package org.apache.thrift.server;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.thrift.TException;
import org.apache.thrift.TProcessor;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.protocol.TProtocolFactory;
import org.apache.thrift.transport.TIOStreamTransport;
import org.apache.thrift.transport.TTransport;
/**
* Servlet implementation class ThriftServer
*/
public class TServlet extends HttpServlet {
private final TProcessor processor;
private final TProtocolFactory inProtocolFactory;
private final TProtocolFactory outProtocolFactory;
private final Collection<Map.Entry<String, String>> customHeaders;
/**
* @see HttpServlet#HttpServlet()
*/
public TServlet(TProcessor processor, TProtocolFactory inProtocolFactory,
TProtocolFactory outProtocolFactory) {
super();
this.processor = processor;
this.inProtocolFactory = inProtocolFactory;
this.outProtocolFactory = outProtocolFactory;
this.customHeaders = new ArrayList<Map.Entry<String, String>>();
}
/**
* @see HttpServlet#HttpServlet()
*/
public TServlet(TProcessor processor, TProtocolFactory protocolFactory) {
this(processor, protocolFactory, protocolFactory);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
* response)
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
TTransport inTransport = null;
TTransport outTransport = null;
try {
response.setContentType("application/x-thrift");
if (null != this.customHeaders) {
for (Map.Entry<String, String> header : this.customHeaders) {
response.addHeader(header.getKey(), header.getValue());
}
}
InputStream in = request.getInputStream();
OutputStream out = response.getOutputStream();
TTransport transport = new TIOStreamTransport(in, out);
inTransport = transport;
outTransport = transport;
TProtocol inProtocol = inProtocolFactory.getProtocol(inTransport);
TProtocol outProtocol = outProtocolFactory.getProtocol(outTransport);
processor.process(inProtocol, outProtocol);
out.flush();
} catch (TException te) {
throw new ServletException(te);
}
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
public void addCustomHeader(final String key, final String value) {
this.customHeaders.add(new Map.Entry<String, String>() {
public String getKey() {
return key;
}
public String getValue() {
return value;
}
public String setValue(String value) {
return null;
}
});
}
public void setCustomHeaders(Collection<Map.Entry<String, String>> headers) {
this.customHeaders.clear();
this.customHeaders.addAll(headers);
}
}