Add transient tx map to DaoState to speed up getTx queries

core/src/main/java/bisq/core/dao/DaoFacade.java

@@ -624,8 +624,8 @@ public Set<TxOutput> getUnspentTxOutputs() {
         return daoStateService.getUnspentTxOutputs();
     }
 
-    public Set<Tx> getTxs() {
-        return daoStateService.getTxs();
+    public int getNumTxs() {
+        return daoStateService.getNumTxs();
     }
 
     public Optional<TxOutput> getLockupTxOutput(String txId) {

core/src/main/java/bisq/core/dao/node/explorer/ExportJsonFilesService.java

@@ -140,7 +140,7 @@ public void maybeExportToJson() {
             // Access to daoStateService is single threaded, we must not access daoStateService from the thread.
             List<JsonTxOutput> allJsonTxOutputs = new ArrayList<>();
 
-            List<JsonTx> jsonTxs = daoStateService.getTxStream()
+            List<JsonTx> jsonTxs = daoStateService.getUnorderedTxStream()
                     .map(tx -> {
                         JsonTx jsonTx = getJsonTx(tx);
                         allJsonTxOutputs.addAll(jsonTx.getOutputs());

core/src/main/java/bisq/core/dao/node/parser/BlockParser.java

@@ -22,7 +22,6 @@
 import bisq.core.dao.node.parser.exceptions.BlockHeightNotConnectingException;
 import bisq.core.dao.state.DaoStateService;
 import bisq.core.dao.state.model.blockchain.Block;
-import bisq.core.dao.state.model.blockchain.Tx;
 
 import bisq.common.app.DevEnv;
 
@@ -31,7 +30,6 @@
 import javax.inject.Inject;
 
 import java.util.LinkedList;
-import java.util.List;
 
 import lombok.extern.slf4j.Slf4j;
 
@@ -55,7 +53,6 @@ public class BlockParser {
     // Constructor
     ///////////////////////////////////////////////////////////////////////////////////////////
 
-    @SuppressWarnings("WeakerAccess")
     @Inject
     public BlockParser(TxParser txParser,
                        DaoStateService daoStateService) {
@@ -106,14 +103,13 @@ public Block parseBlock(RawBlock rawBlock) throws BlockHashNotConnectingExceptio
         // one get resolved.
         // Lately there is a patter with 24 iterations observed
         long startTs = System.currentTimeMillis();
-        List<Tx> txList = block.getTxs();
 
         rawBlock.getRawTxs().forEach(rawTx ->
                 txParser.findTx(rawTx,
                         genesisTxId,
                         genesisBlockHeight,
                         genesisTotalSupply)
-                        .ifPresent(txList::add));
+                        .ifPresent(tx -> daoStateService.onNewTxForLastBlock(block, tx)));
 
         log.info("Parsing {} transactions at block height {} took {} ms", rawBlock.getRawTxs().size(),
                 blockHeight, System.currentTimeMillis() - startTs);

core/src/main/java/bisq/core/dao/state/DaoStateService.java

@@ -35,8 +35,8 @@
 import bisq.core.dao.state.model.governance.Issuance;
 import bisq.core.dao.state.model.governance.IssuanceType;
 import bisq.core.dao.state.model.governance.ParamChange;
-import bisq.core.util.coin.BsqFormatter;
 import bisq.core.util.ParsingUtils;
+import bisq.core.util.coin.BsqFormatter;
 
 import org.bitcoinj.core.Coin;
 
@@ -115,6 +115,8 @@ public void applySnapshot(DaoState snapshot) {
 
         daoState.setChainHeight(snapshot.getChainHeight());
 
+        daoState.setTxCache(snapshot.getTxCache());
+
         daoState.getBlocks().clear();
         daoState.getBlocks().addAll(snapshot.getBlocks());
 
@@ -226,7 +228,25 @@ public void onNewBlockWithEmptyTxs(Block block) {
         }
     }
 
-    // Third we get the onParseBlockComplete called after all rawTxs of blocks have been parsed
+    // Third we add each successfully parsed BSQ tx to the last block
+    public void onNewTxForLastBlock(Block block, Tx tx) {
+        assertDaoStateChange();
+
+        getLastBlock().ifPresent(lastBlock -> {
+            if (block == lastBlock) {
+                // We need to ensure that the txs in all blocks are in sync with the txs in our txMap (cache).
+                block.addTx(tx);
+                daoState.addToTxCache(tx);
+            } else {
+                // Not clear if this case can happen but at onNewBlockWithEmptyTxs we handle such a potential edge
+                // case as well, so we need to reflect that here as well.
+                log.warn("Block for parsing does not match last block. That might happen in edge cases at reorgs. " +
+                        "Received block={}", block);
+            }
+        });
+    }
+
+    // Fourth we get the onParseBlockComplete called after all rawTxs of blocks have been parsed
     public void onParseBlockComplete(Block block) {
         if (parseBlockChainComplete)
             log.info("Parse block completed: Block height {}, {} BSQ transactions.", block.getHeight(), block.getTxs().size());
@@ -343,29 +363,24 @@ public Optional<Tx> getGenesisTx() {
     // Tx
     ///////////////////////////////////////////////////////////////////////////////////////////
 
