X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FPost.java;h=b6648e213da87a60554a5a7b82657a2142b4dbe1;hp=9887de98cc6ea71d81f6417096cc0033ce18ea33;hb=179e7da4d8d8a474d0b622d60b5f5d32d6ab4052;hpb=122b04e5e25dcc30f2bd5542be525aa327fcac84 diff --git a/src/main/java/net/pterodactylus/sone/data/Post.java b/src/main/java/net/pterodactylus/sone/data/Post.java index 9887de9..b6648e2 100644 --- a/src/main/java/net/pterodactylus/sone/data/Post.java +++ b/src/main/java/net/pterodactylus/sone/data/Post.java @@ -1,5 +1,5 @@ /* - * FreenetSone - StatusUpdate.java - Copyright © 2010 David Roden + * Sone - Post.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 @@ -17,134 +17,167 @@ package net.pterodactylus.sone.data; -import java.util.UUID; +import static com.google.common.base.Optional.absent; + +import java.util.Comparator; + +import com.google.common.base.Optional; +import com.google.common.base.Predicate; /** * A post is a short message that a user writes in his Sone to let other users * know what is going on. - * - * @author David ‘Bombe’ Roden */ -public class Post { +public interface Post extends Identified { + + /** Comparator for posts, sorts descending by time. */ + public static final Comparator NEWEST_FIRST = new Comparator() { - /** The GUID of the post. */ - private final UUID id; + @Override + public int compare(Post leftPost, Post rightPost) { + return (int) Math.max(Integer.MIN_VALUE, Math.min(Integer.MAX_VALUE, rightPost.getTime() - leftPost.getTime())); + } + + }; - /** The Sone this post belongs to. */ - private final Sone sone; + /** Filter for posts with timestamps from the future. */ + public static final Predicate FUTURE_POSTS_FILTER = new Predicate() { - /** The time of the post (in milliseconds since Jan 1, 1970 UTC). */ - private final long time; + @Override + public boolean apply(Post post) { + return (post != null) && (post.getTime() <= System.currentTimeMillis()); + } - /** The text of the post. */ - private final String text; + }; + + // + // ACCESSORS + // /** - * Creates a new post. + * Returns the ID of the post. * - * @param sone - * The Sone this post belongs to - * @param text - * The text of the post + * @return The ID of the post */ - public Post(Sone sone, String text) { - this(sone, System.currentTimeMillis(), text); - } + public String getId(); /** - * Creates a new post. + * Returns whether this post has already been loaded. * - * @param sone - * The Sone this post belongs to - * @param time - * The time of the post (in milliseconds since Jan 1, 1970 UTC) - * @param text - * The text of the post + * @return {@code true} if this post has already been loaded, {@code + * false} otherwise */ - public Post(Sone sone, long time, String text) { - this(UUID.randomUUID(), sone, time, text); - } + boolean isLoaded(); /** - * Creates a new post. + * Returns the Sone this post belongs to. * - * @param id - * The ID of the post - * @param sone - * The Sone this post belongs to - * @param time - * The time of the post (in milliseconds since Jan 1, 1970 UTC) - * @param text - * The text of the post + * @return The Sone of this post */ - public Post(UUID id, Sone sone, long time, String text) { - this.id = id; - this.sone = sone; - this.time = time; - this.text = text; - } - - // - // ACCESSORS - // + public Sone getSone(); /** - * Returns the ID of the post. + * Returns the ID of the recipient {@link Sone}, or + * {@link Optional#absent()} if this post does not have a recipient. * - * @return The ID of the post + * @return The ID of the recipient, or {@link Optional#absent()} */ - public String getId() { - return id.toString(); - } + public Optional getRecipientId(); /** - * Returns the Sone this post belongs to. + * Returns the recipient of this post, if any. * - * @return The Sone of this post + * @return The recipient of this post, or {@link Optional#absent()} if there + * is no recipient */ - public Sone getSone() { - return sone; - } + public Optional getRecipient(); /** * Returns the time of the post. * * @return The time of the post (in milliseconds since Jan 1, 1970 UTC) */ - public long getTime() { - return time; - } + public long getTime(); /** * Returns the text of the post. * * @return The text of the post */ - public String getText() { - return text; - } + public String getText(); - // - // OBJECT METHODS - // + /** + * Returns whether this post is known. + * + * @return {@code true} if this post is known, {@code false} otherwise + */ + public boolean isKnown(); /** - * {@inheritDoc} + * Sets whether this post is known. + * + * @param known + * {@code true} if this post is known, {@code false} otherwise + * @return This post */ - @Override - public int hashCode() { - return text.hashCode() ^ (int) (time >> 32) ^ (int) (time & 0xffffffff); - } + public Post setKnown(boolean known); /** - * {@inheritDoc} + * Shell for a post that has not yet been loaded. */ - @Override - public boolean equals(Object object) { - if (!(object instanceof Post)) { + public static class EmptyPost implements Post { + + private final String id; + + public EmptyPost(String id) { + this.id = id; + } + + @Override + public String getId() { + return id; + } + + @Override + public boolean isLoaded() { return false; } - return ((Post) object).id.equals(id); + + @Override + public Sone getSone() { + return null; + } + + @Override + public Optional getRecipientId() { + return absent(); + } + + @Override + public Optional getRecipient() { + return absent(); + } + + @Override + public long getTime() { + return 0; + } + + @Override + public String getText() { + return null; + } + + @Override + public boolean isKnown() { + return false; + } + + @Override + public Post setKnown(boolean known) { + return this; + } + } }