/*
* 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.net.eth.handler;
import com.google.common.util.concurrent.ListenableFuture;
import org.ethereum.core.*;
import org.ethereum.net.eth.EthVersion;
import org.ethereum.sync.SyncStatistics;
import java.math.BigInteger;
import java.util.List;
import static org.ethereum.net.eth.EthVersion.*;
/**
* It's quite annoying to always check {@code if (eth != null)} before accessing it. <br>
*
* This adapter helps to avoid such checks. It provides meaningful answers to Eth client
* assuming that Eth hasn't been initialized yet. <br>
*
* Check {@link org.ethereum.net.server.Channel} for example.
*
* @author Mikhail Kalinin
* @since 20.08.2015
*/
public class EthAdapter implements Eth {
private final SyncStatistics syncStats = new SyncStatistics();
@Override
public boolean hasStatusPassed() {
return false;
}
@Override
public boolean hasStatusSucceeded() {
return false;
}
@Override
public void onShutdown() {
}
@Override
public String getSyncStats() {
return "";
}
@Override
public boolean isHashRetrievingDone() {
return false;
}
@Override
public boolean isHashRetrieving() {
return false;
}
@Override
public boolean isIdle() {
return true;
}
@Override
public SyncStatistics getStats() {
return syncStats;
}
@Override
public void disableTransactions() {
}
@Override
public void enableTransactions() {
}
@Override
public void sendTransaction(List<Transaction> tx) {
}
@Override
public ListenableFuture<List<BlockHeader>> sendGetBlockHeaders(long blockNumber, int maxBlocksAsk, boolean reverse) {
return null;
}
@Override
public ListenableFuture<List<BlockHeader>> sendGetBlockHeaders(byte[] blockHash, int maxBlocksAsk, int skip, boolean reverse) {
return null;
}
@Override
public ListenableFuture<List<Block>> sendGetBlockBodies(List<BlockHeaderWrapper> headers) {
return null;
}
@Override
public void sendNewBlock(Block newBlock) {
}
@Override
public void sendNewBlockHashes(Block block) {
}
@Override
public EthVersion getVersion() {
return fromCode(UPPER);
}
@Override
public void onSyncDone(boolean done) {
}
@Override
public void sendStatus() {
}
@Override
public void dropConnection() {
}
@Override
public void fetchBodies(List<BlockHeaderWrapper> headers) {
}
@Override
public BlockIdentifier getBestKnownBlock() {
return null;
}
@Override
public BigInteger getTotalDifficulty() {
return BigInteger.ZERO;
}
}