20: Add actual refreshing logic to loop

conf/alarms.conf.example

@@ -1,8 +1,56 @@
+# General configurations
+#####################################################
+{{JUPITER_PERPS_WALLET}}  8abcYourWalletAddressHere
+
+
+# Constant Name             Value
+####################################
+
+{{SOL_LONG_ENTRY_PRICE}}    73.67
+{{SOL_LONG_LIQ_PRICE}}      70.28
+{{SOL_SHORT_ENTRY_PRICE}}   70.47
+{{SOL_SHORT_LIQ_PRICE}}     75.01
+
+{{ETH_LONG_ENTRY_PRICE}}    1589.63
+{{ETH_LONG_LIQ_PRICE}}      1461.11
+{{ETH_SHORT_ENTRY_PRICE}}   1545.29
+{{ETH_SHORT_LIQ_PRICE}}     1698.42
+
+{{BTC_LONG_ENTRY_PRICE}}    61236.03
+{{BTC_LONG_LIQ_PRICE}}      40984.70
+{{BTC_SHORT_ENTRY_PRICE}}   59451.94
+{{BTC_SHORT_LIQ_PRICE}}     65084.53
+
+
 # Id   Asset   Direction                          Target   Trigger           Severity   Note
-######################################################################################################################
+###############################################################################################################################
-1      SOL     ABOVE       97.03-1.25%   ONETIME   CRITICAL   "CRITICAL: Risiko for Perps Solana short LIKVIDERING!"
+
-2      SOL     BELOW       48.72+1.25%   ONETIME   CRITICAL   "CRITICAL: Risiko for Perps Solana long LIKVIDERING!"
+# SOL SHORT
-3      BTC     ABOVE       85032.87-1%   ONETIME   CRITICAL   "CRITICAL: Risiko for Perps Bitcoin short LIKVIDERING!"
+1      SOL     ABOVE       {{SOL_SHORT_LIQ_PRICE}}-1.25%   ONETIME           CRITICAL   "🚨 LIKVIDERINGS-risiko SOL Short!"
-4      BTC     BELOW       42779.40+1%   ONETIME   CRITICAL   "CRITICAL: Risiko for Perps Bitcoin long LIKVIDERING!"
+2      SOL     ABOVE        {{SOL_SHORT_ENTRY_PRICE}}+3%   PERSISTENT:900   INFO       "🌱 Short SOL now"
-5      ETH     ABOVE        2296.13-1%   ONETIME   CRITICAL   "CRITICAL: Risiko for Perps Ethereum short LIKVIDERING!"
+3      SOL     BELOW        {{SOL_SHORT_ENTRY_PRICE}}-3%   PERSISTENT:900   INFO       "💵 Close SOL Short"
-6      ETH     BELOW        1155.19+1%   ONETIME   CRITICAL   "CRITICAL: Risiko for Perps Ethereum long LIKVIDERING!"
+
+# SOL LONG
+4      SOL     BELOW        {{SOL_LONG_LIQ_PRICE}}+1.25%   ONETIME           CRITICAL   "🚨 LIKVIDERINGS-risiko SOL Long!"
+5      SOL     BELOW         {{SOL_LONG_ENTRY_PRICE}}-3%   PERSISTENT:900   INFO       "🌱 Long SOL now"
+6      SOL     ABOVE         {{SOL_LONG_ENTRY_PRICE}}+3%   PERSISTENT:900   INFO       "💵 Close SOL Long"
+
+# ETH SHORT
+7      ETH     ABOVE          {{ETH_SHORT_LIQ_PRICE}}-1%   ONETIME           CRITICAL   "🚨 LIKVIDERINGS-risiko ETH Short!"
+8      ETH     ABOVE        {{ETH_SHORT_ENTRY_PRICE}}+3%   PERSISTENT:900   INFO       "🌱 Short ETH now"
+9      ETH     BELOW        {{ETH_SHORT_ENTRY_PRICE}}-3%   PERSISTENT:900   INFO       "💵 Close ETH Short"
+
+# ETH LONG
+10     ETH     BELOW           {{ETH_LONG_LIQ_PRICE}}+1%   ONETIME           CRITICAL   "🚨 LIKVIDERINGS-risiko ETH Long!"
+11     ETH     BELOW         {{ETH_LONG_ENTRY_PRICE}}-3%   PERSISTENT:900   INFO       "🌱 Long ETH now"
+12     ETH     ABOVE         {{ETH_LONG_ENTRY_PRICE}}+3%   PERSISTENT:900   INFO       "💵 Close ETH Long"
+
+# BTC SHORT
+13     BTC     ABOVE          {{BTC_SHORT_LIQ_PRICE}}-1%   ONETIME           CRITICAL   "🚨 LIKVIDERINGS-risiko BTC Short!"
+14     BTC     ABOVE        {{BTC_SHORT_ENTRY_PRICE}}+3%   PERSISTENT:900   INFO       "🌱 Short BTC now"
+15     BTC     BELOW        {{BTC_SHORT_ENTRY_PRICE}}-3%   PERSISTENT:900   INFO       "💵 Close BTC Short"
+
+# BTC LONG
+16     BTC     BELOW           {{BTC_LONG_LIQ_PRICE}}+1%   ONETIME           CRITICAL   "🚨 LIKVIDERINGS-risiko BTC Long!"
+17     BTC     BELOW         {{BTC_LONG_ENTRY_PRICE}}-3%   PERSISTENT:900   INFO       "🌱 Long BTC now"
+18     BTC     ABOVE         {{BTC_LONG_ENTRY_PRICE}}+3%   PERSISTENT:900   INFO       "💵 Close BTC Long"

publishGitHub.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SOURCE="$HOME/projects/com_r35157_nenjim-hubd-impl_ref"
+TARGET="$HOME/projects/com_r35157_nenjim-hubd-impl_ref_github_snapshot"
+
+rsync -a --delete \
+  --exclude '.git' \
+  --exclude 'conf/*.conf' \
+  --exclude 'conf/*.xml' \
+  "$SOURCE/" \
+  "$TARGET/"
+
+cd "$TARGET"
+git add -A
+
+if git diff --cached --quiet; then
+    echo "No snapshot changes to publish."
+    exit 0
+fi
+
+git commit -m "Mirror snapshot"
+git push

