| /* |
| * Copyright (c) 2009-2010 jMonkeyEngine |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * * Neither the name of 'jMonkeyEngine' nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package jme3test.asset; |
| |
| import com.jme3.asset.Asset; |
| import com.jme3.asset.AssetCache; |
| import com.jme3.asset.AssetKey; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class TestAssetCache { |
| |
| /** |
| * Keep references to loaded assets |
| */ |
| private final static boolean KEEP_REFERENCES = false; |
| |
| /** |
| * Enable smart cache use |
| */ |
| private final static boolean USE_SMART_CACHE = true; |
| |
| /** |
| * Enable cloneable asset use |
| */ |
| private final static boolean CLONEABLE_ASSET = true; |
| |
| private static int counter = 0; |
| |
| private static class DummyData implements Asset { |
| |
| private AssetKey key; |
| private byte[] data = new byte[10000]; |
| |
| public byte[] getData(){ |
| return data; |
| } |
| |
| public AssetKey getKey() { |
| return key; |
| } |
| |
| public void setKey(AssetKey key) { |
| this.key = key; |
| } |
| } |
| |
| private static class SmartKey extends AssetKey { |
| |
| public SmartKey(){ |
| super("."); |
| counter++; |
| } |
| |
| @Override |
| public int hashCode(){ |
| return 0; |
| } |
| |
| @Override |
| public boolean equals(Object other){ |
| return false; |
| } |
| |
| @Override |
| public boolean useSmartCache(){ |
| return true; |
| } |
| |
| @Override |
| public Object createClonedInstance(Object asset){ |
| DummyData data = new DummyData(); |
| return data; |
| } |
| } |
| |
| private static class DumbKey extends AssetKey { |
| |
| public DumbKey(){ |
| super("."); |
| counter++; |
| } |
| |
| @Override |
| public int hashCode(){ |
| return 0; |
| } |
| |
| @Override |
| public boolean equals(Object other){ |
| return false; |
| } |
| |
| @Override |
| public Object createClonedInstance(Object asset){ |
| if (CLONEABLE_ASSET){ |
| DummyData data = new DummyData(); |
| return data; |
| }else{ |
| return asset; |
| } |
| } |
| } |
| |
| public static void main(String[] args){ |
| List<Object> refs = new ArrayList<Object>(5000); |
| |
| AssetCache cache = new AssetCache(); |
| |
| System.gc(); |
| System.gc(); |
| System.gc(); |
| System.gc(); |
| |
| long memory = Runtime.getRuntime().freeMemory(); |
| |
| while (true){ |
| AssetKey key; |
| |
| if (USE_SMART_CACHE){ |
| key = new SmartKey(); |
| }else{ |
| key = new DumbKey(); |
| } |
| |
| DummyData data = new DummyData(); |
| cache.addToCache(key, data); |
| |
| if (KEEP_REFERENCES){ |
| refs.add(data); |
| } |
| |
| if ((counter % 100) == 0){ |
| long newMem = Runtime.getRuntime().freeMemory(); |
| System.out.println("Allocated objects: " + counter); |
| System.out.println("Allocated memory: " + ((memory - newMem)/1024) + "K" ); |
| memory = newMem; |
| } |
| } |
| } |
| } |