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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 thrift
import (
"net"
"time"
)
/**
* Socket implementation of the TTransport interface. To be commented soon!
*/
type TNonblockingSocket struct {
conn net.Conn
addr net.Addr
/**
* Socket timeout
*/
nsecTimeout int64
}
type TNonblockingSocketTransportFactory struct {
addr net.Addr
}
func (p *TNonblockingSocketTransportFactory) GetTransport(trans TTransport) TTransport {
if trans != nil {
t, ok := trans.(*TNonblockingSocket)
if ok {
s, _ := NewTNonblockingSocketAddrTimeout(t.addr, t.nsecTimeout)
return s
}
}
s, _ := NewTNonblockingSocketAddr(p.addr)
return s
}
func NewTNonblockingSocketTransportFactory(addr net.Addr) *TNonblockingSocketTransportFactory {
return &TNonblockingSocketTransportFactory{addr: addr}
}
func NewTNonblockingSocketConn(conn net.Conn) (*TNonblockingSocket, TTransportException) {
s := &TNonblockingSocket{conn: conn, addr: conn.RemoteAddr()}
return s, nil
}
func NewTNonblockingSocketAddr(addr net.Addr) (*TNonblockingSocket, TTransportException) {
s := &TNonblockingSocket{addr: addr}
return s, nil
}
func NewTNonblockingSocketAddrTimeout(addr net.Addr, nsecTimeout int64) (*TNonblockingSocket, TTransportException) {
s := &TNonblockingSocket{addr: addr, nsecTimeout: nsecTimeout}
return s, nil
}
/**
* Sets the socket timeout
*
* @param nsecTimeout Nanoseconds timeout
*/
func (p *TNonblockingSocket) SetTimeout(nsecTimeout int64) error {
p.nsecTimeout = nsecTimeout
return nil
}
func (p *TNonblockingSocket) pushDeadline(read, write bool) {
var t time.Time
if p.nsecTimeout > 0 {
t = time.Now().Add(time.Duration(p.nsecTimeout))
}
if read && write {
p.conn.SetDeadline(t)
} else if read {
p.conn.SetReadDeadline(t)
} else if write {
p.conn.SetWriteDeadline(t)
}
}
/**
* Checks whether the socket is connected.
*/
func (p *TNonblockingSocket) IsOpen() bool {
return p.conn != nil
}
/**
* Connects the socket, creating a new socket object if necessary.
*/
func (p *TNonblockingSocket) Open() error {
if p.IsOpen() {
return NewTTransportException(ALREADY_OPEN, "Socket already connected.")
}
if p.addr == nil {
return NewTTransportException(NOT_OPEN, "Cannot open nil address.")
}
if len(p.addr.Network()) == 0 {
return NewTTransportException(NOT_OPEN, "Cannot open bad network name.")
}
if len(p.addr.String()) == 0 {
return NewTTransportException(NOT_OPEN, "Cannot open bad address.")
}
var err error
if p.conn, err = net.Dial(p.addr.Network(), p.addr.String()); err != nil {
LOGGER.Print("Could not open socket", err.Error())
return NewTTransportException(NOT_OPEN, err.Error())
}
return nil
}
/**
* Perform a nonblocking read into buffer.
*/
func (p *TNonblockingSocket) Read(buf []byte) (int, error) {
if !p.IsOpen() {
return 0, NewTTransportException(NOT_OPEN, "Connection not open")
}
p.pushDeadline(true, false)
n, err := p.conn.Read(buf)
return n, NewTTransportExceptionFromOsError(err)
}
func (p *TNonblockingSocket) ReadAll(buf []byte) (int, error) {
return ReadAllTransport(p, buf)
}
/**
* Perform a nonblocking write of the data in buffer;
*/
func (p *TNonblockingSocket) Write(buf []byte) (int, error) {
if !p.IsOpen() {
return 0, NewTTransportException(NOT_OPEN, "Connection not open")
}
p.pushDeadline(false, true)
return p.conn.Write(buf)
}
/**
* Flushes the underlying output stream if not null.
*/
func (p *TNonblockingSocket) Flush() error {
if !p.IsOpen() {
return NewTTransportException(NOT_OPEN, "Connection not open")
}
f, ok := p.conn.(Flusher)
if ok {
err := f.Flush()
if err != nil {
return NewTTransportExceptionFromOsError(err)
}
}
return nil
}
func (p *TNonblockingSocket) Addr() net.Addr {
return p.addr
}
func (p *TNonblockingSocket) Peek() bool {
return p.IsOpen()
}
/**
* Closes the socket.
*/
func (p *TNonblockingSocket) Close() error {
if p.conn != nil {
if err := p.conn.Close(); err != nil {
LOGGER.Print("Could not close socket.", err.Error())
return err
}
p.conn = nil
}
return nil
}
func (p *TNonblockingSocket) Interrupt() error {
if !p.IsOpen() {
return nil
}
// TODO(pomack) fix Interrupt as it is probably not right
return p.Close()
}
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