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/AlarmAction.tjava

@@ -2,5 +2,5 @@ package com.r35157.jupiterperpsalarm.impl.ref;
 
 @FunctionalInterface
 public interface AlarmAction {
-    void trigger(OraclePrice price, PriceAlarmDefinition alarm);
+    void trigger(OraclePrice price, ResolvedPriceAlarm alarm);
 }

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/AlarmConfiguration.tjava

@@ -0,0 +1,19 @@
+package com.r35157.jupiterperpsalarm.impl.ref;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.ConcurrentHashMap;
+
+public record AlarmConfiguration(
+        List<PriceAlarmDefinition> definitions,
+        Map<String, String> variables
+) {
+    public AlarmConfiguration {
+        Objects.requireNonNull(definitions, "definitions");
+        Objects.requireNonNull(variables, "variables");
+
+        definitions = List.copyOf(definitions);
+        variables = new ConcurrentHashMap<>(variables);
+    }
+}

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/AlarmConfigurationParser.tjava

@@ -3,14 +3,13 @@ package com.r35157.jupiterperpsalarm.impl.ref;
 import com.r35157.jupiterperpsalarm.AlarmSeverity;
 
 import java.io.IOException;
-import java.math.BigDecimal;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.*;
 
 public final class AlarmConfigurationParser {
 
-    public static List<PriceAlarmDefinition> parse(Path path) throws IOException {
+    public static AlarmConfiguration parse(Path path) throws IOException {
         List<String> lines = Files.readAllLines(path);
         List<PriceAlarmDefinition> alarms = new ArrayList<>();
         Map<String, String> constants = new LinkedHashMap<>();
@@ -27,8 +26,7 @@ public final class AlarmConfigurationParser {
                 if(isConstantDefinition(trimmed)) {
                     parseConstantDefinition(constants, line);
                 } else {
-                    String resolvedLine = replaceConstants(line, constants);
+                    alarms.add(parseLine(line));
-                    alarms.add(parseLine(resolvedLine));
                 }
             } catch (RuntimeException exception) {
                 throw new IllegalArgumentException(
@@ -42,7 +40,7 @@ public final class AlarmConfigurationParser {
             throw new IllegalArgumentException("No alarms found in " + path);
         }
 
-        return List.copyOf(alarms);
+        return new AlarmConfiguration(alarms, constants);
     }
 
     static PriceAlarmDefinition parseLine(String line) {
@@ -58,7 +56,7 @@ public final class AlarmConfigurationParser {
                 cursor.nextToken("direction").toUpperCase(Locale.ROOT)
         );
 
-        BigDecimal target = parseTarget(cursor.nextToken("target"));
+        String targetExpression = cursor.nextToken("target");
 
         TriggerConfiguration triggerConfiguration = parseTrigger(
                 cursor.nextToken("trigger")
@@ -81,7 +79,7 @@ public final class AlarmConfigurationParser {
                 id,
                 asset,
                 direction,
-                target,
+                targetExpression,
                 triggerConfiguration.trigger(),
                 triggerConfiguration.gracePeriod(),
                 severity,
@@ -89,28 +87,6 @@ public final class AlarmConfigurationParser {
         );
     }
 
-    private static BigDecimal parseTargetPercentage(
-            String targetStr,
-            int operatorIndex,
-            boolean add
-    ) {
-        BigDecimal base = new BigDecimal(targetStr.substring(0, operatorIndex));
-        String percentStr = targetStr.substring(operatorIndex + 1, targetStr.length() - 1);
-        BigDecimal percent = new BigDecimal(percentStr);
-
-        BigDecimal delta = base
-                .multiply(percent)
-                .divide(BigDecimal.valueOf(100));
-
-        BigDecimal target = add ? base.add(delta) : base.subtract(delta);
-
-        validateTarget(base, targetStr);
-        validateTarget(percent, targetStr);
-        validateTarget(target, targetStr);
-
-        return target;
-    }
-
     private static TriggerConfiguration parseTrigger(String triggerText) {
         String normalized = triggerText.toUpperCase(Locale.ROOT);
 
@@ -155,35 +131,6 @@ public final class AlarmConfigurationParser {
         throw new IllegalArgumentException("Unknown trigger: " + triggerText);
     }
 
-    private static void validateTarget(BigDecimal target, String originalTargetStr) {
-        if (target.compareTo(BigDecimal.ZERO) < 0) {
-            throw new IllegalArgumentException(
-                    "Target must be zero or positive: " + originalTargetStr
-            );
-        }
-    }
-
-    private static BigDecimal parseTarget(String targetStr) {
-        String trimmedTargetStr = targetStr.trim();
-
-        if (trimmedTargetStr.endsWith("%")) {
-            int plusIndex = trimmedTargetStr.indexOf('+');
-            int minusIndex = trimmedTargetStr.indexOf('-', 1);
-
-            if (plusIndex >= 0) {
-                return parseTargetPercentage(trimmedTargetStr, plusIndex, true);
-            }
-
-            if (minusIndex >= 0) {
-                return parseTargetPercentage(trimmedTargetStr, minusIndex, false);
-            }
-        }
-
-        BigDecimal target = new BigDecimal(trimmedTargetStr);
-        validateTarget(target, targetStr);
-        return target;
-    }
-
     private static final class Cursor {
         private Cursor(String line) {
             this.line = line;
@@ -290,9 +237,21 @@ public final class AlarmConfigurationParser {
 
         validateConstantName(name);
 
