com.pkrete.locationservice.admin.deserializers.TemplateJSONDeserializer.java Source code

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Here is the source code for com.pkrete.locationservice.admin.deserializers.TemplateJSONDeserializer.java

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/**
 * This file is part of Location Service :: Admin. Copyright (C) 2014 Petteri
 * Kivimki
 *
 * Location Service :: Admin is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * Location Service :: Admin is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * Location Service :: Admin. If not, see <http://www.gnu.org/licenses/>.
 */
package com.pkrete.locationservice.admin.deserializers;

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.ObjectCodec;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import com.pkrete.locationservice.admin.model.language.Language;
import com.pkrete.locationservice.admin.model.template.Template;
import com.pkrete.locationservice.admin.service.LanguagesService;
import com.pkrete.locationservice.admin.util.ApplicationContextUtils;
import java.io.IOException;

/**
 * Custom deserializer for Template objects.
 *
 * @author Petteri Kivimki
 */
public class TemplateJSONDeserializer extends JsonDeserializer<Template> {

    @Override
    public Template deserialize(JsonParser jsonParser, DeserializationContext deserializationContext)
            throws IOException {

        ObjectCodec oc = jsonParser.getCodec();
        JsonNode node = oc.readTree(jsonParser);
        // Parse id
        int id = node.get("id") == null ? 0 : node.get("id").intValue();
        // Parse filename
        String filename = node.get("filename") == null ? "" : node.get("filename").textValue();
        // Parse language id
        int languageId = node.get("language_id") == null ? 0 : node.get("language_id").intValue();
        // Parse contents
        String contents = node.get("contents") == null ? null : node.get("contents").textValue();
        // Get languagesService bean from Application Context
        LanguagesService languagesService = (LanguagesService) ApplicationContextUtils.getApplicationContext()
                .getBean("languagesService");
        // Initialize Language variable
        Language lang = null;
        // Get Language object if id is not 0
        if (languageId != 0) {
            // Get language object matching the given id
            lang = languagesService.getLanguageById(languageId);
        }
        // Return new Template
        return new Template(id, filename, "", lang, contents, null);
    }
}