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RequestProcessor.java
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70 lines (60 loc) · 2.35 KB
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package core;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import java.util.regex.Pattern;
import static core.HttpStatusCode.INTERNAL_SERVER_ERROR;
import static core.HttpStatusCode.NOT_FOUND;
public class RequestProcessor implements Runnable {
private final Socket clientSocket;
private Configuration configuration;
private Map<Pattern, Handler> handlers;
RequestProcessor(Socket clientSocket, Configuration configuration, Map<Pattern, Handler> handlers) {
this.clientSocket = clientSocket;
this.configuration = configuration;
this.handlers = handlers;
}
@Override
public void run() {
try (OutputStream out = clientSocket.getOutputStream()) {
try (InputStream in = clientSocket.getInputStream()) {
process(out, in);
} finally {
clientSocket.close();
}
} catch (Exception e) {
System.out.println("Exception caught:");
System.out.println(e.getMessage());
}
}
void process(OutputStream out, InputStream in) throws IOException {
Request request = new Request();
try {
RequestParser parser = new RequestParser(configuration);
request = parser.setFields(in);
Response response = new Response(request);
executeHandlers(request, response);
if (response.responseStatusCode == null)
response.generateStandardResponse(NOT_FOUND);
out.write(response.generateMessage().getBytes(StandardCharsets.ISO_8859_1));
out.flush();
} catch (Exception e) {
respondWithError(out, request, INTERNAL_SERVER_ERROR);
}
}
void executeHandlers(Request request, Response response) throws InstantiationException, IllegalAccessException, java.lang.reflect.InvocationTargetException, NoSuchMethodException {
if (request.requestURI != null)
for (Map.Entry<Pattern, Handler> entry : handlers.entrySet())
if (entry.getKey().matcher(request.requestURI.getPath()).matches())
entry.getValue().handle(request, response);
}
void respondWithError(OutputStream out, Request request, HttpStatusCode code) throws IOException {
Response response = new Response(request);
response.generateStandardResponse(code);
out.write(response.generateMessage().getBytes(StandardCharsets.ISO_8859_1));
out.flush();
}
}