Example usage for com.google.gson.stream JsonToken BEGIN_OBJECT

Introduction

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

Prototype

JsonToken BEGIN_OBJECT

To view the source code for com.google.gson.stream JsonToken BEGIN_OBJECT.

Click Source Link

Document

The opening of a JSON object.

Usage

From source file:org.arl.fjage.remote.GenericValueAdapterFactory.java

License:BSD License

public <T> TypeAdapter<T> create(final Gson gson, TypeToken<T> type) {
    final Class<T> rawType = (Class<T>) type.getRawType();
    if (!rawType.equals(GenericValue.class))
        return null;
    final GenericValueAdapterFactory parent = this;
    return new TypeAdapter<T>() {

        @Override//from  w  ww  . j a  v  a  2  s  . c o  m
        public void write(JsonWriter out, T value) throws IOException {
            if (value == null) {
                out.nullValue();
                return;
            }
            Class type = ((GenericValue) value).getType();
            if (type == null) {
                out.nullValue();
                return;
            }
            if (Number.class.isAssignableFrom(type))
                out.value((Number) ((GenericValue) value).getValue());
            else if (type.equals(String.class))
                out.value((String) ((GenericValue) value).getValue());
            else if (type.equals(Boolean.class))
                out.value((Boolean) ((GenericValue) value).getValue());
            else {
                out.beginObject();
                out.name("clazz").value(type.getName());
                out.name("data");
                TypeAdapter delegate = gson.getAdapter(TypeToken.get(type));
                Object v = ((GenericValue) value).getValue();
                delegate.write(out, v);
                out.endObject();
            }
        }

        @Override
        public T read(JsonReader in) throws IOException {
            JsonToken tok = in.peek();
            if (tok == JsonToken.NULL) {
                in.nextNull();
                return null;
            }
            if (tok == JsonToken.NUMBER) {
                String s = in.nextString();
                try {
                    if (s.contains("."))
                        return (T) new GenericValue(Double.parseDouble(s));
                    else
                        return (T) new GenericValue(Long.parseLong(s));
                } catch (NumberFormatException ex) {
                    return (T) new GenericValue(null);
                }
            }
            if (tok == JsonToken.STRING)
                return (T) new GenericValue(in.nextString());
            if (tok == JsonToken.BOOLEAN)
                return (T) new GenericValue(in.nextBoolean());
            if (tok != JsonToken.BEGIN_OBJECT)
                return null;
            TypeToken tt = null;
            GenericValue rv = null;
            in.beginObject();
            while (in.hasNext()) {
                String name = in.nextName();
                if (name.equals("clazz")) {
                    try {
                        Class<?> cls = Class.forName(in.nextString());
                        tt = TypeToken.get(cls);
                    } catch (Exception ex) {
                        // do nothing
                    }
                } else if (name.equals("data") && tt != null) {
                    TypeAdapter delegate = gson.getAdapter(tt);
                    rv = new GenericValue(delegate.read(in));
                } else
                    in.skipValue();
            }
            in.endObject();
            return (T) rv;
        }

