Java Code Examples for org.hyperledger.fabric.sdk.HFClient#newChannel()
The following examples show how to use
org.hyperledger.fabric.sdk.HFClient#newChannel() .
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Example 1
| Source File: FabricSDKWrapper.java From WeEvent with Apache License 2.0 | 5 votes |
|
public static Channel initializeChannel(HFClient client, String channelName, FabricConfig fabricConfig) throws InvalidArgumentException, TransactionException {
Orderer orderer1 = getOrderer(client, fabricConfig);
Peer peer0 = getPeer(client, fabricConfig);
Channel channel = client.newChannel(channelName);
channel.addOrderer(orderer1);
channel.addPeer(peer0);
channel.initialize();
return channel;
}
Example 2
| Source File: QueryBlock.java From fabric-jdbc-connector with Apache License 2.0 | 5 votes |
|
public Channel reconstructChannel(List<Peer> peers, HFClient client) {
checkConfig();
try {
org.apache.log4j.Level setTo = null;
setTo = org.apache.log4j.Level.DEBUG;
org.apache.log4j.Logger.getLogger("org.hyperledger.fabric").setLevel(setTo);
Channel newChannel = null;
client.setUserContext(user);
newChannel = client.newChannel(channelName);
for (String orderName : userOrg.getOrdererNames()) {
newChannel.addOrderer(client.newOrderer(orderName, userOrg.getOrdererLocation(orderName),
conf.getOrdererProperties(orderName)));
}
for (Peer peer : peers) {
logger.debug(peer.getName());
newChannel.addPeer(peer);
userOrg.addPeer(peer);
}
newChannel.initialize();
return newChannel;
} catch (Exception e) {
String errMsg = "QueryBlock | reconstructChannel " + e;
logger.error(errMsg);
throw new BlkchnException(errMsg, e);
}
}
Example 3
| Source File: FabricUtils.java From fabric-java-block with GNU General Public License v3.0 | 5 votes |
|
public static Channel initChannel(HFClient client, BlockChainOrgUserDTO userDTO, BlockChainOrgDTO currentOrgDTO,
BlockChainChannelDTO channelDTO, BaasRouteDTO routeDTO, List<BlockChainOrdererDTO> ordererList) throws Exception {
client.setCryptoSuite(CryptoSuite.Factory.getCryptoSuite());
// 实例化用户需要先在控制台-证书管理中申请客户端证书，申请的企业名称需要与当前登录账户实名认证的企业名称相同
FabricUser user = new FabricUser(userDTO.getOrgUserName(), new FabricEnrollment(userDTO.getOrgUserKey(), userDTO.getOrgUserCert()),
currentOrgDTO.getMspId());
client.setUserContext(user);
Channel chain = client.newChannel(channelDTO.getChannelKey());
for(BlockChainOrdererDTO ordererDTO: ordererList) {
chain.addOrderer(client.newOrderer(ordererDTO.getOrdererKey(), routeDTO.getEndPoint(),
FabricConfig.getOrderProperties(routeDTO.getSecretId(),routeDTO.getSecretKey(),ordererDTO.getOrdererKey())));
}
for(BlockChainOrgNodeDTO nodeDTO : currentOrgDTO.getNodeList()){
chain.addPeer(client.newPeer(nodeDTO.getNodeKey(), routeDTO.getEndPoint(), FabricConfig.getPeerProperties(routeDTO.getSecretId(),
routeDTO.getSecretKey(),nodeDTO.getNodeKey())),
createPeerOptions().setPeerRoles(EnumSet.of(Peer.PeerRole.ENDORSING_PEER,
Peer.PeerRole.LEDGER_QUERY, Peer.PeerRole.CHAINCODE_QUERY, Peer.PeerRole.EVENT_SOURCE)));
//registerEventsForFilteredBlocks()
}
chain.initialize();
return chain;
}
Example 4
| Source File: ChaincodeManager.java From fabric-net-server with Apache License 2.0 | 4 votes |
|
private Channel getChannel(FabricOrg fabricOrg, HFClient client)
throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeySpecException, IOException, CryptoException, InvalidArgumentException, TransactionException {
Channel channel = client.newChannel(chaincode.getChannelName());
log.debug("Get Chain " + chaincode.getChannelName());
channel.setTransactionWaitTime(chaincode.getTransactionWaitTime());
channel.setDeployWaitTime(chaincode.getDeployWaitTime());
for (int i = 0; i < peers.get().size(); i++) {
File peerCert = Paths.get(config.getCryptoConfigPath(), "/peerOrganizations", peers.getOrgDomainName(), "peers", peers.get().get(i).getPeerName(), "tls/server.crt")
.toFile();
if (!peerCert.exists()) {
throw new RuntimeException(
String.format("Missing cert file for: %s. Could not find at location: %s", peers.get().get(i).getPeerName(), peerCert.getAbsolutePath()));
}
Properties peerProperties = new Properties();
peerProperties.setProperty("pemFile", peerCert.getAbsolutePath());
// ret.setProperty("trustServerCertificate", "true"); //testing
// environment only NOT FOR PRODUCTION!
