svn commit: r904001 - /labs/amber/signature-api/src/main/java/org/apache/labs/amber/signature/message/AbstractOAuthMessageBeanInfo.java

[si...@apache.org]

Author: simonetripodi
Date: Thu Jan 28 08:41:31 2010
New Revision: 904001

URL: http://svn.apache.org/viewvc?rev=904001&view=rev
Log:
first checkin of AbstractOAuthMessageBeanInfo class

Added:
    labs/amber/signature-api/src/main/java/org/apache/labs/amber/signature/message/AbstractOAuthMessageBeanInfo.java   (with props)

Added: labs/amber/signature-api/src/main/java/org/apache/labs/amber/signature/message/AbstractOAuthMessageBeanInfo.java
URL: http://svn.apache.org/viewvc/labs/amber/signature-api/src/main/java/org/apache/labs/amber/signature/message/AbstractOAuthMessageBeanInfo.java?rev=904001&view=auto
==============================================================================
--- labs/amber/signature-api/src/main/java/org/apache/labs/amber/signature/message/AbstractOAuthMessageBeanInfo.java (added)
+++ labs/amber/signature-api/src/main/java/org/apache/labs/amber/signature/message/AbstractOAuthMessageBeanInfo.java Thu Jan 28 08:41:31 2010
@@ -0,0 +1,85 @@
+/*
+ * 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.labs.amber.signature.message;
+
+import java.beans.IntrospectionException;
+import java.beans.PropertyDescriptor;
+import java.beans.SimpleBeanInfo;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * BeanInfo that exposes class properties with aliases.
+ *
+ * @version $Id$
+ */
+abstract class AbstractOAuthMessageBeanInfo extends SimpleBeanInfo {
+
+    /**
+     * Maintains the original descriptors and the alias descriptor.
+     */
+    private final List<PropertyDescriptor> descriptors = new ArrayList<PropertyDescriptor>();
+
+    /**
+     * Scans the class hierarchy and associates the OAuth param name.
+     *
+     * @param klass the class is currently analyzed.
+     */
+    public AbstractOAuthMessageBeanInfo(Class<?> klass) {
+        this.visit(klass);
+    }
+
+    /**
+     * Scans the class hierarchy and associates the OAuth param name.
+     *
+     * @param klass the class is currently analyzed.
+     */
+    private void visit(Class<?> klass) {
+        if (Object.class == klass) {
+            return;
+        }
+
+        for (Field field : klass.getDeclaredFields()) {
+            try {
+                PropertyDescriptor originalDescriptor = new PropertyDescriptor(field.getName(), klass);
+                this.descriptors.add(originalDescriptor);
+
+                if (field.isAnnotationPresent(OAuthParameter.class)) {
+                    OAuthParameter oAuthParameter = field.getAnnotation(OAuthParameter.class);
+                    PropertyDescriptor aliasDescriptor = new PropertyDescriptor(oAuthParameter.name(),
+                                originalDescriptor.getReadMethod(),
+                                originalDescriptor.getWriteMethod());
+                    this.descriptors.add(aliasDescriptor);
+                }
+            } catch (IntrospectionException e) {
+                // TODO can this exception be ignored?
+            }
+        }
+
+        this.visit(klass.getSuperclass());
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public PropertyDescriptor[] getPropertyDescriptors() {
+        return this.descriptors.toArray(new PropertyDescriptor[this.descriptors.size()]);
+    }
+
+}

Propchange: labs/amber/signature-api/src/main/java/org/apache/labs/amber/signature/message/AbstractOAuthMessageBeanInfo.java
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