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Copy pathWorking_with_Expression_Languages.xml
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Working_with_Expression_Languages.xml
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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<template encoding-version="1.2">
<description></description>
<groupId>7c84501d-d10c-407c-b9f3-1d80e38fe36a</groupId>
<name>Working with Expression Languages</name>
<snippet>
<processGroups>
<id>c63a5a13-5090-3f84-0000-000000000000</id>
<parentGroupId>46f95fe5-3024-31d8-0000-000000000000</parentGroupId>
<position>
<x>0.0</x>
<y>0.0</y>
</position>
<comments></comments>
<contents>
<connections>
<id>06e67bff-2269-3478-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<backPressureDataSizeThreshold>1 GB</backPressureDataSizeThreshold>
<backPressureObjectThreshold>10000</backPressureObjectThreshold>
<destination>
<groupId>c63a5a13-5090-3f84-0000-000000000000</groupId>
<id>4ecf5970-ebeb-33b0-0000-000000000000</id>
<type>PROCESSOR</type>
</destination>
<flowFileExpiration>0 sec</flowFileExpiration>
<labelIndex>1</labelIndex>
<loadBalanceCompression>DO_NOT_COMPRESS</loadBalanceCompression>
<loadBalancePartitionAttribute></loadBalancePartitionAttribute>
<loadBalanceStatus>LOAD_BALANCE_NOT_CONFIGURED</loadBalanceStatus>
<loadBalanceStrategy>DO_NOT_LOAD_BALANCE</loadBalanceStrategy>
<name></name>
<selectedRelationships>success</selectedRelationships>
<source>
<groupId>c63a5a13-5090-3f84-0000-000000000000</groupId>
<id>312d267c-ffd9-36c5-0000-000000000000</id>
<type>PROCESSOR</type>
</source>
<zIndex>0</zIndex>
</connections>
<connections>
<id>13d4c365-6311-3be4-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<backPressureDataSizeThreshold>1 GB</backPressureDataSizeThreshold>
<backPressureObjectThreshold>10000</backPressureObjectThreshold>
<destination>
<groupId>c63a5a13-5090-3f84-0000-000000000000</groupId>
<id>34e02ed6-49fc-3e3b-0000-000000000000</id>
<type>PROCESSOR</type>
</destination>
<flowFileExpiration>0 sec</flowFileExpiration>
<labelIndex>1</labelIndex>
<loadBalanceCompression>DO_NOT_COMPRESS</loadBalanceCompression>
<loadBalancePartitionAttribute></loadBalancePartitionAttribute>
<loadBalanceStatus>LOAD_BALANCE_NOT_CONFIGURED</loadBalanceStatus>
<loadBalanceStrategy>DO_NOT_LOAD_BALANCE</loadBalanceStrategy>
<name></name>
<selectedRelationships>success</selectedRelationships>
<source>
<groupId>c63a5a13-5090-3f84-0000-000000000000</groupId>
<id>4ecf5970-ebeb-33b0-0000-000000000000</id>
<type>PROCESSOR</type>
</source>
<zIndex>0</zIndex>
</connections>
<connections>
<id>3d4b05b9-fc62-3b67-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<backPressureDataSizeThreshold>1 GB</backPressureDataSizeThreshold>
<backPressureObjectThreshold>10000</backPressureObjectThreshold>
<destination>
<groupId>c63a5a13-5090-3f84-0000-000000000000</groupId>
<id>618ee31c-061a-3701-0000-000000000000</id>
<type>OUTPUT_PORT</type>
</destination>
<flowFileExpiration>0 sec</flowFileExpiration>
<labelIndex>1</labelIndex>
<loadBalanceCompression>DO_NOT_COMPRESS</loadBalanceCompression>
<loadBalancePartitionAttribute></loadBalancePartitionAttribute>
<loadBalanceStatus>LOAD_BALANCE_NOT_CONFIGURED</loadBalanceStatus>
<loadBalanceStrategy>DO_NOT_LOAD_BALANCE</loadBalanceStrategy>
<name></name>
<selectedRelationships>success</selectedRelationships>
<source>
<groupId>c63a5a13-5090-3f84-0000-000000000000</groupId>
<id>319e8fb0-f5b2-3834-0000-000000000000</id>
<type>PROCESSOR</type>
</source>
<zIndex>0</zIndex>
</connections>
<connections>
<id>dc8f93bf-8537-3394-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<backPressureDataSizeThreshold>1 GB</backPressureDataSizeThreshold>
<backPressureObjectThreshold>10000</backPressureObjectThreshold>
<destination>
<groupId>c63a5a13-5090-3f84-0000-000000000000</groupId>
<id>319e8fb0-f5b2-3834-0000-000000000000</id>
<type>PROCESSOR</type>
</destination>
