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Posted to commits@openjpa.apache.org by al...@apache.org on 2009/06/02 01:29:52 UTC
svn commit: r780881 - in
/openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa:
enhance/Reflection.java kernel/AbstractBrokerFactory.java
Author: allee8285
Date: Mon Jun 1 23:29:51 2009
New Revision: 780881
URL: http://svn.apache.org/viewvc?rev=780881&view=rev
Log:
OPENJPA-1113 - Cache Reflection artifacts for performance improvement.
Modified:
openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/enhance/Reflection.java
openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/AbstractBrokerFactory.java
Modified: openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/enhance/Reflection.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/enhance/Reflection.java?rev=780881&r1=780880&r2=780881&view=diff
==============================================================================
--- openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/enhance/Reflection.java (original)
+++ openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/enhance/Reflection.java Mon Jun 1 23:29:51 2009
@@ -21,20 +21,24 @@
import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.security.AccessController;
+import java.util.Collection;
import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
+import java.util.WeakHashMap;
import org.apache.commons.lang.StringUtils;
import org.apache.openjpa.lib.util.J2DoPrivHelper;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.lib.util.Reflectable;
-import org.apache.openjpa.util.GeneralException;
-import org.apache.openjpa.util.UserException;
+import org.apache.openjpa.util.GeneralException;
+import org.apache.openjpa.util.UserException;
/**
* Reflection utilities used to support and augment enhancement. Used both
@@ -47,14 +51,89 @@
private static final Localizer _loc = Localizer.forPackage
(Reflection.class);
+ // Weak HashMap caches of getter/setter/beanProperty methods
+ private static Map<Class<?>, Map<String, Method>> getterMethodCache =
+ new WeakHashMap<Class<?>, Map<String, Method>>();
+ private static Map<Class<?>, Map<String, Method>> setterMethodCache =
+ new WeakHashMap<Class<?>, Map<String, Method>>();
+ private static Map<Class<?>, Set<String>> beanPropertiesNameCache =
+ new WeakHashMap<Class<?>, Set<String>>();
+
+ private static Method getGetterMethod(Class<?> cls, String prop) {
+ Method rtnMethod = null;
+ Map<String, Method> clsMap = getterMethodCache.get(cls);
+ if (clsMap != null) {
+ rtnMethod = clsMap.get(prop);
+ }
+ return rtnMethod;
+ }
+
+ private static void setGetterMethod(Class<?> cls, String prop,
+ Method method) {
+ Map<String, Method> clsMap = getterMethodCache.get(cls);
+ if (clsMap == null) {
+ clsMap = new HashMap<String, Method>();
+ getterMethodCache.put(cls, clsMap);
+ }
+ clsMap.put(prop, method);
+ }
+
+ private static Method getSetterMethod(Class<?> cls, String prop) {
+ Method rtnMethod = null;
+ Map<String, Method> clsMap = setterMethodCache.get(cls);
+ if (clsMap != null) {
+ rtnMethod = clsMap.get(prop);
+ }
+ return rtnMethod;
+ }
+
+ private static void setSetterMethod(Class<?> cls, String prop,
+ Method method) {
+ Map<String, Method> clsMap = setterMethodCache.get(cls);
+ if (clsMap == null) {
+ clsMap = new HashMap<String, Method>();
+ setterMethodCache.put(cls, clsMap);
+ }
+ clsMap.put(prop, method);
+ }
+
+ public static void flushCaches() {
+ getterMethodCache.clear();
+ setterMethodCache.clear();
+ beanPropertiesNameCache.clear();
+ }
+
+ public static void flushCaches(Collection<ClassLoader> loaders) {
+ if (loaders.size() > 0) {
+ flushCache(loaders, getterMethodCache);
+ flushCache(loaders, setterMethodCache);
+ flushCache(loaders, beanPropertiesNameCache);
+ }
+ }
+
+ private static void flushCache(Collection<ClassLoader> loaders,
+ Map<Class<?>, ?> cache) {
+ for (Iterator<Class<?>> itr = cache.keySet().iterator();
+ itr.hasNext();) {
+ Class<?> cls = itr.next();
+ ClassLoader sLoader = cls.getClassLoader();
+ if (loaders.contains(sLoader)) {
+ itr.remove();
+ }
+ }
+ }
+
/**
* Return the getter method matching the given property name, optionally
* throwing an exception if none.
*/
public static Method findGetter(Class cls, String prop, boolean mustExist) {
+ Method m = getGetterMethod(cls, prop);
+ if (m != null) {
+ return m;
+ }
prop = StringUtils.capitalize(prop);
String name = "get" + prop;
- Method m;
try {
// this algorithm searches for a get<prop> or is<prop> method in
// a breadth-first manner.
