From 9a727406f8647dffc6598ed11b7cc7bef82b38c5 Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20=E2=80=98Bombe=E2=80=99=20Roden?=
 <bombe@pterodactylus.net>
Date: Thu, 14 Oct 2010 14:03:03 +0200
Subject: [PATCH] Use a more generic Shell-aware cache.

---
 .../net/pterodactylus/sone/core/PostCache.java     | 66 ----------------------
 .../net/pterodactylus/sone/data/ShellCache.java    | 64 +++++++++++++++++++++
 2 files changed, 64 insertions(+), 66 deletions(-)
 delete mode 100644 src/main/java/net/pterodactylus/sone/core/PostCache.java
 create mode 100644 src/main/java/net/pterodactylus/sone/data/ShellCache.java

diff --git a/src/main/java/net/pterodactylus/sone/core/PostCache.java b/src/main/java/net/pterodactylus/sone/core/PostCache.java
deleted file mode 100644
index 5f830ad..0000000
--- a/src/main/java/net/pterodactylus/sone/core/PostCache.java
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Sone - PostCache.java - Copyright © 2010 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.core;
-
-import java.util.HashMap;
-import java.util.Map;
-
-import net.pterodactylus.sone.data.Post;
-import net.pterodactylus.sone.data.PostShell;
-import net.pterodactylus.sone.data.Shell;
-
-/**
- * {@link Shell}-aware {@link Map} from post IDs to {@link Post}s that exchanges
- * an existing {@link Shell} against the real object once it’s available.
- *
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
- */
-public class PostCache {
-
-	/** The posts. */
-	private final Map<String, Post> posts = new HashMap<String, Post>();
-
-	/**
-	 * Stores the given post in this cache. If the given post is not a
-	 * {@link Shell}, it is stored. If it is a {@link Shell} it is only stored
-	 * if there is no post stored for the ID of the given post. If the given
-	 * {@code post} is a {@link Shell}, it needs to have its
-	 * {@link PostShell#setId(java.util.UUID) ID} set!
-	 *
-	 * @param post
-	 *            The post to store
-	 */
-	public void store(Post post) {
-		if (!(post instanceof Shell<?>) || !posts.containsKey(post.getId())) {
-			posts.put(post.getId(), post);
-		}
-	}
-
-	/**
-	 * Returns the post with the given ID.
-	 *
-	 * @param id
-	 *            The ID of the post
-	 * @return The post with the given ID, or {@code null} if there is no post
-	 *         with the given ID
-	 */
-	public Post get(String id) {
-		return posts.get(id);
-	}
-
-}
diff --git a/src/main/java/net/pterodactylus/sone/data/ShellCache.java b/src/main/java/net/pterodactylus/sone/data/ShellCache.java
new file mode 100644
index 0000000..9da9a06
--- /dev/null
+++ b/src/main/java/net/pterodactylus/sone/data/ShellCache.java
@@ -0,0 +1,64 @@
+/*
+ * Sone - ShellCache.java - Copyright © 2010 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.data;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * {@link Shell}-aware cache that will replace {@link Shell}s with the real
+ * objects but not the other way around.
+ *
+ * @param <T>
+ *            The type of the cached objects
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class ShellCache<T> {
+
+	/** The object cache. */
+	private final Map<String, T> cache = new HashMap<String, T>();
+
+	/**
+	 * Stores the given object in this cache. If the given object is not a
+	 * {@link Shell}, it is stored. If it is a {@link Shell} it is only stored
+	 * if there is no object stored for the given ID.
+	 *
+	 * @param id
+	 *            The ID of the object
+	 * @param object
+	 *            The object to store
+	 */
+	public void put(String id, T object) {
+		if (!(object instanceof Shell<?>) || !cache.containsKey(id)) {
+			cache.put(id, object);
+		}
+	}
+
+	/**
+	 * Returns the post with the given ID.
+	 *
+	 * @param id
+	 *            The ID of the post
+	 * @return The post with the given ID, or {@code null} if there is no post
+	 *         with the given ID
+	 */
+	public T get(String id) {
+		return cache.get(id);
+	}
+
+}
-- 
2.7.4