NIFI-13770 Remove Placeholder Prefix from Python Component Types

nifi-framework-bundle/nifi-framework-extensions/nifi-py4j-framework-bundle/nifi-python-framework-api/src/main/java/org/apache/nifi/python/processor/PythonProcessorBridge.java

@@ -36,7 +36,7 @@ public interface PythonProcessorBridge {
     void replaceController(PythonController controller);
 
     /**
-     * @return the name of the Processor implementation. This will not contain a 'python.' prefix.
+     * @return the name of the Processor implementation.
      */
     String getProcessorType();
 

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

@@ -263,7 +263,7 @@ public ProcessorNode buildProcessor() {
 
        final String componentType;
        if (PythonBundle.isPythonCoordinate(bundleCoordinate)) {
-           componentType = type.substring("python.".length());
+           componentType = type;
        } else if (creationSuccessful) {
            componentType = loggableComponent.getComponent().getClass().getSimpleName();
        } else {
@@ -896,9 +896,7 @@ private LoggableComponent<Processor> createLoggablePythonProcessor() {
                classloaderIsolationKey);
            Thread.currentThread().setContextClassLoader(detectedClassLoader);
 
-           // TODO: This is a hack because there's a bug in the UI that causes it to not load extensions that don't have a `.` in the type.
-           final String processorType = type.startsWith("python.") ? type.substring("python.".length()) : type;
-           final Processor processor = pythonBridge.createProcessor(identifier, processorType, bundleCoordinate.getVersion(), true, true);
+           final Processor processor = pythonBridge.createProcessor(identifier, type, bundleCoordinate.getVersion(), true, true);
 
            final ComponentLog componentLog = new SimpleProcessLogger(identifier, processor, new StandardLoggingContext(null));
            final TerminationAwareLogger terminationAwareLogger = new TerminationAwareLogger(componentLog);

nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/nar/ComponentNodeDefinitionPredicate.java

@@ -50,8 +50,7 @@ private <T extends ComponentNode> boolean isComponentFromType(final T componentN
 
         if (PythonBundle.isPythonCoordinate(componentCoordinate)) {
             final String componentType = componentNode.getComponentType();
-            final String pythonComponentType = "python." + componentType;
-            return pythonComponentType.equals(extensionDefinitionClassName) && componentCoordinate.equals(extensionDefinitionCoordinate);
+            return componentType.equals(extensionDefinitionClassName) && componentCoordinate.equals(extensionDefinitionCoordinate);
         } else if (componentNode.isExtensionMissing()) {
             return componentClassName.equals(extensionDefinitionClassName)
                     && componentCoordinate.getGroup().equals(extensionDefinitionCoordinate.getGroup())

nifi-framework-bundle/nifi-framework/nifi-framework-core/src/test/java/org/apache/nifi/nar/ComponentNodeDefinitionPredicateTest.java

@@ -40,7 +40,6 @@ public class ComponentNodeDefinitionPredicateTest {
     private static final BundleCoordinate STANDARD_BUNDLE_COORDINATE_V2 = new BundleCoordinate("org.apache.nifi", "my-processors-nar", "2.0.0");
 
     private static final String PYTHON_PROCESSOR_TYPE = "PythonProcessor";
-    private static final String FULL_PYTHON_PROCESSOR_TYPE = "python." + PYTHON_PROCESSOR_TYPE;
     private static final String OTHER_PYTHON_PROCESSOR_TYPE = "OtherPythonProcessor";
     private static final BundleCoordinate PYTHON_BUNDLE_COORDINATE = new BundleCoordinate(PythonBundle.GROUP_ID, PythonBundle.ARTIFACT_ID, "0.0.1");
 
