Java Code Examples for com.eclipsesource.json.JsonValue#isNull()

private FractionDescriptor getFractionDescriptor(JsonObject fraction) {
    String groupId = toString(fraction.get("groupId"));
    String artifactId = toString(fraction.get("artifactId"));
    String key = groupId + ":" + artifactId;
    FractionDescriptor descriptor = descriptors.get(key);
    if (descriptor == null) {
        String version = toString(fraction.get("version"));
        String name = toString(fraction.get("name"));
        String description = toString(fraction.get("description"));
        String tags = toString(fraction.get("tags"));
        boolean internal = toBoolean(fraction.get("internal"));

        JsonValue stabilityIndexJson = fraction.get("stabilityIndex");
        int stabilityIndex = stabilityIndexJson == null || stabilityIndexJson.isNull() ? FractionStability.UNSTABLE.ordinal() : stabilityIndexJson.asInt();
        FractionStability stability;
        if (stabilityIndex < 0 || stabilityIndex >= FractionStability.values().length) {
            stability = FractionStability.UNSTABLE;
        } else {
            stability = FractionStability.values()[stabilityIndex];
        }
        descriptor = new FractionDescriptor(groupId, artifactId, version, name, description, tags, internal, stability);
        descriptors.put(key, descriptor);
    }
    return descriptor;
}
 

public String getAsString(final String field){
    JsonValue value = getAsJsonValue(field);
    if (value == null || value.isNull()) {
        return null;
    }
    return value.asString();
}
 

public <T extends BoxJsonObject> T getAsJsonObject(BoxJsonObjectCreator<T> creator, final String field){
    if (mInternalCache.get(field) != null){
        return (T)mInternalCache.get(field);
    }
    JsonValue value = getAsJsonValue(field);

    if (value == null || value.isNull() || !value.isObject()) {
        return null;
    }
    T entity = creator.createFromJsonObject(value.asObject());
    mInternalCache.put(field, entity);
    return entity;
}
 

public ArrayList<String> getAsStringArray(final String field){
    if (mInternalCache.get(field) != null){
        return (ArrayList<String>)mInternalCache.get(field);
    }
    JsonValue value = getAsJsonValue(field);
    if (value == null || value.isNull()) {
        return null;
    }
    ArrayList<String> strings = new ArrayList<String>(value.asArray().size());
    for (JsonValue member : value.asArray()){
        strings.add(member.asString());
    }
    mInternalCache.put(field, strings);
    return strings;
}
 

public HashSet<String> getPropertyAsStringHashSet(String field) {
    if (mInternalCache.get(field) != null){
        return (HashSet<String>)mInternalCache.get(field);
    }
    JsonValue value = getAsJsonValue(field);
    if (value == null || value.isNull()) {
        return null;
    }
    HashSet<String> strings = new HashSet<String>(value.asArray().size());
    for (JsonValue member : value.asArray()){
        strings.add(member.asString());
    }
    mInternalCache.put(field, strings);
    return strings;
}
 

public JsonArray getAsJsonArray(final String field){
    JsonValue value = getAsJsonValue(field);
    if (value == null || value.isNull()) {
        return null;
    }
    return value.asArray();
}
 

public Long getAsLong(final String field){
    JsonValue value = getAsJsonValue(field);
    if (value == null || value.isNull()) {
        return null;
    }
    return value.asLong();
}
 

public Integer getAsInt(final String field){
    JsonValue value = getAsJsonValue(field);
    if (value == null || value.isNull()) {
        return null;
    }
    return value.asInt();
}
 

public Float getAsFloat(final String field){
    JsonValue value = getAsJsonValue(field);
    if (value == null || value.isNull()) {
        return null;
    }
    return value.asFloat();
}
 

public Double getAsDouble(final String field){
    JsonValue value = getAsJsonValue(field);
    if (value == null || value.isNull()) {
        return null;
    }
    return value.asDouble();
}
 

private static int getInt(JsonObject root, String name) throws IOException {
    JsonValue jsv = root.get(name);
    if (jsv.isNull()) {
        throw new IOException(String.format("No %s value present in configuration file", name));
    }
    if (!jsv.isNumber()) {
        throw new IOException(String.format("Invalid value for %s, expected integer", name));
    }
    return jsv.asInt();
}
 

public static String getString(JsonValue value, String name) {
	JsonValue field = ((JsonObject) value).get(name);
	if (field == null || field.isNull()) {
		return null;
	}
	if (!field.isString()) {
		return null;
	}
	return field.asString();
}
 

private EnumSet<Permission> parsePermissions(JsonObject jsonObject) {
    EnumSet<Permission> permissions = EnumSet.noneOf(Permission.class);
    for (JsonObject.Member member : jsonObject) {
        JsonValue value = member.getValue();
        if (value.isNull() || !value.asBoolean()) {
            continue;
        }

