Examples with StreamTaskStateInitializer org.apache.flink.streaming.api.operators.StreamTaskStateInitializer used on opensource projects

Example 1 with StreamTaskStateInitializer

use of org.apache.flink.streaming.api.operators.StreamTaskStateInitializer in project flink by apache.

the class StreamOperatorContextBuilder method build.

StreamOperatorStateContext build(Logger logger) throws IOException {
    final Environment environment = new SavepointEnvironment.Builder(ctx, maxParallelism).setConfiguration(configuration).setSubtaskIndex(split.getSplitNumber()).setPrioritizedOperatorSubtaskState(split.getPrioritizedOperatorSubtaskState()).build();
    StateBackend stateBackend;
    try {
        stateBackend = StateBackendLoader.fromApplicationOrConfigOrDefault(applicationStateBackend, TernaryBoolean.FALSE, configuration, ctx.getUserCodeClassLoader(), logger);
    } catch (DynamicCodeLoadingException e) {
        throw new IOException("Failed to load state backend", e);
    }
    StreamTaskStateInitializer initializer = new StreamTaskStateInitializerImpl(environment, stateBackend);
    try {
        return initializer.streamOperatorStateContext(operatorState.getOperatorID(), operatorState.getOperatorID().toString(), new NeverFireProcessingTimeService(), keyContext, keySerializer, registry, ctx.getMetricGroup(), 1.0, false);
    } catch (Exception e) {
        throw new IOException("Failed to restore state backend", e);
    }
}