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SchedulerClientMain.java
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SchedulerClientMain.java
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/*
* Copyright (C) Gustav Karlsson
*
* <p>Licensed 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
*
* <p>http://www.apache.org/licenses/LICENSE-2.0
*
* <p>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 com.github.kagkarlsson.examples;
import com.github.kagkarlsson.examples.helpers.Example;
import com.github.kagkarlsson.scheduler.ScheduledExecutionsFilter;
import com.github.kagkarlsson.scheduler.SchedulerClient;
import com.github.kagkarlsson.scheduler.serializer.JacksonSerializer;
import com.github.kagkarlsson.scheduler.task.helper.OneTimeTask;
import com.github.kagkarlsson.scheduler.task.helper.Tasks;
import java.time.Instant;
import javax.sql.DataSource;
public class SchedulerClientMain extends Example {
public static void main(String[] args) {
new SchedulerClientMain().runWithDatasource();
}
@Override
public void run(DataSource dataSource) {
final OneTimeTask<Integer> task =
Tasks.oneTime("task-a", Integer.class)
.execute(
(taskInstance, executionContext) -> {
System.out.println("Task a executed");
});
final SchedulerClient clientWithTypeInformation =
SchedulerClient.Builder.create(dataSource, task)
.serializer(new JacksonSerializer())
.build();
final Instant now = Instant.now();
for (int i = 0; i < 5; i++) {
clientWithTypeInformation.schedule(task.instance("id" + i, i), now.plusSeconds(i));
}
System.out.println("Listing scheduled executions");
clientWithTypeInformation
.getScheduledExecutions(ScheduledExecutionsFilter.all())
.forEach(
execution -> {
System.out.printf(
"Scheduled execution: taskName=%s, instance=%s, executionTime=%s, data=%s%n",
execution.getTaskInstance().getTaskName(),
execution.getTaskInstance().getId(),
execution.getExecutionTime(),
execution.getData());
});
final SchedulerClient rawClient = SchedulerClient.Builder.create(dataSource).build();
System.out.println(
"Listing scheduled executions for client with no known tasks (data-classes and implementations)");
rawClient
.getScheduledExecutions(ScheduledExecutionsFilter.all())
.forEach(
execution -> {
System.out.printf(
"Scheduled execution: taskName=%s, instance=%s, executionTime=%s, data=%s%n",
execution.getTaskInstance().getTaskName(),
execution.getTaskInstance().getId(),
execution.getExecutionTime(),
new String((byte[]) execution.getData()));
});
}
}