io.gitee.huangguiming.Imcode.utils.GsonHelper Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of imsdk Show documentation
imsdk即时通讯快速开发
There is a newer version: 1.0.4
package io.gitee.huangguiming.Imcode.utils;

import com.google.common.collect.Lists;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;

import java.util.ArrayList;
import java.util.List;

public class GsonHelper {
    public static boolean isNull(JsonElement element) {
        return element == null || element.isJsonNull();
    }

    public static boolean isNotNull(JsonElement element) {
        return !isNull(element);
    }

    public static Long getLong(JsonObject json, String property) {
        return getAsLong(json.get(property));
    }

    public static long getPrimitiveLong(JsonObject json, String property) {
        return getAsPrimitiveLong(json.get(property));
    }

    public static Integer getInteger(JsonObject json, String property) {
        return getAsInteger(json.get(property));
    }

    public static int getPrimitiveInteger(JsonObject json, String property) {
        return getAsPrimitiveInt(json.get(property));
    }

    public static Double getDouble(JsonObject json, String property) {
        return getAsDouble(json.get(property));
    }

    public static double getPrimitiveDouble(JsonObject json, String property) {
        return getAsPrimitiveDouble(json.get(property));
    }

    public static Float getFloat(JsonObject json, String property) {
        return getAsFloat(json.get(property));
    }

    public static float getPrimitiveFloat(JsonObject json, String property) {
        return getAsPrimitiveFloat(json.get(property));
    }

    public static Boolean getBoolean(JsonObject json, String property) {
        return getAsBoolean(json.get(property));
    }

    public static String getString(JsonObject json, String property) {
        return getAsString(json.get(property));
    }

    public static String getAsString(JsonElement element) {
        return isNull(element) ? null : element.getAsString();
    }


    public static Long getAsLong(JsonElement element) {
        return isNull(element) ? null : element.getAsLong();
    }

    public static long getAsPrimitiveLong(JsonElement element) {
        Long r = getAsLong(element);
        return r == null ? 0L : r;
    }

    public static Integer getAsInteger(JsonElement element) {
        return isNull(element) ? null : element.getAsInt();
    }

    public static int getAsPrimitiveInt(JsonElement element) {
        Integer r = getAsInteger(element);
        return r == null ? 0 : r;
    }

    public static Boolean getAsBoolean(JsonElement element) {
        return isNull(element) ? null : element.getAsBoolean();
    }

    public static boolean getAsPrimitiveBool(JsonElement element) {
        Boolean r = getAsBoolean(element);
        return r != null && r;
    }

    public static Double getAsDouble(JsonElement element) {
        return isNull(element) ? null : element.getAsDouble();
    }

    public static double getAsPrimitiveDouble(JsonElement element) {
        Double r = getAsDouble(element);
        return r == null ? 0d : r;
    }

    public static Float getAsFloat(JsonElement element) {
        return isNull(element) ? null : element.getAsFloat();
    }

    public static float getAsPrimitiveFloat(JsonElement element) {
        Float r = getAsFloat(element);
        return r == null ? 0f : r;
    }

    public static Integer[] getIntArray(JsonObject o, String string) {
        JsonArray jsonArray = getAsJsonArray(o.getAsJsonArray(string));
        if (jsonArray == null) {
            return null;
        }

        List result = Lists.newArrayList();
        for (int i = 0; i < jsonArray.size(); i++) {
            result.add(jsonArray.get(i).getAsInt());
        }

        return result.toArray(new Integer[0]);
    }

    public static String[] getStringArray(JsonObject o, String string) {
        JsonArray jsonArray = getAsJsonArray(o.getAsJsonArray(string));
        if (jsonArray == null) {
            return null;
        }

        List result = Lists.newArrayList();
        for (int i = 0; i < jsonArray.size(); i++) {
            result.add(jsonArray.get(i).getAsString());
        }

        return result.toArray(new String[0]);
    }

    public static List getStringList(JsonObject o, String string) {
        JsonArray jsonArray = getAsJsonArray(o.getAsJsonArray(string));
        if (jsonArray == null) {
            return null;
        }

        List stringList = new ArrayList<>();
        for (int i=0;i < jsonArray.size();i++){
            JsonElement jsonElement = jsonArray.get(i);
            String json =  jsonElement.toString();
            String[] jsons = json.split(":");
            stringList.add(jsons[1].substring(0,jsons[1].lastIndexOf("}")));
        }
        return stringList;
    }

    public static Long[] getLongArray(JsonObject o, String string) {
        JsonArray jsonArray = getAsJsonArray(o.getAsJsonArray(string));
        if (jsonArray == null) {
            return null;
        }

        List result = Lists.newArrayList();
        for (int i = 0; i < jsonArray.size(); i++) {
            result.add(jsonArray.get(i).getAsLong());
        }

        return result.toArray(new Long[0]);
    }

    public static JsonArray getAsJsonArray(JsonElement element) {
        return element == null ? null : element.getAsJsonArray();
    }

    /**
     * 快速构建JsonObject对象，批量添加一堆属性
     *
     * @param keyOrValue 包含key或value的数组
     * @return JsonObject对象.
     */
    public static JsonObject buildJsonObject(Object... keyOrValue) {
        JsonObject result = new JsonObject();
        put(result, keyOrValue);
        return result;
    }

    /**
     * 批量向JsonObject对象中添加属性
     *
     * @param jsonObject 原始JsonObject对象
     * @param keyOrValue 包含key或value的数组
     */
    public static void put(JsonObject jsonObject, Object... keyOrValue) {
        if (keyOrValue.length % 2 == 1) {
            throw new RuntimeException("参数个数必须为偶数");
        }

        for (int i = 0; i < keyOrValue.length / 2; i++) {
            final Object key = keyOrValue[2 * i];
            final Object value = keyOrValue[2 * i + 1];
            if (value == null) {
                jsonObject.add(key.toString(), null);
                continue;
            }

            if (value instanceof Boolean) {
                jsonObject.addProperty(key.toString(), (Boolean) value);
            } else if (value instanceof Character) {
                jsonObject.addProperty(key.toString(), (Character) value);
            } else if (value instanceof Number) {
                jsonObject.addProperty(key.toString(), (Number) value);
            } else if (value instanceof JsonElement) {
                jsonObject.add(key.toString(), (JsonElement) value);
            } else if (value instanceof List) {
                JsonArray array = new JsonArray();
                ((List) value).forEach(a -> array.add(a.toString()));
                jsonObject.add(key.toString(), array);
            } else {
                jsonObject.add(key.toString(), IMGsonBuilder.create().toJsonTree(value));
            }
        }

    }
}