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 boolean local;
  24         protected long lastUpdated;
  25         protected Client client;
  26         protected final Collection<Post> posts = new HashSet<Post>();
  27         protected final Collection<PostReply> postReplies = new HashSet<PostReply>();
  28
  29         @Override
  30         public SoneBuilder from(Identity identity) {
  31                 this.identity = identity;
  32                 return this;
  33         }
  34
  35         @Override
  36         public SoneBuilder local() {
  37                 this.local = true;
  38                 return this;
  39         }
  40
  41         @Override
  42         public SoneBuilder lastUpdated(long lastUpdated) {
  43                 this.lastUpdated = lastUpdated;
  44                 return this;
  45         }
  46
  47         @Override
  48         public SoneBuilder using(Client client) {
  49                 this.client = client;
  50                 return this;
  51         }
  52
  53         @Override
  54         public SoneBuilder withPosts(Collection<Post> posts) {
  55                 this.posts.clear();
  56                 this.posts.addAll(posts);
  57                 return this;
  58         }
  59
  60         @Override
  61         public SoneBuilder withPostReplies(Collection<PostReply> postReplies) {
  62                 this.postReplies.clear();
  63                 this.postReplies.addAll(postReplies);
  64                 return this;
  65         }
  66
  67         protected void validate() throws IllegalStateException {
  68                 checkState(identity != null, "identity must not be null");
  69                 checkState(!local || (identity instanceof OwnIdentity),
  70                                 "can not create local Sone from remote identity");
  71                 checkState(lastUpdated > 0, "last update time must be set");
  72                 checkState(client != null, "client must not be null");
  73         }
  74
  75 }