1 files changed, 178 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/javabeans/JavaBeansDataBinding.java b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/javabeans/JavaBeansDataBinding.java
new file mode 100644
index 0000000000..3721fb7e63
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/javabeans/JavaBeansDataBinding.java
@@ -0,0 +1,178 @@
+/*
+ * 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.databinding.javabeans;
+
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.ObjectStreamClass;
+import java.io.OutputStream;
+import java.io.Serializable;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.logging.Logger;
+
+import org.apache.tuscany.sca.databinding.BaseDataBinding;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Operation;
+
+/**
+ * DataBinding for JavaBeans
+ *
+ * @version $Rev$ $Date$
+ */
+public class JavaBeansDataBinding extends BaseDataBinding {
+    private final static Logger logger = Logger.getLogger(JavaBeansDataBinding.class.getName());
+    /**
+     * Defining a weight to a very high number so that the transformer won't be picked
+     * up by other paths unless it's the only available path
+     */
+    public static final int HEAVY_WEIGHT = 10000;
+    public static final String NAME = "java:complexType";
+
+    public JavaBeansDataBinding() {
+        super(NAME, Object.class);
+    }
+
+    protected JavaBeansDataBinding(String name, Class<?> baseType) {
+        super(name, baseType);
+    }
+
+    @Override
+    public Object copy(Object arg, DataType sourceDataType, DataType targetDataType, Operation sourceOperation, Operation targetOperation) {
+        if (arg == null) {
+            return null;
+        }
+        final Class<?> clazz = arg.getClass();
+        if (String.class == clazz || clazz.isPrimitive()
+            || Number.class.isAssignableFrom(clazz)
+            || Boolean.class.isAssignableFrom(clazz)
+            || Character.class.isAssignableFrom(clazz)
+            || Byte.class.isAssignableFrom(clazz)) {
+            // Immutable classes
+            return arg;
+        }
+        try {
+            if (arg instanceof Serializable) {
+                ByteArrayOutputStream bos = new ByteArrayOutputStream();
+                ObjectOutputStream oos = getObjectOutputStream(bos);
+                oos.writeObject(arg);
+                oos.close();
+                bos.close();
+
+                // Work out which ClassLoader to use for deserializing arg
+                // We want to use:
+                //   * The ClassLoader of the targetDataType if it is not the System ClassLoader
+                //   * The ClassLoader of arg if it is not the System ClassLoader
+                //   * The ThreadContext ClassLoader if the ClassLoader of arg is the System ClassLoader
+                //     because Collection classes are loaded by the System ClassLoader but their contents
+                //     may be loaded from another ClassLoader
+                //
+                final DataType fTargetDataType = targetDataType;
+                ClassLoader classLoaderToUse = AccessController.doPrivileged(new PrivilegedAction<ClassLoader>() {
+                    public ClassLoader run() {
+                        ClassLoader cl = fTargetDataType.getPhysical().getClassLoader();
+                        return cl;
+                    }
+                });
+                
+                
+                
+                if (classLoaderToUse == null) {
+                    classLoaderToUse = clazz.getClassLoader();
+                }
+                if (classLoaderToUse == null)
+                {
+                    // ClassLoader of arg is the System ClassLoader so we will use the ThreadContext ClassLoader
+                    // instead
+                    classLoaderToUse = Thread.currentThread().getContextClassLoader();
+                }
+
+                ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
+                ObjectInputStream ois = getObjectInputStream(bis, classLoaderToUse);
+                Object objectCopy = ois.readObject();
+                ois.close();
+                bis.close();
+                return objectCopy;
+            } else if (arg instanceof Cloneable) {
+                Method clone;
+                try {
+                    clone = arg.getClass().getMethod("clone");
+                    try {
+                        return clone.invoke(arg, (Object[])null);
+                    } catch (InvocationTargetException e) {
+                        if (e.getTargetException() instanceof CloneNotSupportedException) {
+                            // Ignore
+                        } else {
+                            throw new IllegalArgumentException(e);
+                        }
+                    } catch (Exception e) {
+                        throw new IllegalArgumentException(e);
+                    }
+                } catch (NoSuchMethodException e) {
+                    // Ignore it
+                }
+            }
+                // return arg;
+            logger.warning("Argument type '" + arg.getClass().getName()
+                + "' is not Serializable or Cloneable. Pass-by-value is skipped.");
+            return arg;
+       } catch (Exception e) {
+            throw new IllegalArgumentException("Pass-by-value is not supported for the given object: " + arg.getClass()
+                .getName(), e);
+        }
+    }
+
+    protected ObjectOutputStream getObjectOutputStream(OutputStream os) throws IOException {
+        return new ObjectOutputStream(os);
+    }
+
+    protected ObjectInputStream getObjectInputStream(InputStream is, final ClassLoader cl) throws IOException {
+        ObjectInputStream ois = new ObjectInputStream(is) {
+            @Override
+            protected Class<?> resolveClass(ObjectStreamClass desc) throws IOException, ClassNotFoundException {
+                try {
+                    return Class.forName(desc.getName(), false, cl);
+                } catch (ClassNotFoundException e) {
+                    try {
+                        // For OSGi, use context ClassLoader if the bundle ClassLoader cannot load the class
+                        if (cl != Thread.currentThread().getContextClassLoader()) {
+                            return Class.forName(desc.getName(), false, Thread.currentThread().getContextClassLoader());
+                        }
+                    } catch (ClassNotFoundException e1) {
+                        // ignore
+                    } catch (NoClassDefFoundError e1) {
+                        // ignore
+                    }
+                    return super.resolveClass(desc);
+                }
+            }
+
+        };
+        return ois;
+    }
+
+}