io.r2dbc.postgresql.util.ByteBufUtils Maven / Gradle / Ivy
/*
* Copyright 2017-2020 the original author or authors.
*
* 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
*
* https://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 io.r2dbc.postgresql.util;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import static io.netty.util.CharsetUtil.UTF_8;
/**
* Utilities for working with {@link ByteBuf}s.
*/
public final class ByteBufUtils {
private ByteBufUtils() {
}
/**
* Decode a {@link ByteBuf} into a {@link String}.
*
* @param byteBuf the {@link ByteBuf} to decode
* @return the {@link String} decoded from the {@link ByteBuf}
* @throws IllegalArgumentException if {@code byteBuf} is {@code null}
*/
public static String decode(ByteBuf byteBuf) {
Assert.requireNonNull(byteBuf, "byteBuf must not be null");
return byteBuf.readCharSequence(byteBuf.readableBytes(), UTF_8).toString();
}
/**
* Encode a {@link CharSequence} into a {@link ByteBuf}.
*
* @param byteBufAllocator the {@link ByteBufAllocator} to use to create a buffer
* @param s the {@link CharSequence} to encode
* @return the {@link ByteBuf} with the {@link CharSequence} encoded within it
* @throws IllegalArgumentException if {@code byteBufAllocator} or {@code s} is {@code null}
*/
public static ByteBuf encode(ByteBufAllocator byteBufAllocator, CharSequence s) {
Assert.requireNonNull(byteBufAllocator, "byteBufAllocator must not be null");
Assert.requireNonNull(s, "s must not be null");
ByteBuf byteBuf = byteBufAllocator.buffer();
byteBuf.writeCharSequence(s, UTF_8);
return byteBuf;
}
}