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ServiceDiscoveryIT.java
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ServiceDiscoveryIT.java
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/*
*
* Copyright 2016,2018 IBM - All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.hyperledger.fabric.sdkintegration;
import java.io.File;
import java.util.Arrays;
import java.util.Collection;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.Properties;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.hyperledger.fabric.sdk.BlockEvent;
import org.hyperledger.fabric.sdk.ChaincodeID;
import org.hyperledger.fabric.sdk.Channel;
import org.hyperledger.fabric.sdk.HFClient;
import org.hyperledger.fabric.sdk.Orderer;
import org.hyperledger.fabric.sdk.Peer;
import org.hyperledger.fabric.sdk.Peer.PeerRole;
import org.hyperledger.fabric.sdk.ProposalResponse;
import org.hyperledger.fabric.sdk.ServiceDiscovery;
import org.hyperledger.fabric.sdk.TransactionProposalRequest;
import org.hyperledger.fabric.sdk.TransactionRequest;
import org.hyperledger.fabric.sdk.exception.TransactionEventException;
import org.hyperledger.fabric.sdk.security.CryptoSuite;
import org.hyperledger.fabric.sdk.testutils.TestConfig;
import org.junit.Ignore;
import org.junit.Test;
import static java.lang.String.format;
import static junit.framework.TestCase.assertEquals;
import static junit.framework.TestCase.assertTrue;
import static junit.framework.TestCase.fail;
import static org.hyperledger.fabric.sdk.Channel.DiscoveryOptions.createDiscoveryOptions;
import static org.hyperledger.fabric.sdk.Channel.PeerOptions.createPeerOptions;
import static org.junit.Assert.assertFalse;
public class ServiceDiscoveryIT {
private static final TestConfig testConfig = TestConfig.getConfig();
File sampleStoreFile = new File(System.getProperty("java.io.tmpdir") + "/HFCSampletest.properties");
String CHAIN_CODE_NAME = "example_cc_go";
TransactionRequest.Type CHAIN_CODE_LANG = TransactionRequest.Type.GO_LANG;
@Ignore //Hostnames reported by service discovery won't work unless you edit hostfile
@Test
public void setup() throws Exception {
//Persistence is not part of SDK. Sample file store is for demonstration purposes only!
// MUST be replaced with more robust application implementation (Database, LDAP)
out("\n\n\nRUNNING: %s.\n", "ServiceDiscoveryIT");
SampleStore sampleStore = new SampleStore(sampleStoreFile);
// SampleUser peerAdmin = sampleStore.getMember("admin", "peerOrg1");
SampleUser user1 = sampleStore.getMember("user1", "peerOrg1");
final HFClient client = HFClient.createNewInstance();
testConfig.getIntegrationTestsSampleOrg("peerOrg1");
client.setCryptoSuite(CryptoSuite.Factory.getCryptoSuite());
client.setUserContext(user1);
Properties properties = testConfig.getPeerProperties("peer0.org1.example.com");
final String protocol = testConfig.isRunningFabricTLS() ? "grpcs:" : "grpc:";
Properties sdprops = new Properties();
//Create initial discovery peer.
Peer discoveryPeer = client.newPeer("peer0.org1.example.com", protocol + "//localhost:7051", properties);
Channel foo = client.newChannel("foo"); //create channel that will be discovered.
foo.addPeer(discoveryPeer, createPeerOptions().setPeerRoles(EnumSet.of(PeerRole.SERVICE_DISCOVERY, PeerRole.LEDGER_QUERY, PeerRole.EVENT_SOURCE, PeerRole.CHAINCODE_QUERY)));
// Need to provide client TLS certificate and key files when running mutual tls.
if (testConfig.isRunningFabricTLS()) {
sdprops.put("org.hyperledger.fabric.sdk.discovery.default.clientCertFile", "src/test/fixture/sdkintegration/e2e-2Orgs/v1.2/crypto-config/peerOrganizations/org1.example.com/users/User1@org1.example.com/tls/client.crt");
sdprops.put("org.hyperledger.fabric.sdk.discovery.default.clientKeyFile", "src/test/fixture/sdkintegration/e2e-2Orgs/v1.2/crypto-config/peerOrganizations/org1.example.com/users/User1@org1.example.com/tls/client.key");
// Need to do host name override for true tls in testing environment
sdprops.put("org.hyperledger.fabric.sdk.discovery.endpoint.hostnameOverride.localhost:7050", "orderer.example.com");
sdprops.put("org.hyperledger.fabric.sdk.discovery.endpoint.hostnameOverride.localhost:7051", "peer0.org1.example.com");
sdprops.put("org.hyperledger.fabric.sdk.discovery.endpoint.hostnameOverride.localhost:7056", "peer1.org1.example.com");
} else {
sdprops.put("org.hyperledger.fabric.sdk.discovery.default.protocol", "grpc:");
}
foo.setServiceDiscoveryProperties(sdprops);
final byte[] bytes = foo.serializeChannel(); // Next 3 lines are for testing purposes only!
foo.shutdown(false);
foo = client.deSerializeChannel(bytes);
foo.initialize(); // initialize the channel.
