1 files changed, 92 insertions, 0 deletions
diff --git a/collaboration/GSoC-2011-Eranda/hbase/src/main/java/org/apache/tuscany/nosqldatastore/hbase/HBaseDatatabase.java b/collaboration/GSoC-2011-Eranda/hbase/src/main/java/org/apache/tuscany/nosqldatastore/hbase/HBaseDatatabase.java
new file mode 100644
index 0000000000..5d49fd76da
--- /dev/null
+++ b/collaboration/GSoC-2011-Eranda/hbase/src/main/java/org/apache/tuscany/nosqldatastore/hbase/HBaseDatatabase.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.nosqldatastore.hbase;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.*;
+import org.apache.hadoop.hbase.client.HBaseAdmin;
+import org.apache.hadoop.hbase.client.HTable;
+import org.apache.tuscany.nosqldatastore.Database;
+import org.apache.tuscany.nosqldatastore.Group;
+
+import java.io.IOException;
+
+public class HBaseDatatabase implements Database{
+    
+    private HTable table;
+    private HBaseAdmin admin;
+
+    HBaseDatatabase(String dbname, HBaseAdmin admin){
+        Configuration conf = HBaseConfiguration.create();
+        try {
+            try{
+                HTableDescriptor descriptor = new HTableDescriptor(dbname);
+                admin.createTable(descriptor);
+            } catch (MasterNotRunningException e) {
+                e.printStackTrace();
+            } catch (ZooKeeperConnectionException e) {
+                e.printStackTrace();
+            } catch (TableExistsException e){
+                System.out.println("connected to existing database....");
+            } finally {
+                table = new HTable(conf,dbname);
+                System.out.println(new String(table.getTableName()));
+                this.admin = admin;
+                table.flushCommits();
+            }
+        }catch (IOException ex) {
+            ex.printStackTrace();
+        }
+
+    }
+
+    public Group createGroup(String groupId) {
+
+        HColumnDescriptor cf= new HColumnDescriptor(groupId.getBytes());
+
+        try {
+            admin.disableTable(table.getTableName());
+            admin.addColumn(table.getTableName(),cf);
+            admin.enableTable(table.getTableName());
+        } catch (IOException e) {
+            System.out.println("Error: Creating the group "+groupId);
+            e.printStackTrace();
+        }
+
+        Group group = new HBaseGroup(table, groupId);
+        return group;
+    }
+
+    public Group getGroup(String groupId) {
+        Group group = new HBaseGroup(table, groupId);
+        return group;
+    }
+
+    public void deleteGroup(String groupId) {
+        try {
+            admin.disableTable(table.getTableName());
+            admin.deleteColumn(table.getTableName(),groupId.getBytes());
+            admin.enableTable(table.getTableName());
+        } catch (IOException e) {
+            System.out.println("Error: Deleting the group "+groupId);
+            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
+        }
+    }
+}