Example usage for com.google.gson JsonElement isJsonObject

List of usage examples for com.google.gson JsonElement isJsonObject

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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.haulmont.cuba.core.app.importexport.EntityImportViewBuilder.java

License:Apache License

@Override
public EntityImportView buildFromJson(String json, MetaClass metaClass) {
    JsonParser jsonParser = new JsonParser();
    JsonElement rootElement = jsonParser.parse(json);
    if (!rootElement.isJsonObject()) {
        throw new RuntimeException("Passed json is not a JSON object");
    }/*from  w w  w  . ja  va2s  . co  m*/
    return buildFromJsonObject(rootElement.getAsJsonObject(), metaClass);
}

From source file:com.haulmont.cuba.core.app.importexport.EntityImportViewBuilder.java

License:Apache License

protected EntityImportView buildFromJsonObject(JsonObject jsonObject, MetaClass metaClass) {
    EntityImportView view = new EntityImportView(metaClass.getJavaClass());

    for (Map.Entry<String, JsonElement> entry : jsonObject.entrySet()) {
        String propertyName = entry.getKey();
        MetaProperty metaProperty = metaClass.getProperty(propertyName);
        if (metaProperty != null) {
            Range propertyRange = metaProperty.getRange();
            Class<?> propertyType = metaProperty.getJavaType();
            if (propertyRange.isDatatype() || propertyRange.isEnum()) {
                if (security.isEntityAttrUpdatePermitted(metaClass, propertyName))
                    view.addLocalProperty(propertyName);
            } else if (propertyRange.isClass()) {
                if (Entity.class.isAssignableFrom(propertyType)) {
                    if (metadataTools.isEmbedded(metaProperty)) {
                        MetaClass propertyMetaClass = metadata.getClass(propertyType);
                        JsonElement propertyJsonObject = entry.getValue();
                        if (!propertyJsonObject.isJsonObject()) {
                            throw new RuntimeException("JsonObject was expected for property " + propertyName);
                        }//  w  ww. j a v a  2s  . co m
                        if (security.isEntityAttrUpdatePermitted(metaClass, propertyName)) {
                            EntityImportView propertyImportView = buildFromJsonObject(
                                    propertyJsonObject.getAsJsonObject(), propertyMetaClass);
                            view.addEmbeddedProperty(propertyName, propertyImportView);
                        }
                    } else {
                        MetaClass propertyMetaClass = metadata.getClass(propertyType);
                        if (metaProperty.getType() == MetaProperty.Type.COMPOSITION) {
                            JsonElement propertyJsonObject = entry.getValue();
                            if (security.isEntityAttrUpdatePermitted(metaClass, propertyName)) {
                                if (propertyJsonObject.isJsonNull()) {
                                    //in case of null we must add such import behavior to update the reference with null value later
                                    if (metaProperty.getRange()
                                            .getCardinality() == Range.Cardinality.MANY_TO_ONE) {
                                        view.addManyToOneProperty(propertyName,
                                                ReferenceImportBehaviour.IGNORE_MISSING);
                                    } else {
                                        view.addOneToOneProperty(propertyName,
                                                ReferenceImportBehaviour.IGNORE_MISSING);
                                    }
                                } else {
                                    if (!propertyJsonObject.isJsonObject()) {
                                        throw new RuntimeException(
                                                "JsonObject was expected for property " + propertyName);
                                    }
                                    EntityImportView propertyImportView = buildFromJsonObject(
                                            propertyJsonObject.getAsJsonObject(), propertyMetaClass);
                                    if (metaProperty.getRange()
                                            .getCardinality() == Range.Cardinality.MANY_TO_ONE) {
                                        view.addManyToOneProperty(propertyName, propertyImportView);
                                    } else {
                                        view.addOneToOneProperty(propertyName, propertyImportView);
                                    }
                                }
                            }
                        } else {
                            if (security.isEntityAttrUpdatePermitted(metaClass, propertyName))
                                if (metaProperty.getRange().getCardinality() == Range.Cardinality.MANY_TO_ONE) {
                                    view.addManyToOneProperty(propertyName,
                                            ReferenceImportBehaviour.ERROR_ON_MISSING);
                                } else {
                                    view.addOneToOneProperty(propertyName,
                                            ReferenceImportBehaviour.ERROR_ON_MISSING);
                                }
                        }
                    }
                } else if (Collection.class.isAssignableFrom(propertyType)) {
                    MetaClass propertyMetaClass = metaProperty.getRange().asClass();
                    switch (metaProperty.getRange().getCardinality()) {
                    case MANY_TO_MANY:
                        if (security.isEntityAttrUpdatePermitted(metaClass, propertyName))
                            view.addManyToManyProperty(propertyName, ReferenceImportBehaviour.ERROR_ON_MISSING,
                                    CollectionImportPolicy.REMOVE_ABSENT_ITEMS);
                        break;
                    case ONE_TO_MANY:
                        if (metaProperty.getType() == MetaProperty.Type.COMPOSITION) {
                            JsonElement compositionJsonArray = entry.getValue();
                            if (!compositionJsonArray.isJsonArray()) {
                                throw new RuntimeException(
                                        "JsonArray was expected for property " + propertyName);
                            }
                            EntityImportView propertyImportView = buildFromJsonArray(
                                    compositionJsonArray.getAsJsonArray(), propertyMetaClass);
                            if (security.isEntityAttrUpdatePermitted(metaClass, propertyName))
                                view.addOneToManyProperty(propertyName, propertyImportView,
                                        CollectionImportPolicy.REMOVE_ABSENT_ITEMS);
                        }
                        break;
                    }
                }
            }
        }
    }