-    public Stream<Tx> getTxStream() {
-        return getBlocks().stream()
-                .flatMap(block -> block.getTxs().stream());
+    public Stream<Tx> getUnorderedTxStream() {
+        return daoState.getTxCache().values().stream();
     }
 
-    public TreeMap<String, Tx> getTxMap() {
-        return new TreeMap<>(getTxStream().collect(Collectors.toMap(Tx::getId, tx -> tx)));
-    }
-
-    public Set<Tx> getTxs() {
-        return getTxStream().collect(Collectors.toSet());
-    }
-
-    public Optional<Tx> getTx(String txId) {
-        return getTxStream().filter(tx -> tx.getId().equals(txId)).findAny();
+    public int getNumTxs() {
+        return daoState.getTxCache().size();
     }
 
     public List<Tx> getInvalidTxs() {
-        return getTxStream().filter(tx -> tx.getTxType() == TxType.INVALID).collect(Collectors.toList());
+        return getUnorderedTxStream().filter(tx -> tx.getTxType() == TxType.INVALID).collect(Collectors.toList());
     }
 
     public List<Tx> getIrregularTxs() {
-        return getTxStream().filter(tx -> tx.getTxType() == TxType.IRREGULAR).collect(Collectors.toList());
+        return getUnorderedTxStream().filter(tx -> tx.getTxType() == TxType.IRREGULAR).collect(Collectors.toList());
+    }
+
+    public Optional<Tx> getTx(String txId) {
+        return Optional.ofNullable(daoState.getTxCache().get(txId));
     }
 
     public boolean containsTx(String txId) {
@@ -395,11 +410,11 @@ public boolean hasTxBurntFee(String txId) {
     }
 
     public long getTotalBurntFee() {
-        return getTxStream().mapToLong(Tx::getBurntFee).sum();
+        return getUnorderedTxStream().mapToLong(Tx::getBurntFee).sum();
     }
 
     public Set<Tx> getBurntFeeTxs() {
-        return getTxStream()
+        return getUnorderedTxStream()
                 .filter(tx -> tx.getBurntFee() > 0)
                 .collect(Collectors.toSet());
     }
@@ -418,17 +433,17 @@ public Optional<TxOutput> getConnectedTxOutput(TxInput txInput) {
     // TxOutput
     ///////////////////////////////////////////////////////////////////////////////////////////
 
-    public Stream<TxOutput> getTxOutputStream() {
-        return getTxStream()
+    private Stream<TxOutput> getUnorderedTxOutputStream() {
+        return getUnorderedTxStream()
                 .flatMap(tx -> tx.getTxOutputs().stream());
     }
 
     public boolean existsTxOutput(TxOutputKey key) {
-        return getTxOutputStream().anyMatch(txOutput -> txOutput.getKey().equals(key));
+        return getUnorderedTxOutputStream().anyMatch(txOutput -> txOutput.getKey().equals(key));
     }
 
     public Optional<TxOutput> getTxOutput(TxOutputKey txOutputKey) {
-        return getTxOutputStream()
+        return getUnorderedTxOutputStream()
                 .filter(txOutput -> txOutput.getKey().equals(txOutputKey))
                 .findAny();
     }
@@ -513,8 +528,8 @@ public boolean isTxOutputSpendable(TxOutputKey key) {
     // TxOutputType
     ///////////////////////////////////////////////////////////////////////////////////////////
 
-    public Set<TxOutput> getTxOutputsByTxOutputType(TxOutputType txOutputType) {
-        return getTxOutputStream()
+    private Set<TxOutput> getTxOutputsByTxOutputType(TxOutputType txOutputType) {
+        return getUnorderedTxOutputStream()
                 .filter(txOutput -> txOutput.getTxOutputType() == txOutputType)
                 .collect(Collectors.toSet());
     }
@@ -823,12 +838,12 @@ public long getTotalAmountOfConfiscatedTxOutputs() {
     }
 
     public long getTotalAmountOfInvalidatedBsq() {
-        return getTxStream().mapToLong(Tx::getInvalidatedBsq).sum();
+        return getUnorderedTxStream().mapToLong(Tx::getInvalidatedBsq).sum();
     }
 
     // Contains burnt fee and invalidated bsq due invalid txs
     public long getTotalAmountOfBurntBsq() {
-        return getTxStream().mapToLong(Tx::getBurntBsq).sum();
+        return getUnorderedTxStream().mapToLong(Tx::getBurntBsq).sum();
     }
 
     // Confiscate bond

core/src/main/java/bisq/core/dao/state/model/DaoState.java

@@ -19,6 +19,7 @@
 
 import bisq.core.dao.state.model.blockchain.Block;
 import bisq.core.dao.state.model.blockchain.SpentInfo;
+import bisq.core.dao.state.model.blockchain.Tx;
 import bisq.core.dao.state.model.blockchain.TxOutput;
 import bisq.core.dao.state.model.blockchain.TxOutputKey;
 import bisq.core.dao.state.model.governance.Cycle;
@@ -28,22 +29,25 @@
 import bisq.core.dao.state.model.governance.ParamChange;
 
 import bisq.common.proto.persistable.PersistablePayload;
+import bisq.common.util.JsonExclude;
 
 import com.google.protobuf.Message;
 
 import javax.inject.Inject;
 