Set<String> expect = new HashSet<>(Arrays.asList(protocol + "//orderer.example.com:7050")); //discovered orderer
for (Orderer orderer : foo.getOrderers()) {
expect.remove(orderer.getUrl());
}
assertTrue(expect.isEmpty());
final Collection<String> discoveredChaincodeNames = foo.getDiscoveredChaincodeNames();
assertTrue(discoveredChaincodeNames.contains(CHAIN_CODE_NAME));
ChaincodeID.Builder chaincodeIDBuilder = ChaincodeID.newBuilder().setName(CHAIN_CODE_NAME);
ChaincodeID chaincodeID = chaincodeIDBuilder.build();
///////////////
/// Send transaction proposal to all peers
TransactionProposalRequest transactionProposalRequest = client.newTransactionProposalRequest();
transactionProposalRequest.setChaincodeID(chaincodeID);
transactionProposalRequest.setChaincodeLanguage(CHAIN_CODE_LANG);
transactionProposalRequest.setFcn("move");
transactionProposalRequest.setProposalWaitTime(testConfig.getProposalWaitTime());
transactionProposalRequest.setArgs("a", "b", "1");
//Send proposal request discovering the what endorsers (peers) are needed.
Collection<ProposalResponse> transactionPropResp =
foo.sendTransactionProposalToEndorsers(transactionProposalRequest,
createDiscoveryOptions().setEndorsementSelector(ServiceDiscovery.EndorsementSelector.ENDORSEMENT_SELECTION_RANDOM)
.setForceDiscovery(true));
assertFalse(transactionPropResp.isEmpty());
transactionProposalRequest = client.newTransactionProposalRequest();
transactionProposalRequest.setChaincodeID(chaincodeID);
transactionProposalRequest.setChaincodeLanguage(CHAIN_CODE_LANG);
transactionProposalRequest.setFcn("move");
transactionProposalRequest.setProposalWaitTime(testConfig.getProposalWaitTime());
transactionProposalRequest.setArgs("a", "b", "1");
//Send proposal request discovering the what endorsers (peers) are needed.
transactionPropResp =
foo.sendTransactionProposalToEndorsers(transactionProposalRequest,
createDiscoveryOptions().ignoreEndpoints("blah.blah.blah.com:90", "blah.com:80",
// aka peer0.org1.example.com our discovery peer. Lets ignore it in endorsers selection and see if other discovered peer endorses.
"peer0.org1.example.com:7051")
// if chaincode makes additional chaincode calls or uses collections you should add them with setServiceDiscoveryChaincodeInterests
// .setServiceDiscoveryChaincodeInterests(Channel.ServiceDiscoveryChaincodeCalls.createServiceDiscoveryChaincodeCalls("someOtherChaincodeName").addCollections("collection1", "collection2"))
);
assertEquals(transactionPropResp.size(), 1);
final ProposalResponse proposalResponse = transactionPropResp.iterator().next();
final Peer peer = proposalResponse.getPeer();
assertEquals(protocol + "//peer1.org1.example.com:7056", peer.getUrl()); // not our discovery peer but the discovered one.
String expectedTransactionId = null;
final StringBuilder evenTransactionId = new StringBuilder();
for (ProposalResponse response : transactionPropResp) {
expectedTransactionId = response.getTransactionID();
if (response.getStatus() != ProposalResponse.Status.SUCCESS || !response.isVerified()) {
fail("Failed status bad endorsement");
}
}
//Send it to the orderer that was discovered.
foo.sendTransaction(transactionPropResp).thenApply(transactionEvent -> {
evenTransactionId.setLength(0);
evenTransactionId.append(transactionEvent.getTransactionID());
return null;
}).exceptionally(e -> {
if (e instanceof TransactionEventException) {
BlockEvent.TransactionEvent te = ((TransactionEventException) e).getTransactionEvent();
if (te != null) {
throw new AssertionError(format("Transaction with txid %s failed. %s", te.getTransactionID(), e.getMessage()), e);
}
}
throw new AssertionError(format("Test failed with %s exception %s", e.getClass().getName(), e.getMessage()), e);
}).get(testConfig.getTransactionWaitTime(), TimeUnit.SECONDS);
assertEquals(expectedTransactionId, evenTransactionId.toString());
out("That's all folks!");
}
static void out(String format, Object... args) {
System.err.flush();
System.out.flush();
System.out.println(format(format, args));
System.err.flush();
System.out.flush();
}
}