-        if (constants.putIfAbsent(name, value) != null) {
+        constants.put(parseVariableName(name), value);
-            throw new IllegalArgumentException("Duplicate constant: " + name);
     }
+
+    private static String parseVariableName(String variableName) {
+        if (!variableName.startsWith("{{") || !variableName.endsWith("}}")) {
+            throw new IllegalArgumentException("Invalid variable name: " + variableName);
+        }
+
+        String parsedVariableName = variableName.substring(2, variableName.length() - 2);
+
+        if (parsedVariableName.isBlank()) {
+            throw new IllegalArgumentException("Variable name cannot be blank: " + variableName);
+        }
+
+        return parsedVariableName;
     }
 
     private static String replaceConstants(

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/AlarmTargetParser.tjava

@@ -0,0 +1,60 @@
+package com.r35157.jupiterperpsalarm.impl.ref;
+
+import java.math.BigDecimal;
+
+public final class AlarmTargetParser {
+
+    private AlarmTargetParser() {
+    }
+
+    public static BigDecimal parse(String targetStr) {
+        String trimmedTargetStr = targetStr.trim();
+
+        if (trimmedTargetStr.endsWith("%")) {
+            int plusIndex = trimmedTargetStr.indexOf('+');
+            int minusIndex = trimmedTargetStr.indexOf('-', 1);
+
+            if (plusIndex >= 0) {
+                return parseTargetPercentage(trimmedTargetStr, plusIndex, true);
+            }
+
+            if (minusIndex >= 0) {
+                return parseTargetPercentage(trimmedTargetStr, minusIndex, false);
+            }
+        }
+
+        BigDecimal target = new BigDecimal(trimmedTargetStr);
+        validateTarget(target, targetStr);
+        return target;
+    }
+
+    private static BigDecimal parseTargetPercentage(
+            String targetStr,
+            int operatorIndex,
+            boolean add
+    ) {
+        BigDecimal base = new BigDecimal(targetStr.substring(0, operatorIndex));
+        String percentStr = targetStr.substring(operatorIndex + 1, targetStr.length() - 1);
+        BigDecimal percent = new BigDecimal(percentStr);
+
+        BigDecimal delta = base
+                .multiply(percent)
+                .divide(BigDecimal.valueOf(100));
+
+        BigDecimal target = add ? base.add(delta) : base.subtract(delta);
+
+        validateTarget(base, targetStr);
+        validateTarget(percent, targetStr);
+        validateTarget(target, targetStr);
+
+        return target;
+    }
+
+    private static void validateTarget(BigDecimal target, String originalTargetStr) {
+        if (target.compareTo(BigDecimal.ZERO) < 0) {
+            throw new IllegalArgumentException(
+                    "Target must be zero or positive: " + originalTargetStr
+            );
+        }
+    }
+}

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/AlarmVariableResolver.tjava

@@ -0,0 +1,30 @@
+package com.r35157.jupiterperpsalarm.impl.ref;
+
+import java.util.Map;
+import java.util.Objects;
+
+public final class AlarmVariableResolver {
+
+    public AlarmVariableResolver(Map<String, String> variables) {
+        this.variables = Objects.requireNonNull(variables, "variables");
+    }
+
+    public String resolve(String text) {
+        Objects.requireNonNull(text, "text");
+
+        String resolvedText = text;
+
+        for (Map.Entry<String, String> entry : variables.entrySet()) {
+            String placeholder = "{{" + entry.getKey() + "}}";
+            resolvedText = resolvedText.replace(placeholder, entry.getValue());
+        }
+
+        if (resolvedText.contains("{{") || resolvedText.contains("}}")) {
+            throw new IllegalArgumentException("Unresolved variable in text: " + text);
+        }
+
+        return resolvedText;
+    }
+
+    private final Map<String, String> variables;
+}

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/AssetPriceAlarmMonitor.tjava

@@ -12,6 +12,7 @@ public final class AssetPriceAlarmMonitor {
     public AssetPriceAlarmMonitor(
             JupiterPerpsAsset asset,
             List<PriceAlarmDefinition> definitions,
+            AlarmVariableResolver variableResolver,
             AlarmAction action
     ) {
         this.asset = asset;
@@ -22,7 +23,7 @@ public final class AssetPriceAlarmMonitor {
                                 "Alarm asset " + definition.asset() + " does not match monitor " + asset
                         );
                     }
-                    return new PriceAlarm(definition, action);
+                    return new PriceAlarm(definition, variableResolver, action);
                 })
                 .toList();
 

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/CompositeAlarmAction.tjava

@@ -9,7 +9,7 @@ public final class CompositeAlarmAction implements AlarmAction {
     }
 
     @Override
-    public void trigger(OraclePrice price, PriceAlarmDefinition alarm) {
+    public void trigger(OraclePrice price, ResolvedPriceAlarm alarm) {
         for (AlarmAction action : actions) {
             try {
                 action.trigger(price, alarm);

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/ConsoleAlarmAction.tjava

@@ -2,7 +2,7 @@ package com.r35157.jupiterperpsalarm.impl.ref;
 
 public final class ConsoleAlarmAction implements AlarmAction {
     @Override
-    public void trigger(OraclePrice price, PriceAlarmDefinition alarm) {
+    public void trigger(OraclePrice price, ResolvedPriceAlarm alarm) {
         System.err.println();
         System.err.println("============================================================");
         System.err.printf(

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/JupiterPerpsAlarmImpl.tjava

@@ -1,5 +1,10 @@
 package com.r35157.jupiterperpsalarm.impl.ref;
 
+import com.r35157.libs.jupiter.perps.JupiterPerpsService;
+import com.r35157.libs.jupiter.perps.impl.anchoridl.AnchorIdlJupiterPerpsServiceImpl;
+import com.r35157.libs.solana.SolanaBlockChain;
+import com.r35157.libs.solana.impl.ref.SolanaBlockChainImpl;
+
 import java.net.URI;
 import java.nio.file.Path;
 import java.util.ArrayList;
@@ -13,6 +18,7 @@ public final class JupiterPerpsAlarmImpl {
 
     public static void main(String[] args) throws Exception {
         Config config;
+
         try {
             config = Config.parse(args, System.getenv());
         } catch (IllegalArgumentException exception) {
@@ -22,13 +28,34 @@ public final class JupiterPerpsAlarmImpl {
         }
 
