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io.cdap.cdap.internal.app.runtime.schedule.DefaultScheduleBuilder Maven / Gradle / Ivy
/*
* Copyright © 2017 Cask Data, Inc.
*
* 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
*
* 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 io.cdap.cdap.internal.app.runtime.schedule;
import com.google.common.collect.ImmutableMap;
import io.cdap.cdap.api.ProgramStatus;
import io.cdap.cdap.api.app.ProgramType;
import io.cdap.cdap.api.schedule.ConstraintProgramScheduleBuilder;
import io.cdap.cdap.api.schedule.ScheduleBuilder;
import io.cdap.cdap.api.schedule.Trigger;
import io.cdap.cdap.api.schedule.TriggerFactory;
import io.cdap.cdap.internal.app.runtime.schedule.constraint.ConcurrencyConstraint;
import io.cdap.cdap.internal.app.runtime.schedule.constraint.DelayConstraint;
import io.cdap.cdap.internal.app.runtime.schedule.constraint.LastRunConstraint;
import io.cdap.cdap.internal.app.runtime.schedule.constraint.TimeRangeConstraint;
import io.cdap.cdap.internal.app.runtime.schedule.store.Schedulers;
import io.cdap.cdap.internal.app.runtime.schedule.trigger.TriggerBuilder;
import io.cdap.cdap.internal.schedule.ScheduleCreationSpec;
import io.cdap.cdap.internal.schedule.constraint.Constraint;
import io.cdap.cdap.proto.ProtoConstraint;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TimeZone;
import java.util.concurrent.TimeUnit;
/**
* The default implementation of {@link ScheduleBuilder}.
*/
public class DefaultScheduleBuilder implements ConstraintProgramScheduleBuilder {
private final String name;
private final TriggerFactory triggerFactory;
private final String programName;
private final List constraints;
private String description;
private Map properties;
private long timeoutMillis = Schedulers.JOB_QUEUE_TIMEOUT_MILLIS;
public DefaultScheduleBuilder(String name, String programName, TriggerFactory triggerFactory) {
this.name = name;
this.description = "";
this.programName = programName;
this.triggerFactory = triggerFactory;
this.properties = new HashMap<>();
this.constraints = new ArrayList<>();
}
@Override
public ScheduleBuilder setDescription(String description) {
this.description = description;
return this;
}
@Override
public ScheduleBuilder setProperties(Map properties) {
this.properties = ImmutableMap.copyOf(properties);
return this;
}
@Override
public ScheduleBuilder setTimeout(long time, TimeUnit unit) {
this.timeoutMillis = unit.toMillis(time);
return this;
}
@Override
public ConstraintProgramScheduleBuilder withConcurrency(int max) {
constraints.add(new ConcurrencyConstraint(max));
return this;
}
@Override
public ScheduleBuilder withDelay(long delay, TimeUnit timeUnit) {
constraints.add(new DelayConstraint(delay, timeUnit));
return this;
}
@Override
public ConstraintProgramScheduleBuilder withTimeWindow(String startTime, String endTime) {
constraints.add(new TimeRangeConstraint(startTime, endTime, TimeZone.getDefault()));
return this;
}
@Override
public ConstraintProgramScheduleBuilder withTimeWindow(String startTime, String endTime, TimeZone timeZone) {
constraints.add(new TimeRangeConstraint(startTime, endTime, timeZone));
return this;
}
@Override
public ConstraintProgramScheduleBuilder withDurationSinceLastRun(long duration, TimeUnit unit) {
constraints.add(new LastRunConstraint(duration, unit));
return this;
}
@Override
public ScheduleCreationSpec triggerByTime(String cronExpression) {
return triggerOn(triggerFactory.byTime(cronExpression));
}
@Override
public ScheduleCreationSpec triggerOnPartitions(String datasetName, int numPartitions) {
return triggerOn(triggerFactory.onPartitions(datasetName, numPartitions));
}
@Override
public ScheduleCreationSpec triggerOnPartitions(String datasetNamespace, String datasetName,
int numPartitions) {
return triggerOn(triggerFactory.onPartitions(datasetNamespace, datasetName, numPartitions));
}
@Override
public ScheduleCreationSpec triggerOnProgramStatus(String programNamespace, String application,
String appVersion, ProgramType programType, String program,
ProgramStatus... programStatuses) {
return triggerOn(triggerFactory.onProgramStatus(programNamespace, application, appVersion,
programType, program, programStatuses));
}
@Override
public ScheduleCreationSpec triggerOnProgramStatus(String programNamespace, String application,
ProgramType programType, String program,
ProgramStatus... programStatuses) {
return triggerOn(triggerFactory.onProgramStatus(programNamespace, application,
programType, program, programStatuses));
}
@Override
public ScheduleCreationSpec triggerOnProgramStatus(String application, ProgramType programType, String program,
ProgramStatus... programStatuses) {
return triggerOn(triggerFactory.onProgramStatus(application, programType, program, programStatuses));
}
@Override
public ScheduleCreationSpec triggerOnProgramStatus(ProgramType programType, String program,
ProgramStatus... programStatuses) {
return triggerOn(triggerFactory.onProgramStatus(programType, program, programStatuses));
}
@Override
public ScheduleCreationSpec triggerOn(Trigger trigger) {
if (trigger instanceof TriggerBuilder) {
return new ScheduleCreationBuilder(name, description, programName, properties, constraints, timeoutMillis,
(TriggerBuilder) trigger);
}
return new ScheduleCreationSpec(name, description, programName, properties, trigger, constraints, timeoutMillis);
}
@Override
public ScheduleBuilder waitUntilMet() {
// user will only be able to call waitUntilMet right after they add a Constraint
constraints.get(constraints.size() - 1).setWaitUntilMet(true);
return this;
}
@Override
public ScheduleBuilder abortIfNotMet() {
// user will only be able to call abortIfNotMet right after they add a Constraint
constraints.get(constraints.size() - 1).setWaitUntilMet(false);
return this;
}
/**
* Inner class that creates a ScheduleCreationSpec from the deployed properties
*/
public class ScheduleCreationBuilder extends ScheduleCreationSpec {
private final TriggerBuilder triggerBuilder;
private ScheduleCreationBuilder(String name, String description, String programName, Map properties,
List constraints, long timeoutMillis,
TriggerBuilder triggerBuilder) {
super(name, description, programName, properties, null, constraints, timeoutMillis);
this.triggerBuilder = triggerBuilder;
}
@Override
public Trigger getTrigger() {
throw new UnsupportedOperationException(String.format("Schedule %s does not have a trigger because it is " +
"missing a defined namespace and application environment",
getName()));
}
public ScheduleCreationSpec build(String namespace, String applicationName, String applicationVersion) {
return new ScheduleCreationSpec(getName(), getDescription(), getProgramName(), getProperties(),
triggerBuilder.build(namespace, applicationName, applicationVersion),
getConstraints(), getTimeoutMillis());
}
}
}
