/*
* Copyright (c) [2016] [ <ether.camp> ]
* This file is part of the ethereumJ library.
*
* The ethereumJ library 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 ethereumJ library 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 ethereumJ library. If not, see <http://www.gnu.org/licenses/>.
*/
package org.ethereum.validator;
import org.apache.commons.lang3.tuple.Pair;
import org.ethereum.config.BlockchainNetConfig;
import org.ethereum.config.SystemProperties;
import org.ethereum.core.BlockHeader;
import java.util.List;
/**
* Checks if the block is from the right fork
*/
public class BlockHashRule extends BlockHeaderRule {
private final BlockchainNetConfig blockchainConfig;
public BlockHashRule(SystemProperties config) {
blockchainConfig = config.getBlockchainConfig();
}
@Override
public ValidationResult validate(BlockHeader header) {
List<Pair<Long, BlockHeaderValidator>> validators = blockchainConfig.getConfigForBlock(header.getNumber()).headerValidators();
for (Pair<Long, BlockHeaderValidator> pair : validators) {
if (header.getNumber() == pair.getLeft()) {
ValidationResult result = pair.getRight().validate(header);
if (!result.success) {
return fault("Block " + header.getNumber() + " header constraint violated. " + result.error);
}
}
}
return Success;
}
}