Lukasz,

why were you removing the logging gates, aka the if blocks around log
statements? I agree that for simple String parameters (without
concatenation) they might be left out, but for everything else they
really help a lot for performance - that's why I use them in general.

We should even consider reviewing S2 code if there are more unguarded
log statements, to squeeze out the last bit of performance :)

See also http://logging.apache.org/log4j/1.2/faq.html#a2.3

- René

On 01.05.11 16:29, lukaszlen...@apache.org wrote:
> Author: lukaszlenart
> Date: Sun May  1 14:29:02 2011
> New Revision: 1098322
> 
> URL: http://svn.apache.org/viewvc?rev=1098322&view=rev
> Log:
> Removes unnecessary checking for log level and uses ConcurrentHashMap instead 
> of HashMap
> 
> Modified:
>     
> struts/sandbox/trunk/struts2-cdi-plugin/src/main/java/org/apache/struts2/cdi/CdiObjectFactory.java
> 
> Modified: 
> struts/sandbox/trunk/struts2-cdi-plugin/src/main/java/org/apache/struts2/cdi/CdiObjectFactory.java
> URL: 
> http://svn.apache.org/viewvc/struts/sandbox/trunk/struts2-cdi-plugin/src/main/java/org/apache/struts2/cdi/CdiObjectFactory.java?rev=1098322&r1=1098321&r2=1098322&view=diff
> ==============================================================================
> --- 
> struts/sandbox/trunk/struts2-cdi-plugin/src/main/java/org/apache/struts2/cdi/CdiObjectFactory.java
>  (original)
> +++ 
> struts/sandbox/trunk/struts2-cdi-plugin/src/main/java/org/apache/struts2/cdi/CdiObjectFactory.java
>  Sun May  1 14:29:02 2011
> @@ -23,14 +23,14 @@ import com.opensymphony.xwork2.ObjectFac
>  import com.opensymphony.xwork2.util.logging.Logger;
>  import com.opensymphony.xwork2.util.logging.LoggerFactory;
>  
> +import javax.enterprise.context.spi.CreationalContext;
>  import javax.enterprise.inject.spi.BeanManager;
>  import javax.enterprise.inject.spi.InjectionTarget;
> -import javax.enterprise.context.spi.CreationalContext;
>  import javax.naming.Context;
>  import javax.naming.InitialContext;
>  import javax.naming.NamingException;
>  import java.util.Map;
> -import java.util.HashMap;
> +import java.util.concurrent.ConcurrentHashMap;
>  
>  /**
>   * CdiObjectFactory allows Struts 2 managed objects, like Actions, 
> Interceptors or Results, to be injected by a Contexts
> @@ -52,7 +52,7 @@ public class CdiObjectFactory extends Ob
>      protected BeanManager beanManager;
>      protected CreationalContext ctx;
>  
> -    Map<Class<?>, InjectionTarget<?>> injectionTargetCache = new 
> HashMap<Class<?>, InjectionTarget<?>>();
> +    Map<Class<?>, InjectionTarget<?>> injectionTargetCache = new 
> ConcurrentHashMap<Class<?>, InjectionTarget<?>>();
>  
>      public CdiObjectFactory() {
>          super();
> @@ -76,25 +76,17 @@ public class CdiObjectFactory extends Ob
>          BeanManager bm;
>          try {
>              Context initialContext = new InitialContext();
> -            if (LOG.isInfoEnabled()) {
> -                LOG.info("[findBeanManager]: Checking for BeanManager under 
> JNDI key " + CDI_JNDIKEY_BEANMANAGER_COMP);
> -            }
> +            LOG.info("[findBeanManager]: Checking for BeanManager under JNDI 
> key " + CDI_JNDIKEY_BEANMANAGER_COMP);
>              try {
>                  bm = (BeanManager) 
> initialContext.lookup(CdiObjectFactory.CDI_JNDIKEY_BEANMANAGER_COMP);
> -            } catch ( NamingException e ) {
> -                if (LOG.isWarnEnabled()) {
> -                    LOG.warn("[findBeanManager]: Lookup failed.");
> -                }
> -                if (LOG.isInfoEnabled()) {
> -                    LOG.info("[findBeanManager]: Checking for BeanManager 
> under JNDI key " + CDI_JNDIKEY_BEANMANAGER_APP);
> -                }
> +            } catch (NamingException e) {
> +                LOG.warn("[findBeanManager]: Lookup failed.", e);
> +                LOG.info("[findBeanManager]: Checking for BeanManager under 
> JNDI key " + CDI_JNDIKEY_BEANMANAGER_APP);
>                  bm = (BeanManager) 
> initialContext.lookup(CdiObjectFactory.CDI_JNDIKEY_BEANMANAGER_APP);
>              }
> -            if (LOG.isInfoEnabled()) {
> -                LOG.info("[findBeanManager]: BeanManager found.");
> -            }
> +            LOG.info("[findBeanManager]: BeanManager found.");
>              return bm;
> -        } catch ( NamingException e ) {
> +        } catch (NamingException e) {
>              LOG.error("Could not get BeanManager from JNDI context", e);
>          }
>          return null;
> @@ -102,7 +94,7 @@ public class CdiObjectFactory extends Ob
>  
>      @Override
>      @SuppressWarnings("unchecked")
> -    public Object buildBean( String className, Map<String, Object> 
> extraContext, boolean injectInternal )
> +    public Object buildBean(String className, Map<String, Object> 
> extraContext, boolean injectInternal)
>              throws Exception {
>  
>          Class<?> clazz = getClassInstance(className);
> @@ -124,19 +116,16 @@ public class CdiObjectFactory extends Ob
>       * will be created.
>       *
>       * @param clazz The class to get a InjectionTarget instance for.
> -     *
>       * @return if found in cache, an existing instance. A new instance 
> otherwise.
>       */
> -    protected InjectionTarget<?> getInjectionTarget( Class<?> clazz ) {
> +    protected InjectionTarget<?> getInjectionTarget(Class<?> clazz) {
>          InjectionTarget<?> result;
> -        synchronized ( this ) {
> -            result = injectionTargetCache.get(clazz);
> -            if (result == null) {
> -                result = 
> beanManager.createInjectionTarget(beanManager.createAnnotatedType(clazz));
> -                injectionTargetCache.put(clazz, result);
> -            }
> -
> +        result = injectionTargetCache.get(clazz);
> +        if (result == null) {
> +            result = 
> beanManager.createInjectionTarget(beanManager.createAnnotatedType(clazz));
> +            injectionTargetCache.put(clazz, result);
>          }
> +
>          return result;
>      }
>  
> @@ -144,11 +133,10 @@ public class CdiObjectFactory extends Ob
>       * Simple wrapper for CreationalContext creation.
>       *
>       * @param beanManager the BeanManager to use for creating the context.
> -     *
>       * @return the context to use, if given BeanManager was not 
> <tt>null</tt>. <tt>null</tt> otherwise.
>       */
>      @SuppressWarnings("unchecked")
> -    protected CreationalContext buildNonContextualCreationalContext( 
> BeanManager beanManager ) {
> +    protected CreationalContext 
> buildNonContextualCreationalContext(BeanManager beanManager) {
>          return beanManager != null ? 
> beanManager.createCreationalContext(null) : null;
>      }
>  }
> 
> 

-- 
René Gielen
IT-Neering.net
Saarstrasse 100, 52062 Aachen, Germany
Tel: +49-(0)241-4010770
Fax: +49-(0)241-4010771
Cel: +49-(0)163-2844164
http://twitter.com/rgielen

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