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extensions/net.sf.basedb.otp/trunk/src/net/sf/basedb/otp/JsonUtil.java

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Rev	Date	Author	Line
4851	14 Jun 18	nicklas	1	package net.sf.basedb.otp;
4851	14 Jun 18	nicklas	2
4851	14 Jun 18	nicklas	3	import java.io.BufferedReader;
4851	14 Jun 18	nicklas	4	import java.io.IOException;
4851	14 Jun 18	nicklas	5	import java.io.InputStreamReader;
4851	14 Jun 18	nicklas	6	import java.io.Reader;
4851	14 Jun 18	nicklas	7	import java.nio.charset.Charset;
4851	14 Jun 18	nicklas	8
4851	14 Jun 18	nicklas	9	import javax.servlet.http.HttpServletRequest;
4851	14 Jun 18	nicklas	10	import javax.servlet.http.HttpServletResponse;
4851	14 Jun 18	nicklas	11
4851	14 Jun 18	nicklas	12
4851	14 Jun 18	nicklas	13	import org.json.simple.JSONObject;
4851	14 Jun 18	nicklas	14	import org.json.simple.parser.JSONParser;
4851	14 Jun 18	nicklas	15	import org.json.simple.parser.ParseException;
4851	14 Jun 18	nicklas	16
4851	14 Jun 18	nicklas	17	/**
4851	14 Jun 18	nicklas	18	Utility functions for JSON.
4851	14 Jun 18	nicklas	19	@since 1.0
4851	14 Jun 18	nicklas	20	*/
4851	14 Jun 18	nicklas	21	public class JsonUtil
4851	14 Jun 18	nicklas	22	{
4851	14 Jun 18	nicklas	23	/**
4851	14 Jun 18	nicklas	24	Set proper response headers for returning a JSON response.
4851	14 Jun 18	nicklas	25	This sets the content type to: application/json;charset=UTF8
4851	14 Jun 18	nicklas	26	and disable caching of the responses.
4851	14 Jun 18	nicklas	27	*/
4851	14 Jun 18	nicklas	28	public static void setJsonResponseHeaders(HttpServletResponse resp)
4851	14 Jun 18	nicklas	29	{
4851	14 Jun 18	nicklas	30	resp.setContentType("application/json");
4851	14 Jun 18	nicklas	31	resp.setCharacterEncoding("UTF-8");
4851	14 Jun 18	nicklas	32	resp.setHeader("Cache-Control", "no-cache, max-age=0");
4851	14 Jun 18	nicklas	33	}
4851	14 Jun 18	nicklas	34
4851	14 Jun 18	nicklas	35	/**
4851	14 Jun 18	nicklas	36	Parse the request as JSON data.
4851	14 Jun 18	nicklas	37	*/
4851	14 Jun 18	nicklas	38	public static JSONObject parseRequest(HttpServletRequest request)
4851	14 Jun 18	nicklas	39	throws IOException, ParseException
4851	14 Jun 18	nicklas	40	{
4851	14 Jun 18	nicklas	41	Reader reader = new BufferedReader(new InputStreamReader(request.getInputStream(), Charset.forName("UTF-8")));
4851	14 Jun 18	nicklas	42	JSONObject json = (JSONObject)new JSONParser().parse(reader);
4851	14 Jun 18	nicklas	43	return json;
4851	14 Jun 18	nicklas	44	}
4851	14 Jun 18	nicklas	45
4851	14 Jun 18	nicklas	46	}