/*
- * Sone - Reply.java - Copyright © 2010 David Roden
+ * Sone - Reply.java - Copyright © 2010–2019 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.UUID;
+import java.util.Comparator;
+
+import com.google.common.base.Predicate;
/**
- * A reply is like a {@link Post} but can never be posted on its own, it always
- * refers to another {@link Post}.
+ * Defines methods common for all replies.
*
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ * @param <T>
+ * The type of the reply
*/
-public class Reply {
-
- /** The Sone that posted this reply. */
- private final Sone sone;
+public interface Reply<T extends Reply<T>> extends Identified {
- /** The ID of the reply. */
- private final UUID id;
+ /** Comparator that sorts replies ascending by time. */
+ public static final Comparator<? super Reply<?>> TIME_COMPARATOR = new Comparator<Reply<?>>() {
- /** The Post this reply refers to. */
- private final Post post;
-
- /** The time of the reply. */
- private final long time;
+ /**
+ * {@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()));
+ }
- /** The text of the reply. */
- private final String text;
+ };
- /**
- * 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);
- }
+ /** Filter for replies with timestamps from the future. */
+ public static final Predicate<Reply<?>> FUTURE_REPLY_FILTER = new Predicate<Reply<?>>() {
- /**
- * Creates a new reply-
- *
- * @param sone
- * The sone that posted the reply
- * @param post
- * The post to reply to
- * @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(sone, UUID.randomUUID(), post, time, text);
- }
-
- /**
- * 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 time
- * The time of the reply
- * @param text
- * The text of the reply
- */
- public Reply(Sone sone, UUID id, Post post, long time, String text) {
- this.sone = sone;
- this.id = id;
- this.post = post;
- this.time = time;
- this.text = text;
- }
-
- //
- // ACCESSORS
- //
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public boolean apply(Reply<?> reply) {
+ return (reply != null) && (reply.getTime() <= System.currentTimeMillis());
+ }
- /**
- * Returns the Sone that posted this reply.
- *
- * @return The Sone that posted this reply
- */
- public Sone getSone() {
- return sone;
- }
+ };
/**
* Returns the ID of the reply.
*
* @return The ID of the reply
*/
- public String getId() {
- return id.toString();
- }
+ public String getId();
/**
- * Returns the post this reply refers to.
+ * Returns the Sone that posted this reply.
*
- * @return The post this reply refers to
+ * @return The Sone that posted this reply
*/
- public Post getPost() {
- return post;
- }
+ public Sone getSone();
/**
* Returns the time of the reply.
*
* @return The time of the reply (in milliseconds since Jan 1, 1970 UTC)
*/
- public long getTime() {
- return time;
- }
+ public long getTime();
/**
* Returns the text of the reply.
*
* @return The text of the reply
*/
- public String getText() {
- return text;
- }
-
- //
- // OBJECT METHODS
- //
+ public String getText();
/**
- * {@inheritDoc}
+ * Returns whether this reply is known.
+ *
+ * @return {@code true} if this reply is known, {@code false} otherwise
*/
- @Override
- public int hashCode() {
- return sone.hashCode() ^ id.hashCode() ^ post.hashCode() ^ (int) (time >> 32) ^ (int) (time & 0xffffffff);
- }
+ public boolean isKnown();
/**
- * {@inheritDoc}
+ * Sets whether this reply is known.
+ *
+ * @param known
+ * {@code true} if this reply is known, {@code false} otherwise
+ * @return This reply
*/
- @Override
- public boolean equals(Object object) {
- 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);
- }
+ public T setKnown(boolean known);
}
projects / Sone.git / blobdiff