@@ -62,12 +141,15 @@
c = c.getSuperclass()) {
m = getDeclaredMethod(c, name, null);
if (m != null) {
+ setGetterMethod(cls, prop, m);
return m;
} else {
m = getDeclaredMethod(c, "is" + prop, null);
if (m != null && (m.getReturnType() == boolean.class
- || m.getReturnType() == Boolean.class))
+ || m.getReturnType() == Boolean.class)) {
+ setGetterMethod(cls, prop, m);
return m;
+ }
}
}
} catch (Exception e) {
@@ -95,14 +177,19 @@
*/
public static Method findSetter(Class cls, String prop, Class param,
boolean mustExist) {
+ Method m = getSetterMethod(cls, prop);
+ if (m != null) {
+ return m;
+ }
String name = "set" + StringUtils.capitalize(prop);
- Method m;
try {
for (Class c = cls; c != null && c != Object.class;
c = c.getSuperclass()) {
m = getDeclaredMethod(c, name, param);
- if (m != null)
+ if (m != null) {
+ setSetterMethod(cls, prop, m);
return m;
+ }
}
} catch (Exception e) {
throw new GeneralException(e);
@@ -774,10 +861,14 @@
public static Set<String> getBeanStylePropertyNames(Class c) {
if (c == null)
return Collections.EMPTY_SET;
+ Set<String> result = beanPropertiesNameCache.get(c);
+ if (result != null) {
+ return result;
+ }
Method[] methods = c.getMethods();
if (methods == null || methods.length < 2)
return Collections.EMPTY_SET;
- Set<String> result = new TreeSet<String>();
+ /*Set<String>*/ result = new TreeSet<String>();
for (Method m : methods) {
if (m.getName().startsWith("get")) {
if (!canReflect(m))
@@ -795,6 +886,7 @@
}
}
}
+ beanPropertiesNameCache.put(c, result);
return result;
}
Modified: openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/AbstractBrokerFactory.java
URL: http://svn.apache.org/viewvc/openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/AbstractBrokerFactory.java?rev=780881&r1=780880&r2=780881&view=diff
==============================================================================
--- openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/AbstractBrokerFactory.java (original)
+++ openjpa/trunk/openjpa-kernel/src/main/java/org/apache/openjpa/kernel/AbstractBrokerFactory.java Mon Jun 1 23:29:51 2009
@@ -31,23 +31,26 @@
import java.util.Properties;
import java.util.Set;
import java.util.TreeSet;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.locks.ReentrantLock;
import javax.transaction.Status;
import javax.transaction.Synchronization;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
-import org.apache.commons.lang.StringUtils;
import org.apache.commons.collections.set.MapBackedSet;
-import org.apache.openjpa.conf.OpenJPAConfiguration;
-import org.apache.openjpa.conf.OpenJPAVersion;
+import org.apache.commons.lang.StringUtils;
import org.apache.openjpa.conf.BrokerValue;
+import org.apache.openjpa.conf.OpenJPAConfiguration;
import org.apache.openjpa.conf.OpenJPAConfigurationImpl;
+import org.apache.openjpa.conf.OpenJPAVersion;
import org.apache.openjpa.datacache.DataCacheStoreManager;
import org.apache.openjpa.ee.ManagedRuntime;
+import org.apache.openjpa.enhance.ManagedClassSubclasser;
import org.apache.openjpa.enhance.PCRegistry;
import org.apache.openjpa.enhance.PersistenceCapable;
-import org.apache.openjpa.enhance.ManagedClassSubclasser;
+import org.apache.openjpa.enhance.Reflection;
import org.apache.openjpa.event.BrokerFactoryEvent;
import org.apache.openjpa.event.RemoteCommitEventManager;
import org.apache.openjpa.lib.conf.Configuration;
@@ -55,9 +58,7 @@
import org.apache.openjpa.lib.log.Log;
import org.apache.openjpa.lib.util.J2DoPrivHelper;
import org.apache.openjpa.lib.util.Localizer;
-import java.util.concurrent.ConcurrentHashMap;
import org.apache.openjpa.lib.util.concurrent.ConcurrentReferenceHashSet;
-import java.util.concurrent.locks.ReentrantLock;
import org.apache.openjpa.meta.MetaDataRepository;
import org.apache.openjpa.util.GeneralException;
import org.apache.openjpa.util.InvalidStateException;
@@ -410,7 +411,7 @@
PCRegistry.removeRegisterClassListener
(_conf.getMetaDataRepositoryInstance());
}
-
+ Reflection.flushCaches(_pcClassLoaders);
_conf.close();
_closed = true;
Log log = _conf.getLog(OpenJPAConfiguration.LOG_RUNTIME);