Example usage for com.google.gson JsonArray JsonArray

Introduction

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

Prototype

public JsonArray()

Source Link

Document

Creates an empty JsonArray.

Usage

From source file:com.balajeetm.mystique.util.gson.lever.JsonLever.java

License:Open Source License

/**
 * Gets the jpath for a '.' separated string defining the fully qualified path of a field in Json.
 * Array Indexes are referred via numbers.
 *
 * @param jpath the jpath/*from ww  w.j  ava 2s . co m*/
 * @return the fully qualified path as a JsonArray. Array Indexes are represented as numbers
 */
public JsonArray getJpath(String jpath) {
    JsonArray jlist = new JsonArray();
    if (!StringUtils.contains(jpath, ".")) {
        jlist.add(getTypedPath(jpath));
    } else {
        String[] split = StringUtils.split(jpath, ".");
        for (String sp : split) {
            jlist.add(getTypedPath(sp));
        }
    }
    return jlist;
}

From source file:com.balajeetm.mystique.util.gson.lever.JsonLever.java

License:Open Source License

/**
 * New json array./*from   w  w w . ja va2 s. c  om*/
 *
 * @param path the path
 * @return the json array
 */
public JsonArray newJsonArray(Object... path) {
    JsonArray output = new JsonArray();
    for (Object p : path) {
        output.add(getTypedPath(p, Boolean.FALSE));
    }
    return output;
}

From source file:com.balajeetm.mystique.util.gson.lever.JsonLever.java

License:Open Source License

/**
 * A recursive merge of two json elements.
 *
 * @param source1 the first json element
 * @param source2 the second json element
 * @param mergeArray the flag to denote if arrays should be merged
 * @return the recursively merged json element
 *//*from w w w  . ja  v a  2  s .c o m*/
public JsonElement merge(JsonElement source1, JsonElement source2, Boolean mergeArray) {
    mergeArray = null == mergeArray ? Boolean.FALSE : mergeArray;
    JsonElement result = JsonNull.INSTANCE;
    source1 = asJsonElement(source1, JsonNull.INSTANCE);
    source2 = asJsonElement(source2, JsonNull.INSTANCE);
    if (source1.getClass().equals(source2.getClass())) {
        if (source1.isJsonObject()) {
            JsonObject obj1 = asJsonObject(source1);
            JsonObject obj2 = asJsonObject(source2);
            result = obj1;
            JsonObject resultObj = result.getAsJsonObject();
            for (Entry<String, JsonElement> entry : obj1.entrySet()) {
                String key = entry.getKey();
                JsonElement value1 = entry.getValue();
                JsonElement value2 = obj2.get(key);
                JsonElement merge = merge(value1, value2, mergeArray);
                resultObj.add(key, merge);
            }
            for (Entry<String, JsonElement> entry : obj2.entrySet()) {
                String key = entry.getKey();
                if (!resultObj.has(key)) {
                    resultObj.add(key, entry.getValue());
                }
            }
        } else if (source1.isJsonArray()) {
            result = new JsonArray();
            JsonArray resultArray = result.getAsJsonArray();
            JsonArray array1 = asJsonArray(source1);
            JsonArray array2 = asJsonArray(source2);
            int index = 0;
            int a1size = array1.size();
            int a2size = array2.size();

            if (!mergeArray) {
                for (; index < a1size && index < a2size; index++) {
                    resultArray.add(merge(array1.get(index), array2.get(index), mergeArray));
                }
            }

            for (; index < a1size; index++) {
                resultArray.add(array1.get(index));
            }

            index = mergeArray ? 0 : index;

            for (; index < a2size; index++) {
                resultArray.add(array2.get(index));
            }

        } else {
            result = source1 != null ? source1 : source2;
        }
    } else {
        result = isNotNull(source1) ? source1 : source2;
    }
    return result;
}

From source file:com.balajeetm.mystique.util.gson.lever.JsonLever.java

License:Open Source License

/**
 * Sets the field.//www  .  j  a v a2 s.  c om
 *
 * @param field the field
 * @param path the path
 * @param value the value
 * @return the json element
 */
protected JsonElement setField(JsonElement field, JsonElement path, JsonElement value) {
    if (isNumber(path)) {
        JsonArray jArray = asJsonArray(field.getAsJsonArray(), new JsonArray());
        int index = path.getAsInt();
        repleteArray(jArray, index, JsonNull.class);
        jArray.set(index, value);
        field = jArray;
    } else {
        JsonObject jObject = asJsonObject(field, new JsonObject());
        jObject.add(path.getAsString(), value);
        field = jObject;
    }
    return field;
}

