Contents
This adapter sample illustrates the use of the Spotfire Streaming File Monitor Adapter, which watches a directory or specific file for changes and emits tuples that describe file system changes as they occur.
In StreamBase Studio, import this sample with the following steps:
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From the top-level menu, select >.
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Enter
filemto narrow the list of options. -
Select File monitor input adapter from the StreamBase Standard Adapters category.
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Click .
StreamBase Studio creates a single project containing the sample files.
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In the Project Explorer view, open the sample you just loaded.
If you see red marks on a project folder, wait a moment for the project to load its features.
If the red marks do not resolve themselves after a minute, select the project, right-click, and select > from the context menu.
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Open the
src/main/eventflow/folder.packageName -
Open the
filemonitor.sbappfile and click the
Run button. This opens the SB
Test/Debug perspective and starts the module.
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By default the file monitor sample is set up to monitor your Java temp directory. If you want to monitor another folder:
In the Manual Input view, select the Control stream.
Enter a path for path, and
truefor the remaining fields and click . -
In the Output Streams view, observe tuples emitted on the
FileMonitorStatusoutput stream -
Use a command window or file system tool to modify the folders and files inside the TestFolder or add and delete other files and folders. Observe the content of tuples emitted on the
FileNotificationsoutput stream. -
Press F9 or click the
Terminate EventFlow Fragment button.
When you load the sample into StreamBase® Studio, Studio copies the sample project's files to your Studio workspace, which is normally part of your home directory, with full access rights.
Important
Load this sample in StreamBase® Studio, and thereafter use the Studio workspace copy of the sample to run and test it, even when running from the command prompt.
Using the workspace copy of the sample avoids permission problems. The default workspace location for this sample is:
studio-workspace/sample_adapter_embedded_filemonitor
See Default Installation
Directories for the default location of studio-workspace on your system.