001/* 002 * Copyright 2019 Anyware Services 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package org.ametys.plugins.core.impl.cache; 017 018import java.time.Duration; 019 020import org.openjdk.jol.vm.VM; 021 022import org.ametys.core.cache.AbstractCacheManager; 023import org.ametys.core.cache.Cache; 024import org.ametys.runtime.i18n.I18nizableText; 025 026/** 027 * Implementation of AbstractCacheManager to create new Cache using GuavaCache implementation 028 */ 029public class GuavaCacheManager extends AbstractCacheManager 030{ 031 /** Is size computable on this configuration */ 032 protected boolean _canComputeSize; 033 034 @Override 035 public void initialize() throws Exception 036 { 037 super.initialize(); 038 try 039 { 040 VM.current(); 041 _canComputeSize = true; 042 } 043 catch (IllegalStateException e) 044 { 045 _canComputeSize = false; 046 getLogger().warn("JOL is not supported for this JVM. Caches sizes won't be computed.", e); 047 } 048 } 049 050 @SuppressWarnings("unchecked") 051 @Override 052 protected Cache _createCache(String id, I18nizableText name, I18nizableText description, boolean computableSize, Duration duration, boolean isDispatchable) 053 { 054 return new GuavaCache(id, name, description, Long.MAX_VALUE, _canComputeSize && computableSize, duration, isDispatchable); 055 } 056}