Examples with ChaincodeQueryResponse org.hyperledger.fabric.protos.peer.Query.ChaincodeQueryResponse used on opensource projects

Example 1 with ChaincodeQueryResponse

use of org.hyperledger.fabric.protos.peer.Query.ChaincodeQueryResponse in project fabric-sdk-java by hyperledger.

the class Channel method queryInstantiatedChaincodes.

/**
 * Query peer for chaincode that has been instantiated
 *
 * @param peer        The peer to query.
 * @param userContext the user context.
 * @return A list of ChaincodeInfo @see {@link ChaincodeInfo}
 * @throws InvalidArgumentException
 * @throws ProposalException
 */
public List<ChaincodeInfo> queryInstantiatedChaincodes(Peer peer, User userContext) throws InvalidArgumentException, ProposalException {
    checkChannelState();
    checkPeer(peer);
    User.userContextCheck(userContext);
    try {
        TransactionContext context = getTransactionContext(userContext);
        FabricProposal.Proposal q = QueryInstantiatedChaincodesBuilder.newBuilder().context(context).build();
        SignedProposal qProposal = getSignedProposal(context, q);
        Collection<ProposalResponse> proposalResponses = sendProposalToPeers(Collections.singletonList(peer), qProposal, context);
        if (null == proposalResponses) {
            throw new ProposalException(format("Peer %s channel query return with null for responses", peer.getName()));
        }
        if (proposalResponses.size() != 1) {
            throw new ProposalException(format("Peer %s channel query expected one response but got back %d  responses ", peer.getName(), proposalResponses.size()));
        }
        ProposalResponse proposalResponse = proposalResponses.iterator().next();
        FabricProposalResponse.ProposalResponse fabricResponse = proposalResponse.getProposalResponse();
        if (null == fabricResponse) {
            throw new ProposalException(format("Peer %s channel query return with empty fabric response", peer.getName()));
        }
        final Response fabricResponseResponse = fabricResponse.getResponse();
        if (null == fabricResponseResponse) {
            // not likely but check it.
            throw new ProposalException(format("Peer %s channel query return with empty fabricResponseResponse", peer.getName()));
        }
        if (200 != fabricResponseResponse.getStatus()) {
            throw new ProposalException(format("Peer %s channel query expected 200, actual returned was: %d. " + fabricResponseResponse.getMessage(), peer.getName(), fabricResponseResponse.getStatus()));
        }
        ChaincodeQueryResponse chaincodeQueryResponse = ChaincodeQueryResponse.parseFrom(fabricResponseResponse.getPayload());
        return chaincodeQueryResponse.getChaincodesList();
    } catch (ProposalException e) {
        throw e;
    } catch (Exception e) {
        throw new ProposalException(format("Query for peer %s channels failed. " + e.getMessage(), name), e);
    }
}

Example 2 with ChaincodeQueryResponse

use of org.hyperledger.fabric.protos.peer.Query.ChaincodeQueryResponse in project fabric-sdk-java by hyperledger.

the class Channel method queryInstalledChaincodes.

List<ChaincodeInfo> queryInstalledChaincodes(Peer peer) throws InvalidArgumentException, ProposalException {
    checkPeer(peer);
    if (!isSystemChannel()) {
        throw new InvalidArgumentException("queryInstalledChaincodes should only be invoked on system channel.");
    }
    try {
        TransactionContext context = getTransactionContext();
        FabricProposal.Proposal q = QueryInstalledChaincodesBuilder.newBuilder().context(context).build();
        SignedProposal qProposal = getSignedProposal(context, q);
        Collection<ProposalResponse> proposalResponses = sendProposalToPeers(Collections.singletonList(peer), qProposal, context);
        if (null == proposalResponses) {
            throw new ProposalException(format("Peer %s channel query return with null for responses", peer.getName()));
        }
        if (proposalResponses.size() != 1) {
            throw new ProposalException(format("Peer %s channel query expected one response but got back %d  responses ", peer.getName(), proposalResponses.size()));
        }
        ProposalResponse proposalResponse = proposalResponses.iterator().next();
        FabricProposalResponse.ProposalResponse fabricResponse = proposalResponse.getProposalResponse();
        if (null == fabricResponse) {
            throw new ProposalException(format("Peer %s channel query return with empty fabric response", peer.getName()));
        }
        final Response fabricResponseResponse = fabricResponse.getResponse();
        if (null == fabricResponseResponse) {
            // not likely but check it.
            throw new ProposalException(format("Peer %s channel query return with empty fabricResponseResponse", peer.getName()));
        }
        if (200 != fabricResponseResponse.getStatus()) {
            throw new ProposalException(format("Peer %s channel query expected 200, actual returned was: %d. " + fabricResponseResponse.getMessage(), peer.getName(), fabricResponseResponse.getStatus()));
        }
        ChaincodeQueryResponse chaincodeQueryResponse = ChaincodeQueryResponse.parseFrom(fabricResponseResponse.getPayload());
        return chaincodeQueryResponse.getChaincodesList();
    } catch (ProposalException e) {
        throw e;
    } catch (Exception e) {
        throw new ProposalException(format("Query for peer %s channels failed. " + e.getMessage(), name), e);
    }
}