Replace utils’ Validation by Guava’s Preconditions.

[Sone.git] / src / main / java / net / pterodactylus / sone / data / Image.java

diff --git a/src/main/java/net/pterodactylus/sone/data/Image.java b/src/main/java/net/pterodactylus/sone/data/Image.java
index 25a36e3..8d5f023 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/data/Image.java
+++ b/src/main/java/net/pterodactylus/sone/data/Image.java
@@ -17,9 +17,11 @@
 
 package net.pterodactylus.sone.data;
 
-import java.util.UUID;
+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 net.pterodactylus.util.validation.Validation;
+import java.util.UUID;
 
 /**
  * Container for image metadata.
@@ -70,8 +72,7 @@ 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 +106,8 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setSone(Sone sone) {
-               Validation.begin().isNotNull("New Image Owner", sone).isEither("Old Image Owner", this.sone, null, sone).check();
+               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 +130,8 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setAlbum(Album album) {
-               Validation.begin().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 +154,8 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setKey(String key) {
-               Validation.begin().isNotNull("New Image Key", key).isEither("Old Image Key", this.key, null, 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 +191,8 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setCreationTime(long creationTime) {
-               Validation.begin().isGreater("New Image Creation Time", creationTime, 0).isEither("Old Image Creation Time", this.creationTime, 0L, creationTime).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 +215,8 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setWidth(int width) {
-               Validation.begin().isGreater("New Image Width", width, 0).isEither("Old Image Width", this.width, 0, width).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 +239,8 @@ public class Image implements Fingerprintable {
         * @return This image
         */
        public Image setHeight(int height) {
-               Validation.begin().isGreater("New Image Height", height, 0).isEither("Old Image Height", this.height, 0, height).check();
+               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 +262,7 @@ 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 +283,7 @@ 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;
        }