peerProperties.setProperty("hostnameOverride", peers.getOrgDomainName());
peerProperties.setProperty("sslProvider", "openSSL");
peerProperties.setProperty("negotiationType", "TLS");
// 在grpc的NettyChannelBuilder上设置特定选项
peerProperties.put("grpc.ManagedChannelBuilderOption.maxInboundMessageSize", 9000000);
channel.addPeer(client.newPeer(peers.get().get(i).getPeerName(), fabricOrg.getPeerLocation(peers.get().get(i).getPeerName()), peerProperties));
if (peers.get().get(i).isAddEventHub()) {
channel.addEventHub(
client.newEventHub(peers.get().get(i).getPeerEventHubName(), fabricOrg.getEventHubLocation(peers.get().get(i).getPeerEventHubName()), peerProperties));
}
}
for (int i = 0; i < orderers.get().size(); i++) {
File ordererCert = Paths.get(config.getCryptoConfigPath(), "/ordererOrganizations", orderers.getOrdererDomainName(), "orderers", orderers.get().get(i).getOrdererName(),
"tls/server.crt").toFile();
if (!ordererCert.exists()) {
throw new RuntimeException(
String.format("Missing cert file for: %s. Could not find at location: %s", orderers.get().get(i).getOrdererName(), ordererCert.getAbsolutePath()));
}
Properties ordererProperties = new Properties();
ordererProperties.setProperty("pemFile", ordererCert.getAbsolutePath());
ordererProperties.setProperty("hostnameOverride", orderers.getOrdererDomainName());
ordererProperties.setProperty("sslProvider", "openSSL");
ordererProperties.setProperty("negotiationType", "TLS");
ordererProperties.put("grpc.ManagedChannelBuilderOption.maxInboundMessageSize", 9000000);
ordererProperties.setProperty("ordererWaitTimeMilliSecs", "300000");
channel.addOrderer(
client.newOrderer(orderers.get().get(i).getOrdererName(), fabricOrg.getOrdererLocation(orderers.get().get(i).getOrdererName()), ordererProperties));
}
log.debug("channel.isInitialized() = " + channel.isInitialized());
if (!channel.isInitialized()) {
channel.initialize();
}
if (config.isRegisterEvent()) {
log.debug("========================Event事件监听注册========================");
channel.registerBlockListener(new BlockListener() {
@Override
public void received(BlockEvent event) {
// TODO
log.debug("========================Event事件监听开始========================");
try {
log.debug("event.getChannelId() = " + event.getChannelId());
log.debug("event.getEvent().getChaincodeEvent().getPayload().toStringUtf8() = " + event.getEvent().getChaincodeEvent().getPayload().toStringUtf8());
log.debug("event.getBlock().getData().getDataList().size() = " + event.getBlock().getData().getDataList().size());
ByteString byteString = event.getBlock().getData().getData(0);
String result = byteString.toStringUtf8();
log.debug("byteString.toStringUtf8() = " + result);
String r1[] = result.split("END CERTIFICATE");
String rr = r1[2];
log.debug("rr = " + rr);
} catch (InvalidProtocolBufferException e) {
// TODO
e.printStackTrace();
}
log.debug("========================Event事件监听结束========================");
}
});
}
return channel;
}
Example 5
| Source File: UpdateChannelIT.java From fabric-sdk-java with Apache License 2.0 | 4 votes |
|
private Channel reconstructChannel(final boolean isSystemChannel, String name, HFClient client, SampleOrg sampleOrg) throws Exception {
client.setUserContext(isSystemChannel ? ordererAdmin : sampleOrg.getPeerAdmin());
Channel newChannel = client.newChannel(name);
for (String orderName : sampleOrg.getOrdererNames()) {
newChannel.addOrderer(client.newOrderer(orderName, sampleOrg.getOrdererLocation(orderName),
testConfig.getOrdererProperties(orderName)));
}
if (isSystemChannel) { // done
newChannel.initialize();
return newChannel;
}
assertTrue(sampleOrg.getPeerNames().size() > 1); // need at least two for testing.
