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Chapter 4 The following are the attributes of the previous URL: • id: This specifies the native WSDF name for the WSDL. • mappolicy: There are three options for this: pack, raw, and mtom. • toolkit: There are two options for this: wls and axis. You can use these options only when you are using the raw type of mappolicy. SALT supports the WebLogic server (wls) and axis for SOAP with attachments; the default value is wls. In the previous section, we have discussed how to administrate, tune, and monitor the GWWS server using various command-line utilities. Administrating the SCA components In this section, we will discuss how to administrate and monitor Tuxedo's SCA components. From the administrator's point of view, we can turn on the trace for SCA server/client and check them. For monitoring, we can use the command-line utility. Let us discuss these options briefly. Tracing the SCA ATMI server and client Tuxedo provides the tracing capability through the tmtrace() function, and it can be used for SCA ATMI servers and clients. All the messages are logged in the ULOG file as you set the TMTRACE environment variable, TMTRACE=atmi:ulog. There are two environment variables for SCA runtime and reference binding and tracing, which can be used for Tuxedo server builds using buildscaserver and SCA client builds using buildscaclient: • SCACPP_LOGGING: This numerical value is used to define the number of trace messages produced • SCACPP_ULOG: You need to set the value to yes to send the trace messages to the ULOG file For the SCA JTMI client, if you set the $APPDIR variable or the com.oracle.jatmi. APPDIR Java property is specified, you will see multiple logfiles (for example, jatmi.log) under $APPDIR. By default, there will be 10 logfiles with the maximum size of 1 MB, and files are overwritten as you start the application. [ 119 ] www.it-ebooks.info
SALT – Service Architecture Leveraging Tuxedo Monitoring the SCA servers The command-line utility scaadmin is to monitor the SCA servers, and it shows various service-related information and enables administrative tasks. You must set the TUXCONFIG environment variable accordingly as you run this utility. Here we will discuss the various options (subcommands) for scaadmin, which can be used for monitoring purposes: • default: This sets the machine name, group name, server ID, or server name to default. • reload: This dynamically reloads the SCA components hosted in a Tuxedo server. There are some limitations with some OSs for reloading. • printstats: This displays the list of services within the Tuxedo environment, as well as the related methods, number of queries, and status. • verbose: This is used to turn on the verbose mode. • echo: This is used to echo the input on/off. • quit: This is used to exit a session. In this section, we have discussed most of the administrative tasks that should be performed in conjunction with tasks involved with the SALT configuration. We have also briefly brought up tuning issues and the various aspects of it. SALT programming SALT programming involves mainly two areas, namely web services programming and SCA programming, which are very much standard programing practices today. In this section, I will briefly introduce the programming paradigms for SALT, but I do not intend to go into the details, as we do want to cover how to do web service / SCA programing in this small book. Most of the SALT-related APIs are listed in the table in one of the previous sections of this chapter; we will be using them along with our web service / SCA programming knowledge. Web services programming As we have previously discussed, SALT provides bi-directional communication between the Tuxedo applications and web-service-based applications, and any existing Tuxedo services can be easily exposed as a web services without much coding. SALT helps you create a WSDL file that describes the Tuxedo web service contract so that any standard web service client can call or access Tuxedo services. [ 120 ] www.it-ebooks.info
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Getting Started with Oracle Tuxedo
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About the Author Biru Chattopadhaya
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Preface What this book covers Chapt
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Preface When we wish to draw your a
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Getting Started with Tuxedo Some of
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Getting Started with Tuxedo Tuxedo
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Getting Started with Tuxedo • Dis
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Getting Started with Tuxedo Install
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Getting Started with Tuxedo Summary
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Configuration and Administration of
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