summaryrefslogtreecommitdiffstats
path: root/java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/DefaultDataBindingExtensionPoint.java
diff options
context:
space:
mode:
Diffstat (limited to 'java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/DefaultDataBindingExtensionPoint.java')
-rw-r--r--java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/DefaultDataBindingExtensionPoint.java261
1 files changed, 0 insertions, 261 deletions
diff --git a/java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/DefaultDataBindingExtensionPoint.java b/java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/DefaultDataBindingExtensionPoint.java
deleted file mode 100644
index 19455fcd29..0000000000
--- a/java/sca/modules/databinding/src/main/java/org/apache/tuscany/sca/databinding/DefaultDataBindingExtensionPoint.java
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * 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;
-
-import java.io.IOException;
-import java.lang.reflect.Constructor;
-import java.lang.reflect.GenericArrayType;
-import java.lang.reflect.Type;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import org.apache.tuscany.sca.core.ExtensionPointRegistry;
-import org.apache.tuscany.sca.databinding.javabeans.JavaBeansDataBinding;
-import org.apache.tuscany.sca.databinding.javabeans.JavaExceptionDataBinding;
-import org.apache.tuscany.sca.extensibility.ServiceDeclaration;
-import org.apache.tuscany.sca.extensibility.ServiceDiscovery;
-import org.apache.tuscany.sca.interfacedef.DataType;
-import org.apache.tuscany.sca.interfacedef.Operation;
-import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
-import org.apache.tuscany.sca.interfacedef.util.XMLType;
-
-/**
- * The default implementation of a data binding extension point.
- *
- * @version $Rev$ $Date$
- */
-public class DefaultDataBindingExtensionPoint implements DataBindingExtensionPoint {
- private ExtensionPointRegistry registry;
- private final Map<String, DataBinding> bindings = new HashMap<String, DataBinding>();
- private final List<DataBinding> databindings = new ArrayList<DataBinding>();
- private static final Logger logger = Logger.getLogger(DefaultDataBindingExtensionPoint.class.getName());
- private boolean loadedDataBindings;
-
- public DefaultDataBindingExtensionPoint() {
- }
-
- public DefaultDataBindingExtensionPoint(ExtensionPointRegistry registry) {
- this.registry = registry;
- }
-
- public DataBinding getDataBinding(String id) {
- if (id == null) {
- return null;
- }
- DataBinding dataBinding = bindings.get(id.toLowerCase());
- if (dataBinding == null) {
- loadDataBindings();
- dataBinding = bindings.get(id.toLowerCase());
- }
- return dataBinding;
- }
-
- public void addDataBinding(DataBinding dataBinding) {
- if (logger.isLoggable(Level.FINE)) {
- String className = dataBinding.getClass().getName();
- boolean lazy = false;
- if (dataBinding instanceof LazyDataBinding) {
- className = ((LazyDataBinding)dataBinding).dataBindingDeclaration.getClassName();
- lazy = true;
- }
- logger.fine("Adding databinding: " + className + ";name=" + dataBinding.getName() + ",lazy=" + lazy);
- }
- databindings.add(dataBinding);
- bindings.put(dataBinding.getName().toLowerCase(), dataBinding);
-
- }
-
- public DataBinding removeDataBinding(String id) {
- if (id == null) {
- return null;
- }
- DataBinding dataBinding = bindings.remove(id.toLowerCase());
- if (dataBinding != null) {
- databindings.remove(dataBinding);
- }
- return dataBinding;
- }
-
- /**
- * Dynamically load data bindings declared under META-INF/services
- */
- private synchronized void loadDataBindings() {
- if (loadedDataBindings)
- return;
-
- // Get the databinding service declarations
- Collection<ServiceDeclaration> dataBindingDeclarations;
- try {
- dataBindingDeclarations = registry.getServiceDiscovery().getServiceDeclarations(DataBinding.class.getName());
- } catch (IOException e) {
- throw new IllegalStateException(e);
- }
-
- // Load data bindings
- for (ServiceDeclaration dataBindingDeclaration : dataBindingDeclarations) {
- Map<String, String> attributes = dataBindingDeclaration.getAttributes();
- String name = attributes.get("name");
-
- // Create a data binding wrapper and register it
- DataBinding dataBinding = new LazyDataBinding(name, dataBindingDeclaration);
- addDataBinding(dataBinding);
- }
-
- loadedDataBindings = true;
- }
-
- /**
- * A data binding facade allowing data bindings to be lazily loaded and
- * initialized.