<flowFileExpiration>0 sec</flowFileExpiration>
<labelIndex>1</labelIndex>
<loadBalanceCompression>DO_NOT_COMPRESS</loadBalanceCompression>
<loadBalancePartitionAttribute></loadBalancePartitionAttribute>
<loadBalanceStatus>LOAD_BALANCE_NOT_CONFIGURED</loadBalanceStatus>
<loadBalanceStrategy>DO_NOT_LOAD_BALANCE</loadBalanceStrategy>
<name></name>
<selectedRelationships>success</selectedRelationships>
<source>
<groupId>c63a5a13-5090-3f84-0000-000000000000</groupId>
<id>34e02ed6-49fc-3e3b-0000-000000000000</id>
<type>PROCESSOR</type>
</source>
<zIndex>0</zIndex>
</connections>
<labels>
<id>1bbe5cee-15c9-3a4d-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<position>
<x>1142.951259290122</x>
<y>514.6532486230138</y>
</position>
<height>35.459306716918945</height>
<label>notice the use of various tests to evaluate that logic is working as I started to make things more complicated</label>
<style>
<entry>
<key>font-size</key>
<value>12px</value>
</entry>
</style>
<width>628.84375</width>
</labels>
<labels>
<id>b0dfa172-fe15-3b34-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<position>
<x>1148.1772114385594</x>
<y>306.7062881737951</y>
</position>
<height>35.459306716918945</height>
<label>creating the combined url here as the attribute and string combination was not accepting in the ifElse argument</label>
<style>
<entry>
<key>font-size</key>
<value>12px</value>
</entry>
</style>
<width>628.84375</width>
</labels>
<labels>
<id>eb9e8224-6a5f-3b8f-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<position>
<x>1159.3131437486866</x>
<y>68.07983705044191</y>
</position>
<height>35.459312438964844</height>
<label>leaving attributeC empty for testing logic</label>
<style>
<entry>
<key>font-size</key>
<value>12px</value>
</entry>
</style>
<width>248.63223266601562</width>
</labels>
<outputPorts>
<id>618ee31c-061a-3701-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<position>
<x>787.0559819293667</x>
<y>721.9163325008785</y>
</position>
<concurrentlySchedulableTaskCount>1</concurrentlySchedulableTaskCount>
<name>output</name>
<state>STOPPED</state>
<type>OUTPUT_PORT</type>
<validationErrors>'Port 'output'' is invalid because Output connection for port 'output' is not defined.</validationErrors>
</outputPorts>
<processors>
<id>312d267c-ffd9-36c5-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<position>
<x>737.7397178278791</x>
<y>-133.95722945233513</y>
</position>
<bundle>
<artifact>nifi-standard-nar</artifact>
<group>org.apache.nifi</group>
<version>1.9.0.3.4.1.1-4</version>
</bundle>
<config>
<bulletinLevel>WARN</bulletinLevel>
<comments></comments>
<concurrentlySchedulableTaskCount>1</concurrentlySchedulableTaskCount>
<descriptors>
<entry>
<key>File Size</key>
<value>
<name>File Size</name>
</value>
</entry>
<entry>
<key>Batch Size</key>
<value>
<name>Batch Size</name>
</value>
</entry>
<entry>
<key>Data Format</key>
<value>
<name>Data Format</name>
</value>
</entry>
<entry>
<key>Unique FlowFiles</key>
<value>
<name>Unique FlowFiles</name>
</value>
</entry>
<entry>
<key>generate-ff-custom-text</key>
<value>
<name>generate-ff-custom-text</name>
</value>
</entry>
<entry>
<key>character-set</key>
<value>
<name>character-set</name>
</value>
</entry>
</descriptors>
<executionNode>ALL</executionNode>
<lossTolerant>false</lossTolerant>
<penaltyDuration>30 sec</penaltyDuration>
<properties>
<entry>
<key>File Size</key>
<value>0B</value>
</entry>
<entry>
<key>Batch Size</key>
<value>1</value>
</entry>
<entry>
<key>Data Format</key>
<value>Text</value>
</entry>
<entry>
<key>Unique FlowFiles</key>
<value>false</value>
</entry>
<entry>
<key>generate-ff-custom-text</key>
</entry>
<entry>
<key>character-set</key>
<value>UTF-8</value>
</entry>
</properties>
<runDurationMillis>0</runDurationMillis>
<schedulingPeriod>15 sec</schedulingPeriod>
<schedulingStrategy>TIMER_DRIVEN</schedulingStrategy>
<yieldDuration>1 sec</yieldDuration>
</config>
<executionNodeRestricted>false</executionNodeRestricted>
