/*
* 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.facebook.presto.hive.thrift;
import com.facebook.presto.hive.authentication.HiveMetastoreAuthentication;
import com.google.common.net.HostAndPort;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;
import org.apache.thrift.transport.TTransportException;
import java.io.Closeable;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.Socket;
import java.net.SocketAddress;
public final class Transport
{
public static TTransport create(String host, int port, HostAndPort socksProxy, int timeoutMillis, HiveMetastoreAuthentication authentication)
throws TTransportException
{
try {
TTransport rawTransport = createRaw(host, port, socksProxy, timeoutMillis);
TTransport authenticatedTransport = authentication.authenticate(rawTransport, host);
if (!authenticatedTransport.isOpen()) {
authenticatedTransport.open();
}
return new TTransportWrapper(authenticatedTransport, host);
}
catch (TTransportException e) {
throw rewriteException(e, host);
}
}
private Transport() {}
private static TTransport createRaw(String host, int port, HostAndPort socksProxy, int timeoutMillis)
throws TTransportException
{
if (socksProxy == null) {
return new TSocket(host, port, timeoutMillis);
}
Socket socks = createSocksSocket(socksProxy);
try {
try {
socks.connect(InetSocketAddress.createUnresolved(host, port), timeoutMillis);
socks.setSoTimeout(timeoutMillis);
return new TSocket(socks);
}
catch (Throwable t) {
closeQuietly(socks);
throw t;
}
}
catch (IOException e) {
throw new TTransportException(e);
}
}
private static void closeQuietly(Closeable closeable)
{
try {
closeable.close();
}
catch (IOException e) {
// ignored
}
}
private static Socket createSocksSocket(HostAndPort proxy)
{
SocketAddress address = InetSocketAddress.createUnresolved(proxy.getHostText(), proxy.getPort());
return new Socket(new Proxy(Proxy.Type.SOCKS, address));
}
private static TTransportException rewriteException(TTransportException e, String host)
{
return new TTransportException(e.getType(), String.format("%s: %s", host, e.getMessage()), e.getCause());
}
private static class TTransportWrapper
extends TTransport
{
private final TTransport transport;
private final String host;
TTransportWrapper(TTransport transport, String host)
{
this.transport = transport;
this.host = host;
}
@Override
public boolean isOpen()
{
return transport.isOpen();
}
@Override
public boolean peek()
{
return transport.peek();
}
@Override
public byte[] getBuffer()
{
return transport.getBuffer();
}
@Override
public int getBufferPosition()
{
return transport.getBufferPosition();
}
@Override
public int getBytesRemainingInBuffer()
{
return transport.getBytesRemainingInBuffer();
}
@Override
public void consumeBuffer(int len)
{
transport.consumeBuffer(len);
}
@Override
public void close()
{
transport.close();
}
@Override
public void open()
throws TTransportException
{
try {
transport.open();
}
catch (TTransportException e) {
throw rewriteException(e, host);
}
}
@Override
public int readAll(byte[] bytes, int off, int len)
throws TTransportException
{
try {
return transport.readAll(bytes, off, len);
}
catch (TTransportException e) {
throw rewriteException(e, host);
}
}
@Override
public int read(byte[] bytes, int off, int len)
throws TTransportException
{
try {
return transport.read(bytes, off, len);
}
catch (TTransportException e) {
throw rewriteException(e, host);
}
}
@Override
public void write(byte[] bytes)
throws TTransportException
{
try {
transport.write(bytes);
}
catch (TTransportException e) {
throw rewriteException(e, host);
}
}
@Override
public void write(byte[] bytes, int off, int len)
throws TTransportException
{
try {
transport.write(bytes, off, len);
}
catch (TTransportException e) {
throw rewriteException(e, host);
}
}
@Override
public void flush()
throws TTransportException
{
try {
transport.flush();
}
catch (TTransportException e) {
throw rewriteException(e, host);
}
}
}
}