jyWXWF7i

1declare -a table_names=("Table_1;['t1']" "Table_2;['t1','t2']")
2	
3for i in "${table_names[@]}"
4do
5
6done
7	
8set -- "$i"
9IFS=";"; declare -a table_name_info=($*)
10	
11echo "exists '${table_name_info[0]}'" | hbase shell > log 2>&1
12	
13cat log | grep -q 'Table '${table_name_info[0]}' does exist'
14
15if [ $? = 0 ]; then
16    ## log message
17else
18    ## write script to create a table
19fi
20	
21#!/bin/sh
22
23echo "Running the <$0> file"
24
25## table names 
26declare -a table_names=("Table_1;['t1']" "Table_2;['t1','t2']")
27
28function tableExists {
29    echo "Table <$1> already exists."
30}
31
32function createTable {
33    echo "Table <$1> does not exist."
34    echo "Creating the Table <$1>"
35
36    echo "create '$1', $2" | hbase shell  > log 2>&1
37    cat log | grep -q '0 row(s) in'
38
39    if [ $? = 0 ]; then
40        echo "Table <$1> created successfully."
41    else 
42      echo "Table <$1> is not created."
43    fi
44}
45
46
47## iterating table names and checking table already exists. if does not exist creating table. 
48for i in "${table_names[@]}"
49do
50        ## splitting the table based on ';'. First argument will be 'table_name' and second argument will be 'column_families'
51        set -- "$i"
52        IFS=";"; declare -a table_name_info=($*)
53
54        echo ""
55        echo "Checking the table <${table_name_info[0]}> exists or not"
56        echo ""
57
58        echo "exists '${table_name_info[0]}'" | hbase shell > log 2>&1
59        cat log | grep -q 'Table '${table_name_info[0]}' does exist'
60
61        if [ $? = 0 ]; then
62            tableExists ${table_name_info[0]}
63        else
64            createTable ${table_name_info[0]} ${table_name_info[1]}
65        fi
66done
67
68## deleting the log file.
69rm -rf log
70echo ""
71echo "done."
72
73exit