    };
}

---

From source file:org.bimserver.emf.SharedJsonDeserializer.java

License:Open Source License

@SuppressWarnings("rawtypes")
public IfcModelInterface read(InputStream in, IfcModelInterface model, boolean checkWaitingList)
        throws DeserializeException {
    if (model.getPackageMetaData().getSchemaDefinition() == null) {
        throw new DeserializeException("No SchemaDefinition available");
    }/*  w  w  w  .  j a  v a2s  .c  o m*/
    WaitingList<Long> waitingList = new WaitingList<Long>();
    final boolean log = false;
    if (log) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        try {
            IOUtils.copy(in, baos);
            File file = new File("debug.json");
            System.out.println(file.getAbsolutePath());
            FileUtils.writeByteArrayToFile(file, baos.toByteArray());
        } catch (IOException e) {
            e.printStackTrace();
        }
        in = new ByteArrayInputStream(baos.toByteArray());
    }
    JsonReader jsonReader = new JsonReader(new InputStreamReader(in, Charsets.UTF_8));
    int nrObjects = 0;
    try {
        JsonToken peek = jsonReader.peek();
        if (peek != null && peek == JsonToken.BEGIN_OBJECT) {
            jsonReader.beginObject();
            peek = jsonReader.peek();
            while (peek == JsonToken.NAME) {
                String nextName = jsonReader.nextName();
                if (nextName.equals("objects")) {
                    jsonReader.beginArray();
                    while (jsonReader.hasNext()) {
                        nrObjects++;
                        processObject(model, waitingList, jsonReader, null);
                    }
                    jsonReader.endArray();
                } else if (nextName.equals("header")) {
                    IfcHeader ifcHeader = (IfcHeader) processObject(model, waitingList, jsonReader,
                            StorePackage.eINSTANCE.getIfcHeader());
                    model.getModelMetaData().setIfcHeader(ifcHeader);
                }
                peek = jsonReader.peek();
            }
            jsonReader.endObject();
        }
    } catch (IOException e) {
        LOGGER.error("", e);
    } catch (IfcModelInterfaceException e) {
        LOGGER.error("", e);
    } finally {
        LOGGER.info("# Objects: " + nrObjects);
        try {
            jsonReader.close();
        } catch (IOException e) {
            LOGGER.error("", e);
        }
    }
    boolean checkUnique = false;
    if (checkUnique) {
        for (IdEObject idEObject : model.getValues()) {
            for (EStructuralFeature eStructuralFeature : idEObject.eClass().getEAllStructuralFeatures()) {
                Object value = idEObject.eGet(eStructuralFeature);
                if (eStructuralFeature instanceof EReference) {
                    if (eStructuralFeature.isMany()) {
                        List list = (List) value;
                        if (eStructuralFeature.isUnique()) {
                            Set<Object> t = new HashSet<>();
                            for (Object v : list) {
                                if (t.contains(v)) {
                                    //                           LOGGER.error("NOT UNIQUE " + idEObject.eClass().getName() + "." + eStructuralFeature.getName());
                                }
                                t.add(v);
                            }
                        }
                    }
                }
            }
        }
    }
    if (checkWaitingList && waitingList.size() > 0) {
        try {
            waitingList.dumpIfNotEmpty();
        } catch (BimServerClientException e) {
            e.printStackTrace();
        }
        throw new DeserializeException("Waitinglist should be empty (" + waitingList.size() + ")");
    }
    return model;
}

---

From source file:org.dice_research.topicmodeling.io.json.AbstractDocumentJsonReader.java

License:Open Source License

public Document readDocument(JsonReader reader) {
    try {//from  w  ww  .ja v  a 2  s .  co m
        // Check that an object begins
        if ((!reader.hasNext()) && (!JsonToken.BEGIN_OBJECT.equals(reader.peek()))) {
            return null;
        }
    } catch (IOException e) {
        LOGGER.warn("Got an IOException when trying to check whether a JSON object begins. Moving on.", e);
    }
    try {
        return gson.fromJson(reader, Document.class);
    } catch (Exception e) {
        LOGGER.error("Couldn't read document from JSON. Returning null.", e);
        return null;
    }
}

---

From source file:org.eclipse.skalli.core.rest.JSONRestReader.java

License:Open Source License

@Override
public boolean isValue() throws IOException {
    if (state == STATE_FINAL) {
        return false;
    }/*from  ww  w.j a va  2  s .  co  m*/
    if (isKey("value")) { //$NON-NLS-1$
        return true;
    }
    JsonToken next = json.peek();
    return lookAhead == null && (next == JsonToken.STRING || next == JsonToken.NUMBER
            || next == JsonToken.BOOLEAN || next == JsonToken.BEGIN_ARRAY || next == JsonToken.BEGIN_OBJECT
            || next == JsonToken.NULL);
}

---

From source file:org.eclipse.skalli.core.rest.JSONRestReader.java

License:Open Source License

@Override
public boolean isObject() throws IOException {
    if (state == STATE_FINAL) {
        return false;
    }/*from  w ww .  j a  v  a2 s . co  m*/
    return json.peek() == JsonToken.BEGIN_OBJECT;
}

---

From source file:org.geotools.data.arcgisrest.GeoJSONParser.java

License:Open Source License

/**
 * Checks whether there is another feature to read
 * //ww w.j a va 2s  . c om
 * @return true if there is another featuere to read, false otherwise
 */
@Override
public boolean hasNext() {

    try {
        if (this.inFeatureCollection == true && this.reader.peek() == JsonToken.BEGIN_OBJECT) {
            return true;
        }
    } catch (IOException e) {
        LOGGER.log(Level.SEVERE, e.getMessage(), e);
    }

    return false;
}

---

From source file:org.immutables.gson.stream.JsonParserReader.java

License:Apache License

private static JsonToken toGsonToken(com.fasterxml.jackson.core.JsonToken token) {
    switch (token) {
    case START_ARRAY:
        return JsonToken.BEGIN_ARRAY;
    case END_ARRAY:
        return JsonToken.END_ARRAY;
    case START_OBJECT:
        return JsonToken.BEGIN_OBJECT;
    case END_OBJECT:
        return JsonToken.END_OBJECT;
    case FIELD_NAME:
        return JsonToken.NAME;
    case VALUE_FALSE:
        return JsonToken.BOOLEAN;
    case VALUE_TRUE:
        return JsonToken.BOOLEAN;
    case VALUE_NULL:
        return JsonToken.NULL;
    case VALUE_NUMBER_INT:
        return JsonToken.NUMBER;
    case VALUE_NUMBER_FLOAT:
        return JsonToken.NUMBER;
    case VALUE_STRING:
        return JsonToken.STRING;
    default: // Not semantically equivalent
        return JsonToken.NULL;
    }//  w  ww .  j av a  2  s . c o m
}