@@ -66,7 +65,7 @@ public void setup() {
         when(pythonBundle.getBundleDetails()).thenReturn(pythonBundleDetails);
 
         pythonProcessorDefinition = mock(ExtensionDefinition.class);
-        when(pythonProcessorDefinition.getImplementationClassName()).thenReturn(FULL_PYTHON_PROCESSOR_TYPE);
+        when(pythonProcessorDefinition.getImplementationClassName()).thenReturn(PYTHON_PROCESSOR_TYPE);
         when(pythonProcessorDefinition.getBundle()).thenReturn(pythonBundle);
     }
 

nifi-framework-bundle/nifi-framework/nifi-framework-nar-utils/src/main/java/org/apache/nifi/nar/StandardExtensionDiscoveringManager.java

@@ -87,7 +87,6 @@
 public class StandardExtensionDiscoveringManager implements ExtensionDiscoveringManager {
 
     private static final Logger logger = LoggerFactory.getLogger(StandardExtensionDiscoveringManager.class);
-    private static final String PYTHON_TYPE_PREFIX = "python.";
 
     // Maps a service definition (interface) to those classes that implement the interface
     private final Map<Class<?>, Set<ExtensionDefinition>> definitionMap = new HashMap<>();
@@ -234,8 +233,7 @@ private void loadPythonExtensions(final Bundle pythonBundle, final long startTim
             final BundleDetails bundleDetails = createBundleDetailsWithOverriddenVersion(pythonBundle.getBundleDetails(), details.getProcessorVersion());
             final Bundle bundle = new Bundle(bundleDetails, pythonBundle.getClassLoader());
 
-            // TODO: This is a workaround because the UI has a bug that causes it not to work properly if the type doesn't have a '.' in it
-            final String className = PYTHON_TYPE_PREFIX + details.getProcessorType();
+            final String className = details.getProcessorType();
             final ExtensionDefinition extensionDefinition = new ExtensionDefinition.Builder()
                     .implementationClassName(className)
                     .runtime(ExtensionRuntime.PYTHON)
@@ -274,8 +272,7 @@ private void loadPythonExtensions(final Bundle pythonBundle, final long startTim
 
     @Override
     public synchronized PythonProcessorDetails getPythonProcessorDetails(final String processorType, final String version) {
-        final String canonicalProcessorType = stripPythonTypePrefix(processorType);
-        final List<PythonProcessorDetails> detailsList = this.pythonProcessorDetails.get(canonicalProcessorType);
+        final List<PythonProcessorDetails> detailsList = this.pythonProcessorDetails.get(processorType);
         if (detailsList == null) {
             return null;
         }
@@ -785,19 +782,18 @@ private void removeExtensionDefinition(final ExtensionDefinition extensionDefini
         final String tempComponentKey = getClassBundleKey(removeExtensionClassName, extensionDefinitionCoordinate);
         final ConfigurableComponent removedTempComponent = tempComponentLookup.remove(tempComponentKey);
 
-        if (removeExtensionClassName.startsWith(PYTHON_TYPE_PREFIX)) {
-            final String strippedClassName = stripPythonTypePrefix(removeExtensionClassName);
-            logger.debug("Removing Python processor type {} - {}", strippedClassName, extensionDefinition.getVersion());
+        if (PythonBundle.isPythonCoordinate(extensionDefinitionCoordinate)) {
+            logger.debug("Removing Python processor type {} - {}", removeExtensionClassName, extensionDefinition.getVersion());
 
-            final List<PythonProcessorDetails> processorDetailsList = Optional.ofNullable(pythonProcessorDetails.get(strippedClassName)).orElse(Collections.emptyList());
-            processorDetailsList.removeIf(processorDetails -> processorDetails.getProcessorType().equals(strippedClassName)
+            final List<PythonProcessorDetails> processorDetailsList = Optional.ofNullable(pythonProcessorDetails.get(removeExtensionClassName)).orElse(Collections.emptyList());
+            processorDetailsList.removeIf(processorDetails -> processorDetails.getProcessorType().equals(removeExtensionClassName)
                     && processorDetails.getProcessorVersion().equals(extensionDefinition.getVersion()));
 
