svn commit: r677554 - /activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/impl/DefaultCamelContext.java

[davsclaus]

Author: davsclaus
Date: Thu Jul 17 03:40:45 2008
New Revision: 677554

URL: http://svn.apache.org/viewvc?rev=677554&view=rev
Log:
CAMEL-732: Will fallback to non JMX lifecycle strategy if not possible to 
create such as missing spring-context.jar in the classpath. Then end-users just 
using camel-core.jar can also use Camel out-of-the-box.

Modified:
    
activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/impl/DefaultCamelContext.java

Modified: 
activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/impl/DefaultCamelContext.java
URL: 
http://svn.apache.org/viewvc/activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/impl/DefaultCamelContext.java?rev=677554&r1=677553&r2=677554&view=diff
==============================================================================
--- 
activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/impl/DefaultCamelContext.java
 (original)
+++ 
activemq/camel/trunk/camel-core/src/main/java/org/apache/camel/impl/DefaultCamelContext.java
 Thu Jul 17 03:40:45 2008
@@ -94,10 +94,27 @@
 
     public DefaultCamelContext() {
         name = NAME_PREFIX + ++nameSuffix;
+
         if (Boolean.getBoolean(JmxSystemPropertyKeys.DISABLED)) {
+            LOG.info("JMX is disabled. Using DefaultLifecycleStrategy.");
             lifecycleStrategy = new DefaultLifecycleStrategy();
         } else {
-            lifecycleStrategy = new InstrumentationLifecycleStrategy();
+            try {
+                LOG.info("JMX enabled. Using 
InstrumentationLifecycleStrategy.");
+                lifecycleStrategy = new InstrumentationLifecycleStrategy();
+            } catch (NoClassDefFoundError e) {
+                // if we can't instantiate the JMX enabled strategy then 
fallback to default
+                // could be because of missing .jars on the classpath
+                LOG.warn("Could not find needed classes for JMX lifecycle 
strategy."
+                    + " Are you missing spring-context.jar by any chance? 
NoClassDefFoundError: " + e.getMessage());
+            } catch (Exception e) {
+                LOG.warn("Could not create JMX lifecycle strategy, caused by: 
" + e.getMessage());
+            }
+            // if not created then fallback to default
+            if (lifecycleStrategy == null) {
+                LOG.warn("Not possible to use JMX lifecycle strategy. Using 
DefaultLifecycleStrategy instead.");
+                lifecycleStrategy = new DefaultLifecycleStrategy();
+            }
         }
     }