io.web3service.web3j.contract.BaseErc20Contract Maven / Gradle / Ivy

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package io.web3service.web3j.contract;

import org.web3j.abi.TypeReference;
import org.web3j.abi.datatypes.Address;
import org.web3j.abi.datatypes.Function;
import org.web3j.abi.datatypes.Type;
import org.web3j.abi.datatypes.Utf8String;
import org.web3j.abi.datatypes.generated.Uint256;
import org.web3j.abi.datatypes.generated.Uint8;
import org.web3j.crypto.Credentials;
import org.web3j.protocol.Web3j;
import org.web3j.protocol.core.RemoteCall;
import org.web3j.protocol.core.methods.response.TransactionReceipt;
import org.web3j.tx.Contract;
import org.web3j.tx.TransactionManager;
import org.web3j.tx.gas.ContractGasProvider;

import java.math.BigInteger;
import java.util.Arrays;
import java.util.Collections;

/**
 * @author github.com/x-saofen
 */
public class BaseErc20Contract extends Contract {

    public BaseErc20Contract(String contractBinary, String contractAddress, Web3j web3j, Credentials credentials, ContractGasProvider gasProvider) {
        super(contractBinary, contractAddress, web3j, credentials, gasProvider);
    }

    public BaseErc20Contract(String contractBinary, String contractAddress, Web3j web3j, TransactionManager transactionManager, ContractGasProvider gasProvider) {
        super(contractBinary, contractAddress, web3j, transactionManager, gasProvider);
    }

    public RemoteCall name() {
        final Function function = new Function("name",
                Arrays.asList(),
                Arrays.>asList(new TypeReference() {
                }));
        return executeRemoteCallSingleValueReturn(function, String.class);
    }

    public RemoteCall approve(String _spender, BigInteger _value) {
        final Function function = new Function(
                "approve",
                Arrays.asList(new Address(_spender),
                        new Uint256(_value)),
                Collections.>emptyList());
        return executeRemoteCallTransaction(function);
    }

    public RemoteCall totalSupply() {
        final Function function = new Function("totalSupply",
                Arrays.asList(),
                Arrays.>asList(new TypeReference() {
                }));
        return executeRemoteCallSingleValueReturn(function, BigInteger.class);
    }

    public RemoteCall transferFrom(String _from, String _to, BigInteger _value) {
        final Function function = new Function(
                "transferFrom",
                Arrays.asList(new Address(_from),
                        new Address(_to),
                        new Uint256(_value)),
                Collections.>emptyList());
        return executeRemoteCallTransaction(function);
    }

    public RemoteCall initialSupply() {
        final Function function = new Function("INITIAL_SUPPLY",
                Arrays.asList(),
                Arrays.>asList(new TypeReference() {
                }));
        return executeRemoteCallSingleValueReturn(function, BigInteger.class);
    }

    public RemoteCall decimals() {
        final Function function = new Function("decimals",
                Arrays.asList(),
                Arrays.>asList(new TypeReference() {
                }));
        return executeRemoteCallSingleValueReturn(function, BigInteger.class);
    }

    public RemoteCall decreaseApproval(String _spender, BigInteger _subtractedValue) {
        final Function function = new Function(
                "decreaseApproval",
                Arrays.asList(new Address(_spender),
                        new Uint256(_subtractedValue)),
                Collections.emptyList());
        return executeRemoteCallTransaction(function);
    }

    public RemoteCall balanceOf(String _owner) {
        final Function function = new Function("balanceOf",
                Arrays.asList(new Address(_owner)),
                Arrays.asList(new TypeReference() {
                }));
        return executeRemoteCallSingleValueReturn(function, BigInteger.class);
    }

    public RemoteCall symbol() {
        final Function function = new Function("symbol",
                Arrays.asList(),
                Arrays.asList(new TypeReference() {
                }));
        return executeRemoteCallSingleValueReturn(function, String.class);
    }

    public RemoteCall transfer(String _to, BigInteger _value) {
        final Function function = new Function(
                "transfer",
                Arrays.asList(new Address(_to),
                        new Uint256(_value)),
                Collections.emptyList());
        return executeRemoteCallTransaction(function);
    }

    public RemoteCall increaseApproval(String _spender, BigInteger _addedValue) {
        final Function function = new Function(
                "increaseApproval",
                Arrays.asList(new Address(_spender),
                        new Uint256(_addedValue)),
                Collections.emptyList());
        return executeRemoteCallTransaction(function);
    }

    public RemoteCall allowance(String _owner, String _spender) {
        final Function function = new Function("allowance",
                Arrays.asList(new Address(_owner),
                        new Address(_spender)),
                Arrays.asList(new TypeReference() {
                }));
        return executeRemoteCallSingleValueReturn(function, BigInteger.class);
    }


}