    return view;
}

From source file:com.hbm.devices.jet.JetPeer.java

License:Open Source License

@Override
public void update(Observable observable, Object obj) {
    try {/*from   w  w  w .  j ava  2s.  c  o m*/
        JsonElement element = parser.parse((String) obj);
        if (element == null) {
            return;
        }

        if (element.isJsonObject()) {
            handleSingleJsonMessage((JsonObject) element);
        } else if (element.isJsonArray()) {
            JsonArray array = (JsonArray) element;
            for (int i = 0; i < array.size(); i++) {
                JsonElement e = array.get(i);
                if (e.isJsonObject()) {
                    handleSingleJsonMessage((JsonObject) e);
                }
            }
        }
    } catch (JsonSyntaxException e) {
        /*
         * There is no error handling necessary in this case. If somebody sends us invalid JSON,
         * we just ignore the packet and go ahead.
         */
        LOGGER.log(Level.SEVERE, "Can't parse JSON!", e);
    }
}

From source file:com.helion3.prism.util.DataUtil.java

License:MIT License

/**
 * Attempts to convert a JsonElement to an a known type.
 *
 * @param element JsonElement/*from ww  w  .j  av a2s .c  om*/
 * @return Optional<Object>
 */
private static Optional<Object> jsonElementToObject(JsonElement element) {
    Object result = null;

    if (element.isJsonObject()) {
        result = dataViewFromJson(element.getAsJsonObject());
    } else if (element.isJsonPrimitive()) {
        JsonPrimitive prim = element.getAsJsonPrimitive();

        if (prim.isBoolean()) {
            result = prim.getAsBoolean();
        } else if (prim.isNumber()) {
            result = prim.getAsNumber().intValue();
        } else if (prim.isString()) {
            result = prim.getAsString();
        }
    } else if (element.isJsonArray()) {
        List<Object> list = new ArrayList<Object>();
        JsonArray arr = element.getAsJsonArray();
        arr.forEach(new Consumer<JsonElement>() {
            @Override
            public void accept(JsonElement t) {
                Optional<Object> translated = jsonElementToObject(t);
                if (translated.isPresent()) {
                    list.add(translated.get());
                }
            }
        });

        result = list;
    }

    return Optional.ofNullable(result);
}

From source file:com.hkm.disqus.api.gson.PostTypeAdapterFactory.java

License:Apache License

@Override
public <T> TypeAdapter<T> create(final Gson gson, TypeToken<T> type) {
    // Return null if not a post object
    if (!type.getType().equals(Post.class)) {
        return null;
    }//from   w  ww  . j a  v a  2  s  .co  m

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

    // Return adapter
    return new TypeAdapter<T>() {

        @Override
        public void write(JsonWriter out, T value) throws IOException {
            delegate.write(out, value);
        }

        @Override
        public T read(JsonReader in) throws IOException {
            JsonElement jsonTree = gson.fromJson(in, JsonElement.class);
            JsonElement forum = jsonTree.getAsJsonObject().get("forum");
            JsonElement thread = jsonTree.getAsJsonObject().get("thread");

            // Process the post with the delegate
            T post = delegate.fromJsonTree(jsonTree);

            // Process forum and thread if needed
            if (forum.isJsonObject()) {
                ((Post) post).forum = gson.fromJson(forum, Forum.class);
            }
            if (thread.isJsonObject()) {
                ((Post) post).thread = gson.fromJson(thread, Thread.class);
            }

            // Return post
            return post;
        }

    };

}

From source file:com.hkm.disqus.api.gson.ThreadTypeAdapterFactory.java

License:Apache License

@Override
public <T> TypeAdapter<T> create(final Gson gson, TypeToken<T> type) {
    // Return null if not the thread type
    if (!type.getType().equals(Thread.class)) {
        return null;
    }/*from www  .  j a va 2  s  .  c o m*/

