mirror of
https://github.com/servalproject/serval-dna.git
synced 2025-01-08 22:12:50 +00:00
82 lines
3.1 KiB
Java
82 lines
3.1 KiB
Java
/**
|
|
* Copyright (C) 2014 Serval Project Inc.
|
|
*
|
|
* This file is part of Serval Software (http://www.servalproject.org)
|
|
*
|
|
* Serval Software is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This source code is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this source code; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
package org.servalproject.servaldna.rhizome;
|
|
|
|
import java.io.IOException;
|
|
import java.io.InputStreamReader;
|
|
import java.net.HttpURLConnection;
|
|
import org.servalproject.servaldna.ServalDInterfaceException;
|
|
import org.servalproject.json.JSONTokeniser;
|
|
import org.servalproject.json.JSONInputException;
|
|
|
|
public class RhizomeCommon
|
|
{
|
|
protected static JSONTokeniser receiveRestfulResponse(HttpURLConnection conn, int expected_response_code) throws IOException, ServalDInterfaceException
|
|
{
|
|
int[] expected_response_codes = { expected_response_code };
|
|
return receiveRestfulResponse(conn, expected_response_codes);
|
|
}
|
|
|
|
protected static JSONTokeniser receiveRestfulResponse(HttpURLConnection conn, int[] expected_response_codes) throws IOException, ServalDInterfaceException
|
|
{
|
|
if (!conn.getContentType().equals("application/json"))
|
|
throw new ServalDInterfaceException("unexpected HTTP Content-Type: " + conn.getContentType());
|
|
if (conn.getResponseCode() == HttpURLConnection.HTTP_FORBIDDEN) {
|
|
JSONTokeniser json = new JSONTokeniser(new InputStreamReader(conn.getErrorStream(), "US-ASCII"));
|
|
Status status = decodeRestfulStatus(json);
|
|
throw new ServalDInterfaceException("unexpected Rhizome failure, \"" + status.message + "\"");
|
|
}
|
|
for (int code: expected_response_codes) {
|
|
if (conn.getResponseCode() == code) {
|
|
JSONTokeniser json = new JSONTokeniser(new InputStreamReader(conn.getInputStream(), "US-ASCII"));
|
|
return json;
|
|
}
|
|
}
|
|
throw new ServalDInterfaceException("unexpected HTTP response code: " + conn.getResponseCode());
|
|
}
|
|
|
|
private static class Status {
|
|
public String message;
|
|
}
|
|
|
|
protected static Status decodeRestfulStatus(JSONTokeniser json) throws IOException, ServalDInterfaceException
|
|
{
|
|
try {
|
|
Status status = new Status();
|
|
json.consume(JSONTokeniser.Token.START_OBJECT);
|
|
json.consume("http_status_code");
|
|
json.consume(JSONTokeniser.Token.COLON);
|
|
json.consume(Integer.class);
|
|
json.consume(JSONTokeniser.Token.COMMA);
|
|
status.message = json.consume("http_status_message");
|
|
json.consume(JSONTokeniser.Token.COLON);
|
|
String message = json.consume(String.class);
|
|
json.consume(JSONTokeniser.Token.END_OBJECT);
|
|
json.consume(JSONTokeniser.Token.EOF);
|
|
return status;
|
|
}
|
|
catch (JSONInputException e) {
|
|
throw new ServalDInterfaceException("malformed JSON status response", e);
|
|
}
|
|
}
|
|
|
|
}
|