Example usage for com.google.gson.stream JsonReader JsonReader

Introduction

In this page you can find the example usage for com.google.gson.stream JsonReader JsonReader.

Prototype

public JsonReader(Reader in)

Source Link

Document

Creates a new instance that reads a JSON-encoded stream from in .

Usage

From source file:ed.cracken.code.servlets.PushHandler.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./*from   w w w .  ja va2 s .  com*/
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("application/json");
    BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream(), "UTF-8"));
    String json = "";
    StringBuilder sb = new StringBuilder();
    while ((json = br.readLine()) != null) {
        sb.append(json);
    }
    br.close();

    System.out.println(">> " + sb.toString());
    JsonReader reader = new JsonReader(new StringReader(sb.toString()));
    reader.setLenient(true);
    Persona persona = new Gson().fromJson(reader, Persona.class);
    IDsManager idsManager;
    if ((idsManager = (IDsManager) request.getServletContext().getAttribute("idsmanager")) == null) {
        idsManager = new IDsManager();
        request.getServletContext().setAttribute("idsmanager", idsManager);
    }
    idsManager.getIds().put(persona.getSession(), persona);

    response.setStatus(HttpServletResponse.SC_ACCEPTED);

}

From source file:edu.berkeley.ground.plugins.hive.GroundReadWriteEdgeResource.java

License:Apache License

private EdgeVersion getEdgeVersion(HttpMethod method)
        throws JsonParseException, JsonMappingException, HttpException, IOException {
    if (PluginUtil.client.executeMethod(method) == HttpURLConnection.HTTP_OK) {
        // create edge version from response of POST request
        String response = method.getResponseBodyAsString();
        JsonReader reader = new JsonReader(new StringReader(response));
        return PluginUtil.fromJson(reader, EdgeVersion.class);
    }//  ww  w. j  av a  2 s  . c o  m
    return null;
}

From source file:edu.berkeley.ground.plugins.hive.GroundReadWriteEdgeResource.java

License:Apache License

private Edge constructEdge(String response) throws GroundException {
    JsonReader reader = new JsonReader(new StringReader(response));
    return PluginUtil.fromJson(reader, Edge.class);
}

From source file:edu.berkeley.ground.plugins.hive.GroundReadWriteNodeResource.java

License:Apache License

private Node constructNode(String response) throws GroundException {
    if (response == null) {
        return null;
    }/*from   w w w  . j  a v a 2  s  . co m*/
    JsonReader reader = new JsonReader(new StringReader(response));
    return PluginUtil.fromJson(reader, Node.class);
}

From source file:edu.berkeley.ground.plugins.hive.GroundReadWriteNodeResource.java

License:Apache License

private NodeVersion constructNodeVersion(String response) throws GroundException {
    if (response == null) {
        return null;
    }/*from   w  w  w  .  j  ava 2  s  .  c  o  m*/
    JsonReader reader = new JsonReader(new StringReader(response));
    return PluginUtil.fromJson(reader, NodeVersion.class);
}

From source file:edu.berkeley.ground.plugins.hive.GroundReadWriteStructureResource.java

License:Apache License

private Structure constructStructure(String response) throws IOException {
    JsonReader reader = new JsonReader(new StringReader(response));
    return PluginUtil.fromJson(reader, Structure.class);
}

From source file:edu.berkeley.ground.plugins.hive.GroundReadWriteStructureResource.java

License:Apache License

private StructureVersion constructStructureVersion(String response) throws IOException {
    JsonReader reader = new JsonReader(new StringReader(response));
    return PluginUtil.fromJson(reader, StructureVersion.class);
}

From source file:edu.education.ucsb.muster.MusterServlet.java

License:BSD License

private MusterConfiguration loadConfiguration() {

    Gson gson = new Gson();
    JsonReader reader = null;/*ww w  .  j  a  va 2 s.c o m*/
    MusterConfiguration loadedConf = null;

    try {
        reader = new JsonReader(
                new InputStreamReader(getServletContext().getResourceAsStream(confPath), "UTF-8"));
    } catch (UnsupportedEncodingException e) {
        addException(e, "Unsupported encoding");
    } catch (NullPointerException e) {
        addException(e, "Couldn't open config file `" + confPath + "`");
    }

    loadedConf = gson.fromJson(reader, MusterConfiguration.class);
    loadedConf.lastLoaded = System.currentTimeMillis();
    return loadedConf;
}

From source file:edu.isi.karma.modeling.alignment.GraphUtil.java

License:Apache License

public static DirectedWeightedMultigraph<Node, DefaultLink> importJson(String filename) throws IOException {

    File file = new File(filename);
    if (!file.exists()) {
        logger.error("cannot open the file " + filename);
    }/*from www . ja va2 s .c  o m*/

    FileInputStream in = new FileInputStream(file);
    JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
    try {
        return readGraph(reader);
    } catch (Exception e) {
        logger.error("error in reading the model from json!");
        e.printStackTrace();
        return null;
    } finally {
        reader.close();
    }
}

From source file:edu.isi.karma.modeling.alignment.SemanticModel.java

License:Apache License

public static SemanticModel readJson(String filename) throws IOException {

    File file = new File(filename);
    if (!file.exists()) {
        logger.error("cannot open the file " + filename);
    }/*from   w  w w  . j a  va  2  s. c o  m*/

    FileInputStream in = new FileInputStream(file);
    JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
    try {
        return readModel(reader);
    } catch (Exception e) {
        logger.error("error in reading the model from json!");
        e.printStackTrace();
        return null;
    } finally {
        reader.close();
    }
}