<name>GenerateFlowFile</name>
<relationships>
<autoTerminate>false</autoTerminate>
<name>success</name>
</relationships>
<state>STOPPED</state>
<style/>
<type>org.apache.nifi.processors.standard.GenerateFlowFile</type>
</processors>
<processors>
<id>319e8fb0-f5b2-3834-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<position>
<x>748.4222695689696</x>
<y>482.8363572000644</y>
</position>
<bundle>
<artifact>nifi-update-attribute-nar</artifact>
<group>org.apache.nifi</group>
<version>1.9.0.3.4.1.1-4</version>
</bundle>
<config>
<bulletinLevel>WARN</bulletinLevel>
<comments></comments>
<concurrentlySchedulableTaskCount>1</concurrentlySchedulableTaskCount>
<descriptors>
<entry>
<key>Delete Attributes Expression</key>
<value>
<name>Delete Attributes Expression</name>
</value>
</entry>
<entry>
<key>Store State</key>
<value>
<name>Store State</name>
</value>
</entry>
<entry>
<key>Stateful Variables Initial Value</key>
<value>
<name>Stateful Variables Initial Value</name>
</value>
</entry>
<entry>
<key>canonical-value-lookup-cache-size</key>
<value>
<name>canonical-value-lookup-cache-size</name>
</value>
</entry>
<entry>
<key>url_A</key>
<value>
<name>url_A</name>
</value>
</entry>
<entry>
<key>url_B</key>
<value>
<name>url_B</name>
</value>
</entry>
<entry>
<key>url_empty</key>
<value>
<name>url_empty</name>
</value>
</entry>
<entry>
<key>url_empty_combined</key>
<value>
<name>url_empty_combined</name>
</value>
</entry>
<entry>
<key>url1</key>
<value>
<name>url1</name>
</value>
</entry>
<entry>
<key>url2</key>
<value>
<name>url2</name>
</value>
</entry>
<entry>
<key>url3</key>
<value>
<name>url3</name>
</value>
</entry>
</descriptors>
<executionNode>ALL</executionNode>
<lossTolerant>false</lossTolerant>
<penaltyDuration>30 sec</penaltyDuration>
<properties>
<entry>
<key>Delete Attributes Expression</key>
</entry>
<entry>
<key>Store State</key>
<value>Do not store state</value>
</entry>
<entry>
<key>Stateful Variables Initial Value</key>
</entry>
<entry>
<key>canonical-value-lookup-cache-size</key>
<value>100</value>
</entry>
<entry>
<key>url_A</key>
<value>${attributeA:isEmpty():ifElse(${attributeB}, ${attributeA})}</value>
</entry>
<entry>
<key>url_B</key>
<value>${attributeC:isEmpty():ifElse(${attributeB}, ${attributeA})}</value>
</entry>
<entry>
<key>url_empty</key>
<value>${attributeC:isEmpty():ifElse(${attributeB}, ${attributeA})}</value>
</entry>
<entry>
<key>url_empty_combined</key>
<value>${attributeC:isEmpty():ifElse(${combinedAttribute}, ${attributeA})}</value>
</entry>
<entry>
<key>url1</key>
<value>${attributeA:isEmpty():ifElse('true', 'false')}</value>
</entry>
<entry>
<key>url2</key>
<value>${attributeC:isEmpty():ifElse('true', 'false')}</value>
</entry>
<entry>
<key>url3</key>
<value>${attributeA:isEmpty():ifElse(${attributeB}, ${attributeA})}</value>
</entry>
</properties>
<runDurationMillis>0</runDurationMillis>
<schedulingPeriod>0 sec</schedulingPeriod>
<schedulingStrategy>TIMER_DRIVEN</schedulingStrategy>
<yieldDuration>1 sec</yieldDuration>
</config>
<executionNodeRestricted>false</executionNodeRestricted>
<name>UpdateAttribute</name>
<relationships>
<autoTerminate>false</autoTerminate>
<name>success</name>
</relationships>
<state>RUNNING</state>
<style/>
<type>org.apache.nifi.processors.attributes.UpdateAttribute</type>
</processors>
<processors>
<id>34e02ed6-49fc-3e3b-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<position>
<x>740.9215015431498</x>
<y>278.07107254011663</y>
</position>
<bundle>
<artifact>nifi-update-attribute-nar</artifact>
<group>org.apache.nifi</group>
<version>1.9.0.3.4.1.1-4</version>
</bundle>
<config>
<bulletinLevel>WARN</bulletinLevel>
<comments></comments>
<concurrentlySchedulableTaskCount>1</concurrentlySchedulableTaskCount>
<descriptors>
<entry>
<key>Delete Attributes Expression</key>
<value>
<name>Delete Attributes Expression</name>
</value>
</entry>
<entry>
<key>Store State</key>
<value>
<name>Store State</name>
</value>