- */
- private class LazyDataBinding implements DataBinding {
-
- private String name;
- private ServiceDeclaration dataBindingDeclaration;
- private DataBinding dataBinding;
-
- private LazyDataBinding(String type, ServiceDeclaration dataBindingDeclaration) {
- this.name = type;
- this.dataBindingDeclaration = dataBindingDeclaration;
- }
-
- /**
- * Load and instantiate the data binding class.
- *
- * @return The data binding.
- */
- @SuppressWarnings("unchecked")
- private DataBinding getDataBinding() {
- if (dataBinding == null) {
- try {
- Class<DataBinding> dataBindingClass = (Class<DataBinding>)dataBindingDeclaration.loadClass();
- try {
- Constructor<DataBinding> constructor = dataBindingClass.getConstructor();
- dataBinding = constructor.newInstance();
- } catch (NoSuchMethodException e) {
- Constructor<DataBinding> constructor =
- dataBindingClass.getConstructor(ExtensionPointRegistry.class);
- dataBinding = constructor.newInstance(DefaultDataBindingExtensionPoint.this.registry);
- }
- } catch (Exception e) {
- throw new IllegalStateException(e);
- }
- }
- return dataBinding;
- }
-
- public Object copy(Object object, DataType dataType, Operation operation) {
- return getDataBinding().copy(object, dataType, operation);
- }
-
- public String getName() {
- return name;
- }
-
- public XMLTypeHelper getXMLTypeHelper() {
- return getDataBinding().getXMLTypeHelper();
- }
-
- public WrapperHandler getWrapperHandler() {
- return getDataBinding().getWrapperHandler();
- }
-
- public boolean introspect(DataType dataType, Operation operation) {
- return getDataBinding().introspect(dataType, operation);
- }
-
- public DataType introspect(Object value, Operation operation) {
- return getDataBinding().introspect(value, operation);
- }
- }
-
- //FIXME The following methods should not be on the extension point
- // they should be on a separate class
- public boolean introspectType(DataType dataType, Operation operation) {
- loadDataBindings();
- for (DataBinding binding : databindings) {
- // don't introspect for JavaBeansDatabinding as all javatypes will
- // anyways match to its basetype
- // which is java.lang.Object. Default to this only if no databinding
- // results
- if (!binding.getName().equals(JavaBeansDataBinding.NAME)) {
- if (binding.introspect(dataType, operation)) {
- return true;
- }
- }
- }
- // FIXME: Should we honor the databinding from operation/interface
- // level?
- Class<?> physical = dataType.getPhysical();
- if (physical == Object.class) {
- dataType.setDataBinding(JavaBeansDataBinding.NAME);
- return false;
- }
- if (dataType.getPhysical().isArray()) {
- introspectArray(dataType, operation);
- return true;
- } else if (Throwable.class.isAssignableFrom(physical)) {
- dataType.setDataBinding(JavaExceptionDataBinding.NAME);
- return true;
- } else {
- dataType.setDataBinding(JavaBeansDataBinding.NAME);
- return false;
- }
- }
-
- private boolean introspectArray(DataType dataType, Operation operation) {
- Class<?> physical = dataType.getPhysical();
- if (!physical.isArray() || physical == byte[].class) {
- return false;
- }
- Class<?> componentType = physical.getComponentType();
- Type genericComponentType = componentType;
- if(dataType.getGenericType() instanceof GenericArrayType) {
- genericComponentType = ((GenericArrayType) dataType.getGenericType()).getGenericComponentType();
- }
- DataType logical = new DataTypeImpl(dataType.getDataBinding(), componentType, genericComponentType, dataType.getLogical());
- introspectType(logical, operation);
- dataType.setDataBinding("java:array");
- dataType.setLogical(logical);
- return true;
- }
-
- public DataType introspectType(Object value, Operation operation) {
- loadDataBindings();
- DataType dataType = null;
- for (DataBinding binding : databindings) {
- // don't introspect for JavaBeansDatabinding as all javatypes will
- // anyways match to its basetype
- // which is java.lang.Object. Default to this only if no databinding
- // results
- if (!binding.getName().equals(JavaBeansDataBinding.NAME)) {
- dataType = binding.introspect(value, operation);
- }
- if (dataType != null) {
- return dataType;
- }
- }
- return new DataTypeImpl<XMLType>(JavaBeansDataBinding.NAME, value.getClass(), XMLType.UNKNOWN);
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 10:22:58 +0000