From ce88de4891b87c3b7b2750575e15d6e48d518852 Mon Sep 17 00:00:00 2001
From: hxb <hxb@hdlchina.com.cn>
Date: 星期四, 24 十月 2024 10:39:12 +0800
Subject: [PATCH] 增加云端库

---
 HDLLinkPMSdk/src/main/java/com/hdl/linkpm/sdk/template/GsonUtils.java |  243 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 243 insertions(+), 0 deletions(-)

diff --git a/HDLLinkPMSdk/src/main/java/com/hdl/linkpm/sdk/template/GsonUtils.java b/HDLLinkPMSdk/src/main/java/com/hdl/linkpm/sdk/template/GsonUtils.java
new file mode 100644
index 0000000..80d83e0
--- /dev/null
+++ b/HDLLinkPMSdk/src/main/java/com/hdl/linkpm/sdk/template/GsonUtils.java
@@ -0,0 +1,243 @@
+package com.hdl.linkpm.sdk.template;
+
+import androidx.annotation.NonNull;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParseException;
+import com.google.gson.JsonPrimitive;
+import com.google.gson.JsonSerializationContext;
+import com.google.gson.JsonSerializer;
+import com.google.gson.JsonSyntaxException;
+import com.google.gson.TypeAdapter;
+import com.google.gson.TypeAdapterFactory;
+import com.google.gson.reflect.TypeToken;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonToken;
+import com.google.gson.stream.JsonWriter;
+
+import java.io.IOException;
+import java.lang.reflect.Type;
+
+/**
+ * Created by Tong on 2021/11/10.
+ */
+public class GsonUtils {
+
+    private static Gson gson;
+
+    public static <T> T copy(Object o, Class<T> type) {
+        return copy(o, TypeToken.get(type));
+    }
+
+    public static <T> T copy(Object o, TypeToken<T> type) {
+        return copy(o, type.getType());
+    }
+
+    public static <T> T copy(Object o, Type type) {
+        try {
+            Gson gson = getGson();
+            return gson.fromJson(gson.toJson(o), type);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+
+    public static <T> T fromJson(String json, Type type) {
+        try {
+            Gson gson = getGson();
+            return gson.fromJson(json, type);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static <T> T fromJson(String json, Class<T> type) {
+        try {
+            Gson gson = getGson();
+            return gson.fromJson(json, type);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static <T> T fromJson(String json) {
+        try {
+            Gson gson = getGson();
+            return gson.fromJson(json, new TypeToken<T>() {
+            }.getType());
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+
+    public static String toJson(Object object) {
+        try {
+            return getGson().toJson(object);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public static JsonArray toJsonArray(Object object) {
+        try {
+            return GsonUtils.fromJson(GsonUtils.toJson(object), new TypeToken<JsonArray>() {
+            }.getType());
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+
+    public static Type getType(@NonNull final Type rawType, @NonNull final Type... typeArguments) {
+        return TypeToken.getParameterized(rawType, typeArguments).getType();
+    }
+
+
+    public static Gson getGson() {
+        if (gson == null) {
+            gson = new GsonBuilder()
+                    .disableHtmlEscaping()
+                    .registerTypeAdapterFactory(new NullStringToEmptyAdapterFactory())
+                    .registerTypeAdapter(String.class, new StringAdapter())
+                    .registerTypeAdapter(Integer.class, new IntegerDefaultAdapter())
+                    .registerTypeAdapter(Double.class, new DoubleDefaultAdapter())
+                    .registerTypeAdapter(Long.class, new LongDefaultAdapter())
+                    .create();
+        }
+        return gson;
+    }
+
+    private static class StringAdapter implements JsonSerializer<String>, JsonDeserializer<String> {
+        @Override
+        public String deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
+                throws JsonParseException {
+            if (json instanceof JsonPrimitive) {
+                return json.getAsString();
+            } else {
+                return json.toString();
+            }
+        }
+
+        @Override
+        public JsonElement serialize(String src, Type typeOfSrc, JsonSerializationContext context) {
+            return new JsonPrimitive(src);
+        }
+    }
+
+
+    private static class IntegerDefaultAdapter implements JsonSerializer<Integer>, JsonDeserializer<Integer> {
+        @Override
+        public Integer deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
+                throws JsonParseException {
+            try {
+                if (json.getAsString().equals("") || json.getAsString().equals("null")) {
+                    return 0;
+                }
+            } catch (Exception ignore) {
+            }
+            try {
+                return json.getAsInt();
+            } catch (NumberFormatException e) {
+                throw new JsonSyntaxException(e);
+            }
+        }
+
+        @Override
+        public JsonElement serialize(Integer src, Type typeOfSrc, JsonSerializationContext context) {
+            return new JsonPrimitive(src);
+        }
+    }
+
+    private static class DoubleDefaultAdapter implements JsonSerializer<Double>, JsonDeserializer<Double> {
+        @Override
+        public Double deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
+            try {
+                if (json.getAsString().equals("") || json.getAsString().equals("null")) {
+                    return 0.00;
+                }
+            } catch (Exception ignore) {
+            }
+            try {
+                return json.getAsDouble();
+            } catch (NumberFormatException e) {
+                throw new JsonSyntaxException(e);
+            }
+        }
+
+        @Override
+        public JsonElement serialize(Double src, Type typeOfSrc, JsonSerializationContext context) {
+            return new JsonPrimitive(src);
+        }
+    }
+
+    private static class LongDefaultAdapter implements JsonSerializer<Long>, JsonDeserializer<Long> {
+        @Override
+        public Long deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
+                throws JsonParseException {
+            try {
+                if (json.getAsString().equals("") || json.getAsString().equals("null")) {
+                    return 0L;
+                }
+            } catch (Exception ignore) {
+            }
+            try {
+                return json.getAsLong();
+            } catch (NumberFormatException e) {
+                throw new JsonSyntaxException(e);
+            }
+        }
+
+        @Override
+        public JsonElement serialize(Long src, Type typeOfSrc, JsonSerializationContext context) {
+            return new JsonPrimitive(src);
+        }
+    }
+
+    private static class NullStringToEmptyAdapterFactory implements TypeAdapterFactory {
+
+        public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
+            Class<T> rawType = (Class<T>) type.getRawType();
+            if (rawType != String.class) {
+                return null;
+            }
+            return (TypeAdapter<T>) new StringNullAdapter();
+        }
+    }
+
+    public static class StringNullAdapter extends TypeAdapter<String> {
+
+        @Override
+        public String read(JsonReader reader) throws IOException {
+            if (reader.peek() == JsonToken.NULL) {
+                reader.nextNull();
+                return "";
+            }
+            return reader.nextString();
+        }
+
+        @Override
+        public void write(JsonWriter writer, String value) throws IOException {
+            if (value == null) {
+                writer.nullValue();
+                return;
+            }
+            writer.value(value);
+        }
+
+    }
+
+
+}

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