Replace custom circular buffer with Apache commons(CircularFifoQueue)

Signed-off-by: Andrew DeMaria <lostonamountain@gmail.com>

airsonic-main/pom.xml

@@ -160,8 +160,9 @@
         </dependency>
 
         <dependency>
-            <groupId>commons-collections</groupId>
-            <artifactId>commons-collections</artifactId>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-collections4</artifactId>
+            <version>4.4</version>
         </dependency>
 
         <dependency>

airsonic-main/src/main/java/org/airsonic/player/domain/TransferStatus.java

@@ -19,7 +19,7 @@
  */
 package org.airsonic.player.domain;
 
-import org.airsonic.player.util.BoundedList;
+import org.apache.commons.collections4.queue.CircularFifoQueue;
 
 import java.io.File;
 
@@ -288,7 +288,7 @@ public class TransferStatus {
     /**
      * Contains recent history of samples.
      */
-    public static class SampleHistory extends BoundedList<Sample> {
+    public static class SampleHistory extends CircularFifoQueue<Sample> {
 
         public SampleHistory() {
             super(HISTORY_LENGTH);
@@ -298,5 +298,9 @@ public class TransferStatus {
             super(HISTORY_LENGTH);
             addAll(other);
         }
+
+        public Sample getLast() {
+            return this.get(this.size() - 1);
+        }
     }
 }

airsonic-main/src/main/java/org/airsonic/player/service/search/SearchServiceUtilities.java

@@ -28,7 +28,7 @@ import org.airsonic.player.domain.MediaFile;
 import org.airsonic.player.domain.ParamSearchResult;
 import org.airsonic.player.domain.SearchResult;
 import org.airsonic.player.service.MediaFileService;
-import org.apache.commons.collections.CollectionUtils;
+import org.apache.commons.collections4.CollectionUtils;
 import org.apache.lucene.document.Document;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -132,7 +132,7 @@ public class SearchServiceUtilities {
         }
     };
 
-    public final boolean addIgnoreNull(Collection<?> collection, Object object) {
+    public final boolean addIgnoreNull(Collection collection, Object object) {
         return CollectionUtils.addIgnoreNull(collection, object);
     }
 

airsonic-main/src/main/java/org/airsonic/player/util/BoundedList.java

@@ -1,72 +0,0 @@
-/*
- This file is part of Airsonic.
-
- Airsonic is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- Airsonic is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with Airsonic.  If not, see <http://www.gnu.org/licenses/>.
-
- Copyright 2016 (C) Airsonic Authors
- Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
- */
-package org.airsonic.player.util;
-
-import java.util.LinkedList;
-
-/**
- * Simple implementation of a bounded list. If the maximum size is reached, adding a new element will
- * remove the first element in the list.
- *
- * @author Sindre Mehus
- * @version $Revision: 1.1 $ $Date: 2005/05/09 20:01:25 $
- */
-public class BoundedList<E> extends LinkedList<E> {
-    private int maxSize;
-
-    /**
-     * Creates a new bounded list with the given maximum size.
-     * @param maxSize The maximum number of elements the list may hold.
-     */
-    public BoundedList(int maxSize) {
-        this.maxSize = maxSize;
-    }
-
-    /**
-     * Adds an element to the tail of the list. If the list is full, the first element is removed.
-     * @param e The element to add.
-     * @return Always <code>true</code>.
-     */
-    public boolean add(E e) {
-        if (isFull()) {
-            removeFirst();
-        }
-        return super.add(e);
-    }
-
-    /**
-     * Adds an element to the head of list. If the list is full, the last element is removed.
-     * @param e The element to add.
-     */
-    public void addFirst(E e) {
-        if (isFull()) {
-            removeLast();
-        }
-        super.addFirst(e);
-    }
-
-    /**
-     * Returns whether the list if full.
-     * @return Whether the list is full.
-     */
-    private boolean isFull() {
-        return size() == maxSize;
-    }
-}