components");
+            }
+        }
+    }
+    
+    private void createDuplicateException(String aMsg, Node aNode, List<Edge> edges) {
+        StringBuffer buf = new StringBuffer();
+        buf.append(aNode
+                + ": " + aMsg + ": ");
+        for (Edge edge : edges) {
+            buf.append(edge.getTo() + "/ ");
+        }
+        throw new SystemAssemblyException(buf.toString());
+    }
+
+}