Finish HBase day 1 homework

hbase/homework.md

@@ -2,7 +2,7 @@
 
 ## Day 1
 
-### 1.
+### Find, 1.
 
 Delete an individual column value in a row:
 
@@ -16,6 +16,42 @@ Delete an entire row:
 deleteall 'wiki', 'Home'
 ```
 
-### 2.
+### Find, 2.
 
 [Apache HBase Reference Guide, version 1.2](https://hbase.apache.org/1.2/book.html)
+
+### Do, 1.
+
+```
+import 'org.apache.hadoop.hbase.client.HTable'
+import 'org.apache.hadoop.hbase.client.Put'
+
+def jbytes( *args )
+ args.map { |arg| arg.to_s.to_java_bytes }
+end
+
+def put_many( table_name, row, column_values )
+ table = HTable.new( @hbase.configuration, table_name )
+
+ p = Put.new( *jbytes( row ) )
+
+ column_values.each do |key, value|
+ family, qualifier = key.split(':', 2)
+ p.add( *jbytes( family, qualifier, value ) )
+ end
+
+ table.put( p )
+end
+```
+
+### Do, 2.
+
+```
+hbase(main):061:0* put_many 'wiki', 'Some title', { "text:" => "Some article text", "revision:author" => "jschmoe", "revision:comment" => "no comment" }
+hbase(main):062:0> get 'wiki', 'Some title'
+COLUMN CELL
+ revision:author timestamp=1480209352877, value=jschmoe
+ revision:comment timestamp=1480209352877, value=no comment
+ text: timestamp=1480209352877, value=Some article text
+3 row(s) in 0.0230 seconds
+```