Example usage for com.google.gson.stream JsonWriter beginArray

List of usage examples for com.google.gson.stream JsonWriter beginArray

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Introduction

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

Prototype

public JsonWriter beginArray() throws IOException

Source Link

Document

Begins encoding a new array.

Usage

From source file:logInAuthentication.java

void sendRequestToDataBase(HttpServletRequest request, HttpServletResponse response) throws IOException {
    PrintWriter pw = response.getWriter();
    response.setContentType("text/json;charset=UTF-8");

    try {//from www.j a v  a  2s  . c o m
        Class.forName("com.mysql.jdbc.Driver");
        Connection con = DriverManager.getConnection("jdbc:mysql://localhost/uhms", "root", "");
        java.sql.Statement st = con.createStatement();
        StaticData.phone = request.getParameter("phone");
        StaticData.password = request.getParameter("password");
        ResultSet rs = st
                .executeQuery("SELECT gardian_password from gardian_info where id=" + StaticData.phone);
        if (rs.next()) {
            String pss = rs.getString(1);
            if (!StaticData.password.equals(pss)) {
                throw new Exception("Password did not match");
            }
        } else
            throw new Exception("No User Found by this Phone No");
        rs = st.executeQuery("SELECT *from student_info a,gardian_info b,student_gardian_relation c"
                + " WHERE a.id=c.student_id AND b.id = c.gardian_id" + " AND b.id=" + StaticData.phone);
        StaticData.resultSet = rs;
        if (!rs.next())
            throw new Exception("User Not Found On DATABASE");

        JsonWriter gsonWriter = new JsonWriter(pw);
        ResultSetMetaData metaData = rs.getMetaData();
        gsonWriter.beginObject();
        gsonWriter.name("info");
        gsonWriter.beginArray();
        rs.previous();
        while (rs.next()) {
            gsonWriter.beginObject();
            for (int indx = 1; indx <= metaData.getColumnCount(); indx++) {
                gsonWriter.name(metaData.getColumnLabel(indx));
                gsonWriter.value(rs.getString(indx));
            }
            gsonWriter.endObject();
        }
        gsonWriter.endArray();
        gsonWriter.name("status");
        gsonWriter.value("200");

        gsonWriter.endObject();
        gsonWriter.flush();
        gsonWriter.close();

    } catch (Exception ex) {
        JsonWriter gsonWriter = new JsonWriter(pw);
        gsonWriter.beginObject();
        gsonWriter.name("status");
        gsonWriter.value("400");
        gsonWriter.name("error_desc");
        gsonWriter.value(ex.getMessage());
        gsonWriter.endObject();
        gsonWriter.flush();
        gsonWriter.close();

        //  pw.println(ex);
    }
}

From source file:at.univie.sensorium.logging.JSONLogger.java

License:Open Source License

private JsonWriter getWriterForName(String sensorname) {
    JsonWriter writer = jsonMap.get(sensorname);
    if (writer == null) {
        try {/* www .j av  a2 s .  c  o m*/
            String filename = sensorname.substring(sensorname.lastIndexOf('.') + 1) + ".json";
            File extFile = new File(extDir, filename);
            if (extFile.exists()) {
                // get the first free filename.number
                int i = 0;
                boolean done = false;
                while (!done) {
                    File f = new File(extDir, filename + "." + String.valueOf(i++));
                    if (f.exists())
                        continue;
                    extFile.renameTo(f);
                    extFile = new File(extDir, filename); // reset extFile
                    // to original
                    // pointer
                    done = true;
                }
            }
            FileWriter fw = new FileWriter(extFile);
            writer = new JsonWriter(fw);
            writer.beginArray();
            jsonMap.put(sensorname, writer);
            writerMap.put(sensorname, fw);
            files.add(extFile);
        } catch (FileNotFoundException e) {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw);
            e.printStackTrace(pw);
            Log.d(SensorRegistry.TAG, sw.toString());
            jsonMap.remove(sensorname);
            writerMap.remove(sensorname);
        } catch (IOException e) {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw);
            e.printStackTrace(pw);
            Log.d(SensorRegistry.TAG, sw.toString());
        }
    }

    return writer;
}

From source file:at.univie.sensorium.logging.JSONLogger.java

License:Open Source License

private void writeObject(AbstractSensor sensor) {
    if (externalMediaWriteable()) {
        JsonWriter jw = getWriterForName(sensor.getClass().getName());
        List<SensorValue> valuelist = sensor.getSensorValues();
        if (jw != null) {
            try {
                jw.beginObject();// w ww  .  j a  va 2 s .  c  om
                jw.name("privacy-level").value(sensor.getPrivacylevel().name());
                for (SensorValue value : valuelist) {
                    if (value.isNested()) {
                        jw.name(value.getType().getName());
                        jw.beginArray();
                        List<NestedSensorValue> nested = (List<NestedSensorValue>) value.getValue();
                        for (NestedSensorValue nsv : nested) {
                            List<SensorValue> values = nsv.getInnerSensorValues();
                            jw.beginObject();
                            for (SensorValue nestedvalue : values) {
                                SensorValue privatized = Privacy.anonymize(nestedvalue,
                                        sensor.getPrivacylevel());
                                jw.name(privatized.getType().getName())
                                        .value(privatized.getValueRepresentation());
                            }
                            jw.endObject();

