Interceptors.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 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.action;
 
import java.util.Map;
import org.turro.annotation.ElephantInterceptor;
import org.turro.collections.KeyValueMap;
import org.turro.elephant.context.Application;
import org.turro.elephant.context.IConstructor;
import org.turro.reflection.Instances;
import org.turro.string.Strings;
 
public class Interceptors {
 
  public static final String GOTO = "goto";
  
  /* Elephant Interceptor */
  
  public static boolean executeWeb(IConstructor constructor) {
    boolean done = false;
    KeyValueMap kvm = Parameters.from(constructor.getRequest().getParameterMap()).asMap();
    String goTo = kvm.get(GOTO);
    if(!Strings.isBlank(goTo)) {
      for(IInterceptor iInterceptor : Instances.cached().byAnnotation(ElephantInterceptor.class, IInterceptor.class)) {
        if(iInterceptor.executeWeb(constructor, goTo, kvm)) {
          done = true;
          break;
        }
      }
    }
    return done;
  }
 
  public static boolean executeApp(Application application, Map<String, String[]> parameterMap) {
    boolean done = false;
    KeyValueMap kvm = Parameters.from(parameterMap).asMap();
    String goTo = kvm.get(GOTO);
    if(!Strings.isBlank(goTo)) {
      for(IInterceptor iInterceptor : Instances.cached().byAnnotation(ElephantInterceptor.class, IInterceptor.class)) {
        if(iInterceptor.executeApp(application, goTo, kvm)) {
          done = true;
          break;
        }
      }
    }
    return done;
  }
 
  /* Utils */
  
  public static Parameters parameters(String root) {
    return Parameters.instance()
            .add(Interceptors.GOTO, root);
  }
  
  public static Parameters parameters(String root, String id) {
    return Parameters.instance()
            .add(Interceptors.GOTO, root)
            .add(root + "Id", id);
  }
  
  /* Factory */
  
  private Interceptors() {
  }
  
}