diff options
Diffstat (limited to 'collaboration/GSoC-2011-Eranda/hbase/src/main/java/org/apache/tuscany/nosqldatastore/hbase/HBaseGroup.java')
-rw-r--r-- | collaboration/GSoC-2011-Eranda/hbase/src/main/java/org/apache/tuscany/nosqldatastore/hbase/HBaseGroup.java | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/collaboration/GSoC-2011-Eranda/hbase/src/main/java/org/apache/tuscany/nosqldatastore/hbase/HBaseGroup.java b/collaboration/GSoC-2011-Eranda/hbase/src/main/java/org/apache/tuscany/nosqldatastore/hbase/HBaseGroup.java new file mode 100644 index 0000000000..f57b70ee60 --- /dev/null +++ b/collaboration/GSoC-2011-Eranda/hbase/src/main/java/org/apache/tuscany/nosqldatastore/hbase/HBaseGroup.java @@ -0,0 +1,81 @@ +/* + * 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.hbase.HColumnDescriptor; +import org.apache.hadoop.hbase.HTableDescriptor; +import org.apache.hadoop.hbase.client.*; +import org.apache.tuscany.nosqldatastore.Group; + +import java.io.IOException; +import java.util.HashMap; +import java.util.Map; + +public class HBaseGroup implements Group { + + private HTable table; + private String cf; + + HBaseGroup(HTable table, String cf){ + this.table = table; + this.cf = cf; + } + + public void addEntry(String key, Object value) { + Put put = new Put(key.getBytes()); + put.add(cf.getBytes(),key.getBytes(),((String)value).getBytes()); + try { + table.put(put); + table.flushCommits(); + } catch (IOException e) { + System.out.println("Error: Adding the entry for the Key "+key); + e.printStackTrace(); + } + + } + + public void updateEntry(String key, Object value) { + addEntry(key,value); + } + + public void deleteEntry(String key) { + Delete delete = new Delete(key.getBytes()); + delete.deleteColumn(cf.getBytes(), key.getBytes()); + try { + table.delete(delete); + table.flushCommits(); + } catch (IOException e) { + System.out.println("Error: Deleting the entry for the Key "+key); + e.printStackTrace(); + } + } + + public Object getValue(String key) { + Result result = null; + Get get = new Get(key.getBytes()); + try { + result = table.get(get); + } catch (IOException e) { + System.out.println("Error: Retrieving the value or the Key "+key); + e.printStackTrace(); + } + return new String(result.getValue(cf.getBytes(),key.getBytes())); + } +} |