Github user markap14 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2429#discussion_r175190618
--- Diff:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/LogarithmicallyPenalizeFlowFileProcessor.java
---
@@ -0,0 +1,122 @@
+package org.apache.nifi.processors.standard;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.components.Validator;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.util.StandardValidators;
+
+public class LogarithmicallyPenalizeFlowFileProcessor extends
AbstractProcessor {
+
+ private static final PropertyDescriptor INITIAL_RECONNECT_TIMEOUT =
new PropertyDescriptor.Builder()
+ .name("initialReconnectTimeout")
+ .displayName("InitialReconnectTimeoutMs")
+ .description("First delay length after first FlowFile arrival
in millis")
+ .defaultValue("50")
+ .required(true)
+ .expressionLanguageSupported(false)
+ .addValidator(StandardValidators.POSITIVE_INTEGER_VALIDATOR)
+ .build();
+
+ private static final PropertyDescriptor MAXIMAL_RECONNECT_TIMEOUT =
new PropertyDescriptor.Builder()
+ .name("maximalReconnectTimeout")
+ .displayName("MaximalReconnectTimeoutMs")
+ .description("Maximal delay length after first FlowFile
arrival in millis")
+ .defaultValue(""+10*60*1000)//10 minutes
+ .required(true)
+ .expressionLanguageSupported(false)
+ .addValidator(StandardValidators.POSITIVE_INTEGER_VALIDATOR)
+ .build();
+
+ private static final PropertyDescriptor MAXIMAL_NUMBER_OF_RETRIES =
new PropertyDescriptor.Builder()
+ .name("maximalNumberOfRetries")
+ .displayName("maximalNumberOfRetries")
+ .description("Maximal number of retries to allow")
+ .defaultValue("10")
+ .required(true)
+ .expressionLanguageSupported(false)
+ .addValidator(StandardValidators.POSITIVE_INTEGER_VALIDATOR)
+ .build();
+
+ private static final PropertyDescriptor RETRY_COUNT_PROPERTY = new
PropertyDescriptor.Builder()
+ .name("retryCountProperty")
+ .displayName("RetryCountProperty")
+ .description("Name of attribute in which number of retries
should be stored.")
+ .required(true)
+ .expressionLanguageSupported(false)
+ .addValidator(new Validator() {
+ @Override
+ public ValidationResult validate(String subject, String
input, ValidationContext context) {
+ return new
ValidationResult.Builder().valid(true).build();
+ }
+ })
+ .build();
--- End diff --
I would think that most people won't actually care what attribute is used
here, so I would set a default value so that users don't have to bother setting
it.
---
