import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
-import java.io.*;
-import java.util.*;
+import java.io.File;
+import java.util.Arrays;
+import java.util.Hashtable;
+import java.util.Vector;
import org.jetbrains.annotations.Nullable;
/**
* Mechanism for monitoring and controlling delivery of files to a destination.
- * <p>
- * The DeliveryQueue class maintains lists of DeliveryTasks for a single
+ *
+ * <p>The DeliveryQueue class maintains lists of DeliveryTasks for a single
* destination (a subscription or another data router node) and assigns
* delivery threads to try to deliver them. It also maintains a delivery
* status that causes it to back off on delivery attempts after a failure.
- * <p>
- * If the most recent delivery result was a failure, then no more attempts
+ *
+ * <p>If the most recent delivery result was a failure, then no more attempts
* will be made for a period of time. Initially, and on the first failure
* following a success, this delay will be DeliveryQueueHelper.getInitFailureTimer() (milliseconds).
* If, after this delay, additional failures occur, each failure will
* delivery fails while the delay was active, it will not change the delay
* or change the duration of any subsequent delay.
* If, however, it succeeds, it will cancel the delay.
- * <p>
- * The queue maintains 3 collections of files to deliver: A todo list of
+ *
+ * <p>The queue maintains 3 collections of files to deliver: A todo list of
* files that will be attempted, a working set of files that are being
* attempted, and a retry set of files that were attempted and failed.
* Whenever the todo list is empty and needs to be refilled, a scan of the
* If, when a DeliveryTask is about to be removed from the todo list, its
* age exceeds DeliveryQueueHelper.getExpirationTimer(), then it is instead
* marked as expired.
- * <p>
- * A delivery queue also maintains a skip flag. This flag is true if the
+ *
+ * <p>A delivery queue also maintains a skip flag. This flag is true if the
* failure timer is active or if no files are found in a directory scan.
*/
public class DeliveryQueue implements Runnable, DeliveryTaskHelper {
private static EELFLogger logger = EELFManager.getInstance().getLogger(DeliveryQueue.class);
private DeliveryQueueHelper deliveryQueueHelper;
+
private DestInfo destinationInfo;
private Hashtable<String, DeliveryTask> working = new Hashtable<>();
private Hashtable<String, DeliveryTask> retry = new Hashtable<>();
if (dt.isCleaned()) {
return (0);
}
- StatusLog.logExp(dt.getPublishId(), dt.getFeedId(), dt.getSubId(), dt.getURL(), dt.getMethod(), dt.getCType(), dt.getLength(), "diskFull", dt.getAttempts());
+ StatusLog.logExp(dt.getPublishId(), dt.getFeedId(), dt.getSubId(), dt.getURL(),
+ dt.getMethod(), dt.getCType(), dt.getLength(), "diskFull", dt.getAttempts());
dt.clean();
return (dt.getLength());
}
if (failduration == 0) {
if (destinationInfo.isPrivilegedSubscriber()) {
failduration = deliveryQueueHelper.getWaitForFileProcessFailureTimer();
- } else{
+ } else {
failduration = deliveryQueueHelper.getInitFailureTimer();
}
}
}
/**
- * Create a delivery queue for a given destination info
+ * Create a delivery queue for a given destination info.
*/
DeliveryQueue(DeliveryQueueHelper deliveryQueueHelper, DestInfo destinationInfo) {
this.deliveryQueueHelper = deliveryQueueHelper;
}
/**
- * Update the destination info for this delivery queue
+ * Update the destination info for this delivery queue.
*/
public void config(DestInfo destinationInfo) {
this.destinationInfo = destinationInfo;
}
/**
- * Get the dest info
+ * Get the dest info.
*/
public DestInfo getDestinationInfo() {
return (destinationInfo);
}
/**
- * Get the config manager
+ * Get the config manager.
*/
public DeliveryQueueHelper getConfig() {
return (deliveryQueueHelper);
}
/**
- * Exceptional condition occurred during delivery
+ * Exceptional condition occurred during delivery.
*/
public void reportDeliveryExtra(DeliveryTask task, long sent) {
StatusLog.logDelExtra(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getLength(), sent);
}
/**
- * Message too old to deliver
+ * Message too old to deliver.
*/
void reportExpiry(DeliveryTask task) {
- StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), "retriesExhausted", task.getAttempts());
+ StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+ task.getCType(), task.getLength(), "retriesExhausted", task.getAttempts());
markExpired(task);
}
/**
- * Completed a delivery attempt
+ * Completed a delivery attempt.
*/
public void reportStatus(DeliveryTask task, int status, String xpubid, String location) {
if (status < 300) {
- StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, xpubid);
+ StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+ task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, xpubid);
if (destinationInfo.isPrivilegedSubscriber()) {
- task.setResumeTime(System.currentTimeMillis() + deliveryQueueHelper.getWaitForFileProcessFailureTimer());
+ task.setResumeTime(System.currentTimeMillis()
+ + deliveryQueueHelper.getWaitForFileProcessFailureTimer());
markFailWithRetry(task);
} else {
markSuccess(task);
}
} else if (status < 400 && deliveryQueueHelper.isFollowRedirects()) {
- StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
+ StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+ task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
if (deliveryQueueHelper.handleRedirection(destinationInfo, location, task.getFileId())) {
markRedirect(task);
} else {
- StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), "notRetryable", task.getAttempts());
+ StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(),
+ task.getMethod(), task.getCType(), task.getLength(), "notRetryable", task.getAttempts());
markFailNoRetry(task);
}
- } else if (status < 500 && status != 429) { // Status 429 is the standard response for Too Many Requests and indicates that a file needs to be delivered again at a later time.
- StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
- StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), "notRetryable", task.getAttempts());
+ } else if (status < 500 && status != 429) {
+ // Status 429 is the standard response for Too Many Requests and indicates
+ // that a file needs to be delivered again at a later time.
+ StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+ task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
+ StatusLog.logExp(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+ task.getCType(), task.getLength(), "notRetryable", task.getAttempts());
markFailNoRetry(task);
} else {
- StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
+ StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+ task.getCType(), task.getLength(), destinationInfo.getAuthUser(), status, location);
markFailWithRetry(task);
}
}
/**
- * Delivery failed by reason of an exception
+ * Delivery failed by reason of an exception.
*/
public void reportException(DeliveryTask task, Exception exception) {
- StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(), task.getCType(), task.getLength(), destinationInfo.getAuthUser(), -1, exception.toString());
+ StatusLog.logDel(task.getPublishId(), task.getFeedId(), task.getSubId(), task.getURL(), task.getMethod(),
+ task.getCType(), task.getLength(), destinationInfo.getAuthUser(), -1, exception.toString());
deliveryQueueHelper.handleUnreachable(destinationInfo);
markFailWithRetry(task);
}
/**
- * Get the feed ID for a subscription
+ * Get the feed ID for a subscription.
*
* @param subid The subscription ID
* @return The feed ID
}
/**
- * Get the URL to deliver a message to given the file ID
+ * Get the URL to deliver a message to given the file ID.
*/
public String getDestURL(String fileid) {
return (deliveryQueueHelper.getDestURL(destinationInfo, fileid));
}
/**
- * Deliver files until there's a failure or there are no more
+ * Deliver files until there's a failure or there are no more.
* files to deliver
*/
public void run() {
}
/**
- * Is there no work to do for this queue right now?
+ * Is there no work to do for this queue right now?.
*/
synchronized boolean isSkipSet() {
return (peekNext() == null);
}
/**
- * Reset the retry timer
+ * Reset the retry timer.
*/
void resetQueue() {
resumetime = System.currentTimeMillis();
}
/**
- * Get task if in queue and mark as success
+ * Get task if in queue and mark as success.
*/
boolean markTaskSuccess(String pubId) {
DeliveryTask task = working.get(pubId);
}
return false;
}
+
private void scanForNextTask(String[] files) {
for (String fname : files) {
String pubId = getPubId(fname);
Code Review / dmaap / datarouter.git / blobdiff