com.hazelcast.client.impl.protocol.codec.PredicateConfigCodec Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2018, 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.client.impl.protocol.codec;
import com.hazelcast.annotation.Codec;
import com.hazelcast.annotation.Since;
import com.hazelcast.client.impl.protocol.ClientMessage;
import com.hazelcast.client.impl.protocol.task.dynamicconfig.PredicateConfigHolder;
import com.hazelcast.client.impl.protocol.util.ParameterUtil;
import com.hazelcast.nio.Bits;
import com.hazelcast.nio.serialization.Data;
@Codec(PredicateConfigHolder.class)
@Since("1.5")
public final class PredicateConfigCodec {
private static final int ENCODED_BOOLEANS = 3;
private PredicateConfigCodec() {
}
public static PredicateConfigHolder decode(ClientMessage clientMessage) {
String className = null;
String sql = null;
Data implementation = null;
boolean isNullClassName = clientMessage.getBoolean();
if (!isNullClassName) {
className = clientMessage.getStringUtf8();
}
boolean isNullSql = clientMessage.getBoolean();
if (!isNullSql) {
sql = clientMessage.getStringUtf8();
}
boolean isNullImplementation = clientMessage.getBoolean();
if (!isNullImplementation) {
implementation = clientMessage.getData();
}
return new PredicateConfigHolder(className, sql, implementation);
}
public static void encode(PredicateConfigHolder config, ClientMessage clientMessage) {
boolean isNullClassName = config.getClassName() == null;
boolean isNullSql = config.getSql() == null;
boolean isNullImplementation = config.getImplementation() == null;
clientMessage.set(isNullClassName);
if (!isNullClassName) {
clientMessage.set(config.getClassName());
}
clientMessage.set(isNullSql);
if (!isNullSql) {
clientMessage.set(config.getSql());
}
clientMessage.set(isNullImplementation);
if (!isNullImplementation) {
clientMessage.set(config.getImplementation());
}
}
public static int calculateDataSize(PredicateConfigHolder config) {
boolean hasClassName = config.getClassName() != null;
boolean hasSql = config.getSql() != null;
boolean hasImplementation = config.getImplementation() != null;
int dataSize = ENCODED_BOOLEANS * Bits.BOOLEAN_SIZE_IN_BYTES;
if (hasClassName) {
dataSize += ParameterUtil.calculateDataSize(config.getClassName());
}
if (hasSql) {
dataSize += ParameterUtil.calculateDataSize(config.getSql());
}
if (hasImplementation) {
dataSize += ParameterUtil.calculateDataSize(config.getImplementation());
}
return dataSize;
}
}