software.amazon.awssdk.services.emr.model.AutoScalingPolicy Maven / Gradle / Ivy
/*
* Copyright 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 software.amazon.awssdk.services.emr.model;
import java.beans.Transient;
import java.io.Serializable;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import java.util.Optional;
import java.util.function.BiConsumer;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import software.amazon.awssdk.annotations.Generated;
import software.amazon.awssdk.core.SdkField;
import software.amazon.awssdk.core.SdkPojo;
import software.amazon.awssdk.core.protocol.MarshallLocation;
import software.amazon.awssdk.core.protocol.MarshallingType;
import software.amazon.awssdk.core.traits.ListTrait;
import software.amazon.awssdk.core.traits.LocationTrait;
import software.amazon.awssdk.core.util.DefaultSdkAutoConstructList;
import software.amazon.awssdk.core.util.SdkAutoConstructList;
import software.amazon.awssdk.utils.ToString;
import software.amazon.awssdk.utils.builder.CopyableBuilder;
import software.amazon.awssdk.utils.builder.ToCopyableBuilder;
/**
*
* An automatic scaling policy for a core instance group or task instance group in an Amazon EMR cluster. An automatic
* scaling policy defines how an instance group dynamically adds and terminates EC2 instances in response to the value
* of a CloudWatch metric. See PutAutoScalingPolicy.
*
*/
@Generated("software.amazon.awssdk:codegen")
public final class AutoScalingPolicy implements SdkPojo, Serializable,
ToCopyableBuilder {
private static final SdkField CONSTRAINTS_FIELD = SdkField
. builder(MarshallingType.SDK_POJO).memberName("Constraints")
.getter(getter(AutoScalingPolicy::constraints)).setter(setter(Builder::constraints))
.constructor(ScalingConstraints::builder)
.traits(LocationTrait.builder().location(MarshallLocation.PAYLOAD).locationName("Constraints").build()).build();
private static final SdkField> RULES_FIELD = SdkField
.> builder(MarshallingType.LIST)
.memberName("Rules")
.getter(getter(AutoScalingPolicy::rules))
.setter(setter(Builder::rules))
.traits(LocationTrait.builder().location(MarshallLocation.PAYLOAD).locationName("Rules").build(),
ListTrait
.builder()
.memberLocationName(null)
.memberFieldInfo(
SdkField. builder(MarshallingType.SDK_POJO)
.constructor(ScalingRule::builder)
.traits(LocationTrait.builder().location(MarshallLocation.PAYLOAD)
.locationName("member").build()).build()).build()).build();
private static final List> SDK_FIELDS = Collections.unmodifiableList(Arrays
.asList(CONSTRAINTS_FIELD, RULES_FIELD));
private static final long serialVersionUID = 1L;
private final ScalingConstraints constraints;
private final List rules;
private AutoScalingPolicy(BuilderImpl builder) {
this.constraints = builder.constraints;
this.rules = builder.rules;
}
/**
*
* The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity will not
* cause an instance group to grow above or below these limits.
*
*
* @return The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity will
* not cause an instance group to grow above or below these limits.
*/
public final ScalingConstraints constraints() {
return constraints;
}
/**
* For responses, this returns true if the service returned a value for the Rules property. This DOES NOT check that
* the value is non-empty (for which, you should check the {@code isEmpty()} method on the property). This is useful
* because the SDK will never return a null collection or map, but you may need to differentiate between the service
* returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true
* if a value for the property was specified in the request builder, and false if a value was not specified.
*/
public final boolean hasRules() {
return rules != null && !(rules instanceof SdkAutoConstructList);
}
/**
*
* The scale-in and scale-out rules that comprise the automatic scaling policy.
*
*
* Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
*
*
* This method will never return null. If you would like to know whether the service returned this field (so that
* you can differentiate between null and empty), you can use the {@link #hasRules} method.
*
*
* @return The scale-in and scale-out rules that comprise the automatic scaling policy.
*/
public final List rules() {
return rules;
}
@Override
public Builder toBuilder() {
return new BuilderImpl(this);
}
public static Builder builder() {
return new BuilderImpl();
}
public static Class serializableBuilderClass() {
return BuilderImpl.class;
}
@Override
public final int hashCode() {
int hashCode = 1;
hashCode = 31 * hashCode + Objects.hashCode(constraints());
hashCode = 31 * hashCode + Objects.hashCode(hasRules() ? rules() : null);
return hashCode;
}
@Override
public final boolean equals(Object obj) {
return equalsBySdkFields(obj);
}
@Override
public final boolean equalsBySdkFields(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof AutoScalingPolicy)) {
return false;
}
AutoScalingPolicy other = (AutoScalingPolicy) obj;
return Objects.equals(constraints(), other.constraints()) && hasRules() == other.hasRules()
&& Objects.equals(rules(), other.rules());
}
/**
* Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be
* redacted from this string using a placeholder value.
