1 files changed, 92 insertions, 0 deletions
diff --git a/sandbox/sca-cloud-tutorial/cloud-google/src/main/java/org/apache/tuscany/sca/cloud/data/impl/DatastoreDocumentServiceImpl.java b/sandbox/sca-cloud-tutorial/cloud-google/src/main/java/org/apache/tuscany/sca/cloud/data/impl/DatastoreDocumentServiceImpl.java
new file mode 100644
index 0000000000..05a11f0338
--- /dev/null
+++ b/sandbox/sca-cloud-tutorial/cloud-google/src/main/java/org/apache/tuscany/sca/cloud/data/impl/DatastoreDocumentServiceImpl.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.cloud.data.impl;
+
+import java.util.UUID;
+
+import org.apache.tuscany.sca.cloud.data.DocumentService;
+import org.apache.tuscany.sca.data.collection.Entry;
+import org.apache.tuscany.sca.data.collection.NotFoundException;
+import org.oasisopen.sca.annotation.Init;
+
+import com.google.appengine.api.datastore.DatastoreService;
+import com.google.appengine.api.datastore.DatastoreServiceFactory;
+import com.google.appengine.api.datastore.Entity;
+import com.google.appengine.api.datastore.EntityNotFoundException;
+import com.google.appengine.api.datastore.Key;
+import com.google.appengine.api.datastore.KeyFactory;
+
+public class DatastoreDocumentServiceImpl implements DocumentService<Key, Entity> {
+    private DatastoreService googleDataStoreService;
+
+    @Init
+    public void init() {
+        googleDataStoreService = DatastoreServiceFactory.getDatastoreService();
+    }
+    
+    public Entry<Key, Entity>[] getAll() {
+        throw new UnsupportedOperationException();
+    }
+
+    public Entity get(Key key) throws NotFoundException {
+        Entity entity = null;
+        
+        try {
+            entity =  googleDataStoreService.get(key);
+        } catch(EntityNotFoundException nf) {
+            throw new NotFoundException(nf);
+        }
+
+        return entity;
+    }
+
+
+    public Key post(Key key, Entity entity) {
+
+        if( key == null ) {
+            key = KeyFactory.createKey("key", UUID.randomUUID().toString());
+        }
+        
+        return googleDataStoreService.put(entity);
+    }
+
+    public void put(Key key, Entity entity) throws NotFoundException {
+        if( get(key) == null) {
+            throw new NotFoundException("Could not find entity with key '" + key.toString() +"'");
+        }
+        
+        googleDataStoreService.put(entity);
+    }
+
+    public void delete(Key key) throws NotFoundException {
+        googleDataStoreService.delete(key);
+        
+    }
+
+    public void delete(Key... keys) throws NotFoundException {
+        googleDataStoreService.delete(keys);
+        
+    }
+
+    public Entry<Key, Entity>[] query(String query) {
+        throw new UnsupportedOperationException();
+    }
+
+}