com.heroiclabs.sdk.android.util.json.MessageJsonDeserializer.java Source code

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Here is the source code for com.heroiclabs.sdk.android.util.json.MessageJsonDeserializer.java

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/*
 * Copyright 2016 Heroic Labs
 *
 * 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.heroiclabs.sdk.android.util.json;

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.heroiclabs.sdk.android.entity.Message;
import com.heroiclabs.sdk.android.util.Codec;

import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;

import lombok.AllArgsConstructor;
import lombok.NonNull;

/**
 * Gson JsonDeserializer implementation for Message entities.
 */
@AllArgsConstructor(suppressConstructorProperties = true)
public class MessageJsonDeserializer implements JsonDeserializer<Message> {

    /** A reference to the parent codec. */
    private final Codec codec;

    /** {@inheritDoc} */
    @Override
    public Message deserialize(final @NonNull JsonElement json, final @NonNull Type typeOfT,
            final @NonNull JsonDeserializationContext context) throws JsonParseException {
        final JsonObject object = json.getAsJsonObject();
        final String messageId = object.get("message_id").getAsString();
        final List<String> tags;
        if (object.get("tags").isJsonNull()) {
            tags = null;
        } else {
            tags = new ArrayList<>();
            for (final JsonElement tag : object.getAsJsonArray("tags")) {
                tags.add(tag.getAsString());
            }
        }
        final String subject = object.get("subject").getAsString();
        final long createdAt = object.get("created_at").getAsLong();
        final long expiresAt = object.get("expires_at").getAsLong();
        final Long readAt = JsonDeserializerUtils.extractAsLong(object, "read_at");
        final String body = JsonDeserializerUtils.extractAsString(object, "body");

        return new Message(messageId, tags, subject, createdAt, expiresAt, readAt, body, codec);
    }

}