/**
* Save a repository connection object.
*
* @param object is the object to save.
* @return true if the object was created, false otherwise.
*/
public boolean save(IRepositoryConnection object) throws ManifoldCFException {
StringSetBuffer ssb = new StringSetBuffer();
ssb.add(getRepositoryConnectionsKey());
ssb.add(getRepositoryConnectionKey(object.getName()));
StringSet cacheKeys = new StringSet(ssb);
while (true) {
// Catch deadlock condition
long sleepAmt = 0L;
try {
ICacheHandle ch = cacheManager.enterCache(null, cacheKeys, getTransactionID());
try {
beginTransaction();
try {
// performLock();
// Notify of a change to the configuration
ManifoldCF.noteConfigurationChange();
boolean isNew = object.getIsNew();
// See whether the instance exists
ArrayList params = new ArrayList();
String query =
buildConjunctionClause(
params,
new ClauseDescription[] {new UnitaryClause(nameField, object.getName())});
IResultSet set =
performQuery(
"SELECT * FROM " + getTableName() + " WHERE " + query + " FOR UPDATE",
params,
null,
null);
HashMap values = new HashMap();
values.put(descriptionField, object.getDescription());
values.put(classNameField, object.getClassName());
values.put(groupNameField, object.getACLAuthority());
values.put(maxCountField, new Long((long) object.getMaxConnections()));
String configXML = object.getConfigParams().toXML();
values.put(configField, configXML);
boolean notificationNeeded = false;
boolean isCreated;
if (set.getRowCount() > 0) {
// If the object is supposedly new, it is bad that we found one that already exists.
if (isNew)
throw new ManifoldCFException(
"Repository connection '" + object.getName() + "' already exists");
isCreated = false;
IResultRow row = set.getRow(0);
String oldXML = (String) row.getValue(configField);
if (oldXML == null || !oldXML.equals(configXML)) notificationNeeded = true;
// Update
params.clear();
query =
buildConjunctionClause(
params,
new ClauseDescription[] {new UnitaryClause(nameField, object.getName())});
performUpdate(values, " WHERE " + query, params, null);
throttleSpecManager.deleteRows(object.getName());
} else {
// If the object is not supposed to be new, it is bad that we did not find one.
if (!isNew)
throw new ManifoldCFException(
"Repository connection '" + object.getName() + "' no longer exists");
isCreated = true;
// Insert
values.put(nameField, object.getName());
// We only need the general key because this is new.
performInsert(values, null);
}
// Write secondary table stuff
throttleSpecManager.writeRows(object.getName(), object);
// If notification required, do it.
if (notificationNeeded) {
IJobManager jobManager = JobManagerFactory.make(threadContext);
jobManager.noteConnectionChange(object.getName());
}
cacheManager.invalidateKeys(ch);
return isCreated;
} catch (ManifoldCFException e) {
signalRollback();
throw e;
} catch (Error e) {
signalRollback();
throw e;
} finally {
endTransaction();
}
} finally {
cacheManager.leaveCache(ch);
}
} catch (ManifoldCFException e) {
// Is this a deadlock exception? If so, we want to try again.
if (e.getErrorCode() != ManifoldCFException.DATABASE_TRANSACTION_ABORT) throw e;
sleepAmt = getSleepAmt();
} finally {
sleepFor(sleepAmt);
}
}
}
/** Install the manager. */
public void install() throws ManifoldCFException {
// First, get the authority manager table name and name column
IAuthorityGroupManager authMgr = AuthorityGroupManagerFactory.make(threadContext);
// Always use a loop, and no transaction, as we may need to retry due to upgrade
while (true) {
Map existing = getTableSchema(null, null);
if (existing == null) {
// Install the "objects" table.
HashMap map = new HashMap();
map.put(nameField, new ColumnDescription("VARCHAR(32)", true, false, null, null, false));
map.put(
descriptionField,
new ColumnDescription("VARCHAR(255)", false, true, null, null, false));
map.put(
classNameField, new ColumnDescription("VARCHAR(255)", false, false, null, null, false));
map.put(
groupNameField,
new ColumnDescription(
"VARCHAR(32)",
false,
true,
authMgr.getTableName(),
authMgr.getGroupNameColumn(),
false));
map.put(maxCountField, new ColumnDescription("BIGINT", false, false, null, null, false));
map.put(configField, new ColumnDescription("LONGTEXT", false, true, null, null, false));
performCreate(map, null);
} else {
// Upgrade code
ColumnDescription cd = (ColumnDescription) existing.get(groupNameField);
if (cd == null) {
Map addMap = new HashMap();
addMap.put(
groupNameField,
new ColumnDescription(
"VARCHAR(32)",
false,
true,
authMgr.getTableName(),
authMgr.getGroupNameColumn(),
false));
performAlter(addMap, null, null, null);
}
// Get rid of the authorityName field. When we do this we need to copy into the group name
// field, adding groups if they don't yet exist first
cd = (ColumnDescription) existing.get(authorityNameField);
if (cd != null) {
ArrayList params = new ArrayList();
IResultSet set =
performQuery(
"SELECT " + nameField + "," + authorityNameField + " FROM " + getTableName(),
null,
null,
null);
for (int i = 0; i < set.getRowCount(); i++) {
IResultRow row = set.getRow(i);
String repoName = (String) row.getValue(nameField);
String authName = (String) row.getValue(authorityNameField);
if (authName != null && authName.length() > 0) {
// Attempt to create a matching auth group. This will fail if the group
// already exists
IAuthorityGroup grp = authMgr.create();
grp.setName(authName);
try {
authMgr.save(grp);
} catch (ManifoldCFException e) {
if (e.getErrorCode() == ManifoldCFException.INTERRUPTED) throw e;
// Fall through; the row exists already
}
Map<String, String> map = new HashMap<String, String>();
map.put(groupNameField, authName);
params.clear();
String query =
buildConjunctionClause(
params, new ClauseDescription[] {new UnitaryClause(nameField, repoName)});
performUpdate(map, " WHERE " + query, params, null);
}
}
List<String> deleteList = new ArrayList<String>();
deleteList.add(authorityNameField);
performAlter(null, null, deleteList, null);
}
}
// Install dependent tables.
historyManager.install(getTableName(), nameField);
throttleSpecManager.install(getTableName(), nameField);
// Index management
IndexDescription authorityIndex = new IndexDescription(false, new String[] {groupNameField});
IndexDescription classIndex = new IndexDescription(false, new String[] {classNameField});
// Get rid of indexes that shouldn't be there
Map indexes = getTableIndexes(null, null);
Iterator iter = indexes.keySet().iterator();
while (iter.hasNext()) {
String indexName = (String) iter.next();
IndexDescription id = (IndexDescription) indexes.get(indexName);
if (authorityIndex != null && id.equals(authorityIndex)) authorityIndex = null;
else if (classIndex != null && id.equals(classIndex)) classIndex = null;
else if (indexName.indexOf("_pkey") == -1)
// This index shouldn't be here; drop it
performRemoveIndex(indexName);
}
// Add the ones we didn't find
if (authorityIndex != null) performAddIndex(null, authorityIndex);
if (classIndex != null) performAddIndex(null, classIndex);
break;
}
}
public void run() {
resetManager.registerMe();
try {
// Create a thread context object.
IThreadContext threadContext = ThreadContextFactory.make();
IJobManager jobManager = JobManagerFactory.make(threadContext);
IRepositoryConnectionManager connectionMgr =
RepositoryConnectionManagerFactory.make(threadContext);
IDBInterface database =
DBInterfaceFactory.make(
threadContext,
ManifoldCF.getMasterDatabaseName(),
ManifoldCF.getMasterDatabaseUsername(),
ManifoldCF.getMasterDatabasePassword());
// Loop
while (true) {
// Do another try/catch around everything in the loop
try {
// Before we begin, conditionally reset
resetManager.waitForReset(threadContext);
// Accumulate the wait before doing the next check.
// We start with 10 seconds, which is the maximum. If there's a service request
// that's faster than that, we'll adjust the time downward.
long waitTime = 10000L;
if (Logging.threads.isDebugEnabled()) Logging.threads.debug("Checking for deleting jobs");
// See if there are any starting jobs.
// Note: Since this following call changes the job state, we must be careful to reset it
// on any kind of failure.
JobDeleteRecord[] deleteJobs = jobManager.getJobsReadyForDelete(processID);
try {
if (deleteJobs.length == 0) {
ManifoldCF.sleep(waitTime);
continue;
}
if (Logging.threads.isDebugEnabled())
Logging.threads.debug(
"Found " + Integer.toString(deleteJobs.length) + " jobs ready to be deleted");
long currentTime = System.currentTimeMillis();
// Loop through jobs
int i = 0;
while (i < deleteJobs.length) {
JobDeleteRecord jsr = deleteJobs[i++];
Long jobID = jsr.getJobID();
try {
jobManager.prepareDeleteScan(jobID);
// Start deleting this job!
jobManager.noteJobDeleteStarted(jobID, currentTime);
jsr.noteStarted();
} catch (ManifoldCFException e) {
if (e.getErrorCode() == ManifoldCFException.INTERRUPTED)
throw new InterruptedException();
if (e.getErrorCode() == ManifoldCFException.DATABASE_CONNECTION_ERROR) throw e;
// We cannot abort the delete startup, but if we fall through, we'll put the job
// back into
// the state whence it came. So, fall through.
Logging.threads.error("Exception tossed: " + e.getMessage(), e);
}
}
} finally {
// Clean up all jobs that did not start
ManifoldCFException exception = null;
int i = 0;
while (i < deleteJobs.length) {
JobDeleteRecord jsr = deleteJobs[i++];
if (!jsr.wasStarted()) {
// Clean up from failed start.
try {
jobManager.resetStartDeleteJob(jsr.getJobID());
} catch (ManifoldCFException e) {
exception = e;
}
}
}
if (exception != null) throw exception;
}
// Sleep for the retry interval.
ManifoldCF.sleep(waitTime);
} catch (ManifoldCFException e) {
if (e.getErrorCode() == ManifoldCFException.INTERRUPTED) break;
if (e.getErrorCode() == ManifoldCFException.DATABASE_CONNECTION_ERROR) {
resetManager.noteEvent();
Logging.threads.error(
"Start delete thread aborting and restarting due to database connection reset: "
+ e.getMessage(),
e);
try {
// Give the database a chance to catch up/wake up
ManifoldCF.sleep(10000L);
} catch (InterruptedException se) {
break;
}
continue;
}
// Log it, but keep the thread alive
Logging.threads.error("Exception tossed: " + e.getMessage(), e);
if (e.getErrorCode() == ManifoldCFException.SETUP_ERROR) {
// Shut the whole system down!
System.exit(1);
}
} catch (InterruptedException e) {
// We're supposed to quit
break;
} catch (OutOfMemoryError e) {
System.err.println("agents process ran out of memory - shutting down");
e.printStackTrace(System.err);
System.exit(-200);
} catch (Throwable e) {
// A more severe error - but stay alive
Logging.threads.fatal("Error tossed: " + e.getMessage(), e);
}
}
} catch (Throwable e) {
// Severe error on initialization
System.err.println("agents process could not start - shutting down");
Logging.threads.fatal("StartDeleteThread initialization error tossed: " + e.getMessage(), e);
System.exit(-300);
}
}