org.polkadot.rpc.provider.coder.RpcCoder Maven / Gradle / Ivy

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Java Polkadot API, this is a clone of https://github.com/polkadot-java/api

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package org.polkadot.rpc.provider.coder;

import com.alibaba.fastjson.JSON;
import org.polkadot.rpc.provider.Types.JsonRpcError;
import org.polkadot.rpc.provider.Types.JsonRpcRequest;
import org.polkadot.rpc.provider.Types.JsonRpcResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

public class RpcCoder {
    private static final Logger logger = LoggerFactory.getLogger(RpcCoder.class);

    private AtomicInteger id = new AtomicInteger(0);

    public Object decodeResponse(JsonRpcResponse response) {
        assert response != null : "Empty response object received";
        assert "2.0".equals(response.getJsonrpc()) : "Invalid jsonrpc field in decoded object";

        boolean isSubscription = response.getParams() != null && response.getMethod() != null;
        //    assert(isNumber(response.id) || (isSubscription && isNumber(response.params.subscription)), 'Invalid id field in decoded object');
        this.checkError(response.getError());

        assert response.getResult() != null || isSubscription : "No result found in JsonRpc response";
        if (isSubscription) {
            this.checkError(response.getParams().getError());

            return response.getParams().getResult();
        }
        return response.getResult();
    }


    public String encodeJson(String method, List