diff options
Diffstat (limited to 'branches/sca-java-1.x/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/impl/types/util/UnionTypeHelper.java')
-rw-r--r-- | branches/sca-java-1.x/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/impl/types/util/UnionTypeHelper.java | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/branches/sca-java-1.x/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/impl/types/util/UnionTypeHelper.java b/branches/sca-java-1.x/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/impl/types/util/UnionTypeHelper.java new file mode 100644 index 0000000000..66c928acec --- /dev/null +++ b/branches/sca-java-1.x/modules/binding-corba-runtime/src/main/java/org/apache/tuscany/sca/binding/corba/impl/types/util/UnionTypeHelper.java @@ -0,0 +1,92 @@ +/* + * 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.impl.types.util; + +import java.lang.reflect.Field; +import java.util.logging.Level; +import java.util.logging.Logger; + +import org.apache.tuscany.sca.binding.corba.impl.types.TypeTreeNode; +import org.apache.tuscany.sca.binding.corba.impl.types.UnionAttributes; +import org.omg.CORBA.portable.InputStream; +import org.omg.CORBA.portable.OutputStream; + +/** + * @version $Rev$ $Date$ + */ +public class UnionTypeHelper implements TypeHelper { + + private static final Logger logger = Logger.getLogger(UnionTypeHelper.class.getName()); + + public Object read(TypeTreeNode node, InputStream is) { + Object result = null; + try { + int discriminator = is.read_long(); + UnionAttributes attrs = (UnionAttributes)node.getAttributes(); + String childName = attrs.getOptionsMapping().get(discriminator); + if (childName == null) { + // get default if option numbers field not found + childName = attrs.getDefaultOptionName(); + } + result = node.getJavaClass().newInstance(); + Field discField = result.getClass().getDeclaredField(attrs.getDiscriminatorName()); + discField.setAccessible(true); + discField.set(result, discriminator); + for (int i = 0; i < node.getChildren().length; i++) { + if (node.getChildren()[i].getName().equals(childName)) { + Object unionValue = TypeHelpersProxy.read(node.getChildren()[i], is); + Field childField = result.getClass().getDeclaredField(childName); + childField.setAccessible(true); + childField.set(result, unionValue); + break; + } + } + } catch (Exception e) { + logger.log(Level.WARNING, "Exception during reading CORBA union data", e); + } + return result; + } + + public void write(TypeTreeNode node, OutputStream os, Object data) { + try { + UnionAttributes attrs = (UnionAttributes)node.getAttributes(); + Field discriminatorField = data.getClass().getDeclaredField(attrs.getDiscriminatorName()); + discriminatorField.setAccessible(true); + int discriminator = discriminatorField.getInt(data); + os.write_long(discriminator); + String childName = attrs.getOptionsMapping().get(discriminator); + if (childName == null) { + // get default if option numbers field not found + childName = attrs.getDefaultOptionName(); + } + for (int i = 0; i < node.getChildren().length; i++) { + if (node.getChildren()[i].getName().equals(childName)) { + Field childField = data.getClass().getDeclaredField(childName); + childField.setAccessible(true); + TypeHelpersProxy.write(node.getChildren()[i], os, childField.get(data)); + break; + } + } + } catch (Exception e) { + logger.log(Level.WARNING, "Exception during writing CORBA union data", e); + } + } + +} |