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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.searchlib.expression;
import com.yahoo.vespa.objects.Deserializer;
import com.yahoo.vespa.objects.ObjectVisitor;
import com.yahoo.vespa.objects.Serializer;
import java.util.Objects;
/**
* This function is an instruction to do a lookup in a map attribute, returning the value.
*
* The key is either specified explicitly or found via a key source attribute.
* Two underlying attributes are used to represent the map attribute (the key and value attributes).
*
* @author geirst
*/
public class AttributeMapLookupNode extends AttributeNode {
public static final int classId = registerClass(0x4000 + 145, AttributeMapLookupNode.class, AttributeMapLookupNode::new);
private String keyAttribute = "";
private String valueAttribute = "";
private String key = "";
private String keySourceAttribute = "";
private AttributeMapLookupNode(String attributeExpression, String keyAttribute, String valueAttribute,
String key, String keySourceAttribute) {
super(attributeExpression);
this.keyAttribute = keyAttribute;
this.valueAttribute = valueAttribute;
this.key = key;
this.keySourceAttribute = keySourceAttribute;
}
public AttributeMapLookupNode() {
}
public static AttributeMapLookupNode fromKey(String attributeExpression, String keyAttribute, String valueAttribute, String key) {
return new AttributeMapLookupNode(attributeExpression, keyAttribute, valueAttribute, key, "");
}
public static AttributeMapLookupNode fromKeySourceAttribute(String attributeExpression, String keyAttribute, String valueAttribute, String keySourceAttribute) {
return new AttributeMapLookupNode(attributeExpression, keyAttribute, valueAttribute, "", keySourceAttribute);
}
@Override
protected int onGetClassId() {
return classId;
}
@Override
protected void onSerialize(Serializer buf) {
super.onSerialize(buf);
putUtf8(buf, keyAttribute);
putUtf8(buf, valueAttribute);
putUtf8(buf, key);
putUtf8(buf, keySourceAttribute);
}
@Override
protected void onDeserialize(Deserializer buf) {
super.onDeserialize(buf);
keyAttribute = getUtf8(buf);
valueAttribute = getUtf8(buf);
key = getUtf8(buf);
keySourceAttribute = getUtf8(buf);
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), keyAttribute, valueAttribute, key, keySourceAttribute);
}
@Override
protected boolean equalsFunction(FunctionNode obj) {
AttributeMapLookupNode that = (AttributeMapLookupNode) obj;
return super.equalsFunction(obj) &&
Objects.equals(keyAttribute, that.keyAttribute) &&
Objects.equals(valueAttribute, that.valueAttribute) &&
Objects.equals(key, that.key) &&
Objects.equals(keySourceAttribute, that.keySourceAttribute);
}
@Override
public void visitMembers(ObjectVisitor visitor) {
super.visitMembers(visitor);
visitor.visit("keyAttribute", keyAttribute);
visitor.visit("valueAttribute", valueAttribute);
visitor.visit("key", key);
visitor.visit("keySourceAttribute", keySourceAttribute);
}
}
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