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feat: Implement fallback when block announce fails. (#18)
# Description Implement rpc fallback when block announce is not triggered for some time interval. Closes LimeChain#494
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12 changes: 10 additions & 2 deletions
12
src/main/java/com/limechain/network/protocol/blockannounce/teavm/BlockAnnounceHandler.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,16 +1,24 @@ | ||
| package com.limechain.network.protocol.blockannounce.teavm; | ||
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| import com.limechain.network.protocol.blockannounce.BlockAnnounceEngine; | ||
| import com.limechain.utils.Stopwatch; | ||
| import com.limechain.utils.StringUtils; | ||
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| public class BlockAnnounceHandler implements BlockAnnounceExport { | ||
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| private final Stopwatch stopwatch; | ||
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| public BlockAnnounceHandler(Stopwatch stopwatch) { | ||
| this.stopwatch = stopwatch; | ||
| } | ||
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| public void blockAnnounce(String announce, String peerId) { | ||
| BlockAnnounceEngine.handleBlockAnnounce(StringUtils.fromHex(announce), peerId); | ||
| stopwatch.reset(); | ||
| } | ||
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| public String getHandshake() { | ||
| return BlockAnnounceEngine.getHandshake(); | ||
| } | ||
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| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| package com.limechain.teavm; | ||
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| import org.teavm.jso.JSBody; | ||
| import org.teavm.jso.JSFunctor; | ||
| import org.teavm.jso.JSObject; | ||
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| public class TeaVMScheduler { | ||
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| public static void schedule(TeaVMRunnable task, int intervalMillis) { | ||
| scheduleNative(task, intervalMillis); | ||
| } | ||
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| @JSBody(params = {"callback", "interval"}, script = "setInterval(callback, interval);") | ||
| private static native void scheduleNative(TeaVMRunnable callback, int intervalMillis); | ||
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| @JSFunctor | ||
| public interface TeaVMRunnable extends JSObject { | ||
| void run(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| package com.limechain.utils; | ||
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| import com.limechain.network.protocol.warp.dto.BlockHeader; | ||
| import com.limechain.network.protocol.warp.dto.HeaderDigest; | ||
| import com.limechain.network.protocol.warp.scale.reader.HeaderDigestReader; | ||
| import com.limechain.polkaj.Hash256; | ||
| import com.limechain.polkaj.reader.ScaleCodecReader; | ||
| import com.limechain.rpc.dto.ChainGetHeaderResult; | ||
| import lombok.AccessLevel; | ||
| import lombok.NoArgsConstructor; | ||
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| import java.math.BigInteger; | ||
| import java.util.List; | ||
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| @NoArgsConstructor(access = AccessLevel.PRIVATE) | ||
| public class RpcUtils { | ||
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| public static BlockHeader toBlockHeader(ChainGetHeaderResult result) { | ||
| BlockHeader header = new BlockHeader(); | ||
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| header.setBlockNumber(new BigInteger( | ||
| StringUtils.remove0xPrefix(result.getNumber()), 16)); | ||
| header.setParentHash(Hash256.from(result.getParentHash())); | ||
| header.setStateRoot(Hash256.from(result.getStateRoot())); | ||
| header.setExtrinsicsRoot(Hash256.from(result.getExtrinsicsRoot())); | ||
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| List<String> digestHexes = result.getDigest().getLogs(); | ||
| HeaderDigest[] digests = new HeaderDigest[digestHexes.size()]; | ||
| for (int i = 0; i < digestHexes.size(); i++) { | ||
| digests[i] = new HeaderDigestReader().read( | ||
| new ScaleCodecReader(StringUtils.hexToBytes(digestHexes.get(i)))); | ||
| } | ||
| header.setDigest(digests); | ||
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| return header; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| package com.limechain.utils; | ||
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| public class Stopwatch { | ||
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| private long startTime; | ||
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| public Stopwatch() { | ||
| reset(); | ||
| } | ||
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| public void reset() { | ||
| this.startTime = System.currentTimeMillis(); | ||
| } | ||
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| public long getElapsedTime() { | ||
| return System.currentTimeMillis() - startTime; | ||
| } | ||
| } |