Using Oracle Jolt

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Bulk Loading Oracle Tuxedo Services

As a systems administrator, you may have an existing Oracle Tuxedo application with multiple Oracle Tuxedo services. Manually creating these definitions in the repository database may take hours to complete. The Jolt Bulk Loader is a command utility that allows you to load multiple, previously defined Oracle Tuxedo services to the Jolt Repository database in a single step. Using the jbld program, the Bulk Loader utility reads the Oracle Tuxedo service definitions from the specified text file and bulk loads them into the Jolt Repository. The services are loaded to the repository database in one “bulk load.” After the services populate the Jolt Repository, you can create, edit, and group services with the Jolt Repository Editor.

This topic includes the following sections:

 


Using the Bulk Loader

The jbld program is a Java application. Before running the jbld command, set the CLASSPATH environment variable (or its equivalent) to point to the directory where the Jolt class directory (that is, jolt.jar and joltadmin.jar) is located. If the CLASSPATH variable is not set, the Java Virtual Machine (JVM) cannot locate any Jolt classes.

For security reasons, jbld does not use command-line arguments to specify user authentication information (user password or application password). Depending on the server’s security level, jbld automatically prompts the user for passwords.

The Bulk Loader utility gets its input from command-line arguments and from the input file.

Activating the Bulk Loader

  1. Type the following at the prompt (with the correct options):
  2. java bea.jolt.admin.jbld [-n][-p package][-u usrname][-r usrrole] //host:port filename

  3. Use Table 2-1 to correctly specify the command-line options.

Command-line Options

Table 2-1 Bulk Loader Command-line Options 
Option
Description
-u usrname
Specifies the username (default is your account name). (Mandatory if required by security.)
-r usrrole
Specifies the user role (default is admin). (Mandatory if required by security.)
-n
Validates input file against the current repository; no updates are made to the repository. (Optional)
-p package
Repository package name (default is BULKPKG).
//host:port
Specifies the JRLY or JSL address (host name and IP port number). (Mandatory)
filename
Specifies the file containing the service definitions. (Mandatory)

The Bulk Load File

The bulk load file is a text file that defines services and their associated parameters. The Bulk Loader loads the services defined in the bulk loader file into the Jolt Repository using the package name “BULKPKG” by default. The -p command overrides the default and you can give the package any name you choose. If another load is performed from a bulk loader file with the same -p option, all the services in the original package are deleted and a new package is created with the services from the new bulk loader file.

If a service exists in a package other than the package you name that uses the -p option, the Bulk Loader reports the conflict and does not load a service from the bulk loader file into the repository. Use the Repository Editor to remove duplicate services and load the bulk loader file again. See Using the Jolt Repository Editor for additional information.

 


Syntax of the Bulk Loader Data Files

Each service definition consists of service properties and parameters that have a set number of parameter properties. Each property is represented by a keyword and a value.

Keywords are divided into two levels:

Guidelines for Using Keywords

The jbld program reads the service definitions from a text file. To use the keywords, observe the guidelines in Table 2-2.

Table 2-2 Guidelines for Using Keywords 
Guideline
Example
Each keyword must be followed by an equal sign (=) and the value.
Correct: type=string
Incorrect: type
Only one keyword is allowed on each line.
Correct: type=string
Incorrect: type=string access=out
Any lines not having an equal sign (=) are ignored.
Correct: type=string
Incorrect: type string
Certain keywords only accept a well-defined set of values.
The keyword access accepts only these values: in, out, inout, noaccess
The input file can contain multiple service definitions.
service=INQUIRY
<service keywords and values>
service=DEPOSIT
<service keywords and values>
service=WITHDRAWAL
<service keywords and values>
service=TRANSFER
<service keywords and values>
Each service definition consists of multiple keywords and values.
service=DEPOSIT
export=true
inbuf=VIEW32
outbuf=VIEW32
inview=INVIEW
outview=OUTVIEW

Keyword Order in the Bulk Loader Data File

Keyword order must be maintained within the data files to ensure an error-free transfer during the bulk load.

