Examples with ExistenceFilterWatchChange com.google.firebase.firestore.remote.WatchChange.ExistenceFilterWatchChange used on opensource projects

Example 1 with ExistenceFilterWatchChange

use of com.google.firebase.firestore.remote.WatchChange.ExistenceFilterWatchChange in project firebase-android-sdk by firebase.

the class SpecTestCase method doWatchFilter.

private void doWatchFilter(JSONArray watchFilter) throws Exception {
    List<Integer> targets = parseIntList(watchFilter.getJSONArray(0));
    Assert.hardAssert(targets.size() == 1, "ExistenceFilters currently support exactly one target only.");
    int keyCount = watchFilter.length() == 0 ? 0 : watchFilter.length() - 1;
    // TODO: extend this with different existence filters over time.
    ExistenceFilter filter = new ExistenceFilter(keyCount);
    ExistenceFilterWatchChange change = new ExistenceFilterWatchChange(targets.get(0), filter);
    writeWatchChange(change, SnapshotVersion.NONE);
}

Example 2 with ExistenceFilterWatchChange

use of com.google.firebase.firestore.remote.WatchChange.ExistenceFilterWatchChange in project firebase-android-sdk by firebase.

the class RemoteStore method handleWatchChange.

private void handleWatchChange(SnapshotVersion snapshotVersion, WatchChange watchChange) {
    // Mark the connection as ONLINE because we got a message from the server.
    onlineStateTracker.updateState(OnlineState.ONLINE);
    hardAssert((watchStream != null) && (watchChangeAggregator != null), "WatchStream and WatchStreamAggregator should both be non-null");
    WatchTargetChange watchTargetChange = watchChange instanceof WatchTargetChange ? (WatchTargetChange) watchChange : null;
    if (watchTargetChange != null && watchTargetChange.getChangeType().equals(WatchTargetChangeType.Removed) && watchTargetChange.getCause() != null) {
        // There was an error on a target, don't wait for a consistent snapshot to raise events
        processTargetError(watchTargetChange);
    } else {
        if (watchChange instanceof DocumentChange) {
            watchChangeAggregator.handleDocumentChange((DocumentChange) watchChange);
        } else if (watchChange instanceof ExistenceFilterWatchChange) {
            watchChangeAggregator.handleExistenceFilter((ExistenceFilterWatchChange) watchChange);
        } else {
            hardAssert(watchChange instanceof WatchTargetChange, "Expected watchChange to be an instance of WatchTargetChange");
            watchChangeAggregator.handleTargetChange((WatchTargetChange) watchChange);
        }
        if (!snapshotVersion.equals(SnapshotVersion.NONE)) {
            SnapshotVersion lastRemoteSnapshotVersion = this.localStore.getLastRemoteSnapshotVersion();
            if (snapshotVersion.compareTo(lastRemoteSnapshotVersion) >= 0) {
                // We have received a target change with a global snapshot if the snapshot
                // version is not equal to SnapshotVersion.MIN.
                raiseWatchSnapshot(snapshotVersion);
            }
        }
    }
}

Example 3 with ExistenceFilterWatchChange

use of com.google.firebase.firestore.remote.WatchChange.ExistenceFilterWatchChange in project firebase-android-sdk by firebase.

the class RemoteSerializer method decodeWatchChange.

// Watch changes
public WatchChange decodeWatchChange(ListenResponse protoChange) {
    WatchChange watchChange;
    switch(protoChange.getResponseTypeCase()) {
        case TARGET_CHANGE:
            com.google.firestore.v1.TargetChange targetChange = protoChange.getTargetChange();
            WatchTargetChangeType changeType;
            Status cause = null;
            switch(targetChange.getTargetChangeType()) {
                case NO_CHANGE:
                    changeType = WatchTargetChangeType.NoChange;
                    break;
                case ADD:
                    changeType = WatchTargetChangeType.Added;
                    break;
                case REMOVE:
                    changeType = WatchTargetChangeType.Removed;
                    cause = fromStatus(targetChange.getCause());
                    break;
                case CURRENT:
                    changeType = WatchTargetChangeType.Current;
                    break;
                case RESET:
                    changeType = WatchTargetChangeType.Reset;
                    break;
                case UNRECOGNIZED:
                default:
                    throw new IllegalArgumentException("Unknown target change type");
            }
            watchChange = new WatchTargetChange(changeType, targetChange.getTargetIdsList(), targetChange.getResumeToken(), cause);
            break;
        case DOCUMENT_CHANGE:
            DocumentChange docChange = protoChange.getDocumentChange();
            List<Integer> added = docChange.getTargetIdsList();
            List<Integer> removed = docChange.getRemovedTargetIdsList();
            DocumentKey key = decodeKey(docChange.getDocument().getName());
            SnapshotVersion version = decodeVersion(docChange.getDocument().getUpdateTime());
            hardAssert(!version.equals(SnapshotVersion.NONE), "Got a document change without an update time");
            ObjectValue data = ObjectValue.fromMap(docChange.getDocument().getFieldsMap());
            MutableDocument document = MutableDocument.newFoundDocument(key, version, data);
            watchChange = new WatchChange.DocumentChange(added, removed, document.getKey(), document);
            break;
        case DOCUMENT_DELETE:
            DocumentDelete docDelete = protoChange.getDocumentDelete();
            removed = docDelete.getRemovedTargetIdsList();
            key = decodeKey(docDelete.getDocument());
            // Note that version might be unset in which case we use SnapshotVersion.NONE
            version = decodeVersion(docDelete.getReadTime());
            MutableDocument doc = MutableDocument.newNoDocument(key, version);
            watchChange = new WatchChange.DocumentChange(Collections.emptyList(), removed, doc.getKey(), doc);
            break;
        case DOCUMENT_REMOVE:
            DocumentRemove docRemove = protoChange.getDocumentRemove();
            removed = docRemove.getRemovedTargetIdsList();
            key = decodeKey(docRemove.getDocument());
            watchChange = new WatchChange.DocumentChange(Collections.emptyList(), removed, key, null);
            break;
        case FILTER:
            com.google.firestore.v1.ExistenceFilter protoFilter = protoChange.getFilter();
            // TODO: implement existence filter parsing (see b/33076578)
            ExistenceFilter filter = new ExistenceFilter(protoFilter.getCount());
            int targetId = protoFilter.getTargetId();
            watchChange = new ExistenceFilterWatchChange(targetId, filter);
            break;
        case RESPONSETYPE_NOT_SET:
        default:
            throw new IllegalArgumentException("Unknown change type set");
    }
    return watchChange;
}