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https://issues.apache.org/jira/browse/NIFI-16073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Daniel Stieglitz updated NIFI-16073:
------------------------------------
    Description: 
This ticket picks up where tickets NIFI-16041 and NIFI-16052 left off in that 
it aims to implement the pattern variable in other places of the code and make 
preexisting ones final. 

In many cases, the use of the pattern variable cleans up a lot of duplicate 
casts for example in 
nifi-extension-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/util/OutputStreamWritable
 .java the following snippet is before the pattern variable:
{code:java}
if (in instanceof DataInputBuffer) {
            byte[] bytes = ((DataInputBuffer) in).getData();
            int pos = ((DataInputBuffer) in).getPosition();
            int length = ((DataInputBuffer) in).getLength();
            int bytesRemaining = length - pos;{code}
and after the use of the pattern variable
{code:java}
if (in instanceof final DataInputBuffer dataInputBuffer) {
            byte[] bytes = dataInputBuffer.getData();
            int pos = dataInputBuffer.getPosition();
            int length = dataInputBuffer.getLength();{code}
 

Another example is

nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/controller/scheduling/RepositoryContextFactory.java

Before
{code:java}
public RepositoryContext newProcessContext(final Connectable connectable, final 
AtomicLong connectionIndex) {
        final Class<?> componentClass = (connectable instanceof ProcessorNode 
&& ((ProcessorNode) connectable).getProcessor() != null)
                ? ((ProcessorNode) connectable).getProcessor().getClass()
                : null;{code}
After
{code:java}
public RepositoryContext newProcessContext(final Connectable connectable, final 
AtomicLong connectionIndex) {
        final Class<?> componentClass = (connectable instanceof final 
ProcessorNode processorNode && processorNode.getProcessor() != null)
                ? processorNode.getProcessor().getClass()
                : null;{code}
 

Another example

nifi-extension-bundles/nifi-gcp-bundle/nifi-gcp-processors/src/main/java/org/apache/nifi/processors/gcp/bigquery/PutBigQuery.java

Before

 

  was:
This ticket picks up where tickets NIFI-16041 and NIFI-16052 left off in that 
it aims to implement the pattern variable in other places of the code and make 
preexisting ones final. 

In many cases, the use of the pattern variable cleans up a lot of duplicate 
casts for example in 
nifi-extension-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/util/OutputStreamWritable
 .java the following snippet is before the pattern variable:
{code:java}
if (in instanceof DataInputBuffer) {
            byte[] bytes = ((DataInputBuffer) in).getData();
            int pos = ((DataInputBuffer) in).getPosition();
            int length = ((DataInputBuffer) in).getLength();
            int bytesRemaining = length - pos;{code}
and after the use of the pattern variable
{code:java}
if (in instanceof final DataInputBuffer dataInputBuffer) {
            byte[] bytes = dataInputBuffer.getData();
            int pos = dataInputBuffer.getPosition();
            int length = dataInputBuffer.getLength();{code}
 

Another example is

nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/controller/scheduling/RepositoryContextFactory.java

Before
{code:java}
public RepositoryContext newProcessContext(final Connectable connectable, final 
AtomicLong connectionIndex) {
        final Class<?> componentClass = (connectable instanceof ProcessorNode 
&& ((ProcessorNode) connectable).getProcessor() != null)
                ? ((ProcessorNode) connectable).getProcessor().getClass()
                : null;{code}
After
{code:java}
public RepositoryContext newProcessContext(final Connectable connectable, final 
AtomicLong connectionIndex) {
        final Class<?> componentClass = (connectable instanceof final 
ProcessorNode processorNode && processorNode.getProcessor() != null)
                ? processorNode.getProcessor().getClass()
                : null;{code}


> Apply Pattern variable in other places in the code base and make preexisting 
> pattern variables final
> ----------------------------------------------------------------------------------------------------
>
>                 Key: NIFI-16073
>                 URL: https://issues.apache.org/jira/browse/NIFI-16073
>             Project: Apache NiFi
>          Issue Type: Improvement
>            Reporter: Daniel Stieglitz
>            Assignee: Daniel Stieglitz
>            Priority: Minor
>
> This ticket picks up where tickets NIFI-16041 and NIFI-16052 left off in that 
> it aims to implement the pattern variable in other places of the code and 
> make preexisting ones final. 
> In many cases, the use of the pattern variable cleans up a lot of duplicate 
> casts for example in 
> nifi-extension-bundles/nifi-hadoop-bundle/nifi-hdfs-processors/src/main/java/org/apache/nifi/processors/hadoop/util/OutputStreamWritable
>  .java the following snippet is before the pattern variable:
> {code:java}
> if (in instanceof DataInputBuffer) {
>             byte[] bytes = ((DataInputBuffer) in).getData();
>             int pos = ((DataInputBuffer) in).getPosition();
>             int length = ((DataInputBuffer) in).getLength();
>             int bytesRemaining = length - pos;{code}
> and after the use of the pattern variable
> {code:java}
> if (in instanceof final DataInputBuffer dataInputBuffer) {
>             byte[] bytes = dataInputBuffer.getData();
>             int pos = dataInputBuffer.getPosition();
>             int length = dataInputBuffer.getLength();{code}
>  
> Another example is
> nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/controller/scheduling/RepositoryContextFactory.java
> Before
> {code:java}
> public RepositoryContext newProcessContext(final Connectable connectable, 
> final AtomicLong connectionIndex) {
>         final Class<?> componentClass = (connectable instanceof ProcessorNode 
> && ((ProcessorNode) connectable).getProcessor() != null)
>                 ? ((ProcessorNode) connectable).getProcessor().getClass()
>                 : null;{code}
> After
> {code:java}
> public RepositoryContext newProcessContext(final Connectable connectable, 
> final AtomicLong connectionIndex) {
>         final Class<?> componentClass = (connectable instanceof final 
> ProcessorNode processorNode && processorNode.getProcessor() != null)
>                 ? processorNode.getProcessor().getClass()
>                 : null;{code}
>  
> Another example
> nifi-extension-bundles/nifi-gcp-bundle/nifi-gcp-processors/src/main/java/org/apache/nifi/processors/gcp/bigquery/PutBigQuery.java
> Before
>  



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