/*
- * Copyright 2005 the original author or authors.
+ * Copyright 2005-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* 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.wamblee.general;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.Properties;
-
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
+
import org.wamblee.io.ClassPathResource;
import org.wamblee.io.InputResource;
+import java.io.IOException;
+import java.io.InputStream;
+
+import java.util.Properties;
+
/**
* The standard means to obtain the bean factory. This works by reading a
* property {@value #BEAN_FACTORY_CLASS} from a property file named
* a no-arg constructor.
*/
public final class BeanKernel {
-
private static final Log LOG = LogFactory.getLog(BeanKernel.class);
/**
BEAN_FACTORY = lookupBeanFactory(BEAN_KERNEL_PROP_FILE);
}
}
+
return BEAN_FACTORY;
}
/**
* Lookup the bean factory based on the properties file.
*
+ *
* @return Bean factory.
+ *
*/
static BeanFactory lookupBeanFactory(String aPropertyFilename) {
InputResource resource = new ClassPathResource(aPropertyFilename);
InputStream is;
+
try {
is = resource.getInputStream();
} catch (IOException e) {
throw new BeanFactoryException("Cannot open resource " + resource,
- e);
+ e);
}
+
try {
Properties props = new Properties();
props.load(is);
+
String className = props.getProperty(BEAN_FACTORY_CLASS);
Class beanFactory = Class.forName(className);
+
return (BeanFactory) beanFactory.newInstance();
} catch (Exception e) {
- throw new BeanFactoryException("Cannot read from resource "
- + resource, e);
+ throw new BeanFactoryException("Cannot read from resource " +
+ resource, e);
} finally {
try {
is.close();