Add memory-based post database implementation.

[Sone.git] / src / main / java / net / pterodactylus / sone / database / memory / MemoryPost.java

diff --git a/src/main/java/net/pterodactylus/sone/database/memory/MemoryPost.java b/src/main/java/net/pterodactylus/sone/database/memory/MemoryPost.java
new file mode 100644 (file)
index 0000000..84f3714
--- /dev/null
+++ b/src/main/java/net/pterodactylus/sone/database/memory/MemoryPost.java
@@ -0,0 +1,186 @@
+/*
+ * Sone - PostImpl.java - Copyright © 2010–2013 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.database.memory;
+
+import java.util.UUID;
+
+import net.pterodactylus.sone.data.Post;
+import net.pterodactylus.sone.data.Sone;
+import net.pterodactylus.sone.database.SoneProvider;
+
+import com.google.common.base.Optional;
+
+/**
+ * A post is a short message that a user writes in his Sone to let other users
+ * know what is going on.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+class MemoryPost implements Post {
+
+       /** The post database. */
+       private final MemoryPostDatabase postDatabase;
+
+       /** The Sone provider. */
+       private final SoneProvider soneProvider;
+
+       /** The GUID of the post. */
+       private final UUID id;
+
+       /** The ID of the owning Sone. */
+       private final String soneId;
+
+       /** The ID of the recipient Sone. */
+       private final String recipientId;
+
+       /** The time of the post (in milliseconds since Jan 1, 1970 UTC). */
+       private final long time;
+
+       /** The text of the post. */
+       private final String text;
+
+       /**
+        * Creates a new post.
+        *
+        * @param postDatabase
+        *            The post database
+        * @param soneProvider
+        *            The Sone provider
+        * @param id
+        *            The ID of the post
+        * @param soneId
+        *            The ID of the Sone this post belongs to
+        * @param recipientId
+        *            The ID of the recipient of the post
+        * @param time
+        *            The time of the post (in milliseconds since Jan 1, 1970 UTC)
+        * @param text
+        *            The text of the post
+        */
+       public MemoryPost(MemoryPostDatabase postDatabase, SoneProvider soneProvider, String id, String soneId, String recipientId, long time, String text) {
+               this.postDatabase = postDatabase;
+               this.soneProvider = soneProvider;
+               this.id = UUID.fromString(id);
+               this.soneId = soneId;
+               this.recipientId = recipientId;
+               this.time = time;
+               this.text = text;
+       }
+
+       //
+       // ACCESSORS
+       //
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public String getId() {
+               return id.toString();
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public Sone getSone() {
+               return soneProvider.getSone(soneId).get();
+       }
+
+       /**
+        * {@inheritDocs}
+        */
+       @Override
+       public Optional<String> getRecipientId() {
+               return Optional.fromNullable(recipientId);
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public Optional<Sone> getRecipient() {
+               return soneProvider.getSone(recipientId);
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public long getTime() {
+               return time;
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public String getText() {
+               return text;
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public boolean isKnown() {
+               return postDatabase.isPostKnown(this);
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public MemoryPost setKnown(boolean known) {
+               postDatabase.setPostKnown(this, known);
+               return this;
+       }
+
+       //
+       // OBJECT METHODS
+       //
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public int hashCode() {
+               return id.hashCode();
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public boolean equals(Object object) {
+               if (!(object instanceof MemoryPost)) {
+                       return false;
+               }
+               MemoryPost post = (MemoryPost) object;
+               return post.id.equals(id);
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public String toString() {
+               return String.format("%s[id=%s,sone=%s,recipient=%s,time=%d,text=%s]", getClass().getName(), id, soneId, recipientId, time, text);
+       }
+
+}