ElephantEntities.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2018 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.io.File;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.amic.util.date.DateFormats;
import org.turro.action.LinkType;
import org.turro.string.Strings;
import org.turro.annotation.ElephantEntity;
import org.turro.collections.KeyValueMap;
import org.turro.elephant.db.ElephantPU;
import org.turro.elephant.db.WhereClause;
import org.turro.elephant.entities.db.EntityParticipation;
import org.turro.elephant.entities.db.EntityParticipationPK;
import org.turro.elephant.entities.db.Poll;
import org.turro.elephant.entities.db.Post;
import org.turro.elephant.entities.db.Sendable;
import org.turro.elephant.entities.db.Topic;
import org.turro.i18n.I_;
import org.turro.jpa.Dao;
import org.turro.path.Path;
import org.turro.plugin.contacts.IContact;
 
@ElephantEntity
public class ElephantEntities extends DefaultElephantEntity {
 
  public ElephantEntities() {
  }
 
  public ElephantEntities(String entityPath) {
    super(entityPath);
  }
 
  public ElephantEntities(Object entity) {
    super(entity);
  }
 
  @Override
  public Object getEntity() {
    if(entity == null) {
      if(getPath() != null) {
        if(path.getSize() == 2) {
          if(null != path.getRoot()) switch (path.getRoot()) {
            case "sendable":
              if(isValidLongEntity()) {
                entity = getDao().find(Sendable.class, path.getFrom(1));
              }
              break;                
            case "poll":
              if(isValidLongEntity()) {
                entity = getDao().find(Poll.class, path.getNodeAs(1, Long.class));
              }
              break;                
            case "topic":
              if(isValidLongEntity()) {
                entity = getDao().find(Topic.class, path.getNodeAs(1, Long.class));
              }
              break;                
            case "post":
              if(isValidLongEntity()) {
                entity = getDao().find(Post.class, path.getNodeAs(1, Long.class));
              }
              break;                
            default:
              break;
          }
        }
      }
    }
    return entity;
  }
 
  @Override
  public String getName() {
    if(getEntity() != null) {
      if(entity instanceof Sendable) {
        return DateFormats.format(
                ((Sendable) entity).getSchedule(),
                DateFormat.SHORT, DateFormat.SHORT, 
                I_.api().used());
      } else if(entity instanceof Poll) {
        return ((Poll) entity).getTitle();
      } else if(entity instanceof Topic) {
        return ((Topic) entity).getText();
      } else if(entity instanceof Post) {
        return ((Post) entity).getText();
      }
    }
    return null;
  }
 
  @Override
  public String getLabel() {
    if(getPath() != null) {
      String root = path.getRoot();
      if(null != root) switch (root) {
        case "sendable":
          return I_.get("Sendable");
        case "poll":
          return I_.get("Poll");
        case "topic":
          return I_.get("Topic");
        case "post":
          return I_.get("Post");
        default:
          break;
      }
    }
    return null;
  }
 
  @Override
  public String getDescription() {
    return null;
  }
 
  @Override
  public Object getLabelCtrl() {
    return null;
  }
 
  @Override
  public String getImage() {
    if(getPath() != null) {
      String root = path.getRoot();
      if(null != root) switch (root) {
        case "sendable":
          return "/_zul/images/mail_queue.png";
        case "poll":
          return "/_zul/images/poll.png";
        case "topic":
          return "/_zul/images/topic.png";
        case "post":
          return "/_zul/images/topic.png";
        default:
          break;
      }
    }
    return null;
  }
 
  @Override
  public String getHierarchicalPath() {
    if(getEntity() != null) {
      if(entity instanceof Poll) {
        IElephantEntity iee = ((Poll) entity).getEntity();
        String hp = iee.getHierarchicalPath();
        return (Strings.isBlank(hp) ? "" : hp + PATH_SEPARATOR) + getPath();
      } else if(entity instanceof Topic) {
        IElephantEntity iee = ((Topic) entity).getEntity();
        String hp = iee.getHierarchicalPath();
        return (Strings.isBlank(hp) ? "" : hp + PATH_SEPARATOR) + getPath();
      } else if(entity instanceof Post) {
        IElephantEntity iee = ((Post) entity).getTopic().getEntity();
        String hp = iee.getHierarchicalPath();
        return (Strings.isBlank(hp) ? "" : hp + PATH_SEPARATOR) + getPath();
      }
    }
    return getPath();
  }
 