</entry>
<entry>
<key>Stateful Variables Initial Value</key>
<value>
<name>Stateful Variables Initial Value</name>
</value>
</entry>
<entry>
<key>canonical-value-lookup-cache-size</key>
<value>
<name>canonical-value-lookup-cache-size</name>
</value>
</entry>
<entry>
<key>combinedAttribute</key>
<value>
<name>combinedAttribute</name>
</value>
</entry>
</descriptors>
<executionNode>ALL</executionNode>
<lossTolerant>false</lossTolerant>
<penaltyDuration>30 sec</penaltyDuration>
<properties>
<entry>
<key>Delete Attributes Expression</key>
</entry>
<entry>
<key>Store State</key>
<value>Do not store state</value>
</entry>
<entry>
<key>Stateful Variables Initial Value</key>
</entry>
<entry>
<key>canonical-value-lookup-cache-size</key>
<value>100</value>
</entry>
<entry>
<key>combinedAttribute</key>
<value>${attributeA}/tests/${attributeB}</value>
</entry>
</properties>
<runDurationMillis>0</runDurationMillis>
<schedulingPeriod>0 sec</schedulingPeriod>
<schedulingStrategy>TIMER_DRIVEN</schedulingStrategy>
<yieldDuration>1 sec</yieldDuration>
</config>
<executionNodeRestricted>false</executionNodeRestricted>
<name>UpdateAttribute</name>
<relationships>
<autoTerminate>false</autoTerminate>
<name>success</name>
</relationships>
<state>RUNNING</state>
<style/>
<type>org.apache.nifi.processors.attributes.UpdateAttribute</type>
</processors>
<processors>
<id>4ecf5970-ebeb-33b0-0000-000000000000</id>
<parentGroupId>c63a5a13-5090-3f84-0000-000000000000</parentGroupId>
<position>
<x>748.8755776744383</x>
<y>60.125618064322225</y>
</position>
<bundle>
<artifact>nifi-update-attribute-nar</artifact>
<group>org.apache.nifi</group>
<version>1.9.0.3.4.1.1-4</version>
</bundle>
<config>
<bulletinLevel>WARN</bulletinLevel>
<comments></comments>
<concurrentlySchedulableTaskCount>1</concurrentlySchedulableTaskCount>
<descriptors>
<entry>
<key>Delete Attributes Expression</key>
<value>
<name>Delete Attributes Expression</name>
</value>
</entry>
<entry>
<key>Store State</key>
<value>
<name>Store State</name>
</value>
</entry>
<entry>
<key>Stateful Variables Initial Value</key>
<value>
<name>Stateful Variables Initial Value</name>
</value>
</entry>
<entry>
<key>canonical-value-lookup-cache-size</key>
<value>
<name>canonical-value-lookup-cache-size</name>
</value>
</entry>
<entry>
<key>attributeA</key>
<value>
<name>attributeA</name>
</value>
</entry>
<entry>
<key>attributeB</key>
<value>
<name>attributeB</name>
</value>
</entry>
<entry>
<key>attributeD</key>
<value>
<name>attributeD</name>
</value>
</entry>
<entry>
<key>combinedAttribute</key>
<value>
<name>combinedAttribute</name>
</value>
</entry>
</descriptors>
<executionNode>ALL</executionNode>
<lossTolerant>false</lossTolerant>
<penaltyDuration>30 sec</penaltyDuration>
<properties>
<entry>
<key>Delete Attributes Expression</key>
</entry>
<entry>
<key>Store State</key>
<value>Do not store state</value>
</entry>
<entry>
<key>Stateful Variables Initial Value</key>
</entry>
<entry>
<key>canonical-value-lookup-cache-size</key>
<value>100</value>
</entry>
<entry>
<key>attributeA</key>
<value>testA</value>
</entry>
<entry>
<key>attributeB</key>
<value>testB</value>
</entry>
<entry>
<key>attributeD</key>
<value>testD</value>
</entry>
<entry>
<key>combinedAttribute</key>
<value>${attributeA}/tests/${attributeB}</value>
</entry>
</properties>
<runDurationMillis>0</runDurationMillis>
<schedulingPeriod>0 sec</schedulingPeriod>
<schedulingStrategy>TIMER_DRIVEN</schedulingStrategy>
<yieldDuration>1 sec</yieldDuration>
</config>
<executionNodeRestricted>false</executionNodeRestricted>
<name>UpdateAttribute</name>
<relationships>
<autoTerminate>false</autoTerminate>
<name>success</name>
</relationships>
<state>RUNNING</state>
<style/>
<type>org.apache.nifi.processors.attributes.UpdateAttribute</type>
</processors>
</contents>
<name>Working With Expression Language</name>
<variables/>
</processGroups>
</snippet>
<timestamp>06/01/2020 18:45:46 UTC</timestamp>
</template>