Java tutorial
/* * Copyright 2015 LINE Corporation * * LINE Corporation 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: * * 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 com.linecorp.armeria.server.thrift; import static java.util.Objects.requireNonNull; import javax.annotation.Nullable; import org.apache.thrift.transport.TTransport; import org.apache.thrift.transport.TTransportException; import io.netty.buffer.ByteBuf; final class TByteBufTransport extends TTransport { private final ByteBuf buf; TByteBufTransport(ByteBuf buf) { this.buf = requireNonNull(buf, "buf"); } @Override public void close() { } @Override public boolean isOpen() { return true; } @Override public void open() { } @Override public int read(byte[] buf, int off, int len) { final int bytesRemaining = this.buf.readableBytes(); final int amtToRead = len > bytesRemaining ? bytesRemaining : len; if (amtToRead > 0) { this.buf.readBytes(buf, off, amtToRead); } return amtToRead; } @Override public int readAll(byte[] buf, int off, int len) throws TTransportException { final int bytesRemaining = this.buf.readableBytes(); if (len > bytesRemaining) { throw new TTransportException("unexpected end of frame"); } this.buf.readBytes(buf, off, len); return len; } @Override public void write(byte[] buf, int off, int len) { this.buf.writeBytes(buf, off, len); } @Nullable @Override public byte[] getBuffer() { final ByteBuf buf = this.buf; if (!buf.hasArray()) { return null; } else { return buf.array(); } } @Override public int getBufferPosition() { final ByteBuf buf = this.buf; if (!buf.hasArray()) { return 0; } else { return buf.arrayOffset() + buf.readerIndex(); } } @Override public int getBytesRemainingInBuffer() { final ByteBuf buf = this.buf; if (buf.hasArray()) { return buf.readableBytes(); } else { return -1; } } @Override public void consumeBuffer(int len) { buf.skipBytes(len); } }