src/main/java/net/pterodactylus/sone/data/impl/AbstractSoneBuilder.java

   1 package net.pterodactylus.sone.data.impl;
   2
   3 import static com.google.common.base.Preconditions.checkState;
   4
   5 import java.util.Collection;
   6 import java.util.HashSet;
   7
   8 import net.pterodactylus.sone.data.Client;
   9 import net.pterodactylus.sone.data.Post;
  10 import net.pterodactylus.sone.data.PostReply;
  11 import net.pterodactylus.sone.database.SoneBuilder;
  12 import net.pterodactylus.sone.freenet.wot.Identity;
  13 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  14
  15 /**
  16  * Abstract {@link SoneBuilder} implementation.
  17  *
  18  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  19  */
  20 public abstract class AbstractSoneBuilder implements SoneBuilder {
  21
  22         protected Identity identity;
  23         protected long lastUpdated;
  24         protected Client client;
  25         protected final Collection<Post> posts = new HashSet<Post>();
  26         protected final Collection<PostReply> postReplies = new HashSet<PostReply>();
  27
  28         @Override
  29         public SoneBuilder from(Identity identity) {
  30                 this.identity = identity;
  31                 return this;
  32         }
  33
  34         @Override
  35         public SoneBuilder lastUpdated(long lastUpdated) {
  36                 this.lastUpdated = lastUpdated;
  37                 return this;
  38         }
  39
  40         @Override
  41         public SoneBuilder using(Client client) {
  42                 this.client = client;
  43                 return this;
  44         }
  45
  46         @Override
  47         public SoneBuilder withPosts(Collection<Post> posts) {
  48                 this.posts.clear();
  49                 this.posts.addAll(posts);
  50                 return this;
  51         }
  52
  53         @Override
  54         public SoneBuilder withPostReplies(Collection<PostReply> postReplies) {
  55                 this.postReplies.clear();
  56                 this.postReplies.addAll(postReplies);
  57                 return this;
  58         }
  59
  60         protected void validate() throws IllegalStateException {
  61                 checkState(identity != null, "identity must not be null");
  62                 checkState(lastUpdated > 0, "last update time must be set");
  63                 checkState(client != null, "client must not be null");
  64         }
  65
  66         protected void validateLocal() throws IllegalStateException {
  67                 validate();
  68                 checkState(identity instanceof OwnIdentity,
  69                                 "identity must be an own identity for a local Sone");
  70         }
  71
  72 }