package org.argeo.slc.spring;\r
\r
+import java.io.IOException;\r
+import java.net.URI;\r
+import java.net.URL;\r
import java.util.Map;\r
\r
+import org.apache.commons.logging.Log;\r
+import org.apache.commons.logging.LogFactory;\r
+import org.argeo.slc.core.SlcException;\r
import org.springframework.beans.factory.ListableBeanFactory;\r
+import org.springframework.core.io.DefaultResourceLoader;\r
+import org.springframework.core.io.Resource;\r
\r
public class SpringUtils {\r
+ private final static Log log = LogFactory.getLog(SpringUtils.class);\r
+\r
public static <T> T loadSingleFromContext(ListableBeanFactory context,\r
Class<T> clss) {\r
- Map<String, T> listeners = context.getBeansOfType(clss);\r
- if (listeners.size() == 1) {\r
- return listeners.values().iterator().next();\r
+ Map<String, T> beans = context.getBeansOfType(clss);\r
+ if (beans.size() == 1) {\r
+ return beans.values().iterator().next();\r
} else {\r
return null;\r
}\r
}\r
\r
+ public static Resource getParent(Resource res) {\r
+ try {\r
+ if (res.getURL().getPath().equals("/"))\r
+ return null;\r
+\r
+ String urlStr = res.getURL().toString();\r
+ if (urlStr.charAt(urlStr.length() - 1) == '/')\r
+ urlStr = urlStr.substring(0, urlStr.length() - 2);\r
+\r
+ String parentUrlStr = urlStr.substring(0, urlStr.lastIndexOf('/')) + '/';\r
+ URI uri = new URI(parentUrlStr).normalize();\r
+ return new DefaultResourceLoader(Thread.currentThread()\r
+ .getContextClassLoader()).getResource(uri.toString());\r
+ } catch (Exception e) {\r
+ throw new SlcException("Cannot get parent for resource " + res, e);\r
+ }\r
+ }\r
+\r
+ public static String extractRelativePath(Resource ancestor, Resource child) {\r
+ try {\r
+\r
+ return ancestor.getURI().relativize(child.getURI()).normalize()\r
+ .toString();\r
+ } catch (IOException e) {\r
+ throw new SlcException("Cannot extract relative path of " + child\r
+ + " based on " + ancestor, e);\r
+ }\r
+ }\r
+\r
private SpringUtils() {\r
\r
}\r