org.apache.pulsar.client.impl.schema.BooleanSchema Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.pulsar.client.impl.schema;
import org.apache.pulsar.shade.io.netty.buffer.ByteBuf;
import org.apache.pulsar.client.api.SchemaSerializationException;
import org.apache.pulsar.common.schema.SchemaInfo;
import org.apache.pulsar.common.schema.SchemaType;
/**
* A schema for `Boolean`.
*/
public class BooleanSchema extends AbstractSchema {
private static final BooleanSchema INSTANCE;
private static final SchemaInfo SCHEMA_INFO;
static {
SCHEMA_INFO = SchemaInfoImpl.builder()
.name("Boolean")
.type(SchemaType.BOOLEAN)
.schema(new byte[0]).build();
INSTANCE = new BooleanSchema();
}
public static BooleanSchema of() {
return INSTANCE;
}
@Override
public void validate(byte[] message) {
if (message.length != 1) {
throw new SchemaSerializationException("Size of data received by BooleanSchema is not 1");
}
}
@Override
public byte[] encode(Boolean message) {
if (null == message) {
return null;
} else {
return new byte[]{(byte) (message ? 1 : 0)};
}
}
@Override
public Boolean decode(byte[] bytes) {
if (null == bytes) {
return null;
}
validate(bytes);
return bytes[0] != 0;
}
@Override
public Boolean decode(ByteBuf byteBuf) {
if (null == byteBuf) {
return null;
}
return byteBuf.getBoolean(0);
}
@Override
public SchemaInfo getSchemaInfo() {
return SCHEMA_INFO;
}
}