/**
* Retrieves the static resource path for the given Grails resource artifact (controller/taglib
* etc.)
*
* @param resource The Resource
* @param contextPath The additonal context path to prefix
* @return The resource path
*/
public static String getStaticResourcePathForResource(Resource resource, String contextPath) {
if (contextPath == null) contextPath = "";
if (resource == null) return contextPath;
String url;
try {
url = resource.getURL().toString();
} catch (IOException e) {
if (LOG.isDebugEnabled()) {
LOG.debug(
"Error reading URL whilst resolving static resource path from ["
+ resource
+ "]: "
+ e.getMessage(),
e);
}
return contextPath;
}
Matcher m = PLUGIN_RESOURCE_PATTERN.matcher(url);
if (m.find()) {
return (contextPath.length() > 0 ? contextPath + "/" : "") + m.group(1);
}
return contextPath;
}
/**
* Takes a Grails resource (one located inside the grails-app dir) and gets its relative path
* inside the WEB-INF directory when deployed.
*
* @param resource The Grails resource, which is a file inside the grails-app dir
* @return The relative URL of the file inside the WEB-INF dir at deployment time or null if it
* cannot be established
*/
public static String getRelativeInsideWebInf(Resource resource) {
if (resource == null) return null;
try {
String url = resource.getURL().toString();
int i = url.indexOf(WEB_INF);
if (i > -1) {
return url.substring(i);
}
Matcher m = PLUGIN_PATTERN.matcher(url);
if (m.find()) {
return WEB_INF + m.group(1);
}
i = url.lastIndexOf(GRAILS_APP_DIR);
if (i > -1) {
return WEB_INF + "/" + url.substring(i);
}
} catch (IOException e) {
if (LOG.isDebugEnabled()) {
LOG.debug(
"Error reading URL whilst resolving relative path within WEB-INF from ["
+ resource
+ "]: "
+ e.getMessage(),
e);
}
return null;
}
return null;
}
public static boolean isGrailsResource(Resource r) {
try {
return isGrailsPath(r.getURL().getFile());
} catch (IOException e) {
return false;
}
}
public static Resource getViewsDir(Resource resource) {
if (resource == null) return null;
try {
Resource appDir = getAppDir(resource);
return new UrlResource(appDir.getURL().toString() + "/views");
} catch (IOException e) {
if (LOG.isDebugEnabled()) {
LOG.debug(
"Error reading URL whilst resolving views dir from ["
+ resource
+ "]: "
+ e.getMessage(),
e);
}
return null;
}
}
public static Resource getAppDir(Resource resource) {
if (resource == null) return null;
try {
String url = resource.getURL().toString();
int i = url.lastIndexOf(GRAILS_APP_DIR);
if (i > -1) {
url = url.substring(0, i + 10);
return new UrlResource(url);
}
return null;
} catch (MalformedURLException e) {
return null;
} catch (IOException e) {
if (LOG.isDebugEnabled()) {
LOG.debug(
"Error reading URL whilst resolving app dir from [" + resource + "]: " + e.getMessage(),
e);
}
return null;
}
}
