Example usage for com.google.gson JsonElement isJsonObject

Introduction

In this page you can find the example usage for com.google.gson JsonElement isJsonObject.

Prototype

public boolean isJsonObject() 

Source Link

Document

provides check for verifying if this element is a Json object or not.

Usage

From source file:com.ibm.og.json.type.SelectionConfigTypeAdapterFactory.java

License:Open Source License

@Override
@SuppressWarnings("unchecked")
public <T> TypeAdapter<T> create(final Gson gson, final TypeToken<T> type) {
    final Class<T> rawType = (Class<T>) type.getRawType();
    if (!SelectionConfig.class.equals(rawType)) {
        return null;
    }//w w w  .  j  a v a2s .  com

    final TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);

    return new TypeAdapter<T>() {
        @Override
        public void write(final JsonWriter out, final T value) throws IOException {
            delegate.write(out, value);
        }

        @Override
        public T read(final JsonReader in) throws IOException {
            final Class<?> genericType = (Class<?>) ((ParameterizedType) type.getType())
                    .getActualTypeArguments()[0];
            final JsonElement element = gson.getAdapter(JsonElement.class).read(in);

            if (element.isJsonObject()) {
                final JsonObject object = element.getAsJsonObject();
                if (object.entrySet().size() <= 2 && object.has("choices")) {
                    return delegate.fromJsonTree(object);
                } else {
                    return (T) choice(genericType, object);
                }
            } else if (element.isJsonArray()) {
                return (T) choiceList(genericType, element.getAsJsonArray());
            }

            return (T) choice(genericType, element);
        }

        private <S> SelectionConfig<S> choice(final Class<S> clazz, final JsonElement element)
                throws IOException {
            final SelectionConfig<S> config = new SelectionConfig<S>();
            config.choices.add(gson.getAdapter(choiceToken(clazz)).fromJsonTree(element));
            return config;
        }

        private <S> SelectionConfig<S> choiceList(final Class<S> clazz, final JsonArray array)
                throws IOException {
            final SelectionConfig<S> config = new SelectionConfig<S>();
            config.choices = gson.getAdapter(choiceListToken(clazz)).fromJsonTree(array);
            return config;
        }

        // must use guava's TypeToken implementation to create a TypeToken instance with a dynamic
        // type; then convert back to gson's TypeToken implementation for use in calling code. See:
        // https://groups.google.com/forum/#!topic/guava-discuss/HdBuiO44uaw
        private <S> TypeToken<ChoiceConfig<S>> choiceToken(final Class<S> clazz) {
            @SuppressWarnings("serial")
            final com.google.common.reflect.TypeToken<ChoiceConfig<S>> choiceToken = new com.google.common.reflect.TypeToken<ChoiceConfig<S>>() {
            }.where(new TypeParameter<S>() {
            }, com.google.common.reflect.TypeToken.of(clazz));

            return (TypeToken<ChoiceConfig<S>>) TypeToken.get(choiceToken.getType());
        }

        private <S> TypeToken<List<ChoiceConfig<S>>> choiceListToken(final Class<S> clazz) {
            @SuppressWarnings("serial")
            final com.google.common.reflect.TypeToken<List<ChoiceConfig<S>>> choiceToken = new com.google.common.reflect.TypeToken<List<ChoiceConfig<S>>>() {
            }.where(new TypeParameter<S>() {
            }, com.google.common.reflect.TypeToken.of(clazz));

            return (TypeToken<List<ChoiceConfig<S>>>) TypeToken.get(choiceToken.getType());
        }
    }.nullSafe();
}

---

From source file:com.ibm.streamsx.topology.generator.spl.SubmissionTimeValue.java

