/
ExecutorFromExecutionTransformer.java
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/
ExecutorFromExecutionTransformer.java
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package io.kestra.runner.kafka.streams;
import io.kestra.core.models.executions.Execution;
import io.kestra.core.models.flows.State;
import io.kestra.core.runners.Executor;
import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.streams.kstream.ValueTransformerWithKey;
import org.apache.kafka.streams.processor.ProcessorContext;
import org.apache.kafka.streams.state.KeyValueStore;
@Slf4j
public class ExecutorFromExecutionTransformer implements ValueTransformerWithKey<String, Execution, Executor> {
private ProcessorContext context;
private final String storeName;
private KeyValueStore<String, Executor> store;
public ExecutorFromExecutionTransformer(String storeName) {
this.storeName = storeName;
}
@Override
public void init(final ProcessorContext context) {
this.context = context;
this.store = context.getStateStore(this.storeName);
}
@Override
public Executor transform(final String key, final Execution value) {
if (value == null) {
return null;
}
Executor executor = new Executor(
value,
this.context.offset()
);
// restart need to be saved on state store for future join
if (executor.getExecution().getState().getCurrent() == State.Type.RESTARTED) {
store.put(key, executor.serialize());
}
this.context.headers().remove("from");
this.context.headers().remove("offset");
return executor;
}
@Override
public void close() {
}
}