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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/elements/tie/SpringElementTie.java | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/elements/tie/SpringElementTie.java b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/elements/tie/SpringElementTie.java new file mode 100644 index 0000000000..c088e5d0f2 --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta1-RC2/modules/implementation-spring-tie/src/main/java/org/apache/tuscany/sca/implementation/spring/elements/tie/SpringElementTie.java @@ -0,0 +1,70 @@ +/* + * 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.implementation.spring.elements.tie; + +import java.lang.reflect.Field; +import java.lang.reflect.ParameterizedType; +import java.lang.reflect.Type; +import java.util.ArrayList; +import java.util.Collection; +import java.util.List; + +/** + * A hacking utility to copy beans field by field between two class loaders + */ +public class SpringElementTie { + public static <T> T copy(Object source, Class<T> cls, Type genericType) { + if (source == null) { + return null; + } + if (cls.isPrimitive()) { + return (T)source; + } + if (Collection.class.isAssignableFrom(cls)) { + ParameterizedType pType = (ParameterizedType)genericType; + Type itemType = pType.getActualTypeArguments()[0]; + Collection col = (Collection)source; + List target = new ArrayList(); + for (Object item : col) { + target.add(copy(item, (Class<?>)itemType, itemType)); + } + return (T)target; + } + if (cls.isInstance(source)) { + return cls.cast(source); + } + try { + Class<?> sourceClass = source.getClass(); + T target = cls.newInstance(); + for (Field sourceField : sourceClass.getDeclaredFields()) { + sourceField.setAccessible(true); + Field targetField = cls.getDeclaredField(sourceField.getName()); + targetField.setAccessible(true); + Object sourceFieldValue = sourceField.get(source); + Object targetFieldValue = copy(sourceFieldValue, targetField.getType(), targetField.getGenericType()); + targetField.set(target, targetFieldValue); + } + return target; + } catch (Throwable e) { + throw new IllegalArgumentException(e); + } + } + +} |