From source file:com.balajeetm.mystique.util.gson.lever.JsonLever.java

License:Open Source License

/**
 * Gets the replete field./*from   w ww  .  j  ava  2  s . co  m*/
 *
 * @param field the field
 * @param path the path
 * @param nextPath the next path
 * @return the replete field
 */
protected JsonElement getRepleteField(JsonElement field, JsonElement path, JsonElement nextPath) {
    if (isNumber(path)) {
        Integer index = path.getAsInt();
        if (!isArray(field)) {
            field = new JsonArray();
        }
        JsonArray fArray = repleteArray(field.getAsJsonArray(), index,
                isNumber(nextPath) ? JsonArray.class : JsonObject.class);
        field = fArray;
    } else {
        String fieldName = path.getAsString();
        if (!isObject(field)) {
            field = new JsonObject();
        }
        JsonObject fJson = repleteJson(field.getAsJsonObject(), fieldName,
                isNumber(nextPath) ? JsonArray.class : JsonObject.class);
        field = fJson;
    }
    return field;
}

From source file:com.balajeetm.mystique.util.gson.lever.JsonLever.java

License:Open Source License

/**
 * Replete array.//from w  ww . j a  v  a 2s.  co  m
 *
 * @param source the source
 * @param index the index
 * @param type the type
 * @return the json array
 */
private JsonArray repleteArray(JsonArray source, Integer index, Class<? extends JsonElement> type) {
    source = isNull(source) ? new JsonArray() : source;
    for (int i = 0; i <= index; i++) {
        try {
            source.get(i);
        } catch (IndexOutOfBoundsException e) {
            Class<? extends JsonElement> newType = JsonNull.class;
            if (i == index) {
                newType = type;
            }
            source.add(getNewElement(newType));
        }
    }
    if (!source.get(index).getClass().equals(type)) {
        log.warn(String.format(
                "The element at index %s in the source %s, does not match %s. Creating a new element.", index,
                source, type));
        source.add(getNewElement(type));
    }
    return source;
}

From source file:com.balajeetm.mystique.util.gson.lever.JsonLever.java

License:Open Source License

/**
 * Gets the new element.//from   w  w w .  j  ava  2  s  .co  m
 *
 * @param type the type
 * @return the new element
 */
private JsonElement getNewElement(Class<? extends JsonElement> type) {
    JsonElement element = JsonNull.INSTANCE;
    if (JsonObject.class.equals(type)) {
        element = new JsonObject();
    } else if (JsonArray.class.equals(type)) {
        element = new JsonArray();
    } else {
        try {
            element = type.newInstance();
        } catch (InstantiationException | IllegalAccessException e) {
            log.error(String.format("Could not instantiate json element of type %s", type));
            log.debug(String.format("Could not instantiate json element of type %s.", type), e);
        }
    }
    return element;
}

From source file:com.balajeetm.mystique.util.gson.lever.JsonQuery.java

License:Open Source License

/**
 * Query./*ww w . jav a2s. co  m*/
 *
 * @param query the query
 * @return the json element
 */
public JsonElement query(JsonObject query) {

    JsonElement result = null;
    try {
        Mono<JsonArray> reduce = queryAsync(query).reduce(new JsonArray(), (resultarray, json) -> {
            resultarray.add(json);
            return resultarray;
        });
        result = reduce.block();
    } catch (RuntimeException e) {
        result = new JsonPrimitive(e.getMessage());
    }

    return result;
}

From source file:com.balajeetm.mystique.util.gson.lever.JsonQuery.java

License:Open Source License

/**
 * Select./*from   w ww  . ja va 2s  . c  om*/
 *
 * @param json the json
 * @param selectElement the select element
 * @return the json element
 */
private JsonElement select(JsonElement json, JsonElement selectElement) {
    JsonElement result = null;
    String selectStr = jsonLever.asString(selectElement);
    if (null != selectStr) {
        if (equalsAny(selectStr, "*"))
            result = json;
    } else {
        if (jsonLever.isArray(selectElement)) {
            result = new JsonArray();
            for (JsonElement ele : jsonLever.asJsonArray(selectElement)) {
                jsonLever.asJsonArray(result).add(jsonLever.get(json, ele));
            }
            if (jsonLever.asJsonArray(result).size() == 1) {
                result = jsonLever.getFirst(jsonLever.asJsonArray(result));
            }
        }
    }
    return result;
}

From source file:com.balajeetm.mystique.util.gson.lever.JsonQuery.java

License:Open Source License

/**
 * Filter./*from w ww .j  a  va2s.co  m*/
 *
 * @param json the json
 * @param whereElement the where element
 * @return the boolean
 */
private Boolean filter(JsonElement json, JsonElement whereElement) {
    Boolean filter = Boolean.TRUE;
    JsonArray where = jsonLever.asJsonArray(whereElement, new JsonArray());
    for (JsonElement condition : where) {
        if (jsonLever.isString(condition)) {
            String operator = StringUtils.lowerCase(jsonLever.asString(condition));
            if (equalsAny(operator, "&", "&&", "and")) {
                if (filter) {
                    continue;
                } else {
                    return filter;
                }
            }
            if (equalsAny(operator, "|", "||", "or")) {
                if (!filter) {
                    continue;
                } else {
                    return filter;
                }
            }
        } else if (jsonLever.isObject(condition)) {
            String type = jsonLever.getString(condition, "type");
            type = null != type && queryTypes.containsKey(type) ? type : "=";
            filter = queryTypes.get(type).apply(json, condition.getAsJsonObject());
        }
    }
    return filter;
}