/*
- * Sone - Image.java - Copyright © 2011 David Roden
+ * Sone - Image.java - Copyright © 2011–2020 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 net.pterodactylus.util.validation.Validation;
-
/**
* Container for image metadata.
- *
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
-public class Image implements Fingerprintable {
-
- /** The ID of the image. */
- private final String id;
-
- /** The Sone the image belongs to. */
- private Sone sone;
-
- /** The request key of the image. */
- private String key;
-
- /** The creation time of the image. */
- private long creationTime;
-
- /** The width of the image. */
- private int width;
-
- /** The height of the image. */
- private int height;
-
- /** The title of the image. */
- private String title;
-
- /** The description of the image. */
- private String description;
-
- /**
- * Creates a new image with a random ID.
- */
- public Image() {
- this(UUID.randomUUID().toString());
- setCreationTime(System.currentTimeMillis());
- }
-
- /**
- * Creates a new image.
- *
- * @param id
- * The ID of the image
- */
- public Image(String id) {
- Validation.begin().isNotNull("Image ID", id).check();
- this.id = id;
- }
-
- //
- // ACCESSORS
- //
+public interface Image extends Identified, Fingerprintable {
/**
* Returns the ID of this image.
*
* @return The ID of this image
*/
- public String getId() {
- return id;
- }
+ String getId();
/**
* Returns the Sone this image belongs to.
*
* @return The Sone this image belongs to
*/
- public Sone getSone() {
- return sone;
- }
+ Sone getSone();
+
+ /**
+ * Returns the album this image belongs to.
+ *
+ * @return The album this image belongs to
+ */
+ Album getAlbum();
/**
- * Sets the owner of this image. The owner can only be set if no owner has
- * yet been set.
+ * Sets the album this image belongs to. The album of an image can only be
+ * set once, and it is usually called by {@link Album#addImage(Image)}.
*
- * @param sone
- * The new owner of this image
+ * @param album
+ * The album this image belongs to
* @return This image
*/
- public Image setSone(Sone sone) {
- Validation.begin().isNull("Current Image Owner", this.sone).isNotNull("New Image Owner", sone);
- this.sone = sone;
- return this;
- }
+ Image setAlbum(Album album);
/**
* Returns the request key of this image.
*
* @return The request key of this image
*/
- public String getKey() {
- return key;
- }
+ String getKey();
/**
- * Sets the request key of this image. The request key can only be set as
- * long as no request key has yet been set.
+ * Returns whether the image has already been inserted. An image is
+ * considered as having been inserted it its {@link #getKey() key} is not
+ * {@code null}.
*
- * @param key
- * The new request key of this image
- * @return This image
+ * @return {@code true} if there is a key for this image, {@code false}
+ * otherwise
*/
- public Image setKey(String key) {
- Validation.begin().isNull("Current Image Key", this.key).isNotNull("New Image Key", key).check();
- this.key = key;
- return this;
- }
+ boolean isInserted();
/**
* Returns the creation time of this image.
* @return The creation time of this image (in milliseconds since 1970, Jan
* 1, UTC)
*/
- public long getCreationTime() {
- return creationTime;
- }
-
- /**
- * Sets the new creation time of this image. The creation time can only be
- * set as long as no creation time has been set yet.
- *
- * @param creationTime
- * The new creation time of this image
- * @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();
- this.creationTime = creationTime;
- return this;
- }
+ long getCreationTime();
/**
* Returns the width of this image.
*
* @return The width of this image (in pixels)
*/
- public int getWidth() {
- return width;
- }
-
- /**
- * Sets the width of this image. The width can only be set as long as no
- * width has been set yet.
- *
- * @param width
- * The new width of this image
- * @return This image
- */
- public Image setWidth(int width) {
- Validation.begin().isEqual("Current Image Width", this.width, 0).isGreater("New Image Width", width, 0).check();
- this.width = width;
- return this;
- }
+ int getWidth();
/**
* Returns the height of this image.
*
* @return The height of this image (in pixels)
*/
- public int getHeight() {
- return height;
- }
-
- /**
- * Sets the new height of this image. The height can only be set as long as
- * no height has yet been set.
- *
- * @param height
- * The new height of this image
- * @return This image
- */
- public Image setHeight(int height) {
- Validation.begin().isEqual("Current Image Height", this.height, 0).isGreater("New Image Height", height, 0);
- this.height = height;
- return this;
- }
+ int getHeight();
/**
* Returns the title of this image.
*
* @return The title of this image
*/
- public String getTitle() {
- return title;
- }
-
- /**
- * Sets the title of this image.
- *
- * @param title
- * The title of this image
- * @return This image
- */
- public Image setTitle(String title) {
- Validation.begin().isNotNull("Image Title", title).check();
- this.title = title;
- return this;
- }
+ String getTitle();
/**
* Returns the description of this image.
*
* @return The description of this image
*/
- public String getDescription() {
- return description;
- }
-
- /**
- * Sets the description of this image.
- *
- * @param description
- * The description of this image
- * @return This image
- */
- public Image setDescription(String description) {
- Validation.begin().isNotNull("Image Description", description).check();
- this.description = description;
- return this;
- }
-
- //
- // FINGERPRINTABLE METHODS
- //
+ String getDescription();
/**
* {@inheritDoc}
*/
@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();
+ String getFingerprint();
+
+ Modifier modify() throws IllegalStateException;
+
+ interface Modifier {
+
+ Modifier setSone(Sone sone);
+
+ Modifier setCreationTime(long creationTime);
+
+ Modifier setKey(String key);
+
+ Modifier setTitle(String title);
+
+ Modifier setDescription(String description);
+
+ Modifier setWidth(int width);
+
+ Modifier setHeight(int height);
+
+ Image update() throws IllegalStateException;
+
+ class ImageTitleMustNotBeEmpty extends IllegalStateException { }
+
}
}
projects / Sone.git / blobdiff