AbstractSnippet.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2022 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.elephant.snippet;
 
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Optional;
import org.turro.collections.KeyValueMap;
import org.turro.elephant.context.Application;
import org.turro.http.Respond;
import org.turro.json.Jsons;
 
public abstract class AbstractSnippet implements ISnippetService {
 
  @Override
  public void process(Application application, KeyValueMap map) {
    doProcess(application, map);
  }
 
  protected Optional<Jsons> getJson(KeyValueMap map) {
    return map.containsKey(Snippets.JSONPAR) ?
            Optional.ofNullable(Jsons.read(map.get(Snippets.JSONPAR))) : 
            Optional.empty();
  }
  
  protected void writeResponse(Application application, String response) throws IOException {
    Respond.to(application.getHttpServletResponse()).flushJson(response, StandardCharsets.UTF_8);
  }
  
  protected abstract void doProcess(Application application, KeyValueMap map);
  
}