com.birbit.jsonapi.JsonApiLinksDeserializer.java Source code

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Here is the source code for com.birbit.jsonapi.JsonApiLinksDeserializer.java

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/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.birbit.jsonapi;

import com.google.gson.*;

import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

@SuppressWarnings("WeakerAccess")
public class JsonApiLinksDeserializer implements JsonDeserializer<JsonApiLinks> {
    public static final JsonApiLinksDeserializer INSTANCE = new JsonApiLinksDeserializer();

    private JsonApiLinksDeserializer() {
    }

    @Override
    public JsonApiLinks deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context)
            throws JsonParseException {
        if (!json.isJsonObject()) {
            throw new JsonParseException("JsonApiLinks json element must be an object");
        }
        JsonObject asJsonObject = json.getAsJsonObject();
        Set<Map.Entry<String, JsonElement>> entries = asJsonObject.entrySet();
        if (entries.isEmpty()) {
            return JsonApiLinks.EMPTY;
        }
        Map<String, JsonApiLinkItem> result = new HashMap<String, JsonApiLinkItem>();
        for (Map.Entry<String, JsonElement> entry : asJsonObject.entrySet()) {
            JsonElement value = entry.getValue();
            if (value.isJsonPrimitive()) {
                result.put(entry.getKey(), new JsonApiLinkItem(entry.getValue().getAsString()));
            } else {
                result.put(entry.getKey(),
                        context.<JsonApiLinkItem>deserialize(entry.getValue(), JsonApiLinkItem.class));
            }
        }
        return new JsonApiLinks(result);
    }
}