public String toString() {
return "FSDir{"
+ "dir="
+ dir
+ ", children="
+ (children == null ? null : Arrays.asList(children))
+ "}";
}
/** Find the corresponding meta data file from a given block file */
private static File findMetaFile(final File blockFile) throws IOException {
final String prefix = blockFile.getName() + "_";
final File parent = blockFile.getParentFile();
File[] matches =
parent.listFiles(
new FilenameFilter() {
public boolean accept(File dir, String name) {
return dir.equals(parent)
&& name.startsWith(prefix)
&& name.endsWith(METADATA_EXTENSION);
}
});
if (matches == null || matches.length == 0) {
throw new IOException("Meta file not found, blockFile=" + blockFile);
} else if (matches.length > 1) {
throw new IOException("Found more than one meta files: " + Arrays.asList(matches));
}
return matches[0];
}