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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 (
"bytes"
"net/http"
"net/url"
"strconv"
)
type THttpClient struct {
response *http.Response
url *url.URL
requestBuffer *bytes.Buffer
nsecConnectTimeout int64
nsecReadTimeout int64
}
type THttpClientTransportFactory struct {
url string
isPost bool
}
func (p *THttpClientTransportFactory) GetTransport(trans TTransport) TTransport {
if trans != nil {
t, ok := trans.(*THttpClient)
if ok && t.url != nil {
if t.requestBuffer != nil {
t2, _ := NewTHttpPostClient(t.url.String())
return t2
}
t2, _ := NewTHttpClient(t.url.String())
return t2
}
}
if p.isPost {
s, _ := NewTHttpPostClient(p.url)
return s
}
s, _ := NewTHttpClient(p.url)
return s
}
func NewTHttpClientTransportFactory(url string) *THttpClientTransportFactory {
return &THttpClientTransportFactory{url: url, isPost: false}
}
func NewTHttpPostClientTransportFactory(url string) *THttpClientTransportFactory {
return &THttpClientTransportFactory{url: url, isPost: true}
}
func NewTHttpClient(urlstr string) (TTransport, error) {
parsedURL, err := url.Parse(urlstr)
if err != nil {
return nil, err
}
response, err := http.Get(urlstr)
if err != nil {
return nil, err
}
return &THttpClient{response: response, url: parsedURL}, nil
}
func NewTHttpPostClient(urlstr string) (TTransport, error) {
parsedURL, err := url.Parse(urlstr)
if err != nil {
return nil, err
}
buf := make([]byte, 0, 1024)
return &THttpClient{url: parsedURL, requestBuffer: bytes.NewBuffer(buf)}, nil
}
func (p *THttpClient) Open() error {
// do nothing
return nil
}
func (p *THttpClient) IsOpen() bool {
return p.response != nil || p.requestBuffer != nil
}
func (p *THttpClient) Peek() bool {
return p.IsOpen()
}
func (p *THttpClient) Close() error {
if p.response != nil && p.response.Body != nil {
err := p.response.Body.Close()
p.response = nil
return err
}
if p.requestBuffer != nil {
p.requestBuffer.Reset()
p.requestBuffer = nil
}
return nil
}
func (p *THttpClient) Read(buf []byte) (int, error) {
if p.response == nil {
return 0, NewTTransportException(NOT_OPEN, "Response buffer is empty, no request.")
}
n, err := p.response.Body.Read(buf)
return n, NewTTransportExceptionFromOsError(err)
}
func (p *THttpClient) ReadAll(buf []byte) (int, error) {
return ReadAllTransport(p, buf)
}
func (p *THttpClient) Write(buf []byte) (int, error) {
n, err := p.requestBuffer.Write(buf)
return n, err
}
func (p *THttpClient) Flush() error {
response, err := http.Post(p.url.String(), "application/x-thrift", p.requestBuffer)
if err != nil {
return NewTTransportExceptionFromOsError(err)
}
if response.StatusCode != http.StatusOK {
// TODO(pomack) log bad response
return NewTTransportException(UNKNOWN_TRANSPORT_EXCEPTION, "HTTP Response code: "+strconv.Itoa(response.StatusCode))
}
p.response = response
return nil
}
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