| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.tomee.catalina; |
| |
| import org.apache.openejb.config.TldScanner; |
| import org.apache.openejb.jee.JaxbJavaee; |
| import org.apache.openejb.jee.WebApp; |
| |
| import javax.xml.bind.JAXBException; |
| import java.util.concurrent.Semaphore; |
| |
| /** |
| * The classes listed and loaded eagerly have static initializers which take a tiny bit of time. |
| * These initializers cannot be actually run in parallel because classes are loaded serially, |
| * but executing them back to back does help speed things up a bit. |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class Warmup { |
| |
| /** |
| * Referencing this method is enough to cause the static initializer |
| * to be called. Referencing this method in several classes is therefore safe. |
| * |
| * This method itself does nothing. |
| */ |
| public static void warmup() {} |
| |
| static { |
| final String[] classes = { |
| "java.util.concurrent.TimeUnit", |
| "java.util.concurrent.atomic.AtomicLong", |
| "javassist.util.proxy.ProxyFactory", |
| "javax.el.ExpressionFactory", |
| "javax.faces.component.UIViewRoot", |
| "javax.imageio.ImageIO", |
| "javax.naming.spi.NamingManager", |
| "javax.servlet.ServletOutputStream", |
| "org.apache.bval.jsr303.ApacheValidatorFactory", |
| "org.apache.bval.jsr303.ConstraintAnnotationAttributes", |
| "org.apache.bval.jsr303.ConstraintDefaults", |
| "org.apache.bval.jsr303.groups.GroupsComputer", |
| "org.apache.bval.jsr303.xml.ValidationMappingParser", |
| "org.apache.bval.util.PrivilegedActions", |
| "org.apache.catalina.authenticator.AuthenticatorBase", |
| "org.apache.catalina.connector.Connector", |
| "org.apache.catalina.connector.CoyoteAdapter", |
| "org.apache.catalina.connector.Request", |
| "org.apache.catalina.connector.Response", |
| "org.apache.catalina.core.ApplicationFilterChain", |
| "org.apache.catalina.core.StandardContext", |
| "org.apache.catalina.core.StandardServer", |
| "org.apache.catalina.deploy.NamingResources", |
| "org.apache.catalina.loader.WebappLoader", |
| "org.apache.catalina.mbeans.GlobalResourcesLifecycleListener", |
| "org.apache.catalina.mbeans.MBeanUtils", |
| "org.apache.catalina.realm.RealmBase", |
| "org.apache.catalina.security.SecurityUtil", |
| "org.apache.catalina.servlets.DefaultServlet", |
| "org.apache.catalina.session.ManagerBase", |
| "org.apache.catalina.startup.Bootstrap", |
| "org.apache.catalina.startup.Catalina", |
| "org.apache.catalina.startup.CatalinaProperties", |
| "org.apache.catalina.startup.ContextConfig", |
| "org.apache.catalina.users.MemoryUserDatabase", |
| "org.apache.catalina.util.ExtensionValidator", |
| "org.apache.catalina.util.LifecycleBase", |
| "org.apache.catalina.util.ServerInfo", |
| "org.apache.catalina.valves.AccessLogValve", |
| "org.apache.catalina.valves.ValveBase", |
| "org.apache.coyote.AbstractProtocol", |
| "org.apache.coyote.ajp.AbstractAjpProtocol", |
| "org.apache.coyote.http11.AbstractHttp11Protocol", |
| "org.apache.geronimo.transaction.manager.TransactionManagerImpl", |
| "org.apache.jasper.compiler.JspRuntimeContext", |
| "org.apache.juli.logging.DirectJDKLog", |
| "org.apache.myfaces.context.servlet.ServletExternalContextImplBase", |
| "org.apache.myfaces.shared.config.MyfacesConfig", |
| "org.apache.myfaces.spi.WebConfigProviderFactory", |
| "org.apache.naming.ContextBindings", |
| "org.apache.naming.resources.BaseDirContext", |
| "org.apache.openejb.ClassLoaderUtil", |
| "org.apache.openejb.InterfaceType", |
| "org.apache.openejb.assembler.classic.Assembler", |
| "org.apache.openejb.assembler.classic.AssemblerTool", |
| "org.apache.openejb.cdi.CdiBuilder", |
| "org.apache.openejb.cdi.ThreadSingletonServiceImpl", |
| "org.apache.openejb.config.AnnotationDeployer", |
| "org.apache.openejb.config.AnnotationDeployer$4", |
| "org.apache.openejb.config.AppValidator", |
| "org.apache.openejb.config.AutoConfig", |
| "org.apache.openejb.config.ConfigurationFactory", |
| "org.apache.openejb.config.MBeanDeployer", |
| "org.apache.openejb.config.NewLoaderLogic", |
| "org.apache.openejb.config.PersistenceContextAnnFactory", |
| "org.apache.openejb.config.sys.JaxbJavaee", |
| "org.apache.openejb.core.ServerFederation", |
