| /** |
| * 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.streams.processor.internals; |
| |
| import org.apache.kafka.common.serialization.Serde; |
| import org.apache.kafka.streams.StreamsConfig; |
| import org.apache.kafka.streams.StreamsMetrics; |
| import org.apache.kafka.streams.processor.ProcessorContext; |
| import org.apache.kafka.streams.processor.StateRestoreCallback; |
| import org.apache.kafka.streams.processor.StateStore; |
| import org.apache.kafka.streams.processor.TaskId; |
| |
| import java.io.File; |
| |
| public class StandbyContextImpl implements ProcessorContext, RecordCollector.Supplier { |
| |
| private final TaskId id; |
| private final String applicationId; |
| private final StreamsMetrics metrics; |
| private final ProcessorStateManager stateMgr; |
| |
| private final Serde<?> keySerde; |
| private final Serde<?> valSerde; |
| |
| private boolean initialized; |
| |
| public StandbyContextImpl(TaskId id, |
| String applicationId, |
| StreamsConfig config, |
| ProcessorStateManager stateMgr, |
| StreamsMetrics metrics) { |
| this.id = id; |
| this.applicationId = applicationId; |
| this.metrics = metrics; |
| this.stateMgr = stateMgr; |
| |
| this.keySerde = config.keySerde(); |
| this.valSerde = config.valueSerde(); |
| |
| this.initialized = false; |
| } |
| |
| public void initialized() { |
| this.initialized = true; |
| } |
| |
| public ProcessorStateManager getStateMgr() { |
| return stateMgr; |
| } |
| |
| @Override |
| public TaskId taskId() { |
| return id; |
| } |
| |
| @Override |
| public String applicationId() { |
| return applicationId; |
| } |
| |
| @Override |
| public RecordCollector recordCollector() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public Serde<?> keySerde() { |
| return this.keySerde; |
| } |
| |
| @Override |
| public Serde<?> valueSerde() { |
| return this.valSerde; |
| } |
| |
| @Override |
| public File stateDir() { |
| return stateMgr.baseDir(); |
| } |
| |
| @Override |
| public StreamsMetrics metrics() { |
| return metrics; |
| } |
| |
| @Override |
| public void register(StateStore store, boolean loggingEnabled, StateRestoreCallback stateRestoreCallback) { |
| if (initialized) |
| throw new IllegalStateException("Can only create state stores during initialization."); |
| |
| stateMgr.register(store, loggingEnabled, stateRestoreCallback); |
| } |
| |
| @Override |
| public StateStore getStateStore(String name) { |
| throw new UnsupportedOperationException("this should not happen: getStateStore() not supported in standby tasks."); |
| } |
| |
| @Override |
| public String topic() { |
| throw new UnsupportedOperationException("this should not happen: topic() not supported in standby tasks."); |
| } |
| |
| @Override |
| public int partition() { |
| throw new UnsupportedOperationException("this should not happen: partition() not supported in standby tasks."); |
| } |
| |
| @Override |
| public long offset() { |
| throw new UnsupportedOperationException("this should not happen: offset() not supported in standby tasks."); |
| } |
| |
| @Override |
| public long timestamp() { |
| throw new UnsupportedOperationException("this should not happen: timestamp() not supported in standby tasks."); |
| } |
| |
| @Override |
| public <K, V> void forward(K key, V value) { |
| throw new UnsupportedOperationException("this should not happen: forward() not supported in standby tasks."); |
| } |
| |
| @Override |
| public <K, V> void forward(K key, V value, int childIndex) { |
| throw new UnsupportedOperationException("this should not happen: forward() not supported in standby tasks."); |
| } |
| |
| @Override |
| public <K, V> void forward(K key, V value, String childName) { |
| throw new UnsupportedOperationException("this should not happen: forward() not supported in standby tasks."); |
| } |
| |
| @Override |
| public void commit() { |
| throw new UnsupportedOperationException("this should not happen: commit() not supported in standby tasks."); |
| } |
| |
| @Override |
| public void schedule(long interval) { |
| throw new UnsupportedOperationException("this should not happen: schedule() not supported in standby tasks."); |
| } |
| } |