int i = 0;
for (String peerName : sampleOrg.getPeerNames()) {
String peerLocation = sampleOrg.getPeerLocation(peerName);
Peer peer = client.newPeer(peerName, peerLocation, testConfig.getPeerProperties(peerName));
//Query the actual peer for which channels it belongs to and check it belongs to this channel
Set<String> channels = client.queryChannels(peer);
if (!channels.contains(name)) {
throw new AssertionError(format("Peer %s does not appear to belong to channel %s", peerName, name));
}
Channel.PeerOptions peerOptions = createPeerOptions().setPeerRoles(EnumSet.of(Peer.PeerRole.CHAINCODE_QUERY,
Peer.PeerRole.ENDORSING_PEER, Peer.PeerRole.LEDGER_QUERY, Peer.PeerRole.EVENT_SOURCE));
if (i % 2 == 0) {
peerOptions.registerEventsForFilteredBlocks(); // we need a mix of each type for testing.
} else {
peerOptions.registerEventsForBlocks();
}
++i;
newChannel.addPeer(peer, peerOptions);
}
//For testing of blocks which are not transactions.
newChannel.registerBlockListener(blockEvent -> {
eventQueueCaputure.add(blockEvent); // used with the other queued to make sure same.
// Note peer eventing will always start with sending the last block so this will get the last endorser block
int transactions = 0;
int nonTransactions = 0;
for (BlockInfo.EnvelopeInfo envelopeInfo : blockEvent.getEnvelopeInfos()) {
if (BlockInfo.EnvelopeType.TRANSACTION_ENVELOPE == envelopeInfo.getType()) {
++transactions;
} else {
assertEquals(BlockInfo.EnvelopeType.ENVELOPE, envelopeInfo.getType());
++nonTransactions;
}
}
assertTrue(format("nontransactions %d, transactions %d", nonTransactions, transactions), nonTransactions < 2); // non transaction blocks only have one envelope
assertTrue(format("nontransactions %d, transactions %d", nonTransactions, transactions), nonTransactions + transactions > 0); // has to be one.
assertFalse(format("nontransactions %d, transactions %d", nonTransactions, transactions), nonTransactions > 0 && transactions > 0); // can't have both.
if (nonTransactions > 0) { // this is an update block -- don't care about others here.
if (blockEvent.isFiltered()) {
++eventCountFilteredBlock; // make sure we're seeing non transaction events.
} else {
++eventCountBlock;
}
assertEquals(0, blockEvent.getTransactionCount());
assertEquals(1, blockEvent.getEnvelopeCount());
for (TransactionEvent transactionEvent : blockEvent.getTransactionEvents()) {
fail("Got transaction event in a block update"); // only events for update should not have transactions.
}
}
});
// Register Queued block listeners just for testing use both ways.
// Ideally an application would have it's own independent thread to monitor and take off elements as fast as they can.
// This would wait forever however if event could not be put in the queue like if the capacity is at a maximum. For LinkedBlockingQueue so unlikely
listenerHandler1 = newChannel.registerBlockListener(blockingQueue1);
assertNotNull(listenerHandler1);
// This is the same but put a timeout on it. If its not queued in time like if the queue is full it would generate a log warning and ignore the event.
listenerHandler2 = newChannel.registerBlockListener(blockingQueue2, 1L, TimeUnit.SECONDS);
assertNotNull(listenerHandler2);
newChannel.initialize();
return newChannel;
}
