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org.elasticsearch.xpack.core.ml.dataframe.explain.FieldSelection 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.dataframe.explain;
import org.elasticsearch.common.Nullable;
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.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Objects;
import java.util.Set;
public class FieldSelection implements ToXContentObject, Writeable {
private static final ParseField NAME = new ParseField("name");
private static final ParseField MAPPING_TYPES = new ParseField("mapping_types");
private static final ParseField IS_INCLUDED = new ParseField("is_included");
private static final ParseField IS_REQUIRED = new ParseField("is_required");
private static final ParseField FEATURE_TYPE = new ParseField("feature_type");
private static final ParseField REASON = new ParseField("reason");
public enum FeatureType {
CATEGORICAL, NUMERICAL;
public static FeatureType fromString(String value) {
return FeatureType.valueOf(value.toUpperCase(Locale.ROOT));
}
@Override
public String toString() {
return name().toLowerCase(Locale.ROOT);
}
}
@SuppressWarnings("unchecked")
public static final ConstructingObjectParser PARSER = new ConstructingObjectParser<>("field_selection",
a -> new FieldSelection((String) a[0], new HashSet<>((List) a[1]), (boolean) a[2], (boolean) a[3], (FeatureType) a[4],
(String) a[5]));
static {
PARSER.declareString(ConstructingObjectParser.constructorArg(), NAME);
PARSER.declareStringArray(ConstructingObjectParser.constructorArg(), MAPPING_TYPES);
PARSER.declareBoolean(ConstructingObjectParser.constructorArg(), IS_INCLUDED);
PARSER.declareBoolean(ConstructingObjectParser.constructorArg(), IS_REQUIRED);
PARSER.declareString(ConstructingObjectParser.optionalConstructorArg(), FeatureType::fromString, FEATURE_TYPE);
PARSER.declareString(ConstructingObjectParser.optionalConstructorArg(), REASON);
}
private final String name;
private final Set mappingTypes;
private final boolean isIncluded;
private final boolean isRequired;
private final FeatureType featureType;
private final String reason;
public static FieldSelection included(String name, Set mappingTypes, boolean isRequired, FeatureType featureType) {
return new FieldSelection(name, mappingTypes, true, isRequired, featureType, null);
}
public static FieldSelection excluded(String name, Set mappingTypes, String reason) {
return new FieldSelection(name, mappingTypes, false, false, null, reason);
}
FieldSelection(String name, Set mappingTypes, boolean isIncluded, boolean isRequired, @Nullable FeatureType featureType,
@Nullable String reason) {
this.name = Objects.requireNonNull(name);
this.mappingTypes = Collections.unmodifiableSet(mappingTypes);
this.isIncluded = isIncluded;
this.isRequired = isRequired;
this.featureType = featureType;
this.reason = reason;
}
public FieldSelection(StreamInput in) throws IOException {
this.name = in.readString();
this.mappingTypes = Collections.unmodifiableSet(in.readSet(StreamInput::readString));
this.isIncluded = in.readBoolean();
this.isRequired = in.readBoolean();
boolean hasFeatureType = in.readBoolean();
if (hasFeatureType) {
this.featureType = in.readEnum(FeatureType.class);
} else {
this.featureType = null;
}
this.reason = in.readOptionalString();
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeString(name);
out.writeCollection(mappingTypes, StreamOutput::writeString);
out.writeBoolean(isIncluded);
out.writeBoolean(isRequired);
if (featureType == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
out.writeEnum(featureType);
}
out.writeOptionalString(reason);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
builder.field(NAME.getPreferredName(), name);
builder.field(MAPPING_TYPES.getPreferredName(), mappingTypes);
builder.field(IS_INCLUDED.getPreferredName(), isIncluded);
builder.field(IS_REQUIRED.getPreferredName(), isRequired);
if (featureType != null) {
builder.field(FEATURE_TYPE.getPreferredName(), featureType);
}
if (reason != null) {
builder.field(REASON.getPreferredName(), reason);
}
builder.endObject();
return builder;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
FieldSelection that = (FieldSelection) o;
return Objects.equals(name, that.name)
&& Objects.equals(mappingTypes, that.mappingTypes)
&& isIncluded == that.isIncluded
&& isRequired == that.isRequired
&& Objects.equals(featureType, that.featureType)
&& Objects.equals(reason, that.reason);
}
@Override
public int hashCode() {
return Objects.hash(name, mappingTypes, isIncluded, isRequired, featureType, reason);
}
public String getName() {
return name;
}
public Set getMappingTypes() {
return mappingTypes;
}
public boolean isIncluded() {
return isIncluded;
}
public boolean isRequired() {
return isRequired;
}
@Nullable
public FeatureType getFeatureType() {
return featureType;
}
@Nullable
public String getReason() {
return reason;
}
}