protected static String storePathForFile(StoreLocation location, java.io.File file) {
String path = file.getPath();
if (location != null) {
String locationPath = location.getFile().getPath();
if (path.startsWith(locationPath))
path = path.substring(locationPath.length(), path.length());
}
return path;
}
/**
* @param fileName the name of the file to find
* @param checkClassPath if <code>true</code>, the class path is first searched for the file,
* otherwise the class path is not searched unless it's one of the explicit paths in the cache
* search directories
* @return a handle to the requested file if it exists in the cache, otherwise null
* @throws IllegalArgumentException if <code>fileName</code> is null
*/
public java.net.URL findFile(String fileName, boolean checkClassPath) {
if (fileName == null) {
String message = Logging.getMessage("nullValue.FilePathIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (checkClassPath) {
java.net.URL url = this.getClass().getClassLoader().getResource(fileName);
if (url != null) return url;
// Check for a thread context class loader. This allows the file store to find resources in a
// case
// in which different parts of the application are handled by different class loaders.
ClassLoader tccl = Thread.currentThread().getContextClassLoader();
if (tccl != null) {
url = tccl.getResource(fileName);
if (url != null) return url;
}
}
for (StoreLocation location : this.readLocations) {
java.io.File dir = location.getFile();
if (!dir.exists()) continue;
java.io.File file = new java.io.File(makeAbsolutePath(dir, fileName));
if (file.exists()) {
try {
if (location.isMarkWhenUsed()) markFileUsed(file);
else markFileUsed(file.getParentFile());
return file.toURI().toURL();
} catch (java.net.MalformedURLException e) {
Logging.logger()
.log(
Level.SEVERE,
Logging.getMessage("FileStore.ExceptionCreatingURLForFile", file.getPath()),
e);
}
}
}
return null;
}
protected void buildReadPaths(org.w3c.dom.Node dataFileStoreNode) {
javax.xml.xpath.XPathFactory pathFactory = javax.xml.xpath.XPathFactory.newInstance();
javax.xml.xpath.XPath pathFinder = pathFactory.newXPath();
try {
org.w3c.dom.NodeList locationNodes =
(org.w3c.dom.NodeList)
pathFinder.evaluate(
"/dataFileStore/readLocations/location",
dataFileStoreNode.getFirstChild(),
javax.xml.xpath.XPathConstants.NODESET);
for (int i = 0; i < locationNodes.getLength(); i++) {
org.w3c.dom.Node location = locationNodes.item(i);
String prop = pathFinder.evaluate("@property", location);
String wwDir = pathFinder.evaluate("@wwDir", location);
String append = pathFinder.evaluate("@append", location);
String isInstall = pathFinder.evaluate("@isInstall", location);
String isMarkWhenUsed = pathFinder.evaluate("@isMarkWhenUsed", location);
String path = buildLocationPath(prop, append, wwDir);
if (path == null) {
Logging.logger()
.log(
Level.WARNING,
"FileStore.LocationInvalid",
prop != null ? prop : Logging.getMessage("generic.Unknown"));
continue;
}
StoreLocation oldStore = this.storeLocationFor(path);
if (oldStore != null) // filter out duplicates
continue;
// Even paths that don't exist or are otherwise problematic are added to the list because
// they may
// become readable during the session. E.g., removable media. So add them to the search
// list.
java.io.File pathFile = new java.io.File(path);
if (pathFile.exists() && !pathFile.isDirectory()) {
Logging.logger().log(Level.WARNING, "FileStore.LocationIsFile", pathFile.getPath());
}
boolean pathIsInstall =
isInstall != null && (isInstall.contains("t") || isInstall.contains("T"));
StoreLocation newStore = new StoreLocation(pathFile, pathIsInstall);
// If the input parameter "markWhenUsed" is null or empty, then the StoreLocation should
// keep its
// default value. Otherwise the store location value is set to true when the input parameter
// contains
// "t", and is set to false otherwise.
if (isMarkWhenUsed != null && isMarkWhenUsed.length() > 0)
newStore.setMarkWhenUsed(isMarkWhenUsed.toLowerCase().contains("t"));
this.readLocations.add(newStore);
}
} catch (javax.xml.xpath.XPathExpressionException e) {
String message = Logging.getMessage("FileStore.ExceptionReadingConfigurationFile");
Logging.logger().severe(message);
throw new IllegalStateException(message, e);
}
}