         List<PriceAlarmDefinition> definitions;
+        AlarmConfiguration alarmConfiguration;
+
         try {
-            definitions = AlarmConfigurationParser.parse(config.alarmConfiguration());
+            alarmConfiguration = AlarmConfigurationParser.parse(config.alarmConfiguration());
+            definitions = alarmConfiguration.definitions();
         } catch (Exception exception) {
             String errMsg = "Could not load alarm configuration: " + exception.getMessage() + "!";
             throw new IllegalStateException(errMsg, exception);
         }
 
+        AlarmVariableResolver variableResolver = new AlarmVariableResolver(
+                alarmConfiguration.variables()
+        );
+
+        SolanaBlockChain solanaBlockChain = new SolanaBlockChainImpl();
+        JupiterPerpsService jupiterPerpsService = new AnchorIdlJupiterPerpsServiceImpl(solanaBlockChain);
+        JupiterPerpsEntryPriceVariableRefresher entryPriceVariableRefresher =
+                new JupiterPerpsEntryPriceVariableRefresher(alarmConfiguration.variables(), jupiterPerpsService);
+        entryPriceVariableRefresher.refresh();
+
+        JupiterPerpsEntryPriceVariableRefreshWatcher entryPriceVariableRefreshWatcher =
+                new JupiterPerpsEntryPriceVariableRefreshWatcher(
+                        config.alarmConfiguration().getParent(),
+                        entryPriceVariableRefresher
+                );
+
+        entryPriceVariableRefreshWatcher.start();
+
         List<AlarmAction> actions = new ArrayList<>();
         actions.add(new ConsoleAlarmAction());
 
@@ -52,9 +79,10 @@ public final class JupiterPerpsAlarmImpl {
         Map<JupiterPerpsAsset, AssetPriceAlarmMonitor> monitors = new EnumMap<>(
                 JupiterPerpsAsset.class
         );
+
         definitionsByAsset.forEach((asset, assetDefinitions) -> monitors.put(
                 asset,
-                new AssetPriceAlarmMonitor(asset, assetDefinitions, action)
+                new AssetPriceAlarmMonitor(asset, assetDefinitions, variableResolver, action)
         ));
 
         List<OracleWebSocketClient> clients = new ArrayList<>();
@@ -85,7 +113,7 @@ public final class JupiterPerpsAlarmImpl {
             assetDefinitions.forEach(definition -> System.out.printf(
                     "    %s %s USD, %s, severity=%s%n",
                     definition.direction(),
-                    definition.target().toPlainString(),
+                    definition.targetExpression(),
                     definition.trigger(),
                     definition.severity()
             ));

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/JupiterPerpsEntryPriceVariableRefreshWatcher.tjava

@@ -0,0 +1,92 @@
+package com.r35157.jupiterperpsalarm.impl.ref;
+
+import java.nio.file.*;
+import java.util.Objects;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.FileSystems;
+import java.nio.file.StandardWatchEventKinds;
+import java.nio.file.WatchEvent;
+import java.nio.file.WatchKey;
+import java.nio.file.WatchService;
+
+public final class JupiterPerpsEntryPriceVariableRefreshWatcher {
+
+    public JupiterPerpsEntryPriceVariableRefreshWatcher(
+            Path confDirectory,
+            JupiterPerpsEntryPriceVariableRefresher refresher
+    ) {
+        this.confDirectory = Objects.requireNonNull(confDirectory, "confDirectory");
+        this.refresher = Objects.requireNonNull(refresher, "refresher");
+    }
+
+    public void start() {
+        Thread thread = new Thread(
+                this::run,
+                "jupiter-perps-entry-price-variable-refresh-watcher"
+        );
+
+        thread.setDaemon(true);
+        thread.start();
+    }
+
+    private void run() {
+        try (WatchService watchService = FileSystems.getDefault().newWatchService()) {
+
+            confDirectory.register(
+                    watchService,
+                    StandardWatchEventKinds.ENTRY_CREATE
+            );
+
+            System.out.println(
+                    "Jupiter Perps entry price variable refresh watcher started for directory: "
+                            + confDirectory
+            );
+            while (true) {
+                WatchKey key = watchService.take();
+
+                for (WatchEvent<?> event : key.pollEvents()) {
+                    Path path = (Path) event.context();
+
+                    if (!REFRESH_TRIGGER_FILE_NAME.equals(path.getFileName().toString())) {
+                        continue;
+                    }
+
+                    Path triggerFile = confDirectory.resolve(path);
+
+                    System.out.println("Refresh trigger file detected: " + triggerFile);
+
+                    try {
+                        refresher.refresh();
+                    } finally {
+                        Files.deleteIfExists(triggerFile);
+                    }
+                }
+
+                if (!key.reset()) {
+                    System.err.println(
+                            "Jupiter Perps entry price variable refresh watcher stopped: watch key is no longer valid"
+                    );
+                    return;
+                }
+            }
+        } catch (IOException exception) {
+            System.err.println(
+                    "Could not start Jupiter Perps entry price variable refresh watcher: "
+                            + exception.getMessage()
+            );
+        } catch (InterruptedException exception) {
+            Thread.currentThread().interrupt();
+
+            System.err.println(
+                    "Jupiter Perps entry price variable refresh watcher interrupted"
+            );
+        }
+    }
+
+    private static final String REFRESH_TRIGGER_FILE_NAME =
+            "jupiter-perps-alarm-var.refresh";
+
+    private final Path confDirectory;
+    private final JupiterPerpsEntryPriceVariableRefresher refresher;
+}

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/JupiterPerpsEntryPriceVariableRefresher.tjava

