org.bitcoinj.evolution.AssetLockPayload Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of dashj-core Show documentation
Dash Java Library
There is a newer version: 21.0.0
/*
 * Copyright 2023 Dash Core Group
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.bitcoinj.evolution;


import com.google.common.collect.Lists;
import org.bitcoinj.core.NetworkParameters;
import org.bitcoinj.core.ProtocolException;
import org.bitcoinj.core.Transaction;
import org.bitcoinj.core.TransactionOutput;
import org.bitcoinj.core.VarInt;
import org.json.JSONObject;

import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

import static org.bitcoinj.core.Transaction.Type.TRANSACTION_ASSET_LOCK;

public class AssetLockPayload extends SpecialTxPayload {

    public static final int CURRENT_VERSION = 1;
    public static final Transaction.Type SPECIALTX_TYPE = TRANSACTION_ASSET_LOCK;
    private ArrayList creditOutputs;

    public AssetLockPayload(NetworkParameters params, Transaction tx) {
        super(params, tx);
    }

    public AssetLockPayload(NetworkParameters params, List creditOutputs) {
        this(params, CURRENT_VERSION, creditOutputs);
    }

    public AssetLockPayload(NetworkParameters params, int version, List creditOutputs) {
        super(params, version);
        this.creditOutputs = new ArrayList<>(creditOutputs);
        length = new VarInt(creditOutputs.size()).getSizeInBytes();
        creditOutputs.forEach(output -> length += output.getMessageSize());
    }
    @Override
    protected void parse() throws ProtocolException {
        version = readBytes(1)[0];
        int size = (int) readVarInt();
        creditOutputs = Lists.newArrayList();
        for (int i = 0; i < size; ++i) {
            TransactionOutput output = new TransactionOutput(params, null, payload, cursor);
            cursor += output.getMessageSize();
            creditOutputs.add(output);
        }
        length = cursor - offset;
    }

    @Override
    protected void bitcoinSerializeToStream(OutputStream stream) throws IOException {
        stream.write(version);
        stream.write(new VarInt(creditOutputs.size()).encode());
        for (int i = 0; i < creditOutputs.size(); ++i) {
            creditOutputs.get(i).bitcoinSerialize(stream);
        }
    }

    public int getCurrentVersion() {
        return CURRENT_VERSION;
    }

    public String toString() {
        return String.format("AssetLockPayload(creditOutputs: %d)",
                creditOutputs.size());
    }

    @Override
    public Transaction.Type getType() {
        return TRANSACTION_ASSET_LOCK;
    }

    @Override
    public String getName() {
        return "AssetLock";
    }

    public List getCreditOutputs() {
        return creditOutputs;
    }

    @Override
    public JSONObject toJson() {
        JSONObject result = super.toJson();
        creditOutputs.forEach(output -> result.append("creditOutputs", output.toString()));
        return result;
    }
}