License:Open Source License

/**
 * Enrich the json composite operator definition's parameters
 * to include parameters for submission parameters.
 * <p>// ww  w. j  a va  2 s. c  o  m
 * The composite is augmented with a TYPE_SUBMISSION_PARAMETER parameter
 * for each submission parameter used within the composite - e.g, as
 * a parallel width value or SPL operator parameter value.
 * <p>
 * If the composite has any functional operator children, enrich
 * the composite to have declarations for all submission parameters.
 * Also accumulate the functional children and make them available via
 * {@link #getFunctionalOps()}.
 * 
 * @param composite the composite definition
 */

void addJsonParamDefs(JsonObject composite) {
    // scan immediate children ops for submission param use
    // and add corresponding param definitions to the composite.
    // Also, if the op has functional logic, enrich the op too...
    // and further enrich the composite.

    if (allSubmissionParams.isEmpty())
        return;

    // scan for spParams
    JsonObject spParams = new JsonObject();
    AtomicBoolean addedAll = new AtomicBoolean();
    GsonUtilities.objectArray(composite, "operators", op -> {
        JsonObject params = jobject(op, "parameters");
        if (params != null) {
            boolean addAll = false;
            for (Entry<String, JsonElement> p : params.entrySet()) {
                // if functional logic add "submissionParameters" param
                if (params.has(FUNCTIONAL_LOGIC_PARAM)) {
                    functionalOps.put(jstring(op, "name"), op);
                    addAll = true;
                    break;
                } else {
                    JsonObject param = p.getValue().getAsJsonObject();
                    String type = jstring(param, "type");
                    if (TYPE_SUBMISSION_PARAMETER.equals(type)) {
                        addInnerCompositeParameter(spParams, param);
                    }
                }
            }
            if (addAll && !addedAll.getAndSet(true)) {
                for (String name : allSubmissionParams.keySet()) {
                    addInnerCompositeParameter(spParams, allSubmissionParams.get(name));
                }
            }
        }
        boolean isParallel = jboolean(op, "parallelOperator");
        if (isParallel) {
            JsonElement width = op.get("parallelInfo").getAsJsonObject().get("width");
            if (width.isJsonObject()) {
                JsonObject jwidth = width.getAsJsonObject();
                String type = jstring(jwidth, "type");
                if (TYPE_SUBMISSION_PARAMETER.equals(type)) {
                    addInnerCompositeParameter(spParams, jwidth);
                }
            }
        }
    });

    // augment the composite's parameters
    JsonObject params = jobject(composite, "parameters");
    if (params == null && !GsonUtilities.jisEmpty(spParams)) {
        params = new JsonObject();
        composite.add("parameters", params);
    }
    for (Entry<String, JsonElement> p : spParams.entrySet()) {
        String pname = p.getKey();
        if (!params.has(pname))
            params.add(pname, spParams.get(pname));
    }

    // make the results of our efforts available to addJsonInstanceParams
    composite.add(OP_ATTR_SPL_SUBMISSION_PARAMS, spParams);
}

---

From source file:com.ibm.streamsx.topology.internal.streaminganalytics.VcapServices.java

License:Open Source License

/**
 * Get the top-level VCAP services object.
 * //from   w w w.ja  v a2s . co m
 * Object can be one of the following:
 * <ul>
 * <li>JsonObject - assumed to contain VCAP_SERVICES </li>
 * <li>String - assumed to contain serialized VCAP_SERVICES JSON, or the
 * location of a file containing the serialized VCAP_SERVICES JSON</li>
 * <li>null - assumed to be in the environment variable VCAP_SERVICES</li>
 * </ul>
 */
public static JsonObject getVCAPServices(JsonElement rawServices) throws IOException {

    JsonParser parser = new JsonParser();
    String vcapString;
    String vcapContents = null;

