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java.lang.Objectorg.apache.commons.discovery.tools.ResourceUtils
public class ResourceUtils
Mechanisms to locate and load a class. The load methods locate a class only. The find methods locate a class and verify that the class implements an given interface or extends a given class.
Constructor Summary | |
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ResourceUtils()
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Method Summary | |
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static java.lang.String |
getPackageName(java.lang.Class clazz)
Get package name. |
static Resource |
getResource(java.lang.Class spi,
java.lang.String resourceName,
ClassLoaders loaders)
Load the resource resourceName . |
static java.util.Properties |
loadProperties(java.lang.Class spi,
java.lang.String propertiesFileName,
ClassLoaders classLoaders)
Load named property file, optionally qualifed by spi's package name as per Class.getResource. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ResourceUtils()
Method Detail |
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public static java.lang.String getPackageName(java.lang.Class clazz)
public static Resource getResource(java.lang.Class spi, java.lang.String resourceName, ClassLoaders loaders) throws DiscoveryException
resourceName
.
Try each classloader in succession,
until first succeeds, or all fail.
If all fail and resouceName
is not absolute
(doesn't start with '/' character), then retry with
packageName/resourceName
after changing all
'.' to '/'.
resourceName
- The name of the resource to load.
DiscoveryException
public static java.util.Properties loadProperties(java.lang.Class spi, java.lang.String propertiesFileName, ClassLoaders classLoaders) throws DiscoveryException
propertiesFileName
- The property file name.
DiscoveryException
- Thrown if the name of a class implementing
the SPI cannot be found, if the class cannot be loaded and
instantiated, or if the resulting class does not implement
(or extend) the SPI.
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