public AssetInfo locate(AssetManager manager, AssetKey key) {
String name = key.getName();
File file = (root != null) ? new File(root, name) : new File(name);
if (file.exists() && file.isFile()) {
try {
// Now, check asset name requirements
String canonical = file.getCanonicalPath();
String absolute = file.getAbsolutePath();
if (!canonical.endsWith(absolute)) {
throw new AssetNotFoundException(
"Asset name doesn't match requirements.\n"
+ "\""
+ canonical
+ "\" doesn't match \""
+ absolute
+ "\"");
}
} catch (IOException ex) {
throw new AssetLoadException("Failed to get file canonical path " + file, ex);
}
AssetInfo fileAssetInfo = new AssetInfoFile(manager, key, file);
return UncompressedAssetInfo.create(fileAssetInfo);
} else {
return null;
}
}
public void setRootPath(String rootPath) {
if (rootPath == null) {
throw new IllegalArgumentException("rootPath is required: use '\' to register any file");
} else if (rootPath == "/") {
// any file is okay
root = null;
return;
}
try {
root = new File(rootPath).getCanonicalFile();
if (!root.isDirectory()) {
throw new IllegalArgumentException("Given root path \"" + root + "\" is not a directory");
}
} catch (IOException ex) {
throw new AssetLoadException("Root path is invalid", ex);
}
}