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Added fat jar creation with new Project.
Fixed the template to generate code correctly.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,61 +1,57 @@ | ||
| package | ||
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| <package_name>; | ||
| package <package_name>; | ||
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| import <package_name>.generated.contracts.HelloWorld; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
| import org.web3j.abi.datatypes.Address; | ||
| import org.web3j.crypto.CipherException; | ||
| import org.web3j.crypto.Credentials; | ||
| import org.web3j.crypto.WalletUtils; | ||
| import org.web3j.protocol.Web3j; | ||
| import org.web3j.protocol.http.HttpService; | ||
| import org.web3j.tx.gas.ContractGasProvider; | ||
| import org.web3j.tx.gas.DefaultGasProvider; | ||
| import org.web3j.protocol.http.HttpService; | ||
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| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.net.URISyntaxException; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Paths; | ||
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| public class<project_name> { | ||
| public class <project_name> { | ||
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| private static final Logger log=LoggerFactory.getLogger(<project_name>.class); | ||
| private static final Logger log=LoggerFactory.getLogger(<project_name>.class); | ||
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| public static void main(String[]args)throws Exception{ | ||
| Credentials credentials=loadCredentials("<wallet_name>","<wallet_password_placeholder>"); | ||
| Web3j web3j=createWeb3jService("RINKEBY_NODE_URL"); | ||
| public static void main(String[]args)throws Exception{ | ||
| Credentials credentials=loadCredentials("<wallet_name>"); | ||
| Web3j web3j=createWeb3jService("ETHEREUM_NODE"); | ||
| HelloWorld helloWorld=deployHelloWorld(web3j,credentials,new DefaultGasProvider()); | ||
| callGreetMethod(helloWorld); | ||
| } | ||
| } | ||
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| private static Credentials loadCredentials(String walletName)throws CipherException,IOException,URISyntaxException{ | ||
| String pathtoProjectResources=String.join(File.separator,System.getProperty("user.dir"),"src","test","resources","wallet"); | ||
| String pathToWallet=String.join(File.separator,pathtoProjectResources,walletName) | ||
| String pathToWalletPasswordFile=String.join(File.separator,pathToProjectResources,) | ||
| File file=new File(pathToWallet); | ||
| private static Credentials loadCredentials(String walletName) throws IOException, CipherException { | ||
| String pathToProjectResources = String.join(File.separator, System.getProperty("user.dir"), "src", "test", "resources", "wallet"); | ||
| String pathToWallet = String.join(File.separator, pathToProjectResources, walletName); | ||
| String pathToWalletPasswordFile = String.join(File.separator, pathToProjectResources, "<passwod_file_name>"); | ||
| File file = new File(pathToWalletPasswordFile); | ||
| log.info("Reading wallet password from resources."); | ||
| String password=new String(Files.readAllBytes(Paths.get(file.toURI()))); | ||
| log.info("Loading wallet file: "+walletName+" from resources."); | ||
| log.info("Creating credentials from from wallet."); | ||
| return WalletUtils.loadCredentials(walletPassword,new File(file)); | ||
| } | ||
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| String password = new String(Files.readAllBytes(Paths.get(file.toURI()))); | ||
| log.info("Loading wallet file: " + walletName + " from resources."); | ||
| log.info("Creating credentials from wallet."); | ||
| return WalletUtils.loadCredentials(password, new File(pathToWallet)); | ||
| } | ||
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| private static Web3j createWeb3jService(String url){ | ||
| private static Web3j createWeb3jService(String url){ | ||
| log.info("Connecting to "+url); | ||
| return Web3j.build(new HttpService(url)); | ||
| } | ||
| } | ||
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| private static HelloWorld deployHelloWorld(Web3j web3j,Credentials credentials,ContractGasProvider contractGasProvider)throws Exception{ | ||
| private static HelloWorld deployHelloWorld(Web3j web3j,Credentials credentials,ContractGasProvider contractGasProvider)throws Exception{ | ||
| return HelloWorld.deploy(web3j,credentials,contractGasProvider,"Hello Blockchain World!").send(); | ||
| } | ||
| } | ||
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| private static void callGreetMethod(HelloWorld helloWorld)throws Exception{ | ||
| private static void callGreetMethod(HelloWorld helloWorld)throws Exception{ | ||
| log.info("Calling the greeting method of contract HelloWorld"); | ||
| String response=helloWorld.greeting().send(); | ||
| log.info("Contract returned: "+response); | ||
| } | ||
| } | ||
| log.info("Contract returned: "+ response); | ||
| } | ||
| } |
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