---

From source file:org.immutables.mongo.bson4gson.BsonReader.java

License:Apache License

private static JsonToken toGsonToken(BsonType type) {
    switch (type) {
    case END_OF_DOCUMENT:
        return JsonToken.END_DOCUMENT;
    case DOCUMENT:
        return JsonToken.BEGIN_OBJECT;
    case ARRAY:/*from  ww  w .ja  va 2s .c  o m*/
        return JsonToken.BEGIN_ARRAY;
    case BOOLEAN:
        return JsonToken.BOOLEAN;
    case STRING:
    case SYMBOL:
    case OBJECT_ID:
    case BINARY:
    case REGULAR_EXPRESSION:
        return JsonToken.STRING;
    case DATE_TIME:
    case DOUBLE:
    case INT32:
    case INT64:
    case TIMESTAMP:
    case DECIMAL128:
        return JsonToken.NUMBER;
    case NULL:
        return JsonToken.NULL;
    default:
        // not really sure what to do with this type
        return JsonToken.NULL;
    }
}

---

From source file:org.jetbrains.io.JsonReaderEx.java

License:Apache License

/**
 * Returns the type of the next token without consuming it.
 *///from  w w w . j a  v a2  s .  c  o m
public JsonToken peek() {
    int p = peeked;
    if (p == PEEKED_NONE) {
        p = doPeek();
    }

    switch (p) {
    case PEEKED_BEGIN_OBJECT:
        return JsonToken.BEGIN_OBJECT;
    case PEEKED_END_OBJECT:
        return JsonToken.END_OBJECT;
    case PEEKED_BEGIN_ARRAY:
        return JsonToken.BEGIN_ARRAY;
    case PEEKED_END_ARRAY:
        return JsonToken.END_ARRAY;
    case PEEKED_SINGLE_QUOTED_NAME:
    case PEEKED_DOUBLE_QUOTED_NAME:
    case PEEKED_UNQUOTED_NAME:
        return JsonToken.NAME;
    case PEEKED_TRUE:
    case PEEKED_FALSE:
        return JsonToken.BOOLEAN;
    case PEEKED_NULL:
        return JsonToken.NULL;
    case PEEKED_SINGLE_QUOTED:
    case PEEKED_DOUBLE_QUOTED:
    case PEEKED_UNQUOTED:
    case PEEKED_BUFFERED:
        return JsonToken.STRING;
    case PEEKED_LONG:
    case PEEKED_NUMBER:
        return JsonToken.NUMBER;
    case PEEKED_EOF:
        return JsonToken.END_DOCUMENT;
    default:
        throw new AssertionError();
    }
}

---

From source file:org.kairosdb.core.http.rest.json.DataPointsParser.java

License:Apache License

public ValidationErrors parse() throws IOException, DatastoreException {
    long start = System.currentTimeMillis();
    ValidationErrors validationErrors = new ValidationErrors();

    JsonReader reader = new JsonReader(inputStream);

    try {//from  ww w.  j a  v  a 2 s .  c  o m
        int metricCount = 0;

        if (reader.peek().equals(JsonToken.BEGIN_ARRAY)) {
            try {
                reader.beginArray();

                while (reader.hasNext()) {
                    NewMetric metric = parseMetric(reader);
                    validateAndAddDataPoints(metric, validationErrors, metricCount);
                    metricCount++;
                }
            } catch (EOFException e) {
                validationErrors.addErrorMessage("Invalid json. No content due to end of input.");
            }

            reader.endArray();
        } else if (reader.peek().equals(JsonToken.BEGIN_OBJECT)) {
            NewMetric metric = parseMetric(reader);
            validateAndAddDataPoints(metric, validationErrors, 0);
        } else
            validationErrors.addErrorMessage("Invalid start of json.");

    } catch (EOFException e) {
        validationErrors.addErrorMessage("Invalid json. No content due to end of input.");
    } finally {
        reader.close();
    }

    ingestTime = (int) (System.currentTimeMillis() - start);

    return validationErrors;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• »