1 files changed, 105 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/loader/impl/StAXLoaderRegistryImpl.java b/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/loader/impl/StAXLoaderRegistryImpl.java
new file mode 100644
index 0000000000..1e9e8ec8fb
--- /dev/null
+++ b/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/loader/impl/StAXLoaderRegistryImpl.java
@@ -0,0 +1,105 @@
+/**
+ *
+ * Copyright 2005 The Apache Software Foundation
+ *
+ *  Licensed 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.core.loader.impl;
+
+import org.apache.tuscany.core.config.ConfigurationLoadException;
+import org.apache.tuscany.core.loader.StAXElementLoader;
+import org.apache.tuscany.core.loader.StAXLoaderRegistry;
+import org.apache.tuscany.core.loader.LoaderContext;
+import org.apache.tuscany.model.assembly.AssemblyContext;
+import org.apache.tuscany.model.assembly.AssemblyObject;
+import org.osoa.sca.annotations.Scope;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * @version $Rev$ $Date$
+ */
+@Scope("MODULE")
+public class StAXLoaderRegistryImpl implements StAXLoaderRegistry {
+    private final Map<QName, StAXElementLoader<? extends AssemblyObject>> loaders = new HashMap<QName, StAXElementLoader<? extends AssemblyObject>>();
+
+    private Monitor monitor;
+
+    @org.apache.tuscany.core.system.annotation.Monitor
+    public void setMonitor(Monitor monitor) {
+        this.monitor = monitor;
+    }
+
+    public <T extends AssemblyObject> void registerLoader(QName element, StAXElementLoader<T> loader) {
+        monitor.registeringLoader(element);
+        loaders.put(element, loader);
+    }
+
+    public <T extends AssemblyObject> void unregisterLoader(QName element, StAXElementLoader<T> loader) {
+        monitor.unregisteringLoader(element);
+        loaders.remove(element);
+    }
+
+    public AssemblyObject load(XMLStreamReader reader, LoaderContext loaderContext) throws XMLStreamException, ConfigurationLoadException {
+        QName name = reader.getName();
+        monitor.elementLoad(name);
+        StAXElementLoader<? extends AssemblyObject> loader = loaders.get(name);
+        if (loader == null) {
+            ConfigurationLoadException e = new ConfigurationLoadException("Unrecognized element");
+            e.setIdentifier(name.toString());
+            throw e;
+        } else {
+            return loader.load(reader, loaderContext);
+        }
+    }
+
+
+    private final ThreadLocal<AssemblyContext> modelContext = new ThreadLocal<AssemblyContext>();
+
+    @Deprecated
+    public AssemblyContext getContext() {
+        return modelContext.get();
+    }
+
+    @Deprecated
+    public void setContext(AssemblyContext context) {
+        modelContext.set(context);
+    }
+
+    public static interface Monitor {
+        /**
+         * Event emitted when a StAX element loader is registered.
+         *
+         * @param xmlType the QName of the element the loader will handle
+         */
+        void registeringLoader(QName xmlType);
+
+        /**
+         * Event emitted when a StAX element loader is unregistered.
+         *
+         * @param xmlType the QName of the element the loader will handle
+         */
+        void unregisteringLoader(QName xmlType);
+
+        /**
+         * Event emitted when a request is made to load an element.
+         *
+         * @param xmlType the QName of the element that should be loaded
+         */
+        void elementLoad(QName xmlType);
+    }
+}