1 files changed, 99 insertions, 0 deletions
diff --git a/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/loader/ServiceLoader.java b/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/loader/ServiceLoader.java
new file mode 100644
index 0000000000..c5be797cda
--- /dev/null
+++ b/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/loader/ServiceLoader.java
@@ -0,0 +1,99 @@
+/*
+ * 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.core.loader;
+
+import java.net.URI;
+import javax.xml.namespace.QName;
+import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
+import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.XMLStreamReader;
+
+import static org.osoa.sca.Constants.SCA_NS;
+import org.osoa.sca.annotations.Constructor;
+import org.osoa.sca.annotations.Reference;
+
+import org.apache.tuscany.spi.QualifiedName;
+import org.apache.tuscany.spi.deployer.DeploymentContext;
+import org.apache.tuscany.spi.extension.LoaderExtension;
+import org.apache.tuscany.spi.loader.LoaderException;
+import org.apache.tuscany.spi.loader.LoaderRegistry;
+import org.apache.tuscany.spi.loader.UnrecognizedElementException;
+import org.apache.tuscany.spi.model.BindingDefinition;
+import org.apache.tuscany.spi.model.ModelObject;
+import org.apache.tuscany.spi.model.ServiceContract;
+import org.apache.tuscany.spi.model.ServiceDefinition;
+
+/**
+ * Loads a service definition from an XML-based assembly file
+ *
+ * @version $Rev$ $Date$
+ */
+public class ServiceLoader extends LoaderExtension<ServiceDefinition> {
+    private static final QName SERVICE = new QName(SCA_NS, "service");
+
+    @Constructor
+    public ServiceLoader(@Reference LoaderRegistry registry) {
+        super(registry);
+    }
+
+    public QName getXMLType() {
+        return SERVICE;
+    }
+
+    public ServiceDefinition load(ModelObject object, XMLStreamReader reader, DeploymentContext context)
+        throws XMLStreamException, LoaderException {
+        assert SERVICE.equals(reader.getName());
+        String name = reader.getAttributeValue(null, "name");
+        URI compositeId = context.getComponentId();
+        URI componentBase = URI.create(compositeId + "/");
+        ServiceDefinition def = new ServiceDefinition();
+        def.setUri(compositeId.resolve('#' + name));
+
+        URI targetUri = null;
+        String promote = reader.getAttributeValue(null, "promote");
+        if (promote != null) {
+            QualifiedName qName = new QualifiedName(promote);
+            targetUri = componentBase.resolve(qName.getFragment());
+        }
+        while (true) {
+            int i = reader.next();
+            switch (i) {
+                case START_ELEMENT:
+                    ModelObject o = registry.load(null, reader, context);
+                    if (o instanceof ServiceContract) {
+                        def.setServiceContract((ServiceContract) o);
+                    } else if (o instanceof BindingDefinition) {
+                        def.addBinding((BindingDefinition) o);
+                    } else {
+                        throw new UnrecognizedElementException(reader.getName());
+                    }
+                    break;
+                case END_ELEMENT:
+                    if (SERVICE.equals(reader.getName())) {
+                        if (targetUri != null) {
+                            def.setTarget(targetUri);
+                        }
+                        return def;
+                    }
+                    break;
+            }
+        }
+    }
+}