<feat>(client&connection): init client&connection&account code

build.gradle

@@ -90,6 +90,9 @@ dependencies {
         exclude group: "io.netty"
         exclude group: 'org.fisco-bcos', module: 'tcnative'
     }
+
+    implementation 'org.web3j:core:4.9.8'
+
     // implementation('org.fisco-bcos.java-sdk:fisco-bcos-sdk-abi:2.10.0-SNAPSHOT')
 
     // Use JUnit test framework
@@ -124,15 +127,8 @@ sourceSets {
 
 shadowJar {
     dependsOn(copyHooks)
-    dependencies {
-        //排除掉io.netty:.*，不打包进fat jar
-        exclude(dependency('io.netty:.*'))
-    }
     mergeServiceFiles()
-    minimize{
-        //不优化处理io.grpc:.*，直接打进fat jar
-        exclude(dependency('io.grpc:.*'))
-    }
+    minimize()
 }
 
 

settings.gradle

@@ -0,0 +1,9 @@
+pluginManagement {
+    repositories {
+        maven {
+            url 'https://maven.aliyun.com/repository/gradle-plugin'
+        }
+        gradlePluginPortal()
+    }
+}
+rootProject.name = 'WeCross-Web3-Stub'

src/main/java/com/webank/wecross/stub/web3/Web3BaseStubFactory.java

@@ -0,0 +1,61 @@
+package com.webank.wecross.stub.web3;
+
+import com.webank.wecross.stub.Account;
+import com.webank.wecross.stub.Connection;
+import com.webank.wecross.stub.Driver;
+import com.webank.wecross.stub.StubFactory;
+import com.webank.wecross.stub.WeCrossContext;
+import com.webank.wecross.stub.web3.account.Web3AccountFactory;
+import com.webank.wecross.stub.web3.common.Web3Constant;
+import java.util.Map;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class Web3BaseStubFactory implements StubFactory {
+  private static final Logger logger = LoggerFactory.getLogger(Web3BaseStubFactory.class);
+
+  @Override
+  public void init(WeCrossContext weCrossContext) {}
+
+  @Override
+  public Driver newDriver() {
+    return null;
+  }
+
+  @Override
+  public Connection newConnection(String path) {
+    try {
+      logger.info("New connection: {}", path);
+      Web3Connection connection = Web3ConnectionFactory.build(path, Web3Constant.STUB_TOML_NAME);
+
+      // check proxy contract
+      if (!connection.hasProxyDeployed()) {
+        String errorMsg = "WeCrossProxy error: WeCrossProxy contract has not been deployed!";
+        System.out.println(errorMsg);
+        throw new Exception(errorMsg);
+      }
+
+      // check hub contract
+      if (!connection.hasHubDeployed()) {
+        String errorMsg = "WeCrossHub error: WeCrossHub contract has not been deployed!";
+        System.out.println(errorMsg);
+        throw new Exception(errorMsg);
+      }
+      return connection;
+    } catch (Exception e) {
+      logger.error("New connection fail, e: ", e);
+      return null;
+    }
+  }
+
+  @Override
+  public Account newAccount(Map<String, Object> properties) {
+    return Web3AccountFactory.build(properties);
+  }
+
+  @Override
+  public void generateAccount(String path, String[] args) {}
+
+  @Override
+  public void generateConnection(String path, String[] args) {}
+}