content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License. You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.kafka.test;
  
  import org.apache.kafka.common.header.Headers;
  import org.apache.kafka.common.header.internals.RecordHeaders;
  import org.apache.kafka.common.utils.Bytes;
  import org.apache.kafka.streams.processor.CommitCallback;
  import org.apache.kafka.streams.processor.StateRestoreCallback;
  import org.apache.kafka.streams.processor.StateStore;
  import org.apache.kafka.streams.processor.TaskId;
  import org.apache.kafka.streams.processor.To;
  import org.apache.kafka.streams.processor.api.FixedKeyRecord;
  import org.apache.kafka.streams.processor.api.MockProcessorContext;
  import org.apache.kafka.streams.processor.api.Record;
  import org.apache.kafka.streams.processor.internals.InternalProcessorContext;
  import org.apache.kafka.streams.processor.internals.ProcessorMetadata;
  import org.apache.kafka.streams.processor.internals.ProcessorNode;
  import org.apache.kafka.streams.processor.internals.ProcessorRecordContext;
  import org.apache.kafka.streams.processor.internals.RecordCollector;
  import org.apache.kafka.streams.processor.internals.StreamTask;
  import org.apache.kafka.streams.processor.internals.Task.TaskType;
  import org.apache.kafka.streams.processor.internals.metrics.StreamsMetricsImpl;
  import org.apache.kafka.streams.query.Position;
  import org.apache.kafka.streams.state.StoreBuilder;
  import org.apache.kafka.streams.state.internals.ThreadCache;
  import org.apache.kafka.streams.state.internals.ThreadCache.DirtyEntryFlushListener;
  
  import java.io.File;
  import java.util.LinkedHashMap;
  import java.util.Map;
  import java.util.Objects;
  import java.util.Properties;
  
  public class MockInternalProcessorContext<KOut, VOut> extends MockProcessorContext<KOut, VOut> implements InternalProcessorContext<KOut, VOut> {
  
      private ProcessorNode<?, ?, ?, ?> currentNode;
      private RecordCollector recordCollector;
      private final Map<String, StateRestoreCallback> restoreCallbacks = new LinkedHashMap<>();
      private long currentSystemTimeMs;
      private final TaskType taskType = TaskType.ACTIVE;
  
      private long timestamp = 0;
      private Headers headers = new RecordHeaders();
      private ProcessorMetadata processorMetadata;
  
      public MockInternalProcessorContext() {
          processorMetadata = new ProcessorMetadata();
      }
  
      public MockInternalProcessorContext(final Properties config, final TaskId taskId, final File stateDir) {
          super(config, taskId, stateDir);
          processorMetadata = new ProcessorMetadata();
      }
  
      @Override
      public void setSystemTimeMs(long timeMs) {
          currentSystemTimeMs = timeMs;
      }
  
      @Override
      public long currentSystemTimeMs() {
          return currentSystemTimeMs;
      }
  
      @Override
      public long currentStreamTimeMs() {
          return 0;
      }
  
      @Override
      public StreamsMetricsImpl metrics() {
          return (StreamsMetricsImpl) super.metrics();
      }
  
      @Override
      public ProcessorRecordContext recordContext() {
          return new ProcessorRecordContext(timestamp(), offset(), partition(), topic(), headers());
      }
  
      @Override
      public void setRecordContext(final ProcessorRecordContext recordContext) {
          setRecordMetadata(
              recordContext.topic(),
              recordContext.partition(),
              recordContext.offset()
          );
          this.headers = recordContext.headers();
          this.timestamp = recordContext.timestamp();
      }
  
      public void setTimestamp(final long timestamp) {
          this.timestamp = timestamp;
      }
  
      public void setHeaders(final Headers headers) {
          this.headers = headers;
      }
  
      @Override
      public void setCurrentNode(final ProcessorNode<?, ?, ?, ?> currentNode) {
          this.currentNode = currentNode;
      }
  
      @Override
      public ProcessorNode<?, ?, ?, ?> currentNode() {
          return currentNode;
      }
  
      @Override
      public ThreadCache cache() {
          return null;
      }
  
      @Override
      public void initialize() {}
  
      @Override
      public void uninitialize() {}
  
      @Override
      public RecordCollector recordCollector() {
          return recordCollector;
      }
  
      public void setRecordCollector(final RecordCollector recordCollector) {
          this.recordCollector = recordCollector;
      }
  
      @Override
      public void register(final StateStore store,
                           final StateRestoreCallback stateRestoreCallback) {
          restoreCallbacks.put(store.name(), stateRestoreCallback);
          addStateStore(store);
      }
  
      @Override
      public void register(final StateStore store,
                           final StateRestoreCallback stateRestoreCallback,
                           final CommitCallback checkpoint) {
          restoreCallbacks.put(store.name(), stateRestoreCallback);
          addStateStore(store);
      }
  
      public StateRestoreCallback stateRestoreCallback(final String storeName) {
          return restoreCallbacks.get(storeName);
      }
  
      @Override
      public <K, V> void forward(K key, V value) {
          throw new UnsupportedOperationException("Migrate to new implementation");
      }
  
      @Override
      public <K, V> void forward(K key, V value, To to) {
          throw new UnsupportedOperationException("Migrate to new implementation");
      }
  
      @Override
      public String topic() {
          if (recordMetadata().isPresent()) return recordMetadata().get().topic();
          else return null;
      }
  
      @Override
      public int partition() {
          if (recordMetadata().isPresent()) return recordMetadata().get().partition();
          else return 0;
      }
  
      @Override
      public long offset() {
          if (recordMetadata().isPresent()) return recordMetadata().get().offset();
          else return 0;
      }
  
      @Override
      public Headers headers() {
          return headers;
      }
  
      @Override
      public long timestamp() {
          return timestamp;
      }
  
      @Override
      public TaskType taskType() {
          return taskType;
      }
  
      @Override
      public void logChange(final String storeName,
                            final Bytes key,
                            final byte[] value,
                            final long timestamp,
                            final Position position) {
      }
  
      @Override
      public void transitionToActive(final StreamTask streamTask, final RecordCollector recordCollector, final ThreadCache newCache) {
      }
  
      @Override
      public void transitionToStandby(final ThreadCache newCache) {
      }
  
      @Override
      public void registerCacheFlushListener(final String namespace, final DirtyEntryFlushListener listener) {
      }
  
      @Override
      public <T extends StateStore> T getStateStore(StoreBuilder<T> builder) {
          return getStateStore(builder.name());
      }
  
      @Override
      public String changelogFor(final String storeName) {
          return "mock-changelog";
      }
  
      @Override
      public void addProcessorMetadataKeyValue(final String key, final long value) {
          processorMetadata.put(key, value);
      }
  
      @Override
      public Long processorMetadataForKey(final String key) {
          return processorMetadata.get(key);
      }
  
      @Override
      public void setProcessorMetadata(final ProcessorMetadata metadata) {
          Objects.requireNonNull(metadata);
          processorMetadata = metadata;
      }
  
      @Override
      public ProcessorMetadata processorMetadata() {
          return processorMetadata;
      }
  
      @Override
      public <K extends KOut, V extends VOut> void forward(final FixedKeyRecord<K, V> record) {
          forward(new Record<>(record.key(), record.value(), record.timestamp(), record.headers()));
      }
  
      @Override
      public <K extends KOut, V extends VOut> void forward(final FixedKeyRecord<K, V> record,
                                                           final String childName) {
          forward(
              new Record<>(record.key(), record.value(), record.timestamp(), record.headers()),
              childName
          );
      }
  }