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

    // Return adapter
    return new TypeAdapter<T>() {

        @Override
        public void write(JsonWriter out, T value) throws IOException {
            delegate.write(out, value);
        }

        @Override
        public T read(JsonReader in) throws IOException {
            JsonElement jsonTree = gson.fromJson(in, JsonElement.class);
            JsonElement forum = jsonTree.getAsJsonObject().get("forum");
            JsonElement author = jsonTree.getAsJsonObject().get("author");
            JsonElement category = jsonTree.getAsJsonObject().get("category");

            // Process the thread with the delegate
            T thread = delegate.fromJsonTree(jsonTree);

            // Process forum and author if needed
            if (forum.isJsonObject()) {
                ((Thread) thread).forum = gson.fromJson(forum, Forum.class);
            }
            if (author.isJsonObject()) {
                ((Thread) thread).author = gson.fromJson(author, User.class);
            }
            if (category.isJsonObject()) {
                ((Thread) thread).category = gson.fromJson(category, Category.class);
            }

            // Return thread
            return thread;
        }

    };

}

From source file:com.hybris.datahub.service.impl.DefaultJsonService.java

License:Open Source License

@Override
public List<Map<String, String>> parse(final String json) {
    final List<Map<String, String>> result = new LinkedList<Map<String, String>>();
    final JsonElement jsonElement = new JsonParser().parse(json);
    if (jsonElement.isJsonArray()) {
        final Iterator<JsonElement> iterator = jsonElement.getAsJsonArray().iterator();
        while (iterator.hasNext()) {
            final JsonElement jsonElementInArray = iterator.next();
            result.add(convertJsonObject(jsonElementInArray.getAsJsonObject()));
        }/*from  ww w  .j ava2s .co  m*/
    } else if (jsonElement.isJsonObject()) {
        result.add(convertJsonObject(jsonElement.getAsJsonObject()));
    }
    return result;
}

From source file:com.ibasco.agql.core.AbstractWebApiInterface.java

License:Open Source License

/**
 * Converts the underlying processed content to a {@link com.google.gson.JsonObject} instance
 *//*w ww.  j a v a2s .  co  m*/
@SuppressWarnings("unchecked")
private <A> A postProcessConversion(Res response) {
    log.debug("ConvertToJson for Response = {}, {}", response.getMessage().getStatusCode(),
            response.getMessage().getHeaders());
    JsonElement processedElement = response.getProcessedContent();
    if (processedElement != null) {
        if (processedElement.isJsonObject())
            return (A) processedElement.getAsJsonObject();
        else if (processedElement.isJsonArray())
            return (A) processedElement.getAsJsonArray();
    }
    throw new AsyncGameLibUncheckedException("No parsed content found for response" + response);
}

From source file:com.ibasco.agql.protocols.valve.steam.webapi.adapters.SteamAssetClassInfoMapDeserializer.java

License:Open Source License

@Override
public Map<String, SteamAssetClassInfo> deserialize(JsonElement json, Type typeOfT,
        JsonDeserializationContext context) throws JsonParseException {
    Map<String, SteamAssetClassInfo> map = new HashMap<>();
    JsonObject jObject = json.getAsJsonObject();
    for (Map.Entry<String, JsonElement> entry : jObject.entrySet()) {
        String key = entry.getKey();
        JsonElement value = entry.getValue();
        //Only process entries that are of type object
        if (value.isJsonObject()) {
            map.put(key, context.deserialize(value, SteamAssetClassInfo.class));
        }/*from  ww w .jav  a2s.com*/
    }
    log.debug("Finished populating map. Total Map Size: {}", map.size());
    return map;
}

From source file:com.ibasco.agql.protocols.valve.steam.webapi.adapters.SteamAssetDescDeserializer.java

License:Open Source License

@Override
public SteamAssetDescription deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
        throws JsonParseException {
    SteamAssetDescription desc = new SteamAssetDescription();
    JsonObject jsonObj = json.getAsJsonObject();
    String type = jsonObj.getAsJsonPrimitive("type").getAsString();
    String value = jsonObj.getAsJsonPrimitive("value").getAsString();
    Map<String, String> mAppData = new HashMap<>();
    JsonElement appData = jsonObj.get("app_data");
    if (appData.isJsonObject()) {
        desc.setAppData(context.deserialize(appData, HashMap.class));
    } else {//from  w  w  w .ja v a2s . c o  m
        desc.setAppData(mAppData);
    }
    desc.setType(type);
    desc.setValue(value);
    return desc;
}