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add nfs ping to getMountedFileSystemUsage method

This commit is contained in:
Doug MacEachern 2005-03-15 18:07:41 +00:00
parent 4afa5e179e
commit 6523175e55
1 changed files with 16 additions and 2 deletions
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18
bindings/java/src/net/hyperic/sigar/Sigar.java
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@ -528,17 +528,31 @@ public class Sigar implements SigarProxy {
* This method checks that the given directory is mounted. * This method checks that the given directory is mounted.
* Unlike getFileSystemUsage() which only requires that the * Unlike getFileSystemUsage() which only requires that the
* directory exists within a mounted file system. * directory exists within a mounted file system.
* This method will also check that NFS servers are reachable via RPC
* before attempting to get the file system stats to prevent application
* hang when an NFS server is down.
* @param name Name of the directory on which filesystem is mounted. * @param name Name of the directory on which filesystem is mounted.
* @exception SigarException If given directory is not mounted. * @exception SigarException If given directory is not mounted
* or NFS server is unreachable.
* @see net.hyperic.sigar.Sigar#getFileSystemUsage * @see net.hyperic.sigar.Sigar#getFileSystemUsage
*/ */
public FileSystemUsage getMountedFileSystemUsage(String name) public FileSystemUsage getMountedFileSystemUsage(String name)
throws SigarException { throws SigarException {
if (!getFileSystemMap().isMounted(name)) { FileSystem fs = getFileSystemMap().getMountPoint(name);
if (fs == null) {
throw new SigarException(name + " is not a mounted filesystem"); throw new SigarException(name + " is not a mounted filesystem");
} }
if (fs instanceof NfsFileSystem) {
NfsFileSystem nfs = (NfsFileSystem)fs;
if (!nfs.ping()) {
throw new SigarException(nfs.getHostname() + ":" + name +
" nfs server unreachable");
}
}
return FileSystemUsage.fetch(this, name); return FileSystemUsage.fetch(this, name);
} }