X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FImage.java;h=d8a8ab192d9770c693b64caa7949fc80b2f375ee;hb=20436264b1f2a05c6e3e3e64290656c732e77dba;hp=d6e7114c338cc57d4d2f27f10fd240528ad0b6f4;hpb=5e142aaabb86f62c3962a4bf60b8a79f4e822f5b;p=Sone.git diff --git a/src/main/java/net/pterodactylus/sone/data/Image.java b/src/main/java/net/pterodactylus/sone/data/Image.java index d6e7114..d8a8ab1 100644 --- a/src/main/java/net/pterodactylus/sone/data/Image.java +++ b/src/main/java/net/pterodactylus/sone/data/Image.java @@ -1,5 +1,5 @@ /* - * Sone - Image.java - Copyright © 2011 David Roden + * Sone - Image.java - Copyright © 2011–2013 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 @@ -17,16 +17,21 @@ package net.pterodactylus.sone.data; +import static com.google.common.base.Preconditions.checkArgument; +import static com.google.common.base.Preconditions.checkNotNull; +import static com.google.common.base.Preconditions.checkState; + import java.util.UUID; -import net.pterodactylus.util.validation.Validation; +import com.google.common.hash.Hasher; +import com.google.common.hash.Hashing; /** * Container for image metadata. * * @author David ‘Bombe’ Roden */ -public class Image implements Fingerprintable { +public class Image implements Identified, Fingerprintable { /** The ID of the image. */ private final String id; @@ -70,8 +75,7 @@ public class Image implements Fingerprintable { * The ID of the image */ public Image(String id) { - Validation.begin().isNotNull("Image ID", id).check(); - this.id = id; + this.id = checkNotNull(id, "id must not be null"); } // @@ -105,7 +109,8 @@ public class Image implements Fingerprintable { * @return This image */ public Image setSone(Sone sone) { - Validation.begin().isNull("Current Image Owner", this.sone).isNotNull("New Image Owner", sone); + checkNotNull(sone, "sone must not be null"); + checkArgument((this.sone == null) || this.sone.equals(sone), "sone must not already be set to another sone"); this.sone = sone; return this; } @@ -128,7 +133,8 @@ public class Image implements Fingerprintable { * @return This image */ public Image setAlbum(Album album) { - Validation.begin().isNull("Current Album", this.album).isNotNull("New Album", album).check().isEqual("Album Owner and Image Owner", album.getSone(), getSone()).check(); + checkNotNull(album, "album must not be null"); + checkNotNull(album.getSone().equals(getSone()), "album must belong to the same Sone as this image"); this.album = album; return this; } @@ -151,7 +157,8 @@ public class Image implements Fingerprintable { * @return This image */ public Image setKey(String key) { - Validation.begin().isNull("Current Image Key", this.key).isNotNull("New Image Key", key).check(); + checkNotNull(key, "key must not be null"); + checkState((this.key == null) || this.key.equals(key), "key must not be already set to another key"); this.key = key; return this; } @@ -187,7 +194,8 @@ public class Image implements Fingerprintable { * @return This image */ public Image setCreationTime(long creationTime) { - Validation.begin().isEqual("Current Image Creation Time", this.creationTime, 0).isGreater("New Image Creation Time", creationTime, 0).check(); + checkArgument(creationTime > 0, "creationTime must be > 0"); + checkState((this.creationTime == 0) || (this.creationTime == creationTime), "creationTime must not already be set"); this.creationTime = creationTime; return this; } @@ -210,7 +218,8 @@ public class Image implements Fingerprintable { * @return This image */ public Image setWidth(int width) { - Validation.begin().isEqual("Current Image Width", this.width, 0).isGreater("New Image Width", width, 0).check(); + checkArgument(width > 0, "width must be > 0"); + checkState((this.width == 0) || (this.width == width), "width must not already be set to another width"); this.width = width; return this; } @@ -233,7 +242,8 @@ public class Image implements Fingerprintable { * @return This image */ public Image setHeight(int height) { - Validation.begin().isEqual("Current Image Height", this.height, 0).isGreater("New Image Height", height, 0); + checkArgument(height > 0, "height must be > 0"); + checkState((this.height == 0) || (this.height == height), "height must not already be set to another height"); this.height = height; return this; } @@ -255,8 +265,7 @@ public class Image implements Fingerprintable { * @return This image */ public Image setTitle(String title) { - Validation.begin().isNotNull("Image Title", title).check(); - this.title = title; + this.title = checkNotNull(title, "title must not be null"); return this; } @@ -277,8 +286,7 @@ public class Image implements Fingerprintable { * @return This image */ public Image setDescription(String description) { - Validation.begin().isNotNull("Image Description", description).check(); - this.description = description; + this.description = checkNotNull(description, "description must not be null"); return this; } @@ -291,13 +299,36 @@ public class Image implements Fingerprintable { */ @Override public String getFingerprint() { - StringBuilder fingerprint = new StringBuilder(); - fingerprint.append("Image("); - fingerprint.append("ID(").append(id).append(')'); - fingerprint.append("Title(").append(title).append(')'); - fingerprint.append("Description(").append(description).append(')'); - fingerprint.append(')'); - return fingerprint.toString(); + Hasher hash = Hashing.sha256().newHasher(); + hash.putString("Image("); + hash.putString("ID(").putString(id).putString(")"); + hash.putString("Title(").putString(title).putString(")"); + hash.putString("Description(").putString(description).putString(")"); + hash.putString(")"); + return hash.hash().toString(); + } + + // + // OBJECT METHODS + // + + /** + * {@inheritDoc} + */ + @Override + public int hashCode() { + return id.hashCode(); + } + + /** + * {@inheritDoc} + */ + @Override + public boolean equals(Object object) { + if (!(object instanceof Image)) { + return false; + } + return ((Image) object).id.equals(id); } }