    if (rawServices == null || rawServices.isJsonNull()) {
        // if rawServices is null, then pull from the environment
        vcapString = System.getenv("VCAP_SERVICES");
        if (vcapString == null) {
            throw new IllegalStateException(
                    "VCAP_SERVICES are not defined, please set environment variable VCAP_SERVICES or configuration property: "
                            + VCAP_SERVICES);
        }
        // resulting string can be either the serialized JSON or filename
        if (Files.isRegularFile(Paths.get(vcapString))) {
            Path vcapFile = Paths.get(vcapString);
            vcapContents = new String(Files.readAllBytes(vcapFile), StandardCharsets.UTF_8);
        } else {
            vcapContents = vcapString;
        }
    } else if (rawServices.isJsonObject()) {
        return rawServices.getAsJsonObject();
    } else if (rawServices.isJsonPrimitive()) {
        // String can be either the serialized JSON or filename
        String rawString = rawServices.getAsString();
        if (Files.isRegularFile(Paths.get(rawString))) {
            Path vcapFile = Paths.get(rawString);
            vcapContents = new String(Files.readAllBytes(vcapFile), StandardCharsets.UTF_8);
        } else
            vcapContents = rawString;
    } else {
        throw new IllegalArgumentException("Unknown VCAP_SERVICES object class: " + rawServices.getClass());
    }
    return parser.parse(vcapContents).getAsJsonObject();
}

---

From source file:com.ibm.watson.app.common.services.impl.BluemixServicesConfigurationParser.java

License:Open Source License

public void parseAndRegisterServices(JsonElement json) {
    Objects.requireNonNull(json, MessageKey.AQWEGA14019E_json_element_null.getMessage().getFormattedMessage());
    if (!json.isJsonObject()) {
        throw new JsonParseException(MessageKey.AQWEGA14001E_expected_json_object_parse_bluemix_service_conf
                .getMessage().getFormattedMessage());
    }/*from w w  w  .ja  va 2 s.  c  o  m*/

    final boolean isTrace = logger.isTraceEnabled();

    for (Entry<String, JsonElement> entry : json.getAsJsonObject().entrySet()) {
        final String serviceKey = entry.getKey();
        final JsonElement serviceConfigArray = entry.getValue();
        if (!serviceConfigArray.isJsonArray()) {
            throw new JsonParseException(MessageKey.AQWEGA14002E_expected_json_array_while_parsing_config_1
                    .getMessage(serviceKey).getFormattedMessage());
        }

        BluemixServiceInfo<? extends BluemixConfiguredService> service = BluemixServicesBinder
                .getBluemixServiceByName(serviceKey);
        if (service == null) {
            logger.warn(MessageKey.AQWEGA12001W_unexpected_conf_supplied_for_service_ignore_1
                    .getMessage(serviceKey));
            continue;
        }

        if (isTrace) {
            logger.trace("Loading configuration for service '" + serviceKey + "'");
        }

        for (JsonElement serviceInstanceConfig : serviceConfigArray.getAsJsonArray()) {
            try {
                BluemixConfiguredService serviceImpl = service.serviceImpl.getConstructor().newInstance();
                serviceImpl
                        .setConfig(gson.fromJson(serviceInstanceConfig, serviceImpl.getConfigurationClass()));
                serviceImpl.initialize();
                register(service, serviceImpl);
            } catch (IllegalAccessException | InstantiationException | IllegalArgumentException
                    | InvocationTargetException | NoSuchMethodException | SecurityException e) {
                logger.warn(MessageKey.AQWEGA12002W_unable_register_service_error_2.getMessage(serviceKey,
                        e.getMessage()));
                logger.catching(Level.DEBUG, e);
            }
        }
    }
}

---

From source file:com.ibm.watson.developer_cloud.alchemy.v1.util.AlchemyEndPoints.java

License:Open Source License

/**
 * Load the endpoints from json file./*from w  ww. j a va  2 s  . co  m*/
 */
private static void loadEndPointsFromJsonFile() {
    LOG.log(Level.FINE, "Parsing End Points JSON file ");
    operationsByEndpoint = new HashMap<String, Map<String, String>>();
    final JsonParser parser = new JsonParser();

