Replace unnecessary type parameters with <>

[Sone.git] / src / main / java / net / pterodactylus / sone / notify / ListNotification.java

diff --git a/src/main/java/net/pterodactylus/sone/notify/ListNotification.java b/src/main/java/net/pterodactylus/sone/notify/ListNotification.java
index c7e5b7c..11b0829 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/notify/ListNotification.java
+++ b/src/main/java/net/pterodactylus/sone/notify/ListNotification.java
@@ -1,5 +1,5 @@
 /*
- * Sone - ListNotification.java - Copyright © 2010 David Roden
+ * Sone - ListNotification.java - Copyright © 2010–2016 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
@@ -18,8 +18,9 @@
 package net.pterodactylus.sone.notify;
 
 import java.util.ArrayList;
-import java.util.Collections;
+import java.util.Collection;
 import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
 
 import net.pterodactylus.util.notify.TemplateNotification;
 import net.pterodactylus.util.template.Template;
@@ -29,12 +30,14 @@ import net.pterodactylus.util.template.Template;
  *
  * @param <T>
  *            The type of the items
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  */
 public class ListNotification<T> extends TemplateNotification {
 
+       /** The key under which to store the elements in the template. */
+       private final String key;
+
        /** The list of new elements. */
-       private final List<T> elements = Collections.synchronizedList(new ArrayList<T>());
+       private final List<T> elements = new CopyOnWriteArrayList<>();
 
        /**
         * Creates a new list notification.
@@ -47,10 +50,42 @@ public class ListNotification<T> extends TemplateNotification {
         *            The template to render
         */
        public ListNotification(String id, String key, Template template) {
-               super(id, template);
+               this(id, key, template, true);
+       }
+
+       /**
+        * Creates a new list notification.
+        *
+        * @param id
+        *            The ID of the notification
+        * @param key
+        *            The key under which to store the elements in the template
+        * @param template
+        *            The template to render
+        * @param dismissable
+        *            {@code true} if this notification should be dismissable by the
+        *            user, {@code false} otherwise
+        */
+       public ListNotification(String id, String key, Template template, boolean dismissable) {
+               super(id, System.currentTimeMillis(), System.currentTimeMillis(), dismissable, template);
+               this.key = key;
                template.getInitialContext().set(key, elements);
        }
 
+       /**
+        * Creates a new list notification that copies its ID and the template from
+        * the given list notification.
+        *
+        * @param listNotification
+        *            The list notification to copy
+        */
+       public ListNotification(ListNotification<T> listNotification) {
+               super(listNotification.getId(), listNotification.getCreatedTime(), listNotification.getLastUpdatedTime(), listNotification.isDismissable(), new Template());
+               this.key = listNotification.key;
+               getTemplate().add(listNotification.getTemplate());
+               getTemplate().getInitialContext().set(key, elements);
+       }
+
        //
        // ACTIONS
        //
@@ -61,7 +96,20 @@ public class ListNotification<T> extends TemplateNotification {
         * @return The current list of elements
         */
        public List<T> getElements() {
-               return new ArrayList<T>(elements);
+               return new ArrayList<>(elements);
+       }
+
+       /**
+        * Sets the elements to show in this notification. This method will not call
+        * {@link #touch()}.
+        *
+        * @param elements
+        *            The elements to show
+        */
+       public void setElements(Collection<? extends T> elements) {
+               this.elements.clear();
+               this.elements.addAll(elements);
+               touch();
        }
 
        /**
@@ -92,7 +140,9 @@ public class ListNotification<T> extends TemplateNotification {
         *            The element to remove
         */
        public void remove(T element) {
-               elements.remove(element);
+               while (elements.remove(element)) {
+                       /* do nothing, just remove all instances of the element. */
+               }
                if (elements.isEmpty()) {
                        dismiss();
                }
@@ -112,4 +162,38 @@ public class ListNotification<T> extends TemplateNotification {
                elements.clear();
        }
 
+       //
+       // OBJECT METHODS
+       //
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public int hashCode() {
+               int hashCode = super.hashCode();
+               for (T element : elements) {
+                       hashCode ^= element.hashCode();
+               }
+               return hashCode;
+       }
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public boolean equals(Object object) {
+               if (!(object instanceof ListNotification)) {
+                       return false;
+               }
+               ListNotification<?> listNotification = (ListNotification<?>) object;
+               if (!super.equals(listNotification)) {
+                       return false;
+               }
+               if (!key.equals(listNotification.key)) {
+                       return false;
+               }
+               return elements.equals(listNotification.elements);
+       }
+
 }