Examples with ConsensusUpdateTopic com.hederahashgraph.api.proto.java.HederaFunctionality.ConsensusUpdateTopic used on opensource projects

Example 1 with ConsensusUpdateTopic

use of com.hederahashgraph.api.proto.java.HederaFunctionality.ConsensusUpdateTopic in project hedera-services by hashgraph.

the class HapiTopicUpdate method feeFor.

@Override
protected long feeFor(HapiApiSpec spec, Transaction txn, int numPayerKeys) throws Throwable {
    if (!spec.registry().hasTopicMeta(topic)) {
        return spec.fees().maxFeeTinyBars();
    } else {
        /* Lookup topic metadata saved during creation. */
        long oldExpiry = spec.registry().getTopicExpiry(topic);
        ConsensusCreateTopicTransactionBody oldMeta = spec.registry().getTopicMeta(topic);
        /* Computed the increase in RBS due to this update. */
        long tentativeRbsIncrease = 0;
        try {
            TransactionBody updateTxn = CommonUtils.extractTransactionBody(txn);
            tentativeRbsIncrease = ConsensusServiceFeeBuilder.getUpdateTopicRbsIncrease(updateTxn.getTransactionID().getTransactionValidStart(), oldMeta.getAdminKey(), oldMeta.getSubmitKey(), oldMeta.getMemo(), oldMeta.hasAutoRenewAccount(), Timestamp.newBuilder().setSeconds(oldExpiry).build(), updateTxn.getConsensusUpdateTopic());
        } catch (Exception impossible) {
            throw new IllegalStateException(impossible);
        }
        /* Create a custom activity metrics calculator based on the rbsIncrease. */
        final long rbsIncrease = tentativeRbsIncrease;
        FeeCalculator.ActivityMetrics metricsCalc = (txBody, sigUsage) -> ConsensusServiceFeeBuilder.getConsensusUpdateTopicFee(txBody, rbsIncrease, sigUsage);
        /* Return the net fee. */
        return spec.fees().forActivityBasedOp(ConsensusUpdateTopic, metricsCalc, txn, numPayerKeys);
    }
}