    Reader fileReader = null;
    try {
        final InputStream is = AlchemyEndPoints.class.getResourceAsStream(FILE_PATH);
        if (null != is) {
            fileReader = new InputStreamReader(is);
        }
        final Object obj = parser.parse(fileReader);
        final JsonObject jsonObject = (JsonObject) obj;
        for (final AlchemyAPI object : AlchemyAPI.values()) {
            if (jsonObject.get(object.name()) == null) {
                continue;
            }
            final JsonElement elt = jsonObject.get(object.name()).getAsJsonObject();
            if (elt.isJsonObject()) {
                final Map<String, String> records = new HashMap<String, String>();
                for (final Map.Entry<String, JsonElement> e : elt.getAsJsonObject().entrySet()) {
                    records.put(e.getKey(), e.getValue().getAsString());
                }
                operationsByEndpoint.put(object.name(), records);
            }
        }
    } catch (final JsonParseException e) {
        LOG.log(Level.SEVERE, "Could not parse json file: " + FILE_PATH, e);
    } catch (final NullPointerException e) {
        LOG.log(Level.SEVERE, "Not able to locate the end points json file: " + FILE_PATH, e);
    } finally {
        if (fileReader != null) {
            try {
                fileReader.close();
            } catch (final IOException e) {
                LOG.log(Level.SEVERE, "Could not close file reader: " + FILE_PATH, e);
            }
        }
    }
}

---

From source file:com.ibm.watson.developer_cloud.util.AlchemyEndPoints.java

License:Open Source License

/**
 * Load the endpoints from json file./*w  w  w.  j a  v  a2  s .  c  o m*/
 */
private static void loadEndPointsFromJsonFile() {
    log.log(Level.FINE, "Parsing End Points JSON file ");
    operations = new HashMap<String, Map<String, String>>();
    JsonParser parser = new JsonParser();
    try {
        Object obj = parser.parse(new FileReader(filePath));
        JsonObject jsonObject = (JsonObject) obj;
        for (AlchemyAPI object : AlchemyAPI.values()) {
            if (jsonObject.get(object.name()) == null)
                continue;
            ;
            JsonElement elt = jsonObject.get(object.name()).getAsJsonObject();
            if (elt.isJsonObject()) {
                Map<String, String> records = new HashMap<String, String>();
                for (Map.Entry<String, JsonElement> e : elt.getAsJsonObject().entrySet()) {
                    records.put(e.getKey(), e.getValue().getAsString());
                }
                operations.put(object.name(), records);
            }
        }
    } catch (JsonParseException e) {
        log.log(Level.SEVERE, "Could not parse json file: " + filePath, e);
    } catch (FileNotFoundException e) {
        log.log(Level.SEVERE, "File not found: " + filePath, e);
    }
}

---

From source file:com.iheart.quickio.client.QuickIo.java

License:Open Source License

private void routeCallback(final String evPath, final QuickIoCallback cb, final JsonElement json) {
    if (!json.isJsonObject()) {
        return;//w  ww .  j  a  va2s.c om
    }

    long cbId = Long.parseLong(evPath.substring(QuickIo.EV_CALLBACK.length()));

    QuickIoCallback evCb = null;
    synchronized (this) {
        evCb = this.cbs.remove(cbId);
    }
    if (evCb == null) {
        return;
    }

    JsonObject obj = json.getAsJsonObject();
    int code = obj.get("code").getAsInt();
    String errMsg = "";
    if (obj.has("err_msg")) {
        JsonElement errObj = obj.get("err_msg");
        errMsg = errObj.isJsonNull() ? null : errObj.getAsString();
    }

    evCb.onCallback(obj.get("data"), cb, code, errMsg);
}

---

From source file:com.ikanow.infinit.e.data_model.custom.InfiniteFileInputJsonParser.java

License:Apache License

private BasicDBObject getDocumentFromJson(boolean bRecursing) throws IOException {
    if (!_inSecondaryObject) {
        reader.beginObject();//from  w w  w  .j  a  va2s .c o  m
        _inSecondaryObject = true;
    }

