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Add sdk java sample

pull/139/head
Baohua Yang 2021-08-18 14:17:14 -07:00
parent be15c3ad6f
commit ee10e60386
4 changed files with 276 additions and 0 deletions
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11
hyperledger_fabric/v2.2.1/gateway-java/auto.sh 100644
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# Do patch on the grpc-java
#rm ~/.m2/repository/io/grpc/grpc-netty-shaded/1.38.0/grpc-netty-shaded-1.38.0.jar
#mvn install:install-file -Dfile=grpc-netty-shaded-build/grpc-netty-shaded-1.38.0.jar -DgroupId=io.grpc -DartifactId=grpc-netty-shaded -Dversion=1.38.0 -Dpackaging=jar
# Compile if the source code is changed
mvn compile
# Run the method
mvn exec:java \
-Dexec.cleanupDaemonThreads=false \
-Dexec.mainClass="sample.Sample"

122
hyperledger_fabric/v2.2.1/gateway-java/connection.json 100644
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{
"name": "basic-network",
"version": "1.0.0",
"client": {
"organization": "Org1",
"connection": {
"timeout": {
"peer": {
"endorser": "300"
},
"orderer": "300"
}
}
},
"channels": {
"mychannel": {
"orderers": [
"orderer0.example.com"
],
"peers": {
"peer0.org1.example.com": {
"endorsingPeer": true,
"chaincodeQuery": true,
"ledgerQuery": true,
"eventSource": true
}
}
}
},
"organizations": {
"Org1": {
"mspid": "Org1MSP",
"peers": [
"peer0.org1.example.com"
],
"certificateAuthorities": [
"ca-org1"
],
"adminPrivateKeyPEM": {
"path": "/opt/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/keystore/priv_sk"
},
"signedCertPEM": {
"path": "/opt/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/signcerts/Admin@org1.example.com-cert.pem"
}
}
},
"orderers": {
"orderer0.example.com": {
"url": "grpcs://orderer0.example.com:7050",
"mspid": "OrdererMSP",
"grpcOptions": {
"ssl-target-name-override": "orderer0.example.com",
"hostnameOverride": "orderer0.example.com"
},
"tlsCACerts": {
"path": "/opt/crypto-config/ordererOrganizations/example.com/orderers/orderer0.example.com/tls/ca.crt"
},
"adminPrivateKeyPEM": {
"path": "/opt/crypto-config/ordererOrganizations/example.com/users/Admin@example.com/msp/keystore/priv_sk"
},
"signedCertPEM": {
"path": "/opt/crypto-config/ordererOrganizations/example.com/users/Admin@example.com/msp/signcerts/Admin@example.com-cert.pem"
}
}
},
"peers": {
"peer0.org1.example.com": {
"url": "grpcs://peer0.org1.example.com:7051",
"grpcOptions": {
"ssl-target-name-override": "peer0.org1.example.com",
"hostnameOverride": "peer0.org1.example.com",
"request-timeout": 120001
},
"tlsCACerts": {
"path": "/opt/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt"
}
},
"peer0.org2.example.com": {
"url": "grpcs://peer0.org2.example.com:7051",
"grpcOptions": {
"ssl-target-name-override": "peer0.org2.example.com",
"hostnameOverride": "peer0.org2.example.com",
"request-timeout": 120001
},
"tlsCACerts": {
"path": "/opt/crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt"
}
}
},
"certificateAuthorities": {
"ca-org1": {
"url": "https://localhost:7054",
"grpcOptions": {
"verify": true
},
"tlsCACerts": {
"path": "/opt/crypto-config/peerOrganizations/org1.example.com/ca/ca.org1.example.com-cert.pem"
},
"registrar": [
{
"enrollId": "admin",
"enrollSecret": "adminpw"
}
]
},
"ca-org2": {
"url": "https://localhost:8054",
"grpcOptions": {
"verify": true
},
"tlsCACerts": {
"path": "/opt/crypto-config/peerOrganizations/org2.example.com/ca/ca.org2.example.com-cert.pem"
},
"registrar": [
{
"enrollId": "admin",
"enrollSecret": "adminpw"
}
]
}
}
}

86
hyperledger_fabric/v2.2.1/gateway-java/pom.xml 100644
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<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>sample</groupId>
<artifactId>sample</artifactId>
<version>1.0.0</version>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.2.0</version>
<executions>
<!-- Attach the shade goal into the package phase -->
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>oss-sonatype</id>
<name>OSS Sonatype</name>
<url>https://oss.sonatype.org/content/repositories/snapshots</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.hyperledger.fabric</groupId>
<artifactId>fabric-gateway-java</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-launcher</artifactId>
<version>1.4.2</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.4.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>5.4.2</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.12.2</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>

57
hyperledger_fabric/v2.2.1/gateway-java/src/main/java/sample/Sample.java 100644
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package sample;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.concurrent.TimeoutException;
import org.hyperledger.fabric.gateway.Contract;
import org.hyperledger.fabric.gateway.ContractException;
import org.hyperledger.fabric.gateway.Gateway;
import org.hyperledger.fabric.gateway.Network;
import org.hyperledger.fabric.gateway.Wallet;
import org.hyperledger.fabric.gateway.Wallets;
public class Sample {
public static void main(String[] args) throws IOException {
String connectProfilePath="connection.json";
String channelName="businesschannel";
String walletPath="/opt/test/wallet";
String chaincodeName="exp02";
// Load an existing wallet holding identities used to access the network.
Path walletDirectory = Paths.get(walletPath);
Wallet wallet = Wallets.newFileSystemWallet(walletDirectory);
// Path to a common connection profile describing the network.
Path networkConfigFile = Paths.get(connectProfilePath);
// Configure the gateway connection used to access the network.
Gateway.Builder builder = Gateway.createBuilder()
.identity(wallet, "admin")
.networkConfig(networkConfigFile);
// Create a gateway connection
try (Gateway gateway = builder.connect()) {
// Obtain a smart contract deployed on the network.
Network network = gateway.getNetwork(channelName);
Contract contract = network.getContract(chaincodeName);
// Submit transactions that store state to the ledger.
byte[] createCarResult = contract.createTransaction("invoke")
.submit( "a", "b", "10");
System.out.println(new String(createCarResult, StandardCharsets.UTF_8));
// Evaluate transactions that query state from the ledger.
byte[] queryAllCarsResult = contract.evaluateTransaction("query", "a");
System.out.println(new String(queryAllCarsResult, StandardCharsets.UTF_8));
} catch (ContractException | TimeoutException | InterruptedException e) {
e.printStackTrace();
}
System.exit(0);
}
}