        String memberName = member.getName();
        if (memberName.equals("can_download")) {
            permissions.add(Permission.CAN_DOWNLOAD);
        } else if (memberName.equals("can_upload")) {
            permissions.add(Permission.CAN_UPLOAD);
        } else if (memberName.equals("can_rename")) {
            permissions.add(Permission.CAN_RENAME);
        } else if (memberName.equals("can_delete")) {
            permissions.add(Permission.CAN_DELETE);
        } else if (memberName.equals("can_share")) {
            permissions.add(Permission.CAN_SHARE);
        } else if (memberName.equals("can_invite_collaborator")) {
            permissions.add(Permission.CAN_INVITE_COLLABORATOR);
        } else if (memberName.equals("can_set_share_access")) {
            permissions.add(Permission.CAN_SET_SHARE_ACCESS);
        }
    }

    return permissions;
}
 

private EnumSet<Permission> parsePermissions(JsonObject jsonObject) {
    EnumSet<Permission> permissions = EnumSet.noneOf(Permission.class);
    for (JsonObject.Member member : jsonObject) {
        JsonValue value = member.getValue();
        if (value.isNull() || !value.asBoolean()) {
            continue;
        }

        String memberName = member.getName();
        if (memberName.equals("can_download")) {
            permissions.add(Permission.CAN_DOWNLOAD);
        } else if (memberName.equals("can_upload")) {
            permissions.add(Permission.CAN_UPLOAD);
        } else if (memberName.equals("can_rename")) {
            permissions.add(Permission.CAN_RENAME);
        } else if (memberName.equals("can_delete")) {
            permissions.add(Permission.CAN_DELETE);
        } else if (memberName.equals("can_share")) {
            permissions.add(Permission.CAN_SHARE);
        } else if (memberName.equals("can_set_share_access")) {
            permissions.add(Permission.CAN_SET_SHARE_ACCESS);
        } else if (memberName.equals("can_preview")) {
            permissions.add(Permission.CAN_PREVIEW);
        } else if (memberName.equals("can_comment")) {
            permissions.add(Permission.CAN_COMMENT);
        }
    }

    return permissions;
}
 

@Override
public void onClick(View v) {
    Intent intent = new Intent();
    BoxFolder curFolder = getCurrentFolder();
    if (curFolder != null) {
        JsonObject jsonObject = curFolder.toJsonObject();
        JsonValue obj = jsonObject.get(BoxFolder.FIELD_ITEM_COLLECTION);
        if (obj != null && !obj.isNull()) {
            obj.asObject().set(BoxIterator.FIELD_ENTRIES, new JsonArray());
        }
        intent.putExtra(EXTRA_BOX_FOLDER, new BoxFolder(jsonObject));
    }
    setResult(RESULT_OK, intent);
    finish();
}
 

private static String getString(JsonObject root, String name) throws IOException {
    JsonValue jsv = root.get(name);
    if (jsv.isNull()) {
        throw new IOException(String.format("No %s value present in configuration file", name));
    }
    if (!jsv.isString()) {
        throw new IOException(String.format("Invalid value for %s, expected string", name));
    }
    return jsv.asString();
}
 

private static JsonArray getArray(JsonObject root, String name) throws IOException {
    JsonValue jsv = root.get(name);
    if (jsv.isNull()) {
        throw new IOException(String.format("No %s value present in configuration file", name));
    }
    if (!jsv.isArray()) {
        throw new IOException(String.format("Invalid value for %s, expected array", name));
    }
    return jsv.asArray();
}
 

public static Double getDouble(JsonValue value, String name) {
	JsonValue result = ((JsonObject) value).get(name);
	if (result == null || result.isNull()) {
		return null;
	}
	return result.asDouble();
}
 

private String toString(JsonValue jsonValue) {
    return jsonValue.isNull() ? null : jsonValue.asString();
}
 

private boolean toBoolean(JsonValue jsonValue) {
    return jsonValue.isNull() ? false : jsonValue.asBoolean();
}