org.elasticsearch.xpack.core.ml.job.config.RuleCondition Maven / Gradle / Ivy
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0; you may not use this file except in compliance with the Elastic License
* 2.0.
*/
package org.elasticsearch.xpack.core.ml.job.config;
import org.elasticsearch.common.ParseField;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.xcontent.ConstructingObjectParser;
import org.elasticsearch.common.xcontent.ToXContentObject;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.Locale;
import java.util.Objects;
public class RuleCondition implements ToXContentObject, Writeable {
public static final ParseField RULE_CONDITION_FIELD = new ParseField("rule_condition");
public static final ParseField APPLIES_TO_FIELD = new ParseField("applies_to");
public static final ParseField VALUE_FIELD = new ParseField("value");
// These parsers follow the pattern that metadata is parsed leniently (to allow for enhancements), whilst config is parsed strictly
public static final ConstructingObjectParser LENIENT_PARSER = createParser(true);
public static final ConstructingObjectParser STRICT_PARSER = createParser(false);
private static ConstructingObjectParser createParser(boolean ignoreUnknownFields) {
ConstructingObjectParser parser = new ConstructingObjectParser<>(RULE_CONDITION_FIELD.getPreferredName(),
ignoreUnknownFields, a -> new RuleCondition((AppliesTo) a[0], (Operator) a[1], (double) a[2]));
parser.declareString(ConstructingObjectParser.constructorArg(), AppliesTo::fromString, APPLIES_TO_FIELD);
parser.declareString(ConstructingObjectParser.constructorArg(), Operator::fromString, Operator.OPERATOR_FIELD);
parser.declareDouble(ConstructingObjectParser.constructorArg(), VALUE_FIELD);
return parser;
}
private final AppliesTo appliesTo;
private final Operator operator;
private final double value;
public RuleCondition(StreamInput in) throws IOException {
appliesTo = AppliesTo.readFromStream(in);
operator = Operator.readFromStream(in);
value = in.readDouble();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
appliesTo.writeTo(out);
operator.writeTo(out);
out.writeDouble(value);
}
public RuleCondition(AppliesTo appliesTo, Operator operator, double value) {
this.appliesTo = appliesTo;
this.operator = operator;
this.value = value;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.field(APPLIES_TO_FIELD.getPreferredName(), appliesTo);
builder.field(Operator.OPERATOR_FIELD.getPreferredName(), operator);
builder.field(VALUE_FIELD.getPreferredName(), value);
builder.endObject();
return builder;
}
public AppliesTo getAppliesTo() {
return appliesTo;
}
public Operator getOperator() {
return operator;
}
public double getValue() {
return value;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof RuleCondition == false) {
return false;
}
RuleCondition other = (RuleCondition) obj;
return appliesTo == other.appliesTo && operator == other.operator && value == other.value;
}
@Override
public int hashCode() {
return Objects.hash(appliesTo, operator, value);
}
public static RuleCondition createTime(Operator operator, long epochSeconds) {
return new RuleCondition(AppliesTo.TIME, operator, epochSeconds);
}
public enum AppliesTo implements Writeable {
ACTUAL,
TYPICAL,
DIFF_FROM_TYPICAL,
TIME;
public static AppliesTo fromString(String value) {
return valueOf(value.toUpperCase(Locale.ROOT));
}
public static AppliesTo readFromStream(StreamInput in) throws IOException {
return in.readEnum(AppliesTo.class);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeEnum(this);
}
@Override
public String toString() {
return name().toLowerCase(Locale.ROOT);
}
}
}