org.apache.bookkeeper.common.coder.StringUtf8Coder Maven / Gradle / Ivy
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/*
* 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.bookkeeper.common.coder;
import static java.nio.charset.StandardCharsets.UTF_8;
import com.google.common.base.Utf8;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import java.nio.charset.StandardCharsets;
/**
* A coder that encodes strings in utf-8 format.
*/
public final class StringUtf8Coder implements Coder {
/**
* Get the coder to encode strings in utf-8.
*
* @return string coder.
*/
public static StringUtf8Coder of() {
return INSTANCE;
}
private static final StringUtf8Coder INSTANCE = new StringUtf8Coder();
@Override
public void encode(String value, ByteBuf destBuf) {
destBuf.writeBytes(value.getBytes(UTF_8));
}
@Override
public int getSerializedSize(String value) {
return Utf8.encodedLength(value);
}
@Override
public String decode(byte[] data) {
return new String(data, StandardCharsets.UTF_8);
}
@Override
public String decode(ByteBuf data) {
byte[] bytes = ByteBufUtil.getBytes(data);
return decode(bytes);
}
private StringUtf8Coder() {
}
}