From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 26 Sep 2013 20:33:20 +0000
Subject: 2.0 branch for possible maintenance release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68
---
 .../sca/contribution/resolver/ClassReference.java  | 129 +++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 sca-java-2.x/branches/2.0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ClassReference.java

(limited to 'sca-java-2.x/branches/2.0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ClassReference.java')

diff --git a/sca-java-2.x/branches/2.0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ClassReference.java b/sca-java-2.x/branches/2.0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ClassReference.java
new file mode 100644
index 0000000000..7d8f2ef1c8
--- /dev/null
+++ b/sca-java-2.x/branches/2.0/modules/contribution/src/main/java/org/apache/tuscany/sca/contribution/resolver/ClassReference.java
@@ -0,0 +1,129 @@
+/*
+ * 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.contribution.resolver;
+
+import java.lang.ref.WeakReference;
+
+import org.apache.tuscany.sca.assembly.Base;
+import org.apache.tuscany.sca.contribution.Contribution;
+
+/**
+ * A weak reference to a class, which should be used to register classes
+ * with an ArtifactResolver and resolve these classes later.
+ * 
+ * FIXME The core contribution model should not have dependencies on classes
+ * and ClassLoaders. This should move to the Java import support module.
+ *
+ * @version $Rev$ $Date$
+ * @tuscany.spi.extension.asclient
+ */
+public class ClassReference implements Base {
+    
+    private WeakReference<Class<?>> clazz;
+    private String className;
+    private Contribution contributionContainingClass;
+
+    /**
+     * Constructs a new ClassReference.
+     * 
+     * @param clazz The class reference
+     */
+    public ClassReference(Class<?> clazz) {
+        this.clazz = new WeakReference<Class<?>>(clazz);
+        this.className = clazz.getName();
+    }
+    
+    /**
+     * Constructs a new ClassReference.
+     * 
+     * @param className The class name
+     */
+    public ClassReference(String className) {
+        this.className = className;
+    }
+    
+    /**
+     * Get the referenced class.
+     * 
+     * @return The referenced class
+     */
+    public Class<?> getJavaClass() {
+        if (clazz != null) {
+            return clazz.get();
+        } else {
+            return null;
+        }
+    }
+    
+    /**
+     * Get the referenced class name.
+     * 
+     * @return The class name
+     */
+    public String getClassName() {
+        return className;
+    }
+    
+    public boolean isUnresolved() {
+        return clazz == null;
+    }
+    
+    public void setUnresolved(boolean unresolved) {
+        throw new IllegalStateException();
+    }
+
+    @Override
+    public int hashCode() {
+        return className.hashCode();
+    }
+    
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        } else {
+            if (obj instanceof ClassReference) {
+                return className.equals(((ClassReference)obj).className);
+            } else {
+                return false;
+            }
+        }
+    }
+    
+    /**
+     * A Java class may reference a WSDL file via a JAXWS annotation. We need to resolve
+     * the WSDL file location in the context of the same contribution that holds the 
+     * Java file. In order to do this we need to pass back the actual contribution that
+     * was used to resolve a Java class. It's possible that multiple contributions hold
+     * the same class so just scanning the artifacts in all the contribution is not good 
+     * enough
+     * 
+     * @return
+     */
+    public Contribution getContributionContainingClass() {
+        return contributionContainingClass;
+    }
+    
+    public void setContributionContainingClass(
+            Contribution contributionContainingClass) {
+        this.contributionContainingClass = contributionContainingClass;
+    }
+
+}
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