*/
@Override
public final String toString() {
return ToString.builder("AutoScalingPolicy").add("Constraints", constraints()).add("Rules", hasRules() ? rules() : null)
.build();
}
public final Optional getValueForField(String fieldName, Class clazz) {
switch (fieldName) {
case "Constraints":
return Optional.ofNullable(clazz.cast(constraints()));
case "Rules":
return Optional.ofNullable(clazz.cast(rules()));
default:
return Optional.empty();
}
}
@Override
public final List> sdkFields() {
return SDK_FIELDS;
}
private static Function getter(Function g) {
return obj -> g.apply((AutoScalingPolicy) obj);
}
private static BiConsumer setter(BiConsumer s) {
return (obj, val) -> s.accept((Builder) obj, val);
}
public interface Builder extends SdkPojo, CopyableBuilder {
/**
*
* The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity will not
* cause an instance group to grow above or below these limits.
*
*
* @param constraints
* The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity
* will not cause an instance group to grow above or below these limits.
* @return Returns a reference to this object so that method calls can be chained together.
*/
Builder constraints(ScalingConstraints constraints);
/**
*
* The upper and lower EC2 instance limits for an automatic scaling policy. Automatic scaling activity will not
* cause an instance group to grow above or below these limits.
*
* This is a convenience that creates an instance of the {@link ScalingConstraints.Builder} avoiding the need to
* create one manually via {@link ScalingConstraints#builder()}.
*
* When the {@link Consumer} completes, {@link ScalingConstraints.Builder#build()} is called immediately and its
* result is passed to {@link #constraints(ScalingConstraints)}.
*
* @param constraints
* a consumer that will call methods on {@link ScalingConstraints.Builder}
* @return Returns a reference to this object so that method calls can be chained together.
* @see #constraints(ScalingConstraints)
*/
default Builder constraints(Consumer constraints) {
return constraints(ScalingConstraints.builder().applyMutation(constraints).build());
}
/**
*
* The scale-in and scale-out rules that comprise the automatic scaling policy.
*
*
* @param rules
* The scale-in and scale-out rules that comprise the automatic scaling policy.
* @return Returns a reference to this object so that method calls can be chained together.
*/
Builder rules(Collection rules);
/**
*
* The scale-in and scale-out rules that comprise the automatic scaling policy.
*
*
* @param rules
* The scale-in and scale-out rules that comprise the automatic scaling policy.
* @return Returns a reference to this object so that method calls can be chained together.
*/
Builder rules(ScalingRule... rules);
/**
*
* The scale-in and scale-out rules that comprise the automatic scaling policy.
*
* This is a convenience that creates an instance of the {@link List.Builder} avoiding the need to
* create one manually via {@link List#builder()}.
*
* When the {@link Consumer} completes, {@link List.Builder#build()} is called immediately and its
* result is passed to {@link #rules(List)}.
*
* @param rules
* a consumer that will call methods on {@link List.Builder}
* @return Returns a reference to this object so that method calls can be chained together.
* @see #rules(List)
*/
Builder rules(Consumer... rules);
}
static final class BuilderImpl implements Builder {
private ScalingConstraints constraints;
private List rules = DefaultSdkAutoConstructList.getInstance();
private BuilderImpl() {
}
private BuilderImpl(AutoScalingPolicy model) {
constraints(model.constraints);
rules(model.rules);
}
public final ScalingConstraints.Builder getConstraints() {
return constraints != null ? constraints.toBuilder() : null;
}
public final void setConstraints(ScalingConstraints.BuilderImpl constraints) {
this.constraints = constraints != null ? constraints.build() : null;
}
@Override
@Transient
public final Builder constraints(ScalingConstraints constraints) {
this.constraints = constraints;
return this;
}
public final List getRules() {
List result = ScalingRuleListCopier.copyToBuilder(this.rules);
if (result instanceof SdkAutoConstructList) {
return null;
}
return result;
}
public final void setRules(Collection rules) {
this.rules = ScalingRuleListCopier.copyFromBuilder(rules);
}
@Override
@Transient
public final Builder rules(Collection rules) {
this.rules = ScalingRuleListCopier.copy(rules);
return this;
}
@Override
@Transient
@SafeVarargs
public final Builder rules(ScalingRule... rules) {
rules(Arrays.asList(rules));
return this;
}
@Override
@Transient
@SafeVarargs
public final Builder rules(Consumer... rules) {
rules(Stream.of(rules).map(c -> ScalingRule.builder().applyMutation(c).build()).collect(Collectors.toList()));
return this;
}
@Override
public AutoScalingPolicy build() {
return new AutoScalingPolicy(this);
}
@Override
public List> sdkFields() {
return SDK_FIELDS;
}
}
}
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