diff options
Diffstat (limited to 'sandbox/sebastien/java/sca-node/modules/binding-corba/src/main/java/org/apache/tuscany/sca/binding/corba/types/TypeTreeCreator.java')
| -rw-r--r-- | sandbox/sebastien/java/sca-node/modules/binding-corba/src/main/java/org/apache/tuscany/sca/binding/corba/types/TypeTreeCreator.java | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/sca-node/modules/binding-corba/src/main/java/org/apache/tuscany/sca/binding/corba/types/TypeTreeCreator.java b/sandbox/sebastien/java/sca-node/modules/binding-corba/src/main/java/org/apache/tuscany/sca/binding/corba/types/TypeTreeCreator.java new file mode 100644 index 0000000000..4f79719ed4 --- /dev/null +++ b/sandbox/sebastien/java/sca-node/modules/binding-corba/src/main/java/org/apache/tuscany/sca/binding/corba/types/TypeTreeCreator.java @@ -0,0 +1,224 @@ +/*
+ * 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.binding.corba.types;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @version $Rev$ $Date$
+ * Creator of types tree.
+ *
+ */
+public class TypeTreeCreator {
+
+ /**
+ * Helps to determine if type is a primitive.
+ */
+ private static List<Class<?>> primitives = new ArrayList<Class<?>>();
+
+ static {
+ primitives.add(boolean.class);
+ primitives.add(byte.class);
+ primitives.add(short.class);
+ primitives.add(int.class);
+ primitives.add(long.class);
+ primitives.add(double.class);
+ primitives.add(float.class);
+ primitives.add(char.class);
+ primitives.add(String.class);
+ primitives.add(Boolean.class);
+ primitives.add(Byte.class);
+ primitives.add(Short.class);
+ primitives.add(Integer.class);
+ primitives.add(Long.class);
+ primitives.add(Double.class);
+ primitives.add(Float.class);
+ primitives.add(Character.class);
+ }
+
+ /**
+ * Creates class for given string argument.
+ *
+ * @param name
+ * name of type
+ * @return type
+ */
+ private static Class<?> createClassFromString(String name) {
+ Class<?> result = null;
+ try {
+ if (name.length() == 1) {
+ // primitives
+ switch (name.charAt(0)) {
+ case 'Z':
+ result = boolean.class;
+ break;
+ case 'C':
+ result = char.class;
+ break;
+ case 'B':
+ result = byte.class;
+ break;
+ case 'S':
+ result = short.class;
+ break;
+ case 'I':
+ result = int.class;
+ break;
+ case 'J':
+ result = long.class;
+ break;
+ case 'F':
+ result = float.class;
+ break;
+ case 'D':
+ result = double.class;
+ break;
+ }
+ } else {
+ // class
+ name = name.substring(1, name.length() - 1);
+ result = Class.forName(name);
+ }
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ return result;
+ }
+
+ /**
+ * Reduces dimension of array.
+ *
+ * @param forClass
+ * array class
+ * @return reduced array
+ */
+ private static Class<?> reduceArrayDimension(Class<?> forClass) {
+ String name = forClass.getName();
+ try {
+ String reduced = name.substring(1, name.length());
+ if (reduced.startsWith("[")) {
+ // reduced class is still an array
+ return Class.forName(reduced);
+ } else {
+ // reduced class may be primitive or class
+ return createClassFromString(reduced);
+ }
+ } catch (ClassNotFoundException e) {
+ e.printStackTrace();
+ }
+ return null;
+ }
+
+ /**
+ * Creates tree for given type.
+ *
+ * @param forClass
+ * @return type tree
+ */
+ public static TypeTree createTypeTree(Class<?> forClass) {
+ TypeTree tree = new TypeTree();
+ TypeTreeNode rootNode = null;
+ rootNode = inspectClassHierarchy(forClass, tree);
+ tree.setRootNode(rootNode);
+ return tree;
+
+ }
+
+ /**
+ * Recurrent method which builds type tree.
+ *
+ * @param forClass
+ * @param tree
+ * @return
+ */
+ private static TypeTreeNode inspectClassHierarchy(Class<?> forClass,
+ TypeTree tree) {
+ // //remains of type tree caching
+ // TypeTreeNode existingNode = tree.getNodeForType(forClass);
+ // if (existingNode != null) {
+ // return existingNode;
+ // }
+
+ TypeTreeNode node = createTypeNode(forClass);
+ NodeType nodeType = node.getNodeType();
+ TypeTreeNode[] children = null;
+
+ // //remains of type tree caching
+ // tree.addUsedType(forClass, node);
+
+ if (nodeType.equals(NodeType.primitive)) {
+ // stop condition for recurrent method
+ } else if (nodeType.equals(NodeType.array)) {
+ // similar to sequence, but with fixed array length
+ // TODO: determine how array length will be declared
+ } else if (nodeType.equals(NodeType.sequence)) {
+ // reducing sequence dimension
+ Class<?> reduced = reduceArrayDimension(node.getJavaClass());
+ children = new TypeTreeNode[1];
+ children[0] = inspectClassHierarchy(reduced, tree);
+ } else if (nodeType.equals(NodeType.struct)) {
+ // inspect types for every structure member
+ Field[] fields = node.getJavaClass().getFields();
+ children = new TypeTreeNode[fields.length];
+ for (int i = 0; i < fields.length; i++) {
+ Class<?> field = fields[i].getType();
+ TypeTreeNode child = inspectClassHierarchy(field, tree);
+ child.setName(fields[i].getName());
+ children[i] = child;
+ }
+ } else if (nodeType.equals(NodeType.union)) {
+ // TODO: unions
+ } else if (nodeType.equals(NodeType.reference)) {
+ // TODO: CORBA references
+ }
+
+ node.setChildren(children);
+ return node;
+ }
+
+ /**
+ * Creating and configuring TypeTreeNode for given class.
+ *
+ * @param forClass
+ * class
+ * @return node
+ */
+ private static TypeTreeNode createTypeNode(Class<?> forClass) {
+ TypeTreeNode node = new TypeTreeNode();
+ if (forClass.isArray()) {
+ node.setNodeType(NodeType.sequence);
+ node.setJavaClass(forClass);
+ } else if (primitives.contains(forClass)) {
+ node.setNodeType(NodeType.primitive);
+ node.setJavaClass(forClass);
+ node.setChildren(null);
+ } else if (forClass.isInterface()) {
+ node.setNodeType(NodeType.reference);
+ node.setJavaClass(forClass);
+ node.setChildren(null);
+ } else {
+ node.setNodeType(NodeType.struct);
+ node.setJavaClass(forClass);
+ }
+ return node;
+ }
+}
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