Entities.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2017 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.entities;
 
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;
import org.turro.string.Strings;
import org.turro.annotation.ElephantEntity;
import org.turro.collections.KeyValueMap;
import org.turro.path.Path;
import org.turro.plugin.contacts.IContact;
import org.turro.reflection.Instances;
 
public class Entities {
 
  final static private EmptyController empty = new EmptyController();
  
  /* Simple objects */
  
  public static Object getObject(String path) {
    if(!Strings.isBlank(path)) {
      Path entityPath = Path.pathFrom(path);
      for(IElephantEntity iElEntity : Instances.cached().byAnnotation(ElephantEntity.class, IElephantEntity.class)) {
        IElephantEntity ei = iElEntity.getController(path);
        if(ei != null) {
          return ei.getEntity();
        }
        Object obj = iElEntity.getObject(entityPath);
        if(obj != null) {
          return obj;
        }
      }
    }
    return null;
  }
  
  public static IElephantEntity getMainEntity(Object entity) {
    if(entity != null) {
      for(IElephantEntity iElEntity : Instances.cached().byAnnotation(ElephantEntity.class, IElephantEntity.class)) {
        IElephantEntity ei = iElEntity.getMain(entity);
        if(ei != null) {
          return ei;
        }
      }
    }
    return null;
  }
  
  /* External Actions */
  
  public static IElephantEntity emptyController() {
    return empty;
  }
  
  public static IElephantEntity getController(String path) {
    if(!Strings.isBlank(path)) {
      for(IElephantEntity iElEntity : Instances.cached().byAnnotation(ElephantEntity.class, IElephantEntity.class)) {
        IElephantEntity ei = iElEntity.getController(path);
        if(ei != null) {
          return ei;
        }
      }
    }
    return empty;
  }
 
  public static IElephantEntity getController(Object entity) {
    if(entity instanceof String) {
      return getController((String) entity);
    } else if(entity instanceof Path) {
      return getController(((Path) entity).getPath());
    } else if(entity != null) {
      for(IElephantEntity iElEntity : Instances.cached().byAnnotation(ElephantEntity.class, IElephantEntity.class)) {
        IElephantEntity ei = iElEntity.getController(entity);
        if(ei != null) {
          return ei;
        }
      }
    }
    return empty;
  }
 
  public static Collection<Object> getEntities(String search, int maxResults) {
    return getEntities(search, maxResults, null);
  }
 
  public static Collection<Object> getEntities(String root, String search, int maxResults) {
    return getEntities(root, search, maxResults, null);
  }
 
  public static Collection<Object> getEntities(String search, int maxResults, KeyValueMap kvm) {
    if(kvm == null) { kvm = new KeyValueMap(new HashMap()); }
    ArrayList<Object> list = new ArrayList<>();
    if(!Strings.isBlank(search)) {
      for(IElephantEntity iElEntity : Instances.cached().byAnnotation(ElephantEntity.class, IElephantEntity.class)) {
        list.addAll(iElEntity.getEntitites(search, maxResults, kvm));
      }
    }
    return list;
  }
 
  public static Collection<Object> getEntities(String root, String search, int maxResults, KeyValueMap kvm) {
    if(kvm == null) { kvm = new KeyValueMap(new HashMap()); }
    ArrayList<Object> list = new ArrayList<>();
    if(!Strings.isBlank(search)) {
      for(IElephantEntity iElEntity : Instances.cached().byAnnotation(ElephantEntity.class, IElephantEntity.class)) {
        for(String entityRoot : Strings.csvToList(root)) {
          list.addAll(iElEntity.getEntitites(entityRoot, search, maxResults, kvm));
        }
      }
    }
    return list;
  }
 
  /* Roles */
 
  public static Object getSingleRelatedByRole(EntityRole role, IContact contact) {
    Collection<Object> list = Entities.getRelatedByRole(role, contact);
    if(!list.isEmpty()) {
      return list.stream().findFirst().get();
    }
    return null;
  }
  
  public static Collection<Object> getRelatedByRole(EntityRole role, IContact contact) {
    ArrayList<Object> list = new ArrayList<>();
    Instances.cached().byAnnotation(ElephantEntity.class, IElephantEntity.class).forEach((iElEntity) -> {
      list.addAll(iElEntity.getRelatedByRole(role, contact));
    });
    return list;
  }
  
  public static boolean hasRelatedRole(EntityRole role, IContact contact) {
    return Instances.cached().byAnnotation(ElephantEntity.class, IElephantEntity.class)
            .stream().map((iElEntity) -> iElEntity.hasRelatedRole(role, contact)).anyMatch((has) -> (has));
  }
  
  /* EntityPath utils */
  
  public static Set<String> getEntityPaths(Collection entitites) {
    HashSet<String> set = new HashSet<>();
    for(Object entity : entitites) {
      String path = Entities.getController(entity).getPath();
      if(!Strings.isBlank(path)) {
        set.add(path);
      }
    }
    return set;
  }
  
  public static Set<String> getEntityPaths(Object[] entitites) {
    HashSet<String> set = new HashSet<>();
    for(Object entity : entitites) {
      String path = Entities.getController(entity).getPath();
      if(!Strings.isBlank(path)) {
        set.add(path);
      }
    }
    return set;
  }
  
  public static Set<String> getEntityPaths(Object entity) {
    HashSet<String> set = new HashSet<>();
    String path = Entities.getController(entity).getPath();
    if(!Strings.isBlank(path)) {
      set.add(path);
    }
    return set;
  }
  
  public static Set<String> getAllowedRoots() {
    HashSet<String> set = new HashSet<>();
    for(IElephantEntity iElEntity : Instances.cached().byAnnotation(ElephantEntity.class, IElephantEntity.class)) {
      set.addAll(iElEntity.getAllowedRoots());
    }
    return set;
  }
  
  /* Entities */
  
  private Entities() {
  }
 
}