private String getFlattenedValue(Map<String, Interest> input) {
StringBuilder stringBuilder = new StringBuilder();
Set<Map.Entry<String, Interest>> inputEntrySet = input.entrySet();
Iterator<Map.Entry<String, Interest>> iterator = inputEntrySet.iterator();
int numEntries = input.size();
int currentIndex = 0;
for (Map.Entry<String, Interest> entry : input.entrySet()) {
String key = entry.getKey();
Interest interest = entry.getValue();
if (key == null
|| key.isEmpty()
|| interest == null
|| interest.getValue() == null
|| interest.getValue().isEmpty()) {
continue;
}
String interestStr = interest.getValue();
stringBuilder.append(key);
stringBuilder.append("_");
stringBuilder.append(interestStr);
if (currentIndex++ != numEntries - 1) {
stringBuilder.append(" ");
}
}
return stringBuilder.toString();
}
public void destroy() throws Exception {
Region<K, V> region = getObject();
// unregister interests
try {
if (region != null && !ObjectUtils.isEmpty(interests)) {
for (Interest<K> interest : interests) {
if (interest instanceof RegexInterest) {
region.unregisterInterestRegex((String) interest.getKey());
} else {
region.unregisterInterest(interest.getKey());
}
}
}
// should not really happen since interests are validated at start/registration
} catch (UnsupportedOperationException ex) {
log.warn("Cannot unregister cache interests", ex);
}
if (region != null) {
if (close) {
if (!region.getCache().isClosed()) {
try {
region.close();
} catch (CacheClosedException cce) {
// nothing to see folks, move on.
}
}
} else if (destroy) {
region.destroyRegion();
}
}
region = null;
}
/**
* Remove all references to the channel. 1) the map of a channel (socket) to its interests. 2) the
* map of interests to its channels.
*
* <p>As each interest is removed inform all channels having a similar interest.
*
* @param sourceCtx
*/
public void unregister(final ChannelHandlerContext sourceCtx) {
final SocketAddress key = sourceCtx.channel().remoteAddress();
majorLogger.info("unregister channel {}", key);
final Interest.ChannelInterestSet channelInterestSet = this.channelInterestMap.remove(key);
if (channelInterestSet == null) {
majorLogger.warn(
"nothing to unregister in interest map: {}", this.channelInterestMap.keySet());
return;
}
final String trackingGuid = UUID.randomUUID().toString();
majorLogger.warn("no interested channel set");
for (final Interest interest : channelInterestSet.getInterestList()) {
if (!this.interestedChannelMap.containsKey(interest)) {
continue;
}
final Interest.InterestedChannelSet interestedChannelSet =
this.interestedChannelMap.get(interest);
interestedChannelSet.removeItem(sourceCtx, interest);
majorLogger.info("unregistered interest {}", interest);
// this.interestedChannelMap.put(interest, interestedChannelSet);
// an implicit DISINTEREST message will be sent to all interested channels
final MetaLinkMsg.Edit.Builder editBuilder =
MetaLinkMsg.Edit.newBuilder()
.addMode(MetaLinkMsg.Edit.EditMode.DISINTEREST)
.setEditMode(MetaLinkMsg.Edit.EditMode.DISINTEREST)
.setGuid(trackingGuid)
.setSequence(sequenceNumber.incrementAndGet())
.addAllTopic(interest.getTopic())
.addOrigin(sourceCtx.channel().remoteAddress().toString())
.addOrigin(METALINK_BRIDGE_NAME);
final MetaLinkMsg.Edit disinterestMsg = editBuilder.build();
majorLogger.trace("expressing disinterest to all channels except source");
for (final Map.Entry<SocketAddress, Interest.ChannelInterestSet> entry :
this.channelInterestMap.entrySet()) {
final ChannelHandlerContext ctx = entry.getValue().context;
if (isSameChannel(ctx, sourceCtx)) {
continue;
}
majorLogger.trace("disinterest {} to {}", trackingGuid, ctx.channel().remoteAddress());
ctx.write(disinterestMsg);
ctx.flush();
detailLogger.info("message sent:\n{}", disinterestMsg);
}
}
}
protected void postProcess(Region<K, V> region) {
if (!ObjectUtils.isEmpty(interests)) {
for (Interest<K> interest : interests) {
if (interest instanceof RegexInterest) {
// do the cast since it's safe
region.registerInterestRegex(
(String) interest.getKey(),
interest.getPolicy(),
interest.isDurable(),
interest.isReceiveValues());
} else {
region.registerInterest(
interest.getKey(),
interest.getPolicy(),
interest.isDurable(),
interest.isReceiveValues());
}
}
}
}