/*
- * Sone - Reply.java - Copyright © 2010 David Roden
+ * Sone - Reply.java - Copyright © 2011–2012 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
package net.pterodactylus.sone.data;
+import java.util.Comparator;
import java.util.UUID;
+import net.pterodactylus.util.filter.Filter;
+
/**
- * A reply is like a {@link Post} but can never be posted on its own, it always
- * refers to another {@link Post}.
+ * Abstract base class for all replies.
*
+ * @param <T>
+ * The type of the reply
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
-public class Reply {
+public abstract class Reply<T extends Reply<T>> {
- /** The ID of the reply. */
- private final UUID id;
+ /** Comparator that sorts replies ascending by time. */
+ public static final Comparator<Reply<?>> TIME_COMPARATOR = new Comparator<Reply<?>>() {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public int compare(Reply<?> leftReply, Reply<?> rightReply) {
+ return (int) Math.max(Integer.MIN_VALUE, Math.min(Integer.MAX_VALUE, leftReply.getTime() - rightReply.getTime()));
+ }
+
+ };
+
+ /** Filter for replies with timestamps from the future. */
+ public static final Filter<Reply<?>> FUTURE_REPLY_FILTER = new Filter<Reply<?>>() {
- /** The Sone that posted this reply. */
- private Sone sone;
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean filterObject(Reply<?> reply) {
+ return reply.getTime() <= System.currentTimeMillis();
+ }
+
+ };
+
+ /** The ID of the reply. */
+ private final String id;
- /** The Post this reply refers to. */
- private Post post;
+ /** The Sone that created this reply. */
+ private volatile Sone sone;
/** The time of the reply. */
- private long time;
+ private volatile long time;
/** The text of the reply. */
- private String text;
+ private volatile String text;
+
+ /** Whether the reply is known. */
+ private volatile boolean known;
/**
- * Creates a new reply.
+ * Creates a new reply with the given ID.
*
* @param id
* The ID of the reply
*/
- public Reply(String id) {
- this(id, null, null, 0, null);
+ protected Reply(String id) {
+ this(id, null, 0, null);
}
/**
- * Creates a new reply.
- *
- * @param sone
- * The sone that posted the reply
- * @param post
- * The post to reply to
- * @param text
- * The text of the reply
- */
- public Reply(Sone sone, Post post, String text) {
- this(sone, post, System.currentTimeMillis(), text);
- }
-
- /**
- * Creates a new reply-
+ * Creates a new reply with a new random ID.
*
* @param sone
- * The sone that posted the reply
- * @param post
- * The post to reply to
+ * The Sone of the reply
* @param time
* The time of the reply
* @param text
* The text of the reply
*/
- public Reply(Sone sone, Post post, long time, String text) {
- this(UUID.randomUUID().toString(), sone, post, time, text);
+ protected Reply(Sone sone, long time, String text) {
+ this(UUID.randomUUID().toString(), sone, time, text);
}
/**
- * Creates a new reply-
+ * Creates a new reply.
*
- * @param sone
- * The sone that posted the reply
* @param id
* The ID of the reply
- * @param post
- * The post to reply to
+ * @param sone
+ * The Sone of the reply
* @param time
* The time of the reply
* @param text
* The text of the reply
*/
- public Reply(String id, Sone sone, Post post, long time, String text) {
- this.id = UUID.fromString(id);
+ protected Reply(String id, Sone sone, long time, String text) {
+ this.id = id;
this.sone = sone;
- this.post = post;
this.time = time;
this.text = text;
}
- //
- // ACCESSORS
- //
-
/**
* Returns the ID of the reply.
*
* @return The ID of the reply
*/
public String getId() {
- return id.toString();
+ return id;
}
/**
* The Sone that posted this reply
* @return This reply (for method chaining)
*/
- public Reply setSone(Sone sone) {
+ @SuppressWarnings("unchecked")
+ public T setSone(Sone sone) {
this.sone = sone;
- return this;
- }
-
- /**
- * Returns the post this reply refers to.
- *
- * @return The post this reply refers to
- */
- public Post getPost() {
- return post;
- }
-
- /**
- * Sets the post this reply refers to.
- *
- * @param post
- * The post this reply refers to
- * @return This reply (for method chaining)
- */
- public Reply setPost(Post post) {
- this.post = post;
- return this;
+ return (T) this;
}
/**
* The time of this reply (in milliseconds since Jan 1, 1970 UTC)
* @return This reply (for method chaining)
*/
- public Reply setTime(long time) {
+ @SuppressWarnings("unchecked")
+ public T setTime(long time) {
this.time = time;
- return this;
+ return (T) this;
}
/**
* The text of this reply
* @return This reply (for method chaining)
*/
- public Reply setText(String text) {
+ @SuppressWarnings("unchecked")
+ public T setText(String text) {
this.text = text;
- return this;
+ return (T) this;
+ }
+
+ /**
+ * Returns whether this reply is known.
+ *
+ * @return {@code true} if this reply is known, {@code false} otherwise
+ */
+ public boolean isKnown() {
+ return known;
+ }
+
+ /**
+ * Sets whether this reply is known.
+ *
+ * @param known
+ * {@code true} if this reply is known, {@code false} otherwise
+ * @return This reply
+ */
+ @SuppressWarnings("unchecked")
+ public T setKnown(boolean known) {
+ this.known = known;
+ return (T) this;
}
//
*/
@Override
public int hashCode() {
- return sone.hashCode() ^ id.hashCode() ^ post.hashCode() ^ (int) (time >> 32) ^ (int) (time & 0xffffffff) ^ text.hashCode();
+ return id.hashCode();
}
/**
*/
@Override
public boolean equals(Object object) {
- if (!(object instanceof Reply)) {
+ if (!(object instanceof Reply<?>)) {
return false;
}
- Reply reply = (Reply) object;
- return reply.sone.equals(sone) && reply.id.equals(id) && reply.post.equals(post) && (reply.time == time) && reply.text.equals(text);
+ Reply<?> reply = (Reply<?>) object;
+ return reply.id.equals(id);
}
/**
*/
@Override
public String toString() {
- return getClass().getName() + "[id=" + id + ",sone=" + sone + ",post=" + post + ",time=" + time + ",text=" + text + "]";
+ return getClass().getName() + "[id=" + id + ",sone=" + sone + ",time=" + time + ",text=" + text + "]";
}
}
projects / Sone.git / blobdiff