QueryChaincode Test

Don't work, grpc Unavailable ?

src/main/java/blockchain/client/ChannelClientWrapper.java

@@ -1,7 +1,14 @@
 package blockchain.client;
 
 
+import org.hyperledger.fabric.sdk.ChaincodeID;
 import org.hyperledger.fabric.sdk.Channel;
+import org.hyperledger.fabric.sdk.ProposalResponse;
+import org.hyperledger.fabric.sdk.QueryByChaincodeRequest;
+import org.hyperledger.fabric.sdk.exception.InvalidArgumentException;
+import org.hyperledger.fabric.sdk.exception.ProposalException;
+
+import java.util.Collection;
 
 public class ChannelClientWrapper {
     private String name;
@@ -25,4 +32,18 @@ public class ChannelClientWrapper {
         this.channel=channel;
         this.fabricClientWrapper=fabricClientWrapper;
     }
+
+    public Collection<ProposalResponse> queryByChainCode(String chaincodeName,String fuctionName, String[] args) throws InvalidArgumentException, ProposalException {
+        QueryByChaincodeRequest request = fabricClientWrapper.getClient().newQueryProposalRequest();
+        ChaincodeID chaincodeID = ChaincodeID.newBuilder().setName(chaincodeName).build();
+        request.setChaincodeID(chaincodeID);
+        request.setFcn(fuctionName);
+        if(args != null){
+            request.setArgs(args);
+        }
+
+        Collection<ProposalResponse> response = channel.queryByChaincode(request);
+
+        return response;
+    }
 }

src/test/java/blockchain/query/QueryTest.java

@@ -1,14 +1,16 @@
 package blockchain.query;
 
+import blockchain.client.ChannelClientWrapper;
 import blockchain.client.FabricClientWrapper;
 import blockchain.configuration.Config;
 import blockchain.user.UserContext;
 import blockchain.utility.Util;
 import org.apache.log4j.BasicConfigurator;
 import org.apache.log4j.Logger;
-import org.hyperledger.fabric.sdk.Peer;
+import org.hyperledger.fabric.sdk.*;
 import org.junit.Test;
 
+import java.util.Collection;
 import java.util.Set;
 
 public class QueryTest {
@@ -19,9 +21,33 @@ public class QueryTest {
         BasicConfigurator.configure();
         UserContext admin = Util.readUserContext(Config.ORG1,Config.ADMIN);
         try{
+            String chaincode = "mycc";
             FabricClientWrapper fabricClientWrapper = new FabricClientWrapper(admin);
-            Set<String> channels = fabricClientWrapper.queryForChannels();
-            logger.info("Channels : "+channels);
+            ChannelClientWrapper channelClientWrapper = fabricClientWrapper.createChannelClient(Config.CHANNEL_NAME);
+
+            Channel channel = channelClientWrapper.getChannel();
+            Peer peer = fabricClientWrapper.getClient().newPeer(Config.ORG1_PEER_0,Config.ORG1_PEER_0_URL);
+            EventHub eventHub = fabricClientWrapper.getClient().newEventHub("eventhub01", "grpc://vps577432.ovh.net:7053");
+            Orderer orderer = fabricClientWrapper.getClient().newOrderer(Config.ORDERER_NAME,Config.ORDERER_URL);
+            channel.addPeer(peer);
+            channel.addEventHub(eventHub);
+            channel.addOrderer(orderer);
+            channel.initialize();
+
+
+            String[] args1 = {"a"};
+
+            Collection<ProposalResponse> responseQuery = channelClientWrapper.queryByChainCode(chaincode,"query",args1);
+            for(ProposalResponse pres : responseQuery){
+                ChaincodeResponse.Status status = pres.getStatus();
+                if(status.getStatus()!=200){
+                    throw new Exception(pres.getMessage());
+                }
+                String stringResponse = new String(pres.getChaincodeActionResponsePayload());
+                logger.info("RESPONSE : "+stringResponse);
+            }
+
+
         }catch (Exception e){
             e.printStackTrace();
         }