com.todev.rabbitmqmanagement.data.network.serialization.UserTagsDeserializer.java Source code

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Here is the source code for com.todev.rabbitmqmanagement.data.network.serialization.UserTagsDeserializer.java

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/*
 * Copyright (c) 2016 to-dev.com.
 *
 * Licensed under the GNU GPL, Version 3 (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You may obtain a copy of the License at
 *
 *       https://www.gnu.org/licenses/gpl-3.0.html
 *
 * 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.todev.rabbitmqmanagement.data.network.serialization;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.todev.rabbitmqmanagement.data.network.model.user.User;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;

public class UserTagsDeserializer extends JsonDeserializer<List<User.Tag>> {
    @Override
    public List<User.Tag> deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
        String serialized = p.getText().trim();
        StringTokenizer tokenizer = new StringTokenizer(serialized, ",");
        List<User.Tag> result = new ArrayList<>();
        User.Tag tag = User.Tag.NONE;

        while (tokenizer.hasMoreElements()) {
            String token = tokenizer.nextToken();

            try {
                tag = User.Tag.valueOf(token.toUpperCase());
            } catch (IllegalArgumentException e) {
                // Leave none type as default.
            }

            if (!result.contains(tag)) {
                result.add(tag);
            }
        }

        return result;
    }
}