| "org.apache.openejb.core.ivm.EjbHomeProxyHandler$1", |
| "org.apache.openejb.core.ivm.EjbHomeProxyHandler$MethodType", |
| "org.apache.openejb.core.managed.ManagedContainer$MethodType", |
| "org.apache.openejb.loader.FileUtils", |
| "org.apache.openejb.loader.IO", |
| "org.apache.openejb.loader.SystemInstance", |
| "org.apache.openejb.monitoring.StatsInterceptor", |
| "org.apache.openejb.persistence.JtaEntityManagerRegistry", |
| "org.apache.openejb.server.ServiceLogger", |
| "org.apache.openejb.server.ejbd.EjbDaemon", |
| "org.apache.openejb.server.ejbd.EjbRequestHandler", |
| "org.apache.openejb.util.Duration", |
| "org.apache.openejb.util.Join", |
| "org.apache.openejb.util.LogCategory", |
| "org.apache.openejb.util.Messages", |
| "org.apache.openejb.util.SafeToolkit", |
| "org.apache.openejb.util.StringTemplate", |
| "org.apache.openejb.util.proxy.ProxyManager", |
| "org.apache.openjpa.enhance.PCRegistry", |
| "org.apache.openjpa.lib.util.Localizer", |
| "org.apache.openjpa.lib.util.concurrent.ConcurrentReferenceHashMap", |
| "org.apache.tomcat.util.buf.B2CConverter", |
| "org.apache.tomcat.util.buf.ByteChunk", |
| "org.apache.tomcat.util.digester.Digester", |
| "org.apache.tomcat.util.file.Matcher", |
| "org.apache.tomcat.util.http.Cookies", |
| "org.apache.tomcat.util.http.HttpMessages", |
| "org.apache.tomcat.util.http.mapper.Mapper", |
| "org.apache.tomcat.util.net.AbstractEndpoint", |
| "org.apache.tomcat.util.scan.StandardJarScanner", |
| "org.apache.tomcat.util.threads.ThreadPoolExecutor", |
| "org.apache.tomee.catalina.BackportUtil", |
| "org.apache.tomee.catalina.BackportUtil$1", |
| // "org.apache.tomee.catalina.TomcatLoader", // can't be loaded from here |
| "org.apache.webbeans.config.WebBeansFinder", |
| "org.apache.webbeans.container.InjectionResolver", |
| "org.apache.webbeans.util.WebBeansUtil", |
| "org.apache.webbeans.web.context.WebContextsService", |
| "org.apache.xbean.naming.reference.SimpleReference", |
| "org.apache.xbean.propertyeditor.PropertyEditors", |
| "org.apache.xbean.propertyeditor.ReferenceIdentityMap", |
| "org.apache.xbean.recipe.ReflectionUtil", |
| "org.slf4j.LoggerFactory", |
| "org.slf4j.impl.StaticLoggerBinder", |
| }; |
| |
| final ClassLoader loader = Warmup.class.getClassLoader(); |
| |
| // final JaxbJavaeeLoad jaxbJavaeeLoad = new JaxbJavaeeLoad(WebApp.class); |
| // final Thread jaxb = new Thread(jaxbJavaeeLoad); |
| // jaxb.setDaemon(true); |
| // jaxb.start(); |
| |
| try { // see org.apache.openejb.Core |
| Class.forName("org.apache.openejb.util.Logger", true, loader); |
| Class.forName("org.apache.openejb.util.JuliLogStreamFactory", true, loader); |
| } catch (Throwable e) { |
| // no-op |
| } |
| |
| final int permits = 2 * Runtime.getRuntime().availableProcessors() + 1; |
| final Semaphore semaphore = new Semaphore(0); |
| |
| final Thread tld = new Thread() { |
| |
| @Override |
| public void run() { |
| try { |
| TldScanner.scan(loader); |
| } catch (Throwable throwable) { |
| // no-op |
| } |
| } |
| }; |
| tld.setDaemon(true); |
| tld.start(); |
| |
| final int part = (int) Math.round(classes.length * 1. / permits); |
| for (int i = 0; i < permits; i++) { |
| final int offset = i * part; |
| final Thread thread = new Thread() { |
| @Override |
| public void run() { |
| int max = offset + part; |
| if (offset / part == permits - 1) { // last one |
| max = classes.length; |
| } |
| |
| for (int c = offset; c < max; c++) { |
| try { |
| Class.forName(classes[c], true, loader); |
| } catch (Throwable e) { |
| // no-op |
| } |
| } |
| semaphore.release(); |
| } |
| }; |
| thread.setName("warmup - " + (i + 1)); |
| thread.setDaemon(true); |
| thread.start(); |
| } |
| try { |
| semaphore.acquire(permits); |
| tld.join(); |
| // jaxb.join(); |
| } catch (InterruptedException e) { |
| Thread.interrupted(); |
| } |
| } |
| |
| |
| // private static class JaxbJavaeeLoad implements Runnable { |
| // |
| // private final Class<?> type; |
| // |
| // private JaxbJavaeeLoad(Class<?> type) { |
| // this.type = type; |
| // } |
| // |
| // @Override |
| // public void run() { |
| // try { |
| // JaxbJavaee.getContext(type); |
| // } catch (JAXBException e) { |
| // } |
| // } |
| // } |
| } |
