ProfilePolicies.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2021 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.contacts.profile;
 
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import org.turro.string.Strings;
import org.turro.contacts.BusinessRelation;
import org.turro.contacts.Contact;
import org.turro.contacts.ProfilePolicy;
import org.turro.contacts.db.ContactsPU;
import org.turro.elephant.db.WhereClause;
import org.turro.jpa.Dao;
 
public class ProfilePolicies {
  
  private final Contact contact;
  private final Set<ProfilePolicy> policies;
 
  public ProfilePolicies(Contact contact) {
    this.contact = contact;
    policies = new HashSet<>();
    load();
  }
  
  public void setPolicy(Object obj, String element, PublishPolicy publish) {
    ProfilePolicy pp = new ProfilePolicy();
    pp.setProfilePath(createPathFrom(obj, element));
    pp.setPublish(publish);
    if(policies.contains(pp)) policies.remove(pp);
    policies.add(pp);
  }
  
  public PublishPolicy getPolicy(Object obj, String element) {
    String entityPath = createPathFrom(obj, element);
    return policies.stream().filter(pp -> pp.getProfilePath().equals(entityPath))
            .map(pp -> pp.getPublish())
            .findFirst().orElse(getDefaultFor(element));
  }
  
  public void save() {
    Dao dao = new ContactsPU();
    removeFromContact(dao);
    dao.saveEntities(policies);
  }
  
  private void removeFromContact(Dao dao) {
    WhereClause wc = new WhereClause();
    wc.addClause("delete from ProfilePolicy");
    wc.addClause("where profilePath like concat(:path, '/%')");
    wc.addNamedValue("path", contactPath());
    dao.executeUpdate(wc);
  }
  
  private PublishPolicy getDefaultFor(String element) {
    return Arrays.asList("position", "dates").contains(element) ? 
            PublishPolicy.PUBLISH_USERS : PublishPolicy.PUBLISH_FOLLOWING;
  }
 
  /* Path helpers */
 
  private String createPathFrom(Object obj, String element) {
    String path = contactPath();
    if(obj instanceof BusinessRelation) {
      path += "/relation/" + ((BusinessRelation) obj).getId();
    } else if(obj instanceof ProfileRelation) {
      path += "/relation/" + ((ProfileRelation) obj).getRelation().getId();
    }
    return path + "/" + Strings.isBlank(element, "");
  }
 
  private String contactPath() {
    return "/contact/" + contact.getId();
  }
 
  /* Init */
  
  private void load() {
    Dao dao = new ContactsPU();
    WhereClause wc = new WhereClause();
    wc.addClause("select p from ProfilePolicy p");
    wc.addClause("where p.profilePath like concat(:path, '/%')");
    wc.addNamedValue("path", contactPath());
    for(ProfilePolicy pp : dao.getResultList(ProfilePolicy.class, wc)) {
      policies.add(pp);
    }
  }
 
}