1 files changed, 111 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6-TUSCANY-3909/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeIncludeBuilderImpl.java b/sca-java-1.x/tags/1.6-TUSCANY-3909/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeIncludeBuilderImpl.java
new file mode 100644
index 0000000000..28f40a077d
--- /dev/null
+++ b/sca-java-1.x/tags/1.6-TUSCANY-3909/assembly/src/main/java/org/apache/tuscany/sca/assembly/builder/impl/CompositeIncludeBuilderImpl.java
@@ -0,0 +1,111 @@
+/*
+ * 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.tuscany.sca.assembly.builder.impl;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilder;
+import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException;
+import org.apache.tuscany.sca.monitor.Monitor;
+import org.apache.tuscany.sca.monitor.Problem;
+import org.apache.tuscany.sca.monitor.Problem.Severity;
+import org.apache.tuscany.sca.monitor.impl.ProblemImpl;
+
+/**
+ * Implementation of a CompositeBuilder.
+ *
+ * @version $Rev$ $Date$
+ */
+public class CompositeIncludeBuilderImpl implements CompositeBuilder {   
+
+    private Monitor monitor;
+        
+    public CompositeIncludeBuilderImpl(Monitor monitor) {
+        this.monitor = monitor;
+    }
+      
+    public void build(Composite composite) throws CompositeBuilderException {
+        fuseIncludes(composite);
+    }
+
+    private void warning(String message, Object model, String... messageParameters) {
+        if (monitor != null){
+            Problem problem = new ProblemImpl(this.getClass().getName(), "assembly-validation-messages", Severity.WARNING, model, message, (Object[])messageParameters);
+            monitor.problem(problem);
+        }
+    }
+
+    /**
+     * Collect all includes in a graph of includes.
+     * 
+     * @param composite
+     * @param includes
+     */
+    private void collectIncludes(Composite composite, List<Composite> includes, Set<Composite> visited) {
+        for (Composite include : composite.getIncludes()) {
+            if (visited.contains(include)) {
+                warning("CompositeAlreadyIncluded", composite, include.getName().toString());
+                continue;
+            }
+                        
+            includes.add(include);
+            visited.add(include);
+            collectIncludes(include, includes, visited);
+        }
+    }
+
+    /**
+     * Copy a list of includes into a composite.
+     * 
+     * @param composite
+     */
+    private void fuseIncludes(Composite composite) {
+    
+        // First collect all includes
+        List<Composite> includes = new ArrayList<Composite>();
+        Set<Composite> visited = new HashSet<Composite>();
+        visited.add(composite);
+        collectIncludes(composite, includes, visited);
+        // Then clone them
+        for (Composite include : includes) {
+            Composite clone;
+            try {
+                clone = (Composite)include.clone();
+            } catch (CloneNotSupportedException e) {
+                throw new RuntimeException(e);
+            }
+            composite.getComponents().addAll(clone.getComponents());
+            composite.getServices().addAll(clone.getServices());
+            composite.getReferences().addAll(clone.getReferences());
+            composite.getProperties().addAll(clone.getProperties());
+            composite.getWires().addAll(clone.getWires());
+            composite.getPolicySets().addAll(clone.getPolicySets());
+            composite.getRequiredIntents().addAll(clone.getRequiredIntents());
+        }
+    
+        // Clear the list of includes
+        composite.getIncludes().clear();
+    }
+
+}