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

        boolean bMatch = false;
        if (bRecursing) {
            bMatch = recursiveObjectIdentifiers.contains(name.toLowerCase());
        } else {
            bMatch = objectIdentifiers.contains(name.toLowerCase());
        } //TESTED

        if (bMatch) {
            JsonElement meta = parser.parse(reader);

            if (meta.isJsonObject()) {

                BasicDBObject currObj = convertJsonToDocument(meta);
                if (null != currObj) {
                    return currObj;
                }
            } //TESTED
            else if (meta.isJsonArray()) {
                _secondaryArray = meta.getAsJsonArray();
                _posInSecondaryArray = 0;
                for (JsonElement meta2 : _secondaryArray) {
                    _posInSecondaryArray++;
                    BasicDBObject currObj = convertJsonToDocument(meta2);
                    if (null != currObj) {
                        return currObj;
                    }
                }
                _secondaryArray = null;
            } //TESTED

        } //TESTED
        else {
            if (bRecurse) { //TODO (INF-2469): Not currently supported, it gets a bit tricky? (need to convert to a stack)

                JsonToken tok = reader.peek();
                if (JsonToken.BEGIN_OBJECT == tok) {
                    BasicDBObject currObj = getDocumentFromJson(true);
                    if (null != currObj) {
                        return currObj;
                    }
                } //TESTED
                else if (JsonToken.BEGIN_ARRAY == tok) {
                    reader.beginArray();
                    while (reader.hasNext()) {
                        JsonToken tok2 = reader.peek();

                        if (JsonToken.BEGIN_OBJECT == tok2) {
                            BasicDBObject currObj = getDocumentFromJson(true);
                            if (null != currObj) {
                                return currObj;
                            }
                        } else {
                            reader.skipValue();
                        } //TESTED

                    } //TESTED      
                    reader.endArray();
                } else {
                    reader.skipValue();
                } //TESTED
            } else {
                reader.skipValue();
            } //TESTED
        }

    } //(end loop over reader)

    reader.endObject();
    _inSecondaryObject = false;

    return null;

}

---

From source file:com.ikanow.infinit.e.data_model.custom.InfiniteFileInputJsonParser.java

License:Apache License

private BasicDBObject convertJsonToDocument(JsonElement meta) {

    // Check if all required fields exist:
    if (!checkIfMandatoryFieldsExist(meta)) {
        return null;
    }//from w  w  w  .jav  a 2  s  .c  o  m
    //TESTED

    // Primary key and create doc
    BasicDBObject currObj = new BasicDBObject();
    if ((null != primaryKey) && (null != sourceName)) {
        String primaryKey = getPrimaryKey(meta);
        if (null != primaryKey) {
            currObj.put(DocumentPojo.url_, sourceName + primaryKey);
        }
    }

    if (meta.isJsonObject()) {
        currObj.put(DocumentPojo.metadata_,
                new BasicDBObject("json", Arrays.asList(convertJsonObjectToBson(meta.getAsJsonObject()))));
    }
    return currObj;

}

---

From source file:com.ikanow.infinit.e.data_model.custom.InfiniteFileInputJsonParser.java

License:Apache License

private String getKey(JsonElement meta, String key, boolean bPrimitiveOnly) {
    try {/*  w ww.j a va 2  s  . com*/
        String[] components = key.split("\\.");
        JsonObject metaObj = meta.getAsJsonObject();
        for (String comp : components) {
            meta = metaObj.get(comp);

            if (null == meta) {
                return null;
            } //TESTED
            else if (meta.isJsonObject()) {
                metaObj = meta.getAsJsonObject();
            } //TESTED
            else if (meta.isJsonPrimitive()) {
                return meta.getAsString();
            } //TESTED
            else if (bPrimitiveOnly) { // (meta isn't allowed to be an array, then you'd have too many primary keys!)
                return null;
            } //TOTEST (? - see JsonToMetadataParser)
            else { // Check with first instance
                JsonArray array = meta.getAsJsonArray();
                meta = array.get(0);
                if (meta.isJsonObject()) {
                    metaObj = meta.getAsJsonObject();
                }
            } //TESTED            
        }
        if (!bPrimitiveOnly) { // allow objects, we just care if the field exists...
            if (null != metaObj) {
                return "[Object]";
            }
        } //TESTED
    } catch (Exception e) {
    } // no primary key

    return null;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »