/** * Tries to claim the given token {@code entry}. If the claim fails an {@link UnableToClaimTokenException} should be * thrown. Otherwise the given {@code resultSet} should be updated to reflect the claim. * * @param resultSet the updatable query result of an executed {@link PreparedStatement} * @param entry the entry extracted from the given result set * @return the claimed tracking token * * @throws UnableToClaimTokenException if the token cannot be claimed because another node currently owns the token * @throws SQLException when an exception occurs while claiming the token entry */ protected TrackingToken claimToken(ResultSet resultSet, AbstractTokenEntry<?> entry) throws SQLException { if (!entry.claim(nodeId, claimTimeout)) { throw new UnableToClaimTokenException( format("Unable to claim token '%s[%s]'. It is owned by '%s'", entry.getProcessorName(), entry.getSegment(), entry.getOwner())); } resultSet.updateString(schema.ownerColum(), entry.getOwner()); resultSet.updateString(schema.timestampColumn(), entry.timestampAsString()); resultSet.updateRow(); return entry.getToken(serializer); }
/** * Inserts a new token entry via the given updatable {@code resultSet}. * * @param resultSet the updatable result set to add the entry to * @param token the token of the entry to insert * @param processorName the name of the processor to insert a token for * @param segment the segment of the processor to insert a token for * @return the tracking token of the inserted entry * * @throws SQLException when an exception occurs while inserting a token entry */ protected TrackingToken insertTokenEntry(ResultSet resultSet, TrackingToken token, String processorName, int segment) throws SQLException { AbstractTokenEntry<?> entry = new GenericTokenEntry<>(token, serializer, contentType, processorName, segment); entry.claim(nodeId, claimTimeout); resultSet.moveToInsertRow(); resultSet.updateObject(schema.tokenColumn(), token == null ? null : entry.getSerializedToken().getData()); resultSet.updateString(schema.tokenTypeColumn(), token == null ? null : entry.getSerializedToken().getType().getName()); resultSet.updateString(schema.timestampColumn(), entry.timestampAsString()); resultSet.updateString(schema.ownerColum(), entry.getOwner()); resultSet.updateString(schema.processorNameColumn(), processorName); resultSet.updateInt(schema.segmentColumn(), segment); resultSet.insertRow(); return token; }
/** * Tries to claim the given token {@code entry}. If the claim fails an {@link UnableToClaimTokenException} should be * thrown. Otherwise the given {@code resultSet} should be updated to reflect the claim. * * @param resultSet the updatable query result of an executed {@link PreparedStatement} * @param entry the entry extracted from the given result set * @return the claimed tracking token * @throws UnableToClaimTokenException if the token cannot be claimed because another node currently owns the token * @throws SQLException when an exception occurs while claiming the token entry */ protected TrackingToken claimToken(ResultSet resultSet, AbstractTokenEntry<?> entry) throws SQLException { if (!entry.claim(nodeId, claimTimeout)) { throw new UnableToClaimTokenException( format("Unable to claim token '%s[%s]'. It is owned by '%s'", entry.getProcessorName(), entry.getSegment(), entry.getOwner())); } resultSet.updateString(schema.ownerColum(), entry.getOwner()); resultSet.updateString(schema.timestampColumn(), entry.timestampAsString()); resultSet.updateRow(); return entry.getToken(serializer); }
private Document tokenEntryToDocument(AbstractTokenEntry<?> tokenEntry) { return new Document("processorName", tokenEntry.getProcessorName()) .append("segment", tokenEntry.getSegment()) .append("owner", tokenEntry.getOwner()) .append("timestamp", tokenEntry.timestamp().toEpochMilli()) .append("token", tokenEntry.getSerializedToken() == null ? null : tokenEntry.getSerializedToken().getData()) .append("tokenType", tokenEntry.getSerializedToken() == null ? null : tokenEntry.getSerializedToken() .getContentType().getName()); }
/** * Tries to claim the given token {@code entry}. If the claim fails an {@link UnableToClaimTokenException} should be * thrown. Otherwise the given {@code resultSet} should be updated to reflect the claim. * * @param resultSet the updatable query result of an executed {@link PreparedStatement} * @param entry the entry extracted from the given result set * @return the claimed tracking token * * @throws UnableToClaimTokenException if the token cannot be claimed because another node currently owns the token * @throws SQLException when an exception occurs while claiming the token entry */ protected TrackingToken claimToken(ResultSet resultSet, AbstractTokenEntry<?> entry) throws SQLException { if (!entry.claim(nodeId, claimTimeout)) { throw new UnableToClaimTokenException( format("Unable to claim token '%s[%s]'. It is owned by '%s'", entry.getProcessorName(), entry.getSegment(), entry.getOwner())); } resultSet.updateString(schema.ownerColum(), entry.getOwner()); resultSet.updateString(schema.timestampColumn(), entry.timestampAsString()); resultSet.updateRow(); return entry.getToken(serializer); }
private Document tokenEntryToDocument(AbstractTokenEntry<?> tokenEntry) { return new Document("processorName", tokenEntry.getProcessorName()) .append("segment", tokenEntry.getSegment()) .append("owner", tokenEntry.getOwner()) .append("timestamp", tokenEntry.timestamp().toEpochMilli()) .append("token", tokenEntry.getSerializedToken() == null ? null : tokenEntry.getSerializedToken().getData()) .append("tokenType", tokenEntry.getSerializedToken() == null ? null : tokenEntry.getSerializedToken() .getType().getName()); }
/** * Inserts a new token entry via the given updatable {@code resultSet}. * * @param resultSet the updatable result set to add the entry to * @param token the token of the entry to insert * @param processorName the name of the processor to insert a token for * @param segment the segment of the processor to insert a token for * @return the tracking token of the inserted entry * @throws SQLException when an exception occurs while inserting a token entry */ protected TrackingToken insertTokenEntry(ResultSet resultSet, TrackingToken token, String processorName, int segment) throws SQLException { AbstractTokenEntry<?> entry = new GenericTokenEntry<>(token, serializer, contentType, processorName, segment); entry.claim(nodeId, claimTimeout); resultSet.moveToInsertRow(); resultSet.updateObject(schema.tokenColumn(), token == null ? null : entry.getSerializedToken().getData()); resultSet.updateString(schema.tokenTypeColumn(), token == null ? null : entry.getSerializedToken().getType().getName()); resultSet.updateString(schema.timestampColumn(), entry.timestampAsString()); resultSet.updateString(schema.ownerColum(), entry.getOwner()); resultSet.updateString(schema.processorNameColumn(), processorName); resultSet.updateInt(schema.segmentColumn(), segment); resultSet.insertRow(); return token; }
/** * Inserts a new token entry via the given updatable {@code resultSet}. * * @param resultSet the updatable result set to add the entry to * @param token the token of the entry to insert * @param processorName the name of the processor to insert a token for * @param segment the segment of the processor to insert a token for * @return the tracking token of the inserted entry * * @throws SQLException when an exception occurs while inserting a token entry */ protected TrackingToken insertTokenEntry(ResultSet resultSet, TrackingToken token, String processorName, int segment) throws SQLException { AbstractTokenEntry<?> entry = new GenericTokenEntry<>(token, serializer, contentType, processorName, segment); entry.claim(nodeId, claimTimeout); resultSet.moveToInsertRow(); resultSet.updateObject(schema.tokenColumn(), token == null ? null : entry.getSerializedToken().getData()); resultSet.updateString(schema.tokenTypeColumn(), token == null ? null : entry.getSerializedToken().getType().getName()); resultSet.updateString(schema.timestampColumn(), entry.timestampAsString()); resultSet.updateString(schema.ownerColum(), entry.getOwner()); resultSet.updateString(schema.processorNameColumn(), processorName); resultSet.updateInt(schema.segmentColumn(), segment); resultSet.insertRow(); return token; }