             if (removedTempComponent != null) {
-                final String pythonTempComponentId = getPythonTempComponentId(strippedClassName);
-                pythonBridge.onProcessorRemoved(pythonTempComponentId, strippedClassName, extensionDefinition.getVersion());
+                final String pythonTempComponentId = getPythonTempComponentId(removeExtensionClassName);
+                pythonBridge.onProcessorRemoved(pythonTempComponentId, removeExtensionClassName, extensionDefinition.getVersion());
             }
-            pythonBridge.removeProcessorType(strippedClassName, extensionDefinition.getVersion());
+            pythonBridge.removeProcessorType(removeExtensionClassName, extensionDefinition.getVersion());
         }
     }
 
@@ -861,11 +857,8 @@ public synchronized ConfigurableComponent getTempComponent(final String classTyp
         try (final NarCloseable narCloseable = NarCloseable.withComponentNarLoader(bundleClassLoader)) {
             final ConfigurableComponent tempComponent;
             if (PythonBundle.isPythonCoordinate(bundle.getBundleDetails().getCoordinate())) {
-                // TODO: This is a workaround due to bug in UI. Fix bug in UI.
-                final String type = stripPythonTypePrefix(classType);
-
-                final String procId = getPythonTempComponentId(type);
-                tempComponent = pythonBridge.createProcessor(procId, type, bundleCoordinate.getVersion(), false, false);
+                final String procId = getPythonTempComponentId(classType);
+                tempComponent = pythonBridge.createProcessor(procId, classType, bundleCoordinate.getVersion(), false, false);
             } else {
                 final Class<?> componentClass = Class.forName(classType, true, bundleClassLoader);
                 tempComponent = (ConfigurableComponent) componentClass.getDeclaredConstructor().newInstance();
@@ -890,17 +883,6 @@ private static String getPythonTempComponentId(final String type) {
         return "temp-component-" + type;
     }
 
-    private static String stripPythonTypePrefix(final String value) {
-        if (value == null) {
-            return null;
-        }
-        if (value.startsWith(PYTHON_TYPE_PREFIX)) {
-            return value.substring(PYTHON_TYPE_PREFIX.length());
-        }
-
-        return value;
-    }
-
     private static String getClassBundleKey(final String classType, final BundleCoordinate bundleCoordinate) {
         return classType + "_" + bundleCoordinate.getCoordinate();
     }

nifi-frontend/src/main/frontend/apps/nifi/src/app/pages/flow-designer/ui/canvas/items/connection/prioritizers/prioritizers.component.ts

@@ -125,7 +125,7 @@ export class Prioritizers implements ControlValueAccessor {
     }
 
     getPrioritizerLabel(entity: DocumentedType): string {
-        return this.nifiCommon.substringAfterLast(entity.type, '.');
+        return this.nifiCommon.getComponentTypeLabel(entity.type);
     }
 
     hasDescription(entity: DocumentedType): boolean {

nifi-frontend/src/main/frontend/apps/nifi/src/app/pages/settings/ui/registry-clients/create-registry-client/create-registry-client.component.ts

@@ -80,7 +80,7 @@ export class CreateRegistryClient extends CloseOnEscapeDialog {
     }
 
     formatType(option: DocumentedType): string {
-        return this.nifiCommon.substringAfterLast(option.type, '.');
+        return this.nifiCommon.getComponentTypeLabel(option.type);
     }
 
     createRegistryClientClicked() {

nifi-frontend/src/main/frontend/apps/nifi/src/app/ui/common/change-component-version-dialog/change-component-version-dialog.ts

@@ -77,7 +77,7 @@ export class ChangeComponentVersionDialog extends CloseOnEscapeDialog {
     }
 
     getName(selected: DocumentedType | null): string {
-        return this.nifiCommon.substringAfterLast(selected?.type || '', '.');
+        return this.nifiCommon.getComponentTypeLabel(selected?.type || '');
     }
 
     protected readonly TextTip = TextTip;

nifi-frontend/src/main/frontend/apps/nifi/src/app/ui/common/extension-creation/extension-creation.component.ts

