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Job.java
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Job.java
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/*
* Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance
* with the License. A copy of the License is located at
*
* http://aws.amazon.com/apache2.0/
*
* or in the "license" file accompanying this file. This file 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 ai.djl.serving.wlm;
import ai.djl.modality.Input;
import ai.djl.modality.Output;
import ai.djl.translate.TranslateException;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;
/** A class represents an inference job. */
public class Job<I, O> {
private WorkerPoolConfig<I, O> workerPoolConfig;
private I input;
private O output;
private long begin;
private JobFunction<I, O> runner;
/**
* Constructs a new {@code Job} instance.
*
* @param wpc the model to run the job
* @param input the input data
*/
public Job(WorkerPoolConfig<I, O> wpc, I input) {
this.workerPoolConfig = wpc;
this.input = input;
begin = System.nanoTime();
}
/**
* Constructs a new {@code Job} instance.
*
* @param wpc the model to run the job
* @param input the input data
* @param runner the function to run on worker
*/
public Job(WorkerPoolConfig<I, O> wpc, I input, JobFunction<I, O> runner) {
this(wpc, input);
this.runner = runner;
}
/**
* Runs a {@link JobFunction} on a batch of jobs and sets the result in their output.
*
* @param jobs the jobs to run and update
* @param f the function to run
* @param <I> the input type
* @param <O> the output type
* @throws TranslateException if the jobs fail to run
*/
public static <I, O> void runAll(List<Job<I, O>> jobs, JobFunction<I, O> f)
throws TranslateException {
List<O> out = f.apply(jobs.stream().map(Job::getInput).collect(Collectors.toList()));
if (out != null) {
for (int i = 0; i < out.size(); i++) {
jobs.get(i).setOutput(out.get(i));
}
}
}
/**
* Sets a {@link Job} output to a failure.
*
* @param job the job to set the output on
* @param code the failure code
* @param message the failure message
*/
public static void setFailOutput(Job<Input, Output> job, int code, String message) {
Output output = new Output();
output.setCode(code);
output.setMessage(message);
job.setOutput(output);
}
/**
* Returns the worker pool config that is associated with this job.
*
* @return the worker pool config that is associated with this job
*/
public WorkerPoolConfig<I, O> getWpc() {
return workerPoolConfig;
}
/**
* Returns the input data.
*
* @return the input data
*/
public I getInput() {
return input;
}
/**
* Returns the output data.
*
* @return the output data
*/
public O getOutput() {
return output;
}
/**
* Sets the output of the job.
*
* @param output the job output
*/
public void setOutput(O output) {
this.output = output;
}
/**
* Returns the wait time of this job.
*
* @return the wait time of this job in mirco seconds
*/
public long getWaitingMicroSeconds() {
return (System.nanoTime() - begin) / 1000;
}
/**
* Returns the task to run for the job.
*
* @return the task to run for the job
*/
public Optional<JobFunction<I, O>> getRunner() {
return Optional.ofNullable(runner);
}
}