For example, in a scenario where the Oracle File and FTP Adapters receive files that are encrypted and zipped, you can configure a pipeline with an unzip valve followed by a decryption valve. A valve processes the content it receives and forwards the processed content to the next valve. A pipeline loads a stream from the file system, subjects the stream to processing by an ordered sequence of valves, and at the end of the processing returns the modified stream to the adapter.Ī valve is the primary component of execution in a processing pipeline. This section describes the concept of pipelines and valves.Ī pipeline consists of a series of custom-defined valves. The mechanism for pre-processing and post-processing of files is configured as pipelines and valves. Section 4.2.14.4, "Configuring Batch Notification Handler"Ĥ.2.14.1 Mechanism For Pre-Processing and Post-Processing of Files Section 4.2.14.3, "Using a Re-Entrant Valve For Processing Zip Files" Section 4.2.14.2, "Configuring a Pipeline" Section 4.2.14.1, "Mechanism For Pre-Processing and Post-Processing of Files" This section contains the following topics: The implementation of the pre-processing and post-processing of files is restricted to the following communication modes of the Oracle File and FTP Adapters: The Oracle File and FTP Adapters supports the use of custom code that can be plugged in for pre-processing or post-processing of files. In this case you must use a custom code to decompress or decrypt the files before processing. For example, the files that the Oracle File and FTP adapters receive may be compressed or encrypted and the adapter must decompress or decrypt the files before processing. The process modeler may encounter situations where files must be pre-processed before they are picked up for processing or post-processed before the files are written out to the destination folder. The outbound Oracle File and FTP Adapters have parameters for the outbound directory in which to write the file and the file naming convention to use.Ĥ.2.14 Pre-Processing and Post-Processing of Files The inbound Oracle File and FTP Adapters have parameters for the inbound directory where the input file appears and the frequency with which to poll the directory. This operation is known as a JCA outbound interaction.įor the inbound and outbound directions, the Oracle File and FTP Adapters use a set of configuration parameters. This functionality of the Oracle File and FTP Adapters is referred to as the file write operation. You can also specify a combination of these criteria for output files. The output files can be created based on the following criteria: time elapsed, file size, and number of messages. This operation is known as a Java Connector Architecture (JCA) inbound activation.įor outbound files sent from Oracle BPEL PM or Mediator, the Oracle File and FTP Adapters perform the following operations:įormat the XML contents as specified at design time. This functionality of the Oracle File and FTP Adapters is referred to as the file read operation, and the component that provides this function is the file reader. Publish the translated content as an XML message. Read and translate the file content based on the native schema (NXSD) defined at design time. Poll the file system looking for matches. Based on the direction, the Oracle File and FTP Adapters perform different sets of tasks.įor inbound files sent to Oracle BPEL PM or Mediator, the Oracle File and FTP Adapters perform the following operations: The Oracle File and FTP Adapters exchange files in the inbound and outbound directions. Section 4.3.8, "Oracle FTP Adapter File Listing Concepts"įor more information about Oracle JCA Adapter integration with Oracle BPEL PM, see Chapter 1, "Introduction to Oracle JCA Adapters." Section 4.3.7, "Oracle FTP Adapter Synchronous Get File Concepts" Synchronous Get File (outbound operation) Section 4.3.6, "Oracle FTP Adapter Put File Concepts" Section 4.3.5, "Oracle FTP Adapter Get File Concepts" Section 4.3.4, "Oracle File Adapter File Listing Concepts" Section 4.3.3, "Oracle File Adapter Synchronous Read Concepts" Synchronous Read File (outbound operation) Section 4.3.2, "Oracle File Adapter Write File Concepts" Section 4.3.1, "Oracle File Adapter Read File Concepts" Table 4-1 Supported Operations for Oracle BPEL Process Manager Operation
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