@@ -82,7 +82,7 @@ export class ExtensionCreation extends CloseOnEscapeDialog {
 
     formatType(documentedType: DocumentedType): string {
         if (documentedType) {
-            return this.nifiCommon.substringAfterLast(documentedType.type, '.');
+            return this.nifiCommon.getComponentTypeLabel(documentedType.type);
         }
         return '';
     }

nifi-frontend/src/main/frontend/libs/shared/src/services/nifi-common.service.ts

@@ -40,6 +40,8 @@ export class NiFiCommon {
     public static readonly BYTES_IN_GIGABYTE: number = 1073741824;
     public static readonly BYTES_IN_TERABYTE: number = 1099511627776;
 
+    public static readonly PACKAGE_SEPARATOR: string = '.';
+
     private policyTypeListing: SelectOption[] = [
         {
             text: 'view the user interface',
@@ -173,6 +175,22 @@ export class NiFiCommon {
         return result;
     }
 
+    /**
+     * Get the label for a Component Type using the simple name from a qualified class
+     *
+     * @argument {string} componentType Qualified class name or simple name
+     */
+    public getComponentTypeLabel(componentType: string): string {
+        let label = componentType;
+
+        const separatorIndex = componentType.indexOf(NiFiCommon.PACKAGE_SEPARATOR);
+        if (separatorIndex >= 0) {
+            label = this.substringAfterLast(componentType, NiFiCommon.PACKAGE_SEPARATOR);
+        }
+
+        return label;
+    }
+
     /**
      * Determines whether the specified string is blank (or null or undefined).
      *
@@ -268,7 +286,7 @@ export class NiFiCommon {
      * @param dataContext component datum
      */
     public formatClassName(dataContext: any): string {
-        return this.substringAfterLast(dataContext.type, '.');
+        return this.getComponentTypeLabel(dataContext.type);
     }
 
     /**

nifi-system-tests/nifi-system-test-suite/src/test/java/org/apache/nifi/tests/system/NiFiClientUtil.java

@@ -177,7 +177,7 @@ public void stopProcessor(final ProcessorEntity currentEntity) throws NiFiClient
     }
 
     public ProcessorEntity createPythonProcessor(final String typeName) throws NiFiClientException, IOException {
-        return createProcessor( "python." + typeName, NiFiSystemIT.NIFI_GROUP_ID, NiFiSystemIT.TEST_PYTHON_EXTENSIONS_ARTIFACT_ID, "0.0.1-SNAPSHOT");
+        return createProcessor(typeName, NiFiSystemIT.NIFI_GROUP_ID, NiFiSystemIT.TEST_PYTHON_EXTENSIONS_ARTIFACT_ID, "0.0.1-SNAPSHOT");
     }
 
     public ProcessorEntity createProcessor(final String simpleTypeName) throws NiFiClientException, IOException {

nifi-system-tests/nifi-system-test-suite/src/test/java/org/apache/nifi/tests/system/nar/NarUploadPythonIT.java

@@ -47,7 +47,7 @@ public class NarUploadPythonIT extends NiFiSystemIT {
     private static final Logger logger = LoggerFactory.getLogger(NarUploadPythonIT.class);
 
     private static final String PYTHON_TEXT_EXTENSIONS_NAR_ID = "nifi-python-test-extensions-nar";
-    private static final String PYTHON_WRITE_BECH_32_CHARSET = "python.WriteBech32Charset";
+    private static final String PYTHON_WRITE_BECH_32_CHARSET = "WriteBech32Charset";
     private static final String EXPECTED_FLOW_FILE_CONTENT = "qpzry9x8gf2tvdw0s3jn54khce6mua7l";
 
     @Override