                        }
                        jw.endArray();
                    } else {
                        SensorValue privatized = Privacy.anonymize(value, sensor.getPrivacylevel());
                        jw.name(privatized.getType().getName()).value(privatized.getValueRepresentation());
                    }
                }
                jw.endObject();
                writerMap.get(sensor.getClass().getName()).flush();
            } catch (IOException e) {
                StringWriter sw = new StringWriter();
                PrintWriter pw = new PrintWriter(sw);
                e.printStackTrace(pw);
                Log.d(SensorRegistry.TAG, sw.toString());
            }
        } else {
            Log.d(SensorRegistry.TAG, "Can't get write access to log file, skipping");
        }
    }
}

From source file:be.iminds.iot.dianne.coordinator.util.DianneCoordinatorWriter.java

License:Open Source License

public static void writeObject(JsonWriter writer, Object o) throws Exception {
    if (o == null) {
        writer.value("null");
    } else if (o instanceof LearnResult) {
        writeLearnResult(writer, (LearnResult) o, 0);
    } else if (o instanceof EvaluationResult) {
        writeEvaluationResult(writer, (EvaluationResult) o);
    } else if (o instanceof AgentResult) {
        writeAgentResult(writer, (AgentResult) o, 0);
    } else if (o.getClass().equals(String.class) || o.getClass().isEnum() || o.getClass().equals(UUID.class)) {
        writer.value(o.toString());/*from   w w w .  j a v  a2 s  . co m*/
    } else if (o instanceof List) {
        List<?> l = (List<?>) o;
        writer.beginArray();
        for (Object ll : l) {
            writeObject(writer, ll);
        }
        writer.endArray();
    } else if (o instanceof Map) {
        Map<?, ?> m = (Map<?, ?>) o;
        writer.beginObject();
        for (Object k : m.keySet()) {
            writer.name(k.toString());
            writeObject(writer, m.get(k));
        }
        writer.endObject();
    } else if (o.getClass().isArray()) {
        int length = Array.getLength(o);
        writer.beginArray();
        for (int i = 0; i < length; i++) {
            writeObject(writer, Array.get(o, i));
        }
        writer.endArray();
    } else {
        writer.beginObject();
        writeFields(writer, o);
        writer.endObject();
    }
}

From source file:be.iminds.iot.dianne.coordinator.util.DianneCoordinatorWriter.java

License:Open Source License

public static void writeLearnResult(JsonWriter writer, LearnResult result, int limit) throws Exception {
    writer.beginArray();
    // merge progress and validation in single object
    // TODO for now select one learners minibatch loss as progress?
    if (result.progress.size() > 0) {
        List<LearnProgress> select = result.progress.values().iterator().next();
        int step = 1000;
        if (limit > 0 && select.size() / step > limit) {
            step = select.size() / step * limit + 1;
        }//w  w  w.  j ava  2  s. co  m
        for (int i = 0; i < select.size(); i += step) {
            LearnProgress p = select.get(i);
            Evaluation val = result.validations.get(p.iteration);

            writer.beginObject();
            writeFields(writer, p);
            if (val != null) {
                writer.name("validationLoss");
                writer.value(val.metric());
            }
            writer.endObject();
        }
    }
    writer.endArray();
}

From source file:be.iminds.iot.dianne.coordinator.util.DianneCoordinatorWriter.java

License:Open Source License

public static void writeEvaluationResult(JsonWriter writer, EvaluationResult result) throws Exception {
    writer.beginArray();
    for (Evaluation eval : result.evaluations.values()) {
        writer.beginObject();/*w  w  w .  j ava  2s.  c o  m*/
        if (eval == null) {
            // write nothing?
        } else if (eval instanceof EvaluationProgress) {
            writer.name("processed");
            writer.value(((EvaluationProgress) eval).processed());
            writer.name("total");
            writer.value(((EvaluationProgress) eval).size());
            writer.name("metric");
            writer.value(((EvaluationProgress) eval).metric());
        } else {
            writer.name("evaluationTime");
            writer.value(eval.time());

            if (eval instanceof ErrorEvaluation) {
                ErrorEvaluation eeval = (ErrorEvaluation) eval;

                writer.name("error");
                writer.value(new Float(eeval.error()));

                writer.name("forwardTime");
                writer.value(new Float(eeval.forwardTime()));

                // write all outputs
                if (eeval.outputs() != null) {
                    writer.name("outputs");
                    writer.beginArray();
                    for (Tensor t : eeval.outputs()) {
                        writer.beginArray();
                        for (float f : t.get()) {
                            writer.value(new Float(f));
                        }
                        writer.endArray();
                    }
                    writer.endArray();
                }
            }

            if (eval instanceof ClassificationEvaluation) {
                ClassificationEvaluation ceval = (ClassificationEvaluation) eval;
                // write accuracy
                writer.name("accuracy");
                writer.value(new Float(ceval.accuracy()));

                writer.name("top3");
                writer.value(new Float(ceval.topNaccuracy(3)));

                writer.name("top5");
                writer.value(new Float(ceval.topNaccuracy(5)));

