| # 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. |
| # |
| |
| module Shell |
| module Commands |
| class SetVisibility < Command |
| def help |
| return <<-EOF |
| Set the visibility expression on one or more existing cells. |
| |
| Pass table name, visibility expression, and a dictionary containing |
| scanner specifications. Scanner specifications may include one or more |
| of: TIMERANGE, FILTER, STARTROW, STOPROW, ROWPREFIXFILTER, TIMESTAMP, or COLUMNS |
| |
| If no columns are specified, all columns will be included. |
| To include all members of a column family, leave the qualifier empty as in |
| 'col_family:'. |
| |
| The filter can be specified in two ways: |
| 1. Using a filterString - more information on this is available in the |
| Filter Language document attached to the HBASE-4176 JIRA |
| 2. Using the entire package name of the filter. |
| |
| Examples: |
| |
| hbase> set_visibility 't1', 'A|B', {COLUMNS => ['c1', 'c2']} |
| hbase> set_visibility 't1', '(A&B)|C', {COLUMNS => 'c1', |
| TIMERANGE => [1303668804, 1303668904]} |
| hbase> set_visibility 't1', 'A&B&C', {ROWPREFIXFILTER => 'row2', |
| FILTER => "(QualifierFilter (>=, 'binary:xyz')) AND |
| (TimestampsFilter ( 123, 456))"} |
| |
| This command will only affect existing cells and is expected to be mainly |
| useful for feature testing and functional verification. |
| EOF |
| end |
| |
| def command(table, visibility, scan) |
| t = table(table) |
| now = Time.now |
| scanner = t._get_scanner(scan) |
| count = 0 |
| iter = scanner.iterator |
| while iter.hasNext |
| row = iter.next |
| row.list.each do |cell| |
| put = org.apache.hadoop.hbase.client.Put.new(row.getRow) |
| put.add(cell) |
| t.set_cell_visibility(put, visibility) |
| t.table.put(put) |
| end |
| count += 1 |
| end |
| formatter.footer(now, count) |
| end |
| |
| end |
| end |
| end |