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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 org.apache.thrift.transport;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.IOException;
import java.net.URL;
import java.net.HttpURLConnection;
import java.util.HashMap;
import java.util.Map;
/**
* HTTP implementation of the TTransport interface. Used for working with a
* Thrift web services implementation.
*
*/
public class THttpClient extends TTransport {
private URL url_ = null;
private final ByteArrayOutputStream requestBuffer_ =
new ByteArrayOutputStream();
private InputStream inputStream_ = null;
private int connectTimeout_ = 0;
private int readTimeout_ = 0;
private Map<String,String> customHeaders_ = null;
public THttpClient(String url) throws TTransportException {
try {
url_ = new URL(url);
} catch (IOException iox) {
throw new TTransportException(iox);
}
}
public void setConnectTimeout(int timeout) {
connectTimeout_ = timeout;
}
public void setReadTimeout(int timeout) {
readTimeout_ = timeout;
}
public void setCustomHeaders(Map<String,String> headers) {
customHeaders_ = headers;
}
public void setCustomHeader(String key, String value) {
if (customHeaders_ == null) {
customHeaders_ = new HashMap<String, String>();
}
customHeaders_.put(key, value);
}
public void open() {}
public void close() {
if (null != inputStream_) {
try {
inputStream_.close();
} catch (IOException ioe) {
;
}
inputStream_ = null;
}
}
public boolean isOpen() {
return true;
}
public int read(byte[] buf, int off, int len) throws TTransportException {
if (inputStream_ == null) {
throw new TTransportException("Response buffer is empty, no request.");
}
try {
int ret = inputStream_.read(buf, off, len);
if (ret == -1) {
throw new TTransportException("No more data available.");
}
return ret;
} catch (IOException iox) {
throw new TTransportException(iox);
}
}
public void write(byte[] buf, int off, int len) {
requestBuffer_.write(buf, off, len);
}
public void flush() throws TTransportException {
// Extract request and reset buffer
byte[] data = requestBuffer_.toByteArray();
requestBuffer_.reset();
try {
// Create connection object
HttpURLConnection connection = (HttpURLConnection)url_.openConnection();
// Timeouts, only if explicitly set
if (connectTimeout_ > 0) {
connection.setConnectTimeout(connectTimeout_);
}
if (readTimeout_ > 0) {
connection.setReadTimeout(readTimeout_);
}
// Make the request
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/x-thrift");
connection.setRequestProperty("Accept", "application/x-thrift");
connection.setRequestProperty("User-Agent", "Java/THttpClient");
if (customHeaders_ != null) {
for (Map.Entry<String, String> header : customHeaders_.entrySet()) {
connection.setRequestProperty(header.getKey(), header.getValue());
}
}
connection.setDoOutput(true);
connection.connect();
connection.getOutputStream().write(data);
int responseCode = connection.getResponseCode();
if (responseCode != HttpURLConnection.HTTP_OK) {
throw new TTransportException("HTTP Response code: " + responseCode);
}
// Read the responses
inputStream_ = connection.getInputStream();
} catch (IOException iox) {
throw new TTransportException(iox);
}
}
}
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