                // write confusion matrix
                writer.name("confusionMatrix");
                writer.beginArray();
                Tensor confusionMatrix = ceval.confusionMatrix();
                for (int i = 0; i < confusionMatrix.size(0); i++) {
                    writer.beginArray();
                    for (int j = 0; j < confusionMatrix.size(1); j++) {
                        writer.value(new Float(confusionMatrix.get(i, j)));
                    }
                    writer.endArray();
                }
                writer.endArray();
            }
        }
        writer.endObject();
    }
    writer.endArray();
}

From source file:be.iminds.iot.dianne.coordinator.util.DianneCoordinatorWriter.java

License:Open Source License

public static void writeAgentResult(JsonWriter writer, AgentResult result, int limit) throws Exception {
    writer.beginArray();
    for (List<AgentProgress> pp : result.progress.values()) {
        writer.beginArray();/*from  w  w w  . ja  va2  s  .  c o m*/
        int step = 1;
        if (limit > 0 && pp.size() > limit) {
            step = pp.size() / limit + 1;
        }
        for (int i = 0; i < pp.size(); i += step) {
            AgentProgress progress = pp.get(i);
            writer.beginObject();
            writeFields(writer, progress);
            writer.endObject();
        }
        writer.endArray();
    }
    writer.endArray();
}

From source file:cc.kave.commons.utils.json.legacy.UsageTypeAdapter.java

License:Open Source License

private void writeQuery(JsonWriter out, Usage usage) throws IOException {
    out.beginObject();//w w w  .j  a v a 2 s . c o  m

    if (usage.getType() != null) {
        out.name(TYPE).value(usage.getType().toString());
    }
    if (usage.getClassContext() != null) {
        out.name(CLASS_CTX).value(usage.getClassContext().toString());
    }
    if (usage.getMethodContext() != null) {
        out.name(METHOD_CTX).value(usage.getMethodContext().toString());
    }
    if (usage.getDefinitionSite() != null) {
        out.name(DEFINITION);
        writeDefinition(out, usage.getDefinitionSite());
    }

    if (usage.getAllCallsites() != null) {
        out.name(SITES);
        out.beginArray();
        for (CallSite m : usage.getAllCallsites()) {
            writeCallSite(out, m);
        }
        out.endArray();
    }

    out.endObject();
}

From source file:cc.recommenders.utils.gson.UsageTypeAdapter.java

License:Open Source License

@Override
public void write(JsonWriter out, Usage usage) throws IOException {
    out.beginObject();/*from  w w w.j a va2s . c  o  m*/

    if (usage.getType() != null) {
        out.name(TYPE).value(usage.getType().toString());
    }
    if (usage.getClassContext() != null) {
        out.name(CLASS_CTX).value(usage.getClassContext().toString());
    }
    if (usage.getMethodContext() != null) {
        out.name(METHOD_CTX).value(usage.getMethodContext().toString());
    }
    if (usage.getDefinitionSite() != null) {
        out.name(DEFINITION);
        writeDefinition(out, usage.getDefinitionSite());
    }

    if (usage.getAllCallsites() != null) {
        out.name(SITES);
        out.beginArray();
        for (CallSite m : usage.getAllCallsites()) {
            writeCallSite(out, m);
        }
        out.endArray();
    }

    out.endObject();
}

From source file:classifiers.DummyClassifier.java

License:Apache License

public void parseStreamAndClassify(String jsonFile, String resultsFile) throws IOException {

    String journalName;//  ww w .j  av  a 2  s . c  o  m
    int count = 0;
    int abstract_count = 0;

    try {
        JsonReader reader = new JsonReader(new InputStreamReader(new FileInputStream(jsonFile)));
        JsonWriter writer = new JsonWriter(new OutputStreamWriter(new FileOutputStream(resultsFile), "UTF-8"));
        writer.setIndent("    ");

        //reader.setLenient(true);
        reader.beginArray();
        writer.beginArray();
        while (reader.hasNext()) {

            reader.beginObject();
            writer.beginObject();
            while (reader.hasNext()) {
                String name = reader.nextName();

                if (name.equals("abstract")) {
                    abstract_count++;
                    reader.skipValue();

                } else if (name.equals("pmid")) {
                    String pmid = reader.nextString();
                    writer.name("labels");
                    writeLabels(writer);
                    writer.name("pmid").value(pmid);
                } else if (name.equals("title")) {
                    reader.skipValue();
                } else {
                    System.out.println(name);
                    reader.skipValue();
                }
            }
            reader.endObject();
            writer.endObject();
        }
        reader.endArray();
        writer.endArray();

        System.out.println("Abstracts: " + abstract_count);

        writer.close();
    } catch (FileNotFoundException ex) {

    }
}