  @Override
  public IElephantEntity getParent() {
    if(getEntity() != null) {
      if(entity instanceof Sendable) {
        return (IElephantEntity) ((Sendable) entity).getEntity();
      } else if(entity instanceof Poll) {
        return ((Poll) entity).getEntity();
      } else if(entity instanceof Topic) {
        return ((Topic) entity).getEntity();
      } else if(entity instanceof Post) {
        return Entities.getController(((Post) entity).getParentTopic());
      }
    }
    return null;
  }
 
  @Override
  public List<IElephantEntity> getChildren() {
    if(getEntity() != null) {
      if(entity instanceof Topic) {
        return new EntityListAdapter(((Topic) entity).getPosts());
      } else if(entity instanceof Post) {
        return new EntityListAdapter(((Post) entity).getPosts());
      }
    }
    return Collections.EMPTY_LIST;
  }
 
  @Override
  public String getExtendedPath() {
    return null;
  }
 
  @Override
  public File getFile() {
    return null;
  }
 
  @Override
  public boolean showPath() {
    return false;
  }
 
  @Override
  public boolean showEntity() {
    return false;
  }
 
  @Override
  public boolean canEdit(IContact contact) {
    return false;
  }
 
  @Override
  public boolean canPublish(IContact contact) {
    if(getEntity() != null) {
      if(entity instanceof Poll) {
        return ((Poll) entity).isParticipant(contact);
      }
    }
    return false;
  }
 
  @Override
  public Collection getEntitites(String search, int maxResults, KeyValueMap kvm) {
    ArrayList<Object> list = new ArrayList<>();
    list.addAll(searchPolls(search, maxResults, kvm));
    return list;
  }
 
  @Override
  public Collection getEntitites(String root, String search, int maxResults, KeyValueMap kvm) {
    ArrayList<Object> list = new ArrayList<>();
    if(null != root) switch (root) {
      case "poll":
        list.addAll(searchPolls(search, maxResults, kvm));
        break;
      default:
        break;
    }
    return list;
  }
 
  @Override
  public Object configureCtrl(Object ctrl, IContact contact) {
    return ctrl;
  }
 
  @Override
  public boolean canShowInContext(IContact contact, Object relatedEntity) {
    return true;
  }
 
  @Override
  public String getExtendedWebPath() {
    if(getEntity() != null) {
      if(entity instanceof Poll) {
        Poll poll = (Poll) entity;
        return "/" + poll.getId() + 
                "/" + Strings.unpunctuate(poll.getTitle()).toLowerCase();
      }
    }
    return null;
  }
 
  @Override
  public String getUserContext() {
    getPath();
    if(path.getRoot().equals("poll")) {
      return "/user/mypolls";
    }
    if(path.getRoot().equals("topic")) {
      return "/user/forums";
    }
    return null;
  }
 
  @Override
  protected Dao createDao() {
    return new ElephantPU();
  }
 
  @Override
  protected boolean itsMine(Object entity) {
    return (entity instanceof Sendable) || (entity instanceof Poll) ||
           (entity instanceof Topic) || (entity instanceof Post);
  }
 
  @Override
  public Collection<String> getAllowedRoots() {
    return Arrays.asList("sendable", "poll", "topic", "post");
  }
 
  @Override
  protected IElephantEntity createInstance(String entityPath) {
    return new ElephantEntities(entityPath);
  }
 
  @Override
  protected IElephantEntity createInstance(Object entity) {
    return new ElephantEntities(entity);
  }
 
  @Override
  protected Path createPath() {
    return new Path(ElephantPU.getObjectPath(entity));
  }
 
  @Override
  public Object getObject(Path entityPath) {
    if("entity-participation".equals(entityPath.getRoot())) {
      return getDao().find(EntityParticipation.class, EntityParticipationPK.from(entityPath.getComplex(1)));
    }
    return null;
  }
 
  private List<Object> searchPolls(String search, int maxResults, KeyValueMap kvm) {
    WhereClause wc = new WhereClause();
    wc.addClause("select p from Poll p");
    wc.addClause("where p.title like :search");
    wc.addClause("order by p.title");
    wc.addNamedValue("search", "%" + search + "%");
    return getDao().getResultList(wc, maxResults);
  }
 
  @Override
  public String getEntityUrl(LinkType type, String contextPath) {
    if("post".equals(getRoot())) {
      return getParent().getEntityUrl(type, contextPath);
    }
    return super.getEntityUrl(type, contextPath);
  }
  
}