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https://issues.apache.org/jira/browse/NIFI-985?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14902663#comment-14902663
]
ASF GitHub Bot commented on NIFI-985:
-------------------------------------
Github user apiri commented on a diff in the pull request:
https://github.com/apache/nifi/pull/90#discussion_r40088113
--- Diff:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/LogAttribute.java
---
@@ -123,11 +131,15 @@ protected void init(final
ProcessorInitializationContext context) {
protected String processFlowFile(final ProcessorLog logger, final
DebugLevels logLevel, final FlowFile flowFile, final ProcessSession session,
final ProcessContext context) {
final Set<String> attributeKeys =
getAttributesToLog(flowFile.getAttributes().keySet(), context);
final ProcessorLog LOG = getLogger();
-
+ String logPrefix = context.getProperty(LOG_PREFIX).getValue();
// Pretty print metadata
final StringBuilder message = new StringBuilder();
message.append("logging for flow file ").append(flowFile);
message.append("\n");
+ if (logPrefix != null) {
+ message.append(logPrefix);
+ message.append(" ");
+ }
message.append(FIFTY_DASHES);
--- End diff --
Since we are changing the output format would like to see a String.format
or something similar to give a consistent width with number of dashes.
> Custom log prefix for LogAttribute processor
> --------------------------------------------
>
> Key: NIFI-985
> URL: https://issues.apache.org/jira/browse/NIFI-985
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Reporter: Joe Mészáros
> Priority: Minor
> Labels: improvement, log
> Attachments: log_prefix.png
>
>
> When you have a data flow with a bunch of LogAttribute processors it is
> really hard to identify the right LogAttribute processor in the log file and
> distinguish the output of different LogAttribute processors.
> There is a new property, called log prefix, which helps the user to set a
> custom log prefix for each Log Attribute processor, which will appear in the
> log output of the processor.
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