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
+import java.util.function.Function;
 import java.util.stream.Collectors;
 
 import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
 
-
 /**
  * Root class for mutable state of the DAO.
  * Holds both blockchain data as well as data derived from the governance process (voting).
@@ -98,6 +102,10 @@ public static DaoState getClone(DaoState daoState) {
     @Getter
     private final List<DecryptedBallotsWithMerits> decryptedBallotsWithMeritsList;
 
+    // Transient data used only as an index - must be kept in sync with the block list
+    @JsonExclude
+    private transient final Map<String, Tx> txCache; // key is txId
+
 
     ///////////////////////////////////////////////////////////////////////////////////////////
     // Constructor
@@ -145,6 +153,10 @@ private DaoState(int chainHeight,
         this.paramChangeList = paramChangeList;
         this.evaluatedProposalList = evaluatedProposalList;
         this.decryptedBallotsWithMeritsList = decryptedBallotsWithMeritsList;
+
+        txCache = blocks.stream()
+                .flatMap(block -> block.getTxs().stream())
+                .collect(Collectors.toMap(Tx::getId, Function.identity(), (x, y) -> x, HashMap::new));
     }
 
     @Override
@@ -224,6 +236,21 @@ public byte[] getSerializedStateForHashChain() {
         return getBsqStateBuilderExcludingBlocks().addBlocks(getBlocks().getLast().toProtoMessage()).build().toByteArray();
     }
 
+    public void addToTxCache(Tx tx) {
+        // We shouldn't get duplicate txIds, but use putIfAbsent instead of put for consistency with the map merge
+        // function used in the constructor to initialise txCache (and to exactly match the pre-caching behaviour).
+        txCache.putIfAbsent(tx.getId(), tx);
+    }
+
+    public void setTxCache(Map<String, Tx> txCache) {
+        this.txCache.clear();
+        this.txCache.putAll(txCache);
+    }
+
+    public Map<String, Tx> getTxCache() {
+        return Collections.unmodifiableMap(txCache);
+    }
+
     @Override
     public String toString() {
         return "DaoState{" +
@@ -237,6 +264,7 @@ public String toString() {
                 ",\n     paramChangeList=" + paramChangeList +
                 ",\n     evaluatedProposalList=" + evaluatedProposalList +
                 ",\n     decryptedBallotsWithMeritsList=" + decryptedBallotsWithMeritsList +
+                ",\n     txCache=" + txCache +
                 "\n}";
     }
 }

core/src/main/java/bisq/core/dao/state/model/blockchain/Block.java

@@ -24,11 +24,11 @@
 import com.google.common.collect.ImmutableList;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
 
 import lombok.EqualsAndHashCode;
-import lombok.Value;
 
 /**
  * The Block which gets persisted in the DaoState. During parsing transactions can be
@@ -44,8 +44,8 @@
  *
  */
 @EqualsAndHashCode(callSuper = true)
-@Value
 public final class Block extends BaseBlock implements PersistablePayload, ImmutableDaoStateModel {
+    // We do not expose txs with a Lombok getter. We cannot make it immutable as we add transactions during parsing.
     private final List<Tx> txs;
 
     public Block(int height, long time, String hash, String previousBlockHash) {
@@ -93,6 +93,17 @@ public static Block fromProto(protobuf.BaseBlock proto) {
                 txs);
     }
 
+    public void addTx(Tx tx) {
+        txs.add(tx);
+    }
+
+    // We want to guarantee that no client can modify the list. We use unmodifiableList and not ImmutableList as
+    // we want that clients reflect any change to the source list. Also ImmutableList is more expensive as it
+    // creates a copy.
+    public List<Tx> getTxs() {
+        return Collections.unmodifiableList(txs);
+    }
+
     @Override
     public String toString() {
         return "Block{" +

desktop/src/main/java/bisq/desktop/main/dao/economy/transactions/BSQTransactionsView.java

@@ -143,7 +143,7 @@ public void onParseBlockCompleteAfterBatchProcessing(Block block) {
     ///////////////////////////////////////////////////////////////////////////////////////////
 
     private void updateWithBsqBlockChainData() {
-        allTxTextField.setText(String.valueOf(daoFacade.getTxs().size()));
+        allTxTextField.setText(String.valueOf(daoFacade.getNumTxs()));
         utxoTextField.setText(String.valueOf(daoFacade.getUnspentTxOutputs().size()));
         compensationIssuanceTxTextField.setText(String.valueOf(daoFacade.getNumIssuanceTransactions(IssuanceType.COMPENSATION)));
         reimbursementIssuanceTxTextField.setText(String.valueOf(daoFacade.getNumIssuanceTransactions(IssuanceType.REIMBURSEMENT)));