Nope. I'm still getting NullPointerException even with
getContext().newBodyInvoker() .withContexts(environmentExpander,
taskListenerDecorator)
.withCallback(BodyExecutionCallback.wrap(getContext())) .start();
So something else must be the issue but not sure what.
On Wednesday, April 17, 2019 at 4:54:53 PM UTC+3, Daniel Anechitoaie wrote:
>
> I suspect my problem is with .withCallback(new
> WithCheckRunStepExecutionCallback(this)) ?
> But then if I use ".withCallback(BodyExecutionCallback.wrap(getContext()))"
> instead, how will I be able to read a variable from within StepExecution
> class?
>
>
>
> On Wednesday, April 17, 2019 at 4:18:28 PM UTC+3, Daniel Anechitoaie wrote:
>>
>> I have a pipeline step plugin that wraps other steps and captures the
>> output and for some reason this causes a Null Pointer Exception when I try
>> to do logger.println() from the step plugin that is wrapped.
>>
>> *So with this pipeline:*
>> ---
>> node {
>> stage('Test') {
>> withCodeReviewAssistantGitHubCheckRun(args) {
>> codeReviewAssistantXMLLint()
>> }
>> }
>> }
>> ---
>>
>>
>> *withCodeReviewAssistantGitHubCheckRun having a:*
>> ---
>> private static class
>> WithCheckRunStepExecutionTaskListenerDecorator extends
>> TaskListenerDecorator {
>> private static final long serialVersionUID = 1;
>> private WithCheckRunStepExecution withCheckRunStepExecution;
>>
>>
>> WithCheckRunStepExecutionTaskListenerDecorator(WithCheckRunStepExecution
>> withCheckRunStepExecution) {
>> this.withCheckRunStepExecution =
>> withCheckRunStepExecution;
>> }
>>
>> @Nonnull
>> @Override
>> public OutputStream decorate(@Nonnull final OutputStream
>> outputStream) {
>> return new LineTransformationOutputStream() {
>> @Override
>> protected void eol(byte[] b, int len) throws
>> IOException {
>> synchronized (outputStream) {
>>
>> withCheckRunStepExecution.addBodyOutputLine(b, len);
>> outputStream.write(b, 0, len);
>> }
>> }
>> };
>> }
>> }
>> ---
>>
>>
>> *that's used like:*
>> ---
>> EnvironmentExpander environmentExpander =
>> EnvironmentExpander.merge(
>> getContext().get(EnvironmentExpander.class),
>> new WithCheckRunStepExecutionEnvironmentExpander(new
>> EnvVars())
>> );
>>
>> TaskListenerDecorator taskListenerDecorator =
>> TaskListenerDecorator.merge(
>> getContext().get(TaskListenerDecorator.class),
>> new
>> WithCheckRunStepExecutionTaskListenerDecorator(this)
>> );
>>
>> getContext().newBodyInvoker()
>> .withContexts(environmentExpander,
>> taskListenerDecorator)
>> .withCallback(new
>> WithCheckRunStepExecutionCallback(this))
>> .start();
>> ---
>>
>>
>>
>> *And codeReviewAssistantXMLLint is basically:*
>> ---
>> public class XMLLinterStep extends Step {
>> @Override
>> public StepExecution start(StepContext context) {
>> return new XMLLinterStepExecution(this, context);
>> }
>>
>> private static class XMLLinterStepExecution extends
>> SynchronousNonBlockingStepExecution<Void> {
>> private static final long serialVersionUID = 1L;
>> private transient final XMLLinterStep step;
>>
>> XMLLinterStepExecution(XMLLinterStep step, StepContext context) {
>> super(context);
>> this.step = step;
>> }
>>
>> @Override
>> protected Void run() throws IOException, InterruptedException {
>> TaskListener taskListener =
>> getContext().get(TaskListener.class);
>> Objects.requireNonNull(taskListener, "Failed to get
>> TaskListener.class");
>>
>> FilePath filePath = getContext().get(FilePath.class);
>> Objects.requireNonNull(filePath, "Failed to get
>> FilePath.class");
>>
>> if (!filePath.exists()) {
>> filePath.mkdirs();
>> }
>>
>> filePath.act(new XMLLinterStepCallable(taskListener));
>> return null;
>> }
>> }
>>
>> private static class XMLLinterStepCallable extends
>> MasterToSlaveFileCallable<Void> {
>> private static final long serialVersionUID = 1L;
>> private final TaskListener taskListener;
>>
>> XMLLinterStepCallable(TaskListener taskListener) {
>> this.taskListener = taskListener;
>> }
>>
>> @Override
>> public Void invoke(File dir, VirtualChannel channel) throws
>> IOException {
>> PrintStream logger = taskListener.getLogger();
>> logger.println("Test"); *//THIS LINE THROWS Null Pointer
>> Exception*
>> return null;
>> }
>> }
>> }
>> ---
>>
>>
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