The first keyword definition in the bulk loader data text file must be the initial service=<NAME> keyword definition (shown in the listing "Keyword Hierarchical Order in a Data File"). Following the service=<NAME> keyword, all remaining service keywords that apply to the named service must be specified before the first param=<NAME> definition. These remaining service keywords can be in any order.

All parameters associated with the service must be specified. Following each param=<NAME> keywords are all the parameter keywords that apply to the named parameter until the next occurrence of a parameter definition. These remaining parameter keywords can be in any order. When all the parameters associated with the first service are defined, specify a new service=<NAME> keyword definition.

Listing 2-1 lists the keyword hierarchical order in a data file.

Listing 2-1 Keyword Hierarchical Order in a Data File
service=<NAME>
<service keyword>=<value>
<service keyword>=<value>
<service keyword>=<value>
param=<NAME>
<parameter keyword>=<value>
<parameter keyword>=<value>
param=<NAME>
<parameter keyword>=<value>
<parameter keyword>=<value>

Using Service-Level Keywords and Values

A service definition must begin with the service=<NAME> keyword. Services using CARRAY, STRING, or XML buffer types should only have one parameter in the service. The recommended parameter name for a service that uses a CARRAY buffer type is CARRAY with carray as the data type. For a service that uses a STRING buffer type, the recommended parameter name is STRING with string as the data type. For a service that uses a XML buffer type, the recommended parameter name is XML with xml as the data type.

Table 2-3 contains the guidelines for use of the service-level keywords and acceptable values for each.

Table 2-3 Service-Level Keywords and Values 
Keyword
Value
service
Any Oracle Tuxedo service name
export
True or false (default is false)
inbuf/outbuf
Select one of these buffer types:
FML
FML32
VIEW
VIEW32
STRING
CARRAY
XML
X_OCTET
X_COMMON
X_C_TYPE
inview
Any view name for input parameters
(This keyword is optional only if one of the following buffer types is used: VIEW, VIEW32, X_COMMON, X_C_TYPE.)
outview
Any view name for output parameters (Optional)

Using Parameter-Level Keywords and Values

A parameter begins with the param=<NAME> keyword followed by a number of parameter keywords. It ends when another param or service keyword, or end-of-file is encountered. The parameters can be in any order after the param=<NAME> keyword.

Table 2-4 contains the guidelines for use of the parameter-level keywords and acceptable values for each.

Table 2-4 Parameter-Level Keywords and Values
Keyword
Values
param
Any parameter name
type
byte
short
integer
float
double
string
carray
xml
access
in
out
inout
noaccess
count
Maximum number of occurrences (default is 1). The value for unlimited occurrences is 0. Used only by the Repository Editor to format test screens.

 


Troubleshooting

If you encounter problems using the Bulk Loader utility, refer to Table 2-5. For a complete list of Bulk Loader utility error messages and solutions, see “System Messages.”

Table 2-5 Bulk Loader Troubleshooting Table
If . . .
Then . . .
The data file is not found
Check to ensure that the path is correct.
The keyword is invalid
Check to ensure that the keyword is valid for the package, service, or parameter.
The value of the keyword is null
Type a value for the keyword.
The value is invalid
Check to ensure that the value of a parameter is within the allocated range for that parameter.
The data type is invalid
Check to ensure that the parameter is using a valid data type.

 


Sample Bulk Load Data

Listing 2-2 contains a sample data file in the correct format using the UNIX command cat servicefile. This sample loads TRANSFER, LOGIN, and PAYROLL service definitions to the BULKPKG.

Listing 2-2 Sample Bulk Load Data
service=TRANSFER
export=true
inbuf=FML
outbuf=FML
param=ACCOUNT_ID
type=integer
access=in
count=2
param=SAMOUNT
type=string
access=in
param=SBALANCE
type=string
access=out
count=2
param=STATLIN
type=string
access=out
service=LOGIN
inbuf=VIEW
inview=LOGINS
outview=LOGINR
export=true
param=user
type=string
access=in
param=passwd
type=string
access=in
param=token
type=integer
access=out
service=PAYROLL
inbuf=FML
outbuf=FML
param=EMPLOYEE_NUM
type=integer
access=in
param=SALARY
type=float
access=inout
param=HIRE_DATE
type=string
access=inout

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