@@ -0,0 +1,86 @@
+package com.r35157.jupiterperpsalarm.impl.ref;
+
+import com.r35157.libs.jupiter.perps.JupiterPerpsPosition;
+import com.r35157.libs.jupiter.perps.JupiterPerpsService;
+
+import java.io.IOException;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+
+public final class JupiterPerpsEntryPriceVariableRefresher {
+
+    public JupiterPerpsEntryPriceVariableRefresher(
+            Map<String, String> variables,
+            JupiterPerpsService jupiterPerpsService
+    ) {
+        this.variables = Objects.requireNonNull(variables, "variables");
+        this.jupiterPerpsService = Objects.requireNonNull(jupiterPerpsService, "jupiterPerpsService");
+    }
+
+    public void refresh() {
+        ΩSolanaWalletIdΩ  wallet = variables.get("JUPITER_PERPS_WALLET");
+
+        if (wallet == null || wallet.isBlank()) {
+            System.err.println("Cannot refresh Jupiter Perps entry price variables: JUPITER_PERPS_WALLET is not configured");
+            return;
+        }
+
+        try {
+            Set<JupiterPerpsPosition> positions = jupiterPerpsService.getOpenPositions(wallet);
+
+            System.out.println(
+                    "Fetched " + positions.size()
+                            + " open Jupiter Perps positions for wallet: " + wallet
+            );
+
+            removeEntryPriceVariables();
+
+            for (JupiterPerpsPosition position : positions) {
+                String variableName = createEntryPriceVariableName(position);
+
+                System.out.println(
+                        "Jupiter Perps position maps to variable "
+                                + variableName
+                                + " = "
+                                + position.entryPrice()
+                );
+                variables.put(variableName, position.entryPrice().toPlainString());
+            }
+        } catch (IOException | InterruptedException exception) {
+            if (exception instanceof InterruptedException) {
+                Thread.currentThread().interrupt();
+            }
+
+            System.err.println(
+                    "Could not refresh Jupiter Perps entry price variables: "
+                            + exception.getMessage()
+            );
+        }
+    }
+
+    private void removeEntryPriceVariables() {
+        variables.remove("SOL_LONG_ENTRY_PRICE");
+        variables.remove("SOL_SHORT_ENTRY_PRICE");
+        variables.remove("BTC_LONG_ENTRY_PRICE");
+        variables.remove("BTC_SHORT_ENTRY_PRICE");
+        variables.remove("ETH_LONG_ENTRY_PRICE");
+        variables.remove("ETH_SHORT_ENTRY_PRICE");
+    }
+
+    private static String createEntryPriceVariableName(JupiterPerpsPosition position) {
+        String asset = switch (position.tradedTokenMint()) {
+            case "So11111111111111111111111111111111111111112" -> "SOL";
+            case "3NZ9JMVBmGAqocybic2c7LQCJScmgsAZ6vQqTDzcqmJh" -> "BTC";
+            case "7vfCXTUXx5WJV5JADk17DUJ4ksgau7utNKj4b963voxs" -> "ETH";
+            default -> throw new IllegalArgumentException(
+                    "Unsupported Jupiter Perps traded token mint: " + position.tradedTokenMint()
+            );
+        };
+
+        return asset + "_" + position.direction() + "_ENTRY_PRICE";
+    }
+
+    private final Map<String, String> variables;
+    private final JupiterPerpsService jupiterPerpsService;
+}

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/PriceAlarm.tjava

@@ -1,11 +1,17 @@
 package com.r35157.jupiterperpsalarm.impl.ref;
 
+import java.math.BigDecimal;
 import java.time.Instant;
 
 public final class PriceAlarm {
 
-    public PriceAlarm(PriceAlarmDefinition definition, AlarmAction action) {
+    public PriceAlarm(
+            PriceAlarmDefinition definition,
+            AlarmVariableResolver variableResolver,
+            AlarmAction action
+    ) {
         this.definition = definition;
+        this.variableResolver = variableResolver;
         this.action = action;
     }
 
@@ -16,9 +22,23 @@ public final class PriceAlarm {
             );
         }
 
+        BigDecimal target;
+        try {
+            target = AlarmTargetParser.parse(
+                    variableResolver.resolve(definition.targetExpression())
+            );
+        } catch (RuntimeException exception) {
+            System.err.printf(
+                    "Could not resolve target for alarm %d: %s%n",
+                    definition.id(),
+                    exception.getMessage()
+            );
+            return;
+        }
+
         boolean reached = definition.direction().reached(
                 price.priceUsd(),
-                definition.target()
+                target
         );
 
         boolean enteredTriggeredSide = previousReached == null
@@ -37,13 +57,13 @@ public final class PriceAlarm {
                 return;
             }
 
-            trigger(price);
+            trigger(price, target);
             return;
         }
 
         if (definition.trigger() == AlarmTrigger.PERSISTENT) {
             if (lastTriggeredAt == null || persistentGracePeriodHasPassed()) {
-                trigger(price);
+                trigger(price, target);
             }
             return;
         }
@@ -75,13 +95,39 @@ public final class PriceAlarm {
         );
     }
 
-    private void trigger(OraclePrice price) {
+    private void trigger(OraclePrice price, BigDecimal target) {
         triggerCount++;
         lastTriggeredAt = Instant.now();
-        action.trigger(price, definition);
+
+        String note;
+
+        try {
+            note = variableResolver.resolve(definition.note());
+        } catch (RuntimeException exception) {
+            System.err.printf(
+                    "Could not resolve note for alarm %d: %s%n",
+                    definition.id(),
+                    exception.getMessage()
+            );
+            return;
+        }
+
+        ResolvedPriceAlarm resolvedAlarm = new ResolvedPriceAlarm(
+                definition.id(),
+                definition.asset(),
+                definition.direction(),
+                target,
+                definition.trigger(),
+                definition.triggerGracePeriod(),
+                definition.severity(),
+                note
+        );
+
+        action.trigger(price, resolvedAlarm);
     }
 
     private final PriceAlarmDefinition definition;
+    private final AlarmVariableResolver variableResolver;
     private final AlarmAction action;
 
     private Instant lastTriggeredAt;

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/PriceAlarmDefinition.tjava

@@ -2,14 +2,13 @@ package com.r35157.jupiterperpsalarm.impl.ref;
 
 import com.r35157.jupiterperpsalarm.AlarmSeverity;
 
