com.github.DNAProject.smartcontract.nativevm.Gas Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of DNA-java-sdk Show documentation
The newest version!
/*
 * Copyright (C) 2018 The DNA Authors
 * This file is part of The DNA library.
 *
 *  The DNA is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  The DNA is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with The DNA.  If not, see .
 *
 */
package com.github.DNAProject.smartcontract.nativevm;

import com.alibaba.fastjson.JSONObject;
import com.github.DNAProject.DnaSdk;
import com.github.DNAProject.account.Account;
import com.github.DNAProject.common.Address;
import com.github.DNAProject.common.ErrorCode;
import com.github.DNAProject.common.Helper;
import com.github.DNAProject.core.asset.State;
import com.github.DNAProject.core.transaction.Transaction;
import com.github.DNAProject.sdk.exception.SDKException;
import com.github.DNAProject.smartcontract.nativevm.abi.NativeBuildParams;
import com.github.DNAProject.smartcontract.nativevm.abi.Struct;

import java.util.ArrayList;
import java.util.List;


/**
 *
 */
public class Gas {
    private DnaSdk sdk;
    private final String contract = "0000000000000000000000000000000000000001";
    private final String gasContract = "0000000000000000000000000000000000000002";

    public Gas(DnaSdk sdk) {
        this.sdk = sdk;
    }

    public String getContractAddress() {
        return gasContract;
    }

    /**
     *
     * @param sendAcct
     * @param recvAddr
     * @param amount
     * @param payerAcct
     * @param gaslimit
     * @param gasprice
     * @return
     * @throws Exception
     */
    public String sendTransfer(Account sendAcct, String recvAddr, long amount, Account payerAcct, long gaslimit, long gasprice) throws Exception {
        if (sendAcct == null || payerAcct == null ) {
            throw new SDKException(ErrorCode.ParamErr("parameters should not be null"));
        }
        if (amount <= 0 || gasprice < 0 || gaslimit < 0) {
            throw new SDKException(ErrorCode.ParamErr("amount or gasprice or gaslimit should not be less than 0"));
        }
        Transaction tx = makeTransfer(sendAcct.getAddressU160().toBase58(), recvAddr, amount, payerAcct.getAddressU160().toBase58(), gaslimit, gasprice);
        sdk.signTx(tx, new Account[][]{{sendAcct}});
        if(!sendAcct.equals(payerAcct)){
            sdk.addSign(tx,payerAcct);
        }
        boolean b = sdk.getConnect().sendRawTransaction(tx.toHexString());
        if (b) {
            return tx.hash().toString();
        }
        return null;
    }
    public String sendTransferMulti(Account[] accounts, State[] states,Account payerAcct,long gaslimit, long gasprice) throws Exception {
        if (accounts == null || payerAcct == null ) {
            throw new SDKException(ErrorCode.ParamErr("parameters should not be null"));
        }
        if (gasprice < 0 || gaslimit < 0) {
            throw new SDKException(ErrorCode.ParamErr("amount or gasprice or gaslimit should not be less than 0"));
        }
        Transaction tx = makeTransfer(states, payerAcct.getAddressU160().toBase58(), gaslimit, gasprice);
        sdk.signTx(tx, new Account[][]{{payerAcct}});
        for(int i =0;i