Метод sendTransactionProposalToEndorsers, используемый в sdk java для структуры hyperledger - PullRequest
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Метод sendTransactionProposalToEndorsers, используемый в sdk java для структуры hyperledger

0 голосов
/ 12 марта 2020

Я на самом деле использую java SDK для Hyperledger Fabri c Blockchain .. Я хочу реализовать случайное одобрение однорангового узла ... Я установил одноранговый узел обнаружения и инициализировал канал, затем попытался вызвать 

sendTransactionProposalToEndorsers

но я получил NullPointerException .. это - реализация, которую я сделал ... не могли бы вы помочь мне найти ошибку, которую я сделал: это метод, используемый для инициализации канала и пиров и для отправки транзакции в hyperledger : 

    CryptoSuite cs = CryptoSuite.Factory.getCryptoSuite();
        this.client.setCryptoSuite(cs);

        // Configure a user
        String resolvedPeerUserPrivateKeyPath = this.properties.getPeerUserPrivateKey();
        String resolvedPeerUserCertificatePath = this.properties.getPeerUserCertificate();
        File peerUserPrivateKeyFile = new File(resolvedPeerUserPrivateKeyPath);
        File peerUserCertificateFile = new File(resolvedPeerUserCertificatePath);

        // Configure the Peer CA
        String resolvedPeerCAPath = this.properties.getPeerCAPath();
        File peerCaFile = new File(resolvedPeerCAPath);

        // Configure the Orderer CA
        String resolvedOrderedCAPath = this.properties.getOrdererCAPath();
        File ordererCaFile = new File(resolvedOrderedCAPath);

        // Configure the sample store file
        String sampleStoreFilePath = this.properties.getSampleStoreFilePath();
        File sampleStoreFile = new File(sampleStoreFilePath);
        SampleStore sampleStore = new SampleStore(sampleStoreFile);

        // Create the user object
        // TODO : Make it configurable
        this.peerUser = sampleStore.getMember(this.properties.getPeerUserName(), this.properties.getPeerUserAddress(),
                this.properties.getPeerUserMspId(), peerUserPrivateKeyFile, peerUserCertificateFile);

        // Use this user for authentication
        this.client.setUserContext(this.peerUser);


        //Create initial discovery peer.


       //  Channel foo = client.newChannel("foo"); //create channel that will be discovered.


        // Connect to an existing channel
        this.channel = this.client.newChannel(this.properties.getChannelName());

        // Configure the TLS authentication properties to discuss with peers
        Properties peerProperties = new Properties();
        peerProperties.setProperty(this.properties.getPeerProperties0Key(), peerCaFile.getAbsolutePath());
        peerProperties.setProperty(this.properties.getPeerProperties1Key(), this.properties.getPeerProperties1Value());
        peerProperties.setProperty(this.properties.getPeerProperties2Key(), this.properties.getPeerProperties2Value());

        // Create the peers' objects
        // TODO: Loop on configured peers
        Properties ordererProperties = new Properties();
        Peer discoveryPeer = this.client.newPeer(this.properties.getPeer0Name(), this.properties.getPeer0Address(),peerProperties);

        /* Peer peer0 = this.client.newPeer(this.properties.getPeer0Name(), this.properties.getPeer0Address(),
                peerProperties); */


        ordererProperties.setProperty(this.properties.getPeerProperties0Key(), ordererCaFile.getAbsolutePath());
        ordererProperties.setProperty(this.properties.getPeerProperties1Key(),
                this.properties.getPeerProperties1Value());
        ordererProperties.setProperty(this.properties.getPeerProperties2Key(),
                this.properties.getPeerProperties2Value());

        // Create the orderer object
        this.orderer = this.client.newOrderer(this.properties.getOrdererName(), this.properties.getOrdererAddress(),
                ordererProperties);

        // TODO: Loop on configured peers
        this.channel.addPeer(discoveryPeer);

        // TODO: Loop on configured orderers
        this.channel.addOrderer(orderer);
        this.channel.initialize();
        this.initialized = true;
    }


private Pair<Collection<ProposalResponse>, CompletableFuture<TransactionEvent>> sendTransaction(
            String chainCodeName, String functionName, String[] arguments)
            throws InvalidArgumentException, ProposalException, ServiceDiscoveryException {
        TransactionProposalRequest tpr = this.client.newTransactionProposalRequest();
        ChaincodeID cid = ChaincodeID.newBuilder().setName(chainCodeName).build();
        tpr.setChaincodeID(cid);
        tpr.setFcn(functionName);
        tpr.setArgs(arguments);
        Collection<ProposalResponse> transactionPropResp =
                this.channel.sendTransactionProposalToEndorsers(tpr,
                        createDiscoveryOptions().setEndorsementSelector(ServiceDiscovery.EndorsementSelector.ENDORSEMENT_SELECTION_RANDOM)
                                .setForceDiscovery(true));
        System.out.println("test test peers endorsers " + transactionPropResp);
        Collection<ProposalResponse> responses;
        try {
            responses = this.channel.sendTransactionProposal(tpr);
        } catch (Exception e1) {
            log.error("Sending trx proposal failed");
            throw (e1);

        }
        Pair<Collection<ProposalResponse>, CompletableFuture<BlockEvent.TransactionEvent>> pair = new Pair<>(responses,
                this.channel.sendTransaction(responses));

        return pair;
    }
```
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