-import java.math.BigDecimal;
 import java.util.Objects;
 
 public record PriceAlarmDefinition(
         int id,
         JupiterPerpsAsset asset,
         PriceDirection direction,
-        BigDecimal target,
+        String targetExpression,
         AlarmTrigger trigger,
         ΩsecondsΩ triggerGracePeriod,
         AlarmSeverity severity,
@@ -18,12 +17,13 @@ public record PriceAlarmDefinition(
     public PriceAlarmDefinition {
         Objects.requireNonNull(asset, "asset");
         Objects.requireNonNull(direction, "direction");
-        Objects.requireNonNull(target, "target");
+        Objects.requireNonNull(targetExpression, "targetExpression");
         Objects.requireNonNull(trigger, "trigger");
+        Objects.requireNonNull(severity, "severity");
         Objects.requireNonNull(note, "note");
 
-        if (target.signum() < 0) {
+        if (targetExpression.isBlank()) {
-            throw new IllegalArgumentException("Target price cannot be negative (was: " + target.signum() + ")!");
+            throw new IllegalArgumentException("Target expression cannot be blank");
         }
 
         if (triggerGracePeriod < 0) {

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/PushoverAlarmAction.tjava

@@ -18,7 +18,7 @@ public final class PushoverAlarmAction implements AlarmAction {
     }
 
     @Override
-    public void trigger(OraclePrice price, PriceAlarmDefinition alarm) {
+    public void trigger(OraclePrice price, ResolvedPriceAlarm alarm) {
         String title = "Jupiter Perps " + price.asset() + " alarm";
         String message = createMessage(price, alarm);
 
@@ -26,7 +26,7 @@ public final class PushoverAlarmAction implements AlarmAction {
                 form("user", userKey) + "&" +
                 form("title", title) + "&" +
                 form("message", message) + "&" +
-                createPushoverSeverityParameters(alarm.severity());;
+                createPushoverSeverityParameters(alarm.severity());
 
         HttpRequest request = HttpRequest.newBuilder(PUSHOVER_URI)
                 .timeout(Duration.ofSeconds(15))
@@ -69,7 +69,7 @@ public final class PushoverAlarmAction implements AlarmAction {
         };
     }
 
-    private static String createMessage(OraclePrice price, PriceAlarmDefinition alarm) {
+    private static String createMessage(OraclePrice price, ResolvedPriceAlarm alarm) {
         return String.format(
                 "%d - %s: %s%n%n%s is %s USD.%nTarget: %s %s USD.%nOracle time: %s.%nSlot: %d.",
                 alarm.id(),

src/main/tjava/com/r35157/jupiterperpsalarm/impl/ref/ResolvedPriceAlarm.tjava

@@ -0,0 +1,16 @@
+package com.r35157.jupiterperpsalarm.impl.ref;
+
+import com.r35157.jupiterperpsalarm.AlarmSeverity;
+import java.math.BigDecimal;
+
+public record ResolvedPriceAlarm(
+        int id,
+        JupiterPerpsAsset asset,
+        PriceDirection direction,
+        BigDecimal target,
+        AlarmTrigger trigger,
+        ΩsecondsΩ triggerGracePeriod,
+        AlarmSeverity severity,
+        String note
+) {
+}

src/main/tjava/com/r35157/libs/codec/impl/ref/Base58CodecImpl.tjava

@@ -0,0 +1,70 @@
+package com.r35157.libs.codec.impl.ref;
+
+import com.r35157.libs.codec.Base58Codec;
+
+public class Base58CodecImpl implements Base58Codec {
+
+    public String encode(byte[] input) {
+        if (input.length == 0) {
+            return "";
+        }
+
+        byte[] copy = input.clone();
+
+        int zeros = 0;
+        while (zeros < copy.length && copy[zeros] == 0) {
+            zeros++;
+        }
+
+        char[] encoded = new char[copy.length * 2];
+        int outputStart = encoded.length;
+
+        int inputStart = zeros;
+        while (inputStart < copy.length) {
+            int remainder = divmod58(
+                    copy,
+                    inputStart
+            );
+
+            if (copy[inputStart] == 0) {
+                inputStart++;
+            }
+
+            encoded[--outputStart] = ALPHABET[remainder];
+        }
+
+        while (outputStart < encoded.length && encoded[outputStart] == ENCODED_ZERO) {
+            outputStart++;
+        }
+
+        while (zeros-- > 0) {
+            encoded[--outputStart] = ENCODED_ZERO;
+        }
+
+        return new String(
+                encoded,
+                outputStart,
+                encoded.length - outputStart
+        );
+    }
+
+    private static int divmod58(byte[] number, int startAt) {
+        int remainder = 0;
+
+        for (int i = startAt; i < number.length; i++) {
+            int digit = number[i] & 0xff;
+            int temp = remainder * 256 + digit;
+
+            number[i] = (byte) (temp / 58);
+            remainder = temp % 58;
+        }
+
+        return remainder;
+    }
+
+    private static final char[] ALPHABET =
+            "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz".toCharArray();
+
+    private static final char ENCODED_ZERO =
+            ALPHABET[0];
+}

src/main/tjava/com/r35157/libs/jupiter/perps/JupiterPerpsPosition.tjava

@@ -1,22 +0,0 @@
-package com.r35157.libs.jupiter.perps;
-
-import java.math.BigDecimal;
-
-/**
- * Represents a Jupiter Perps position.
- *
- * <p>A Jupiter Perps position is represented on-chain by a Solana account owned by
- * the Jupiter Perps program. This record contains the public API view of such a
- * position.</p>
- *
- * <p>The initial version of this API only exposes the position account and the entry
- * price. More position fields may be added later as the Jupiter Perps API matures.</p>
- *
- * @param positionAccount the Solana account address of the Jupiter Perps position
- * @param entryPrice the entry price of the position, denominated in USDC
- */
-public record JupiterPerpsPosition(
-        ΩJupiterPerpsPositionAccountΩ positionAccount,
-        ΩUSDCPriceΩ entryPrice
-) {
-}

src/main/tjava/com/r35157/libs/jupiter/perps/JupiterPerpsPositionService.tjava

@@ -1,30 +0,0 @@
-package com.r35157.libs.jupiter.perps;
-
-import java.io.IOException;
-
-/**
- * Service for reading Jupiter Perps positions.
- *
- * <p>This service is read-only. It does not open, close, modify, or sign transactions
- * for Jupiter Perps positions.</p>
- *
- * <p>The first supported operation is reading a known Jupiter Perps position account
- * and returning its decoded position data.</p>
- */
-public interface JupiterPerpsPositionService {
-    /**
-     * Reads a Jupiter Perps position from a known position account.
-     *
-     * <p>The supplied account must be the Solana account that stores the Jupiter Perps
-     * position state. It is not the wallet address, token account, custody account, pool
-     * account, or position request account.</p>
-     *
-     * @param positionAccount the Solana account address of the Jupiter Perps position
-     * @return the decoded Jupiter Perps position
-     * @throws IOException if the position account could not be fetched or decoded
-     * @throws InterruptedException if the calling thread is interrupted while fetching
-     *                              the position account
-     */
-    JupiterPerpsPosition getPosition(ΩJupiterPerpsPositionAccountΩ positionAccount)
-            throws IOException, InterruptedException;
-}

src/main/tjava/com/r35157/libs/jupiter/perps/impl/anchoridl/AnchorIdlJupiterPerpsCustodyDecoder.tjava

@@ -0,0 +1,50 @@
+package com.r35157.libs.jupiter.perps.impl.anchoridl;
+
+import com.r35157.libs.codec.Base58Codec;
+import com.r35157.libs.codec.impl.ref.Base58CodecImpl;
+import com.r35157.libs.solana.SolanaAccountInfo;
+
+import java.util.Base64;
+
+class AnchorIdlJupiterPerpsCustodyDecoder {
+
+    ΩSPLMintAddressΩ decodeMint(
+            SolanaAccountInfo custodyAccountInfo
+    ) {
+        byte[] data = Base64.getDecoder().decode(custodyAccountInfo.dataBase64());
+
+        if (data.length < MINT_OFFSET + PUBLIC_KEY_LENGTH) {
+            throw new IllegalArgumentException(
+                    "Jupiter Perps custody account data is too short: " + data.length
+            );
+        }
+
+        return readPublicKey(data, MINT_OFFSET);
+    }
+
+    private ΩSPLMintAddressΩ readPublicKey(
+            byte[] data,
+            int offset
+    ) {
+        byte[] publicKeyBytes = new byte[PUBLIC_KEY_LENGTH];
+
+        System.arraycopy(
+                data,
+                offset,
+                publicKeyBytes,
+                0,
+                PUBLIC_KEY_LENGTH
+        );
+
+        return base58.encode(publicKeyBytes);
+    }
+
+    private static final int ANCHOR_DISCRIMINATOR_LENGTH = 8;
+    private static final int PUBLIC_KEY_LENGTH = 32;
+
+    private static final int MINT_OFFSET =
+            ANCHOR_DISCRIMINATOR_LENGTH
+                    + PUBLIC_KEY_LENGTH; // pool
+
+    private static final Base58Codec base58 = new Base58CodecImpl();
+}

src/main/tjava/com/r35157/libs/jupiter/perps/impl/anchoridl/AnchorIdlJupiterPerpsPositionDecoder.tjava

@@ -1,6 +1,9 @@
 package com.r35157.libs.jupiter.perps.impl.anchoridl;
 
+import com.r35157.libs.codec.Base58Codec;
+import com.r35157.libs.codec.impl.ref.Base58CodecImpl;
 import com.r35157.libs.jupiter.perps.JupiterPerpsPosition;
+import com.r35157.libs.jupiter.perps.JupiterPerpsPositionDirection;
 import com.r35157.libs.solana.SolanaAccountInfo;
 
 import java.math.BigDecimal;
@@ -12,7 +15,8 @@ class AnchorIdlJupiterPerpsPositionDecoder {
 
     JupiterPerpsPosition decode(
             ΩJupiterPerpsPositionAccountΩ positionAccount,
-            SolanaAccountInfo accountInfo
+            SolanaAccountInfo accountInfo,
+            ΩSPLMintAddressΩ tradedTokenMint
     ) {
         byte[] data = Base64.getDecoder().decode(accountInfo.dataBase64());
 
@@ -22,6 +26,9 @@ class AnchorIdlJupiterPerpsPositionDecoder {
             );
         }
 
+        JupiterPerpsPositionDirection direction =
+                decodeDirection(data[SIDE_OFFSET]);
+
         long rawEntryPrice = ByteBuffer
                 .wrap(data, PRICE_OFFSET, U64_LENGTH)
                 .order(ByteOrder.LITTLE_ENDIAN)
@@ -33,25 +40,75 @@ class AnchorIdlJupiterPerpsPositionDecoder {
 
         JupiterPerpsPosition pos = new JupiterPerpsPosition(
                 positionAccount,
-                entryPrice
+                entryPrice,
+                direction,
+                tradedTokenMint
         );
 
         return pos;
     }
 
+    ΩSolanaAddressΩ decodeCustodyAccount(SolanaAccountInfo accountInfo) {
+        byte[] data = Base64.getDecoder().decode(accountInfo.dataBase64());
+
+        if (data.length < CUSTODY_OFFSET + PUBLIC_KEY_LENGTH) {
+            throw new IllegalArgumentException(
+                    "Jupiter Perps position account data is too short: " + data.length
+            );
+        }
+
+        return readPublicKey(
+                data,
+                CUSTODY_OFFSET
+        );
+    }
+
+    private JupiterPerpsPositionDirection decodeDirection(
+            byte rawSide
+    ) {
+        // Jupiter Perps position side values are encoded as 1 = LONG, 2 = SHORT.
+        JupiterPerpsPositionDirection direction = switch (rawSide) {
+            case 1 -> JupiterPerpsPositionDirection.LONG;
+            case 2 -> JupiterPerpsPositionDirection.SHORT;
+            default -> throw new IllegalArgumentException(
+                    "Unknown Jupiter Perps position side: " + rawSide
+            );
+        };
+
+        return direction;
+    }
+
+    private ΩSolanaAddressΩ readPublicKey(
+            byte[] data,
+            int offset
+    ) {
+        byte[] publicKeyBytes = new byte[PUBLIC_KEY_LENGTH];
+
+        System.arraycopy(
+                data,
+                offset,
+                publicKeyBytes,
+                0,
+                PUBLIC_KEY_LENGTH
+        );
+
+        return base58.encode(publicKeyBytes);
+    }
+
     private static final int ANCHOR_DISCRIMINATOR_LENGTH = 8;
     private static final int PUBLIC_KEY_LENGTH = 32;
     private static final int I64_LENGTH = 8;
-    private static final int U64_LENGTH = 8;
     private static final int SIDE_ENUM_LENGTH = 1;
+    private static final int U64_LENGTH = 8;
 
-    private static final int PRICE_OFFSET =
+    private static final int OWNER_OFFSET = ANCHOR_DISCRIMINATOR_LENGTH;
-            ANCHOR_DISCRIMINATOR_LENGTH
+    private static final int POOL_OFFSET = OWNER_OFFSET + PUBLIC_KEY_LENGTH;
-                    + PUBLIC_KEY_LENGTH // owner
+    private static final int CUSTODY_OFFSET = POOL_OFFSET + PUBLIC_KEY_LENGTH;
-                    + PUBLIC_KEY_LENGTH // pool
+    private static final int COLLATERAL_CUSTODY_OFFSET = CUSTODY_OFFSET + PUBLIC_KEY_LENGTH; // custody
-                    + PUBLIC_KEY_LENGTH // custody
+    private static final int OPEN_TIME_OFFSET = COLLATERAL_CUSTODY_OFFSET + PUBLIC_KEY_LENGTH;
-                    + PUBLIC_KEY_LENGTH // collateralCustody
+    private static final int UPDATE_TIME_OFFSET = OPEN_TIME_OFFSET + I64_LENGTH; // openTime
-                    + I64_LENGTH        // openTime
+    private static final int SIDE_OFFSET = UPDATE_TIME_OFFSET + I64_LENGTH;
-                    + I64_LENGTH        // updateTime
+    private static final int PRICE_OFFSET = SIDE_OFFSET + SIDE_ENUM_LENGTH;
-                    + SIDE_ENUM_LENGTH; // side
+
+    private static final Base58Codec base58 = new Base58CodecImpl();
 }

src/main/tjava/com/r35157/libs/jupiter/perps/impl/anchoridl/AnchorIdlJupiterPerpsPositionServiceImpl.tjava

@@ -1,43 +0,0 @@
-package com.r35157.libs.jupiter.perps.impl.anchoridl;
-
-import com.r35157.libs.jupiter.perps.JupiterPerpsPosition;
-import com.r35157.libs.jupiter.perps.JupiterPerpsPositionService;
-import com.r35157.libs.solana.SolanaAccountInfo;
-import com.r35157.libs.solana.SolanaBlockChain;
-
-import java.io.IOException;
-
-public class AnchorIdlJupiterPerpsPositionServiceImpl implements JupiterPerpsPositionService {
-
-    public AnchorIdlJupiterPerpsPositionServiceImpl(
-            SolanaBlockChain solanaBlockChain
-    ) {
-        this.solanaBlockChain = solanaBlockChain;
-        this.positionDecoder = new AnchorIdlJupiterPerpsPositionDecoder();
-    }
-
-    @Override
-    public JupiterPerpsPosition getPosition(ΩJupiterPerpsPositionAccountΩ positionAccount)
-            throws IOException, InterruptedException {
-        SolanaAccountInfo accountInfo = solanaBlockChain.getAccountInfo(positionAccount);
-
-        if (accountInfo == null) {
-            throw new IllegalArgumentException("Jupiter Perps position account does not exist: " + positionAccount);
-        }
-
-        if (!JUPITER_PERPS_PROGRAM_ID.equals(accountInfo.owner())) {
-            throw new IllegalArgumentException(
-                    "Account is not owned by Jupiter Perps program: " + positionAccount
-            );
-        }
-
-        JupiterPerpsPosition pos = positionDecoder.decode(positionAccount, accountInfo);
-        return pos;
-    }
-
-    private static final ΩJupiterPerpsProgramIdΩ JUPITER_PERPS_PROGRAM_ID =
-            "PERPHjGBqRHArX4DySjwM6UJHiR3sWAatqfdBS2qQJu";
-
-    private final SolanaBlockChain solanaBlockChain;
-    private final AnchorIdlJupiterPerpsPositionDecoder positionDecoder;
-}

src/main/tjava/com/r35157/libs/jupiter/perps/impl/anchoridl/AnchorIdlJupiterPerpsServiceImpl.tjava

@@ -0,0 +1,99 @@
+package com.r35157.libs.jupiter.perps.impl.anchoridl;
+
+import com.r35157.libs.jupiter.perps.JupiterPerpsPosition;
+import com.r35157.libs.jupiter.perps.JupiterPerpsService;
+import com.r35157.libs.solana.SolanaAccountInfo;
+import com.r35157.libs.solana.SolanaBlockChain;
+import com.r35157.libs.solana.SolanaProgramAccountMemcmpFilter;
+
+import java.io.IOException;
+import java.util.HashSet;
+import java.util.Set;
+
+public class AnchorIdlJupiterPerpsServiceImpl implements JupiterPerpsService {
+
+    public AnchorIdlJupiterPerpsServiceImpl(
+            SolanaBlockChain solanaBlockChain
+    ) {
+        this.solanaBlockChain = solanaBlockChain;
+        this.positionDecoder = new AnchorIdlJupiterPerpsPositionDecoder();
+        this.custodyDecoder = new AnchorIdlJupiterPerpsCustodyDecoder();
+    }
+
+    @Override
+    public JupiterPerpsPosition getPosition(ΩJupiterPerpsPositionAccountΩ positionAccount)
+            throws IOException, InterruptedException {
+        SolanaAccountInfo accountInfo = solanaBlockChain.getAccountInfo(positionAccount);
+
+        if (accountInfo == null) {
+            throw new IllegalArgumentException("Jupiter Perps position account does not exist: " + positionAccount);
+        }
+
+        if (!JUPITER_PERPS_PROGRAM_ID.equals(accountInfo.owner())) {
+            throw new IllegalArgumentException(
+                    "Account is not owned by Jupiter Perps program: " + positionAccount
+