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https://issues.apache.org/jira/browse/NIFI-2142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15376172#comment-15376172
]
ASF GitHub Bot commented on NIFI-2142:
--------------------------------------
Github user JPercivall commented on a diff in the pull request:
https://github.com/apache/nifi/pull/609#discussion_r70738325
--- Diff:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/TransformXml.java
---
@@ -76,25 +84,59 @@
.name("XSLT file name")
.description("Provides the name (including full path) of the
XSLT file to apply to the flowfile XML content.")
.required(true)
+ .expressionLanguageSupported(true)
.addValidator(StandardValidators.FILE_EXISTS_VALIDATOR)
.build();
+ public static final PropertyDescriptor INDENT_OUTPUT = new
PropertyDescriptor.Builder()
+ .name("indent-output")
+ .displayName("Indent")
+ .description("Whether or not to indent the output.")
+ .required(true)
+ .defaultValue("true")
+ .allowableValues("true", "false")
+ .addValidator(StandardValidators.BOOLEAN_VALIDATOR)
+ .build();
+
+ public static final PropertyDescriptor CACHE_SIZE = new
PropertyDescriptor.Builder()
+ .name("cache-size")
+ .displayName("Cache size")
+ .description("Maximum size of the stylesheet cache.")
+ .required(true)
+ .defaultValue("100")
+
.addValidator(StandardValidators.NON_NEGATIVE_INTEGER_VALIDATOR)
+ .build();
+
+ public static final PropertyDescriptor CACHE_DURATION = new
PropertyDescriptor.Builder()
+ .name("cache-duration")
+ .displayName("Cache duration")
+ .description("How long to keep stylesheets in the cache.")
--- End diff --
This property is misleading. What I initially thought it to be was how long
the stylesheets will exist in the cache (deleted after 60s). What it actually
is, is an expiration time where after 60s of it not being used it will be
removed.
> Cache compiled XSLT in TransformXml
> -----------------------------------
>
> Key: NIFI-2142
> URL: https://issues.apache.org/jira/browse/NIFI-2142
> Project: Apache NiFi
> Issue Type: Improvement
> Reporter: Joey Frazee
> Fix For: 1.0.0
>
>
> TransformXml appears to be recompiling the XSLT on every onTrigger event,
> which is slow. It should cache the compiled stylesheets.
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