mattyb149 commented on a change in pull request #3543: NIFI-6388 Add dynamic
relationships to the ExecuteScript processor.
URL: https://github.com/apache/nifi/pull/3543#discussion_r409217467
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File path:
nifi-nar-bundles/nifi-scripting-bundle/nifi-scripting-processors/src/main/java/org/apache/nifi/processors/script/ExecuteScript.java
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@@ -61,23 +64,41 @@
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
-import java.util.HashSet;
+import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentSkipListSet;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+
+import static
org.apache.nifi.script.ScriptingComponentUtils.DYNAMIC_RELATIONSHIP_PREFIX;
+import static
org.apache.nifi.script.ScriptingComponentUtils.USE_DYNAMIC_RELATIONSHIPS;
@Tags({"script", "execute", "groovy", "python", "jython", "jruby", "ruby",
"javascript", "js", "lua", "luaj", "clojure"})
@CapabilityDescription("Experimental - Executes a script given the flow file
and a process session. The script is responsible for "
+ "handling the incoming flow file (transfer to SUCCESS or remove,
e.g.) as well as any flow files created by "
+ "the script. If the handling is incomplete or incorrect, the session
will be rolled back. Experimental: "
+ "Impact of sustained usage not yet verified.")
@DynamicProperty(
- name = "A script engine property to update",
- value = "The value to set it to",
+ name = "A script engine property to update, or a dynamic relationship
(if the property starts with \"REL_\" and USE_DYNAMIC_RELATIONSHIPS is set to
true). "
+ + "For dynamic relationships, the prefix \"REL_\" will be
removed from the property name",
+ value = "The value to set it to. For a dynamic relationship, the value
will become the documentation of that relationship",
expressionLanguageScope = ExpressionLanguageScope.FLOWFILE_ATTRIBUTES,
description = "Updates a script engine property specified by the
Dynamic Property's key with the value "
- + "specified by the Dynamic Property's value")
+ + "specified by the Dynamic Property's value, or creates a
dynamic relationship with the value becoming "
+ + "the documentation of that relationship")
+@DynamicRelationship(
+ name = "A relationship to add",
+ description = "If a dynamic property starts with \"REL_\" and
USE_DYNAMIC_RELATIONSHIPS is set to true, it is assumed to be the name of a
dynamic "
+ + "relationship to add. In that case, the prefix \"REL_\" will be
removed from the actual name of the "
Review comment:
If you change the use of the dynamic relationships' names and properties,
the doc should be updated as well to reflect that behavior.
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