private void scan() throws OperationFailedException {
try {
scanLock.lockInterruptibly();
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
return;
}
try {
if (scanEnabled) { // confirm the scan is still wanted
log.tracef(
"Scanning directory %s for deployment content changes",
deploymentDir.getAbsolutePath());
final List<ModelNode> updates = new ArrayList<ModelNode>();
Map<String, File> foundDeployed = new HashMap<String, File>();
Set<String> newlyAdded = new HashSet<String>();
Set<String> registeredDeployments = getDeploymentNames();
scanDirectory(deploymentDir, updates, foundDeployed, newlyAdded, registeredDeployments);
// Add remove actions to the plan for anything we count as
// deployed that we didn't find on the scan
Set<String> toRemove = new HashSet<String>(deployed);
toRemove.removeAll(foundDeployed.keySet());
toRemove.removeAll(newlyAdded); // in case user removed the marker and added replacement
for (String missing : toRemove) {
updates.add(getUndeployOperation(missing));
updates.add(getRemoveOperation(missing));
}
if (updates.size() > 0) {
if (log.isDebugEnabled()) {
for (ModelNode update : updates) {
log.debugf("Deployment scan of [%s] found update action [%s]", deploymentDir, update);
}
}
Operation composite = getCompositeUpdate(updates);
ModelNode results = serverController.execute(composite);
// System.out.println(composite);
// System.out.println(results);
// FIXME deal with result
}
// Throw away any found marker files that we didn't already know about
Set<String> validFinds = cleanSpuriousMarkerFiles(foundDeployed);
validFinds.addAll(newlyAdded);
this.deployed = validFinds;
log.tracef("Scan complete");
}
} finally {
scanLock.unlock();
}
}
private Set<String> getDeploymentNames() throws CancellationException, OperationFailedException {
ModelNode op = Util.getEmptyOperation(READ_CHILDREN_NAMES_OPERATION, new ModelNode());
op.get(CHILD_TYPE).set(DEPLOYMENT);
ModelNode response = serverController.execute(OperationBuilder.Factory.create(op).build());
// TODO use the proper response structure
ModelNode result = response.get("result");
Set<String> deploymentNames = new HashSet<String>();
if (result.isDefined()) {
List<ModelNode> deploymentNodes = result.asList();
for (ModelNode node : deploymentNodes) {
deploymentNames.add(node.asString());
}
}
return deploymentNames;
}
/** This method isn't private solely to allow a unit test in the same package to call it */
void scan() {
try {
scanLock.lockInterruptibly();
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
return;
}
try {
if (scanEnabled) { // confirm the scan is still wanted
log.tracef(
"Scanning directory %s for deployment content changes",
deploymentDir.getAbsolutePath());
List<ScannerTask> scannerTasks = new ArrayList<ScannerTask>();
final Set<String> registeredDeployments = getDeploymentNames();
final Set<String> toRemove = new HashSet<String>(deployed.keySet());
scanDirectory(deploymentDir, scannerTasks, registeredDeployments, toRemove);
// Add remove actions to the plan for anything we count as
// deployed that we didn't find on the scan
for (String missing : toRemove) {
// TODO -- minor -- this assumes the deployment was in the root deploymentDir,
// not a child dir, and therefore puts the '.undeploying' file there
File parent = deploymentDir;
scannerTasks.add(new UndeployTask(missing, parent));
}
if (scannerTasks.size() > 0) {
List<ModelNode> updates = new ArrayList<ModelNode>(scannerTasks.size());
for (ScannerTask task : scannerTasks) {
final ModelNode update = task.getUpdate();
if (log.isDebugEnabled()) {
log.debugf("Deployment scan of [%s] found update action [%s]", deploymentDir, update);
}
updates.add(update);
}
while (!updates.isEmpty()) {
ModelNode composite = getCompositeUpdate(updates);
final ModelNode results =
serverController.execute(OperationBuilder.Factory.create(composite).build());
final List<Property> resultList = results.get(RESULT).asPropertyList();
final List<ModelNode> toRetry = new ArrayList<ModelNode>();
final List<ScannerTask> retryTasks = new ArrayList<ScannerTask>();
for (int i = 0; i < resultList.size(); i++) {
final ModelNode result = resultList.get(i).getValue();
final ScannerTask task = scannerTasks.get(i);
final ModelNode outcome = result.get(OUTCOME);
if (outcome.isDefined() && SUCCESS.equals(outcome.asString())) {
task.handleSuccessResult();
} else if (outcome.isDefined() && CANCELLED.equals(outcome.asString())) {
toRetry.add(updates.get(i));
retryTasks.add(task);
} else {
task.handleFailureResult(result);
}
}
updates = toRetry;
scannerTasks = retryTasks;
}
}
log.tracef("Scan complete");
}
} finally {
scanLock.unlock();
}
}
