com.hazelcast.internal.serialization.impl.AbstractGenericRecord Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2024, Hazelcast, Inc. 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.
* 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 com.hazelcast.internal.serialization.impl;
import com.hazelcast.internal.json.JsonEscape;
import com.hazelcast.nio.serialization.FieldKind;
import javax.annotation.Nonnull;
import java.util.Objects;
import java.util.Set;
import static com.hazelcast.internal.serialization.impl.FieldOperations.fieldOperations;
/**
* Implementation of GenericRecord interface to give common equals and hashcode implementation
*
* See the javadoc of { InternalGenericRecord} for GenericRecord class hierarchy.
*/
public abstract class AbstractGenericRecord implements InternalGenericRecord {
protected abstract Object getClassIdentifier();
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof AbstractGenericRecord)) {
return false;
}
AbstractGenericRecord that = (AbstractGenericRecord) o;
if (!that.getClassIdentifier().equals(getClassIdentifier())) {
return false;
}
Set thatFieldNames = that.getFieldNames();
Set thisFieldNames = getFieldNames();
if (!Objects.equals(thatFieldNames, thisFieldNames)) {
return false;
}
for (String fieldName : thatFieldNames) {
FieldKind thatKind = that.getFieldKind(fieldName);
FieldKind thisKind = getFieldKind(fieldName);
if (thatKind != thisKind) {
return false;
}
if (FieldOperations.isArrayKind(thatKind)) {
if (!Objects.deepEquals(readAny(fieldName), that.readAny(fieldName))) {
return false;
}
} else {
if (!Objects.equals(readAny(fieldName), that.readAny(fieldName))) {
return false;
}
}
}
return true;
}
public int hashCode() {
int result = Objects.hash(getClassIdentifier());
Set thisFieldNames = getFieldNames();
for (String fieldName : thisFieldNames) {
FieldKind fieldKind = getFieldKind(fieldName);
result = 31 * result + fieldOperations(fieldKind).hashCode(this, fieldName);
}
return result;
}
public final T readAny(@Nonnull String fieldName) {
FieldKind kind = getFieldKind(fieldName);
return (T) fieldOperations(kind).readGenericRecordOrPrimitive(this, fieldName);
}
/**
* Utility method to build a json String representation of the fields together with field names
*
* @param stringBuilder to be populated via json representation
*/
protected void writeFieldsToStringBuilder(StringBuilder stringBuilder) {
Set fieldNames = getFieldNames();
stringBuilder.append("{");
int size = fieldNames.size();
int i = 0;
for (String fieldName : fieldNames) {
i++;
JsonEscape.writeEscaped(stringBuilder, fieldName);
stringBuilder.append(": ");
FieldKind fieldKind = getFieldKind(fieldName);
fieldOperations(fieldKind).writeJsonFormattedField(stringBuilder, this, fieldName);
if (size != i) {
stringBuilder.append(", ");
}
}
stringBuilder.append("}");
}
}