/** Sets the system metadata on the given disk (not extended MD) */
private void setSysMetadata(
SystemMetadata systemMD, Disk disk, ConnectionFactory.DiskConnection[] connections) {
// only insert if layoutMapId still maps to this disk
String sysCacheId = CacheClientInterface.SYSTEM_CACHE;
if (usesDisk(systemMD.getLayoutMapId(), sysCacheId, disk)) {
// set the system metadata
setMetadata(sysCacheId, connections, systemMD.getOID(), systemMD);
}
}
/**
* Called to populate caches on given disk (not used during STORE). Inserts into BOTH the (1)
* system cache, with the given systemMD, and the (2) non-system cache designated by the cacheId.
*
* @param systemMD extracted from the fragment file
* @param cacheID cache in which to store the md
* @param disk only insert into cache on this disk
*/
public void setMetadata(SystemMetadata systemMD, String cacheId, Disk disk) {
LOG.fine("setMetadata for oid " + systemMD.getOID() + " on disk [" + disk + "]");
// get connection to the desired disk
ConnectionFactory.DiskConnection[] connections = makeConn(disk);
// set system metadata
setSysMetadata(systemMD, disk, connections);
// if cacheId represents system cache, we're done
if (cacheId == null || cacheId.equals(CacheClientInterface.SYSTEM_CACHE)) {
return;
}
setExtMetadata(systemMD.getOID(), cacheId, disk, connections);
}
/**
* This <code>setMetadata</code> method is the OA callback to populate a local cache.
*
* @param <code>SystemMetadata</code> are the SystemMetadata extracted from the local fragment
* @param <code>Disk</code> is the disk containing the fragment
* <p>note: this method DEPRECIATED, crawl uses above methods instead. Kept here for reference
* until replacement methods are validated.
*/
public void setMetadata(SystemMetadata systemMD, byte[] MDField, Disk disk) {
if (LOG.isLoggable(Level.FINE)) {
LOG.fine(
"setMetadata has been called for oid " + systemMD.getOID() + " on disk [" + disk + "]");
}
// Precompute the connection
ConnectionFactory.DiskConnection[] connections = new ConnectionFactory.DiskConnection[1];
connections[0] = ConnectionFactory.getConnection(disk);
// Check if the system metadata should be set
ArrayList disks =
MDDiskAbstraction.getInstance((byte) 0)
.getUsedDisksFromMapId(systemMD.getLayoutMapId(), CacheClientInterface.SYSTEM_CACHE);
if (disks.contains(disk)) {
setMetadata(CacheClientInterface.SYSTEM_CACHE, connections, systemMD.getOID(), systemMD);
}
try {
// Find the cacheId
MDHeader header = new MDHeader(MDField);
String cacheId = header.getCacheId();
if (cacheId != null) {
disks =
MDDiskAbstraction.getInstance((byte) 0)
.getUsedDisksFromMapId(systemMD.getLayoutMapId(), cacheId);
if (disks.contains(disk)) {
CacheRecord metadataObject =
CacheManager.getInstance()
.getClientInterface(cacheId)
.generateMetadataObject(systemMD.getOID());
// Set the metadata
setMetadata(cacheId, connections, systemMD.getOID(), metadataObject);
}
}
} catch (IOException e) {
LOG.log(Level.SEVERE, "Failed to update the metadata [" + e.getMessage() + "]", e);
} catch (EMDException e) {
LOG.log(Level.SEVERE, "Failed to update the metadata [" + e.getMessage() + "]", e);
}
}
/**
* Sets the system metadata on the given disk (not extended MD)
*
* @param systemMD extracted from the fragment file
* @param disk only insert into cache on this disk
*/
public void setSysMetadata(SystemMetadata systemMD, Disk disk) {
LOG.fine("setSysMetadata for oid " + systemMD.getOID() + " on disk [" + disk + "]");
setSysMetadata(systemMD, disk, makeConn(disk));
}