675 lines
25 KiB
Java
675 lines
25 KiB
Java
package eu.siacs.conversations.services;
|
||
|
||
import android.util.Log;
|
||
|
||
import org.jetbrains.annotations.NotNull;
|
||
|
||
import java.math.BigInteger;
|
||
import java.util.ArrayList;
|
||
import java.util.HashSet;
|
||
import java.util.Iterator;
|
||
import java.util.List;
|
||
|
||
import eu.siacs.conversations.Config;
|
||
import eu.siacs.conversations.R;
|
||
import eu.siacs.conversations.entities.Account;
|
||
import eu.siacs.conversations.entities.Conversation;
|
||
import eu.siacs.conversations.entities.Conversational;
|
||
import eu.siacs.conversations.entities.ReceiptRequest;
|
||
import eu.siacs.conversations.generator.AbstractGenerator;
|
||
import eu.siacs.conversations.xml.Element;
|
||
import eu.siacs.conversations.xmpp.Jid;
|
||
import eu.siacs.conversations.xmpp.OnAdvancedStreamFeaturesLoaded;
|
||
import eu.siacs.conversations.xmpp.mam.MamReference;
|
||
import eu.siacs.conversations.xmpp.stanzas.IqPacket;
|
||
import eu.siacs.conversations.xmpp.stanzas.MessagePacket;
|
||
|
||
public class MessageArchiveService implements OnAdvancedStreamFeaturesLoaded {
|
||
|
||
private final XmppConnectionService mXmppConnectionService;
|
||
|
||
private final HashSet<Query> queries = new HashSet<>();
|
||
private final ArrayList<Query> pendingQueries = new ArrayList<>();
|
||
|
||
public enum Version {
|
||
MAM_0("urn:xmpp:mam:0", true),
|
||
MAM_1("urn:xmpp:mam:1", false),
|
||
MAM_2("urn:xmpp:mam:2", false);
|
||
|
||
public final boolean legacy;
|
||
public final String namespace;
|
||
|
||
Version(String namespace, boolean legacy) {
|
||
this.namespace = namespace;
|
||
this.legacy = legacy;
|
||
}
|
||
|
||
public static Version get(Account account) {
|
||
return get(account, null);
|
||
}
|
||
|
||
public static Version get(Account account, Conversation conversation) {
|
||
if (conversation == null || conversation.getMode() == Conversation.MODE_SINGLE) {
|
||
return get(account.getXmppConnection().getFeatures().getAccountFeatures());
|
||
} else {
|
||
return get(conversation.getMucOptions().getFeatures());
|
||
}
|
||
}
|
||
|
||
private static Version get(List<String> features) {
|
||
final Version[] values = values();
|
||
for (int i = values.length - 1; i >= 0; --i) {
|
||
for (String feature : features) {
|
||
if (values[i].namespace.equals(feature)) {
|
||
return values[i];
|
||
}
|
||
}
|
||
}
|
||
return MAM_0;
|
||
}
|
||
|
||
public static boolean has(List<String> features) {
|
||
for (String feature : features) {
|
||
for (Version version : values()) {
|
||
if (version.namespace.equals(feature)) {
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
public static Element findResult(MessagePacket packet) {
|
||
for (Version version : values()) {
|
||
Element result = packet.findChild("result", version.namespace);
|
||
if (result != null) {
|
||
return result;
|
||
}
|
||
}
|
||
return null;
|
||
}
|
||
|
||
}
|
||
|
||
MessageArchiveService(final XmppConnectionService service) {
|
||
this.mXmppConnectionService = service;
|
||
}
|
||
|
||
private void catchup(final Account account) {
|
||
synchronized (this.queries) {
|
||
for (Iterator<Query> iterator = this.queries.iterator(); iterator.hasNext(); ) {
|
||
Query query = iterator.next();
|
||
if (query.getAccount() == account) {
|
||
iterator.remove();
|
||
}
|
||
}
|
||
}
|
||
MamReference mamReference = MamReference.max(
|
||
mXmppConnectionService.databaseBackend.getLastMessageReceived(account),
|
||
mXmppConnectionService.databaseBackend.getLastClearDate(account)
|
||
);
|
||
mamReference = MamReference.max(mamReference, mXmppConnectionService.getAutomaticMessageDeletionDate());
|
||
long endCatchup = account.getXmppConnection().getLastSessionEstablished();
|
||
final Query query;
|
||
if (mamReference.getTimestamp() == 0) {
|
||
return;
|
||
} else if (endCatchup - mamReference.getTimestamp() >= Config.MAM_MAX_CATCHUP) {
|
||
long startCatchup = endCatchup - Config.MAM_MAX_CATCHUP;
|
||
List<Conversation> conversations = mXmppConnectionService.getConversations();
|
||
for (Conversation conversation : conversations) {
|
||
if (conversation.getMode() == Conversation.MODE_SINGLE && conversation.getAccount() == account && startCatchup > conversation.getLastMessageTransmitted().getTimestamp()) {
|
||
this.query(conversation, startCatchup, true);
|
||
}
|
||
}
|
||
query = new Query(account, new MamReference(startCatchup), 0);
|
||
} else {
|
||
query = new Query(account, mamReference, 0);
|
||
}
|
||
synchronized (this.queries) {
|
||
this.queries.add(query);
|
||
}
|
||
this.execute(query);
|
||
}
|
||
|
||
void catchupMUC(final Conversation conversation) {
|
||
if (conversation.getLastMessageTransmitted().getTimestamp() < 0 && conversation.countMessages() == 0) {
|
||
query(conversation,
|
||
new MamReference(0),
|
||
0,
|
||
true);
|
||
} else {
|
||
query(conversation,
|
||
conversation.getLastMessageTransmitted(),
|
||
0,
|
||
true);
|
||
}
|
||
}
|
||
|
||
public Query query(final Conversation conversation) {
|
||
if (conversation.getLastMessageTransmitted().getTimestamp() < 0 && conversation.countMessages() == 0) {
|
||
return query(conversation,
|
||
new MamReference(0),
|
||
System.currentTimeMillis(),
|
||
false);
|
||
} else {
|
||
return query(conversation,
|
||
conversation.getLastMessageTransmitted(),
|
||
conversation.getAccount().getXmppConnection().getLastSessionEstablished(),
|
||
false);
|
||
}
|
||
}
|
||
|
||
public boolean isCatchingUp(Conversation conversation) {
|
||
final Account account = conversation.getAccount();
|
||
if (account.getXmppConnection().isWaitingForSmCatchup()) {
|
||
return true;
|
||
} else {
|
||
synchronized (this.queries) {
|
||
for (Query query : this.queries) {
|
||
if (query.getAccount() == account && query.isCatchup() && ((conversation.getMode() == Conversation.MODE_SINGLE && query.getWith() == null) || query.getConversation() == conversation)) {
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
}
|
||
|
||
public Query query(final Conversation conversation, long end, boolean allowCatchup) {
|
||
return this.query(conversation, conversation.getLastMessageTransmitted(), end, allowCatchup);
|
||
}
|
||
|
||
public Query query(Conversation conversation, MamReference start, long end, boolean allowCatchup) {
|
||
synchronized (this.queries) {
|
||
final Query query;
|
||
final MamReference startActual = MamReference.max(start, mXmppConnectionService.getAutomaticMessageDeletionDate());
|
||
if (start.getTimestamp() == 0) {
|
||
query = new Query(conversation, startActual, end, false);
|
||
query.reference = conversation.getFirstMamReference();
|
||
} else {
|
||
if (allowCatchup) {
|
||
MamReference maxCatchup = MamReference.max(startActual, System.currentTimeMillis() - Config.MAM_MAX_CATCHUP);
|
||
if (maxCatchup.greaterThan(startActual)) {
|
||
Query reverseCatchup = new Query(conversation, startActual, maxCatchup.getTimestamp(), false);
|
||
this.queries.add(reverseCatchup);
|
||
this.execute(reverseCatchup);
|
||
}
|
||
query = new Query(conversation, maxCatchup, end, true);
|
||
} else {
|
||
query = new Query(conversation, startActual, end, false);
|
||
}
|
||
}
|
||
if (end != 0 && start.greaterThan(end)) {
|
||
return null;
|
||
}
|
||
this.queries.add(query);
|
||
this.execute(query);
|
||
return query;
|
||
}
|
||
}
|
||
|
||
void executePendingQueries(final Account account) {
|
||
final List<Query> pending = new ArrayList<>();
|
||
synchronized (this.pendingQueries) {
|
||
for (Iterator<Query> iterator = this.pendingQueries.iterator(); iterator.hasNext(); ) {
|
||
Query query = iterator.next();
|
||
if (query.getAccount() == account) {
|
||
pending.add(query);
|
||
iterator.remove();
|
||
}
|
||
}
|
||
}
|
||
for (Query query : pending) {
|
||
this.execute(query);
|
||
}
|
||
}
|
||
|
||
private void execute(final Query query) {
|
||
final Account account = query.getAccount();
|
||
if (account.getStatus() == Account.State.ONLINE) {
|
||
final Conversation conversation = query.getConversation();
|
||
if (conversation != null && conversation.getStatus() == Conversation.STATUS_ARCHIVED) {
|
||
throw new IllegalStateException("Attempted to run MAM query for archived conversation");
|
||
}
|
||
Log.d(Config.LOGTAG, account.getJid().asBareJid().toString() + ": running mam query " + query.toString());
|
||
final IqPacket packet = this.mXmppConnectionService.getIqGenerator().queryMessageArchiveManagement(query);
|
||
this.mXmppConnectionService.sendIqPacket(account, packet, (a, p) -> {
|
||
final Element fin = p.findChild("fin", query.version.namespace);
|
||
if (p.getType() == IqPacket.TYPE.TIMEOUT) {
|
||
synchronized (this.queries) {
|
||
this.queries.remove(query);
|
||
if (query.hasCallback()) {
|
||
query.callback(false);
|
||
}
|
||
}
|
||
} else if (p.getType() == IqPacket.TYPE.RESULT && fin != null) {
|
||
final boolean running;
|
||
synchronized (this.queries) {
|
||
running = this.queries.contains(query);
|
||
}
|
||
if (running) {
|
||
processFin(query, fin);
|
||
} else {
|
||
Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": ignoring MAM iq result because query had been killed");
|
||
}
|
||
} else if (p.getType() == IqPacket.TYPE.RESULT && query.isLegacy()) {
|
||
//do nothing
|
||
} else {
|
||
Log.d(Config.LOGTAG, a.getJid().asBareJid().toString() + ": error executing mam: " + p.toString());
|
||
try {
|
||
finalizeQuery(query, true);
|
||
} catch (final IllegalStateException e) {
|
||
//ignored
|
||
}
|
||
}
|
||
});
|
||
} else {
|
||
synchronized (this.pendingQueries) {
|
||
this.pendingQueries.add(query);
|
||
}
|
||
}
|
||
}
|
||
|
||
private void finalizeQuery(final Query query, boolean done) {
|
||
synchronized (this.queries) {
|
||
if (!this.queries.remove(query)) {
|
||
throw new IllegalStateException("Unable to remove query from queries");
|
||
}
|
||
}
|
||
final Conversation conversation = query.getConversation();
|
||
if (conversation != null) {
|
||
conversation.sort();
|
||
conversation.setHasMessagesLeftOnServer(!done);
|
||
} else {
|
||
for (Conversation tmp : this.mXmppConnectionService.getConversations()) {
|
||
if (tmp.getAccount() == query.getAccount()) {
|
||
tmp.sort();
|
||
}
|
||
}
|
||
}
|
||
if (query.hasCallback()) {
|
||
query.callback(done);
|
||
} else {
|
||
this.mXmppConnectionService.updateConversationUi();
|
||
}
|
||
}
|
||
|
||
boolean inCatchup(Account account) {
|
||
synchronized (this.queries) {
|
||
for (Query query : queries) {
|
||
if (query.account == account && query.isCatchup() && query.getWith() == null) {
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
public boolean isCatchupInProgress(Conversation conversation) {
|
||
synchronized (this.queries) {
|
||
for (Query query : queries) {
|
||
if (query.account == conversation.getAccount() && query.isCatchup()) {
|
||
final Jid with = query.getWith() == null ? null : query.getWith().asBareJid();
|
||
if ((conversation.getMode() == Conversational.MODE_SINGLE && with == null) || (conversation.getJid().asBareJid().equals(with))) {
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
boolean queryInProgress(Conversation conversation, XmppConnectionService.OnMoreMessagesLoaded callback) {
|
||
synchronized (this.queries) {
|
||
for (Query query : queries) {
|
||
if (query.conversation == conversation) {
|
||
if (!query.hasCallback() && callback != null) {
|
||
query.setCallback(callback);
|
||
}
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
}
|
||
|
||
public boolean queryInProgress(Conversation conversation) {
|
||
return queryInProgress(conversation, null);
|
||
}
|
||
|
||
public void processFinLegacy(Element fin, Jid from) {
|
||
Query query = findQuery(fin.getAttribute("queryid"));
|
||
if (query != null && query.validFrom(from)) {
|
||
processFin(query, fin);
|
||
}
|
||
}
|
||
|
||
private void processFin(Query query, Element fin) {
|
||
boolean complete = fin.getAttributeAsBoolean("complete");
|
||
Element set = fin.findChild("set", "http://jabber.org/protocol/rsm");
|
||
Element last = set == null ? null : set.findChild("last");
|
||
String count = set == null ? null : set.findChildContent("count");
|
||
Element first = set == null ? null : set.findChild("first");
|
||
Element relevant = query.getPagingOrder() == PagingOrder.NORMAL ? last : first;
|
||
boolean abort = (!query.isCatchup() && query.getTotalCount() >= Config.PAGE_SIZE) || query.getTotalCount() >= Config.MAM_MAX_MESSAGES;
|
||
if (query.getConversation() != null) {
|
||
query.getConversation().setFirstMamReference(first == null ? null : first.getContent());
|
||
}
|
||
if (complete || relevant == null || abort) {
|
||
//TODO: FIX done logic to look at complete. using count is probably unreliable because it can be ommited and doesn’t work with paging.
|
||
boolean done;
|
||
if (query.isCatchup()) {
|
||
done = false;
|
||
} else {
|
||
if (count != null) {
|
||
try {
|
||
done = Integer.parseInt(count) <= query.getTotalCount();
|
||
} catch (NumberFormatException e) {
|
||
done = false;
|
||
}
|
||
} else {
|
||
done = query.getTotalCount() == 0;
|
||
}
|
||
}
|
||
done = done || (query.getActualMessageCount() == 0 && !query.isCatchup());
|
||
this.finalizeQuery(query, done);
|
||
|
||
Log.d(Config.LOGTAG, query.getAccount().getJid().asBareJid() + ": finished mam after " + query.getTotalCount() + "(" + query.getActualMessageCount() + ") messages. messages left=" + !done + " count=" + count);
|
||
if (query.isCatchup() && query.getActualMessageCount() > 0) {
|
||
mXmppConnectionService.getNotificationService().finishBacklog(true, query.getAccount());
|
||
}
|
||
processPostponed(query);
|
||
} else {
|
||
final Query nextQuery;
|
||
if (query.getPagingOrder() == PagingOrder.NORMAL) {
|
||
nextQuery = query.next(last == null ? null : last.getContent());
|
||
} else {
|
||
nextQuery = query.prev(first == null ? null : first.getContent());
|
||
}
|
||
this.execute(nextQuery);
|
||
this.finalizeQuery(query, false);
|
||
synchronized (this.queries) {
|
||
this.queries.add(nextQuery);
|
||
}
|
||
}
|
||
}
|
||
|
||
void kill(final Conversation conversation) {
|
||
final ArrayList<Query> toBeKilled = new ArrayList<>();
|
||
synchronized (this.pendingQueries) {
|
||
for (final Iterator<Query> iterator = this.pendingQueries.iterator(); iterator.hasNext(); ) {
|
||
final Query query = iterator.next();
|
||
if (query.getConversation() == conversation) {
|
||
iterator.remove();
|
||
Log.d(Config.LOGTAG, conversation.getAccount().getJid().asBareJid() + ": killed pending MAM query for archived conversation");
|
||
}
|
||
}
|
||
}
|
||
synchronized (this.queries) {
|
||
for (final Query q : queries) {
|
||
if (q.conversation == conversation) {
|
||
toBeKilled.add(q);
|
||
}
|
||
}
|
||
}
|
||
for (final Query q : toBeKilled) {
|
||
kill(q);
|
||
}
|
||
}
|
||
|
||
private void kill(Query query) {
|
||
Log.d(Config.LOGTAG, query.getAccount().getJid().asBareJid() + ": killing mam query prematurely");
|
||
query.callback = null;
|
||
this.finalizeQuery(query, false);
|
||
if (query.isCatchup() && query.getActualMessageCount() > 0) {
|
||
mXmppConnectionService.getNotificationService().finishBacklog(true, query.getAccount());
|
||
}
|
||
this.processPostponed(query);
|
||
}
|
||
|
||
private void processPostponed(Query query) {
|
||
query.account.getAxolotlService().processPostponed();
|
||
query.pendingReceiptRequests.removeAll(query.receiptRequests);
|
||
Log.d(Config.LOGTAG, query.getAccount().getJid().asBareJid() + ": found " + query.pendingReceiptRequests.size() + " pending receipt requests");
|
||
Iterator<ReceiptRequest> iterator = query.pendingReceiptRequests.iterator();
|
||
while (iterator.hasNext()) {
|
||
ReceiptRequest rr = iterator.next();
|
||
mXmppConnectionService.sendMessagePacket(query.account, mXmppConnectionService.getMessageGenerator().received(query.account, rr.getJid(), rr.getId()));
|
||
iterator.remove();
|
||
}
|
||
}
|
||
|
||
public Query findQuery(String id) {
|
||
if (id == null) {
|
||
return null;
|
||
}
|
||
synchronized (this.queries) {
|
||
for (Query query : this.queries) {
|
||
if (query.getQueryId().equals(id)) {
|
||
return query;
|
||
}
|
||
}
|
||
return null;
|
||
}
|
||
}
|
||
|
||
@Override
|
||
public void onAdvancedStreamFeaturesAvailable(Account account) {
|
||
if (account.getXmppConnection() != null && account.getXmppConnection().getFeatures().mam()) {
|
||
this.catchup(account);
|
||
}
|
||
}
|
||
|
||
public enum PagingOrder {
|
||
NORMAL,
|
||
REVERSE
|
||
}
|
||
|
||
public class Query {
|
||
private HashSet<ReceiptRequest> pendingReceiptRequests = new HashSet<>();
|
||
private HashSet<ReceiptRequest> receiptRequests = new HashSet<>();
|
||
private int totalCount = 0;
|
||
private int actualCount = 0;
|
||
private int actualInThisQuery = 0;
|
||
private long start;
|
||
private final long end;
|
||
private final String queryId;
|
||
private String reference = null;
|
||
private final Account account;
|
||
private Conversation conversation;
|
||
private PagingOrder pagingOrder = PagingOrder.NORMAL;
|
||
private XmppConnectionService.OnMoreMessagesLoaded callback = null;
|
||
private boolean catchup = true;
|
||
public final Version version;
|
||
|
||
|
||
Query(Conversation conversation, MamReference start, long end, boolean catchup) {
|
||
this(conversation.getAccount(), Version.get(conversation.getAccount(), conversation), catchup ? start : start.timeOnly(), end);
|
||
this.conversation = conversation;
|
||
this.pagingOrder = catchup ? PagingOrder.NORMAL : PagingOrder.REVERSE;
|
||
this.catchup = catchup;
|
||
}
|
||
|
||
Query(Account account, MamReference start, long end) {
|
||
this(account, Version.get(account), start, end);
|
||
}
|
||
|
||
Query(Account account, Version version, MamReference start, long end) {
|
||
this.account = account;
|
||
if (start.getReference() != null) {
|
||
this.reference = start.getReference();
|
||
} else {
|
||
this.start = start.getTimestamp();
|
||
}
|
||
this.end = end;
|
||
this.queryId = new BigInteger(50, mXmppConnectionService.getRNG()).toString(32);
|
||
this.version = version;
|
||
}
|
||
|
||
private Query page(String reference) {
|
||
Query query = new Query(this.account, this.version, new MamReference(this.start, reference), this.end);
|
||
query.conversation = conversation;
|
||
query.totalCount = totalCount;
|
||
query.actualCount = actualCount;
|
||
query.pendingReceiptRequests = pendingReceiptRequests;
|
||
query.receiptRequests = receiptRequests;
|
||
query.callback = callback;
|
||
query.catchup = catchup;
|
||
return query;
|
||
}
|
||
|
||
public void removePendingReceiptRequest(ReceiptRequest receiptRequest) {
|
||
if (!this.pendingReceiptRequests.remove(receiptRequest)) {
|
||
this.receiptRequests.add(receiptRequest);
|
||
}
|
||
}
|
||
|
||
public void addPendingReceiptRequest(ReceiptRequest receiptRequest) {
|
||
this.pendingReceiptRequests.add(receiptRequest);
|
||
}
|
||
|
||
public boolean isLegacy() {
|
||
return version.legacy;
|
||
}
|
||
|
||
public boolean safeToExtractTrueCounterpart() {
|
||
return muc() && !isLegacy();
|
||
}
|
||
|
||
public Query next(String reference) {
|
||
Query query = page(reference);
|
||
query.pagingOrder = PagingOrder.NORMAL;
|
||
return query;
|
||
}
|
||
|
||
Query prev(String reference) {
|
||
Query query = page(reference);
|
||
query.pagingOrder = PagingOrder.REVERSE;
|
||
return query;
|
||
}
|
||
|
||
public String getReference() {
|
||
return reference;
|
||
}
|
||
|
||
public PagingOrder getPagingOrder() {
|
||
return this.pagingOrder;
|
||
}
|
||
|
||
public String getQueryId() {
|
||
return queryId;
|
||
}
|
||
|
||
public Jid getWith() {
|
||
return conversation == null ? null : conversation.getJid().asBareJid();
|
||
}
|
||
|
||
public boolean muc() {
|
||
return conversation != null && conversation.getMode() == Conversation.MODE_MULTI;
|
||
}
|
||
|
||
public long getStart() {
|
||
return start;
|
||
}
|
||
|
||
public boolean isCatchup() {
|
||
return catchup;
|
||
}
|
||
|
||
public void setCallback(XmppConnectionService.OnMoreMessagesLoaded callback) {
|
||
this.callback = callback;
|
||
}
|
||
|
||
public void callback(boolean done) {
|
||
if (this.callback != null) {
|
||
this.callback.onMoreMessagesLoaded(actualCount, conversation);
|
||
if (done) {
|
||
this.callback.informUser(R.string.no_more_history_on_server);
|
||
}
|
||
}
|
||
}
|
||
|
||
public long getEnd() {
|
||
return end;
|
||
}
|
||
|
||
public Conversation getConversation() {
|
||
return conversation;
|
||
}
|
||
|
||
public Account getAccount() {
|
||
return this.account;
|
||
}
|
||
|
||
public void incrementMessageCount() {
|
||
this.totalCount++;
|
||
}
|
||
|
||
public void incrementActualMessageCount() {
|
||
this.actualInThisQuery++;
|
||
this.actualCount++;
|
||
}
|
||
|
||
int getTotalCount() {
|
||
return this.totalCount;
|
||
}
|
||
|
||
int getActualMessageCount() {
|
||
return this.actualCount;
|
||
}
|
||
|
||
public int getActualInThisQuery() {
|
||
return this.actualInThisQuery;
|
||
}
|
||
|
||
public boolean validFrom(Jid from) {
|
||
if (muc()) {
|
||
return getWith().equals(from);
|
||
} else {
|
||
return (from == null) || account.getJid().asBareJid().equals(from.asBareJid());
|
||
}
|
||
}
|
||
|
||
@NotNull
|
||
@Override
|
||
public String toString() {
|
||
StringBuilder builder = new StringBuilder();
|
||
if (this.muc()) {
|
||
builder.append("to=");
|
||
builder.append(this.getWith().toString());
|
||
} else {
|
||
builder.append("with=");
|
||
if (this.getWith() == null) {
|
||
builder.append("*");
|
||
} else {
|
||
builder.append(getWith().toString());
|
||
}
|
||
}
|
||
if (this.start != 0) {
|
||
builder.append(", start=");
|
||
builder.append(AbstractGenerator.getTimestamp(this.start));
|
||
}
|
||
if (this.end != 0) {
|
||
builder.append(", end=");
|
||
builder.append(AbstractGenerator.getTimestamp(this.end));
|
||
}
|
||
builder.append(", order=").append(pagingOrder.toString());
|
||
if (this.reference != null) {
|
||
if (this.pagingOrder == PagingOrder.NORMAL) {
|
||
builder.append(", after=");
|
||
} else {
|
||
builder.append(", before=");
|
||
}
|
||
builder.append(this.reference);
|
||
}
|
||
builder.append(", catchup=").append(catchup);
|
||
builder.append(", ns=").append(version.namespace);
|
||
return builder.toString();
|
||
}
|
||
|
||
boolean hasCallback() {
|
||
return this.callback != null;
|
||
}
|
||
}
|
||
}
|