serval-dna/java/org/servalproject/servaldna/meshms/MeshMSCommon.java
2014-06-19 10:37:33 +09:30

73 lines
3.0 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.meshms;
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;
class MeshMSCommon
{
protected static JSONTokeniser connectMeshMSRestful(HttpURLConnection conn) throws IOException, ServalDInterfaceException, MeshMSException
{
conn.connect();
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"));
try {
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);
json.consume("http_status_message");
json.consume(JSONTokeniser.Token.COLON);
String message = json.consume(String.class);
json.consume(JSONTokeniser.Token.COMMA);
json.consume("meshms_status_code");
json.consume(JSONTokeniser.Token.COLON);
int meshms_status = json.consume(Integer.class);
json.consume(JSONTokeniser.Token.END_OBJECT);
json.consume(JSONTokeniser.Token.EOF);
switch (meshms_status) {
case 2:
throw new MeshMSUnknownIdentityException(conn.getURL());
case 3:
throw new MeshMSProtocolFaultException(conn.getURL());
}
throw new ServalDInterfaceException("unexpected MeshMS status = " + meshms_status + ", \"" + message + "\"");
}
catch (JSONInputException e) {
throw new ServalDInterfaceException("malformed response body for HTTP status code " + conn.getResponseCode(), e);
}
}
if (conn.getResponseCode() != HttpURLConnection.HTTP_OK)
throw new ServalDInterfaceException("unexpected HTTP response code: " + conn.getResponseCode());
JSONTokeniser json = new JSONTokeniser(new InputStreamReader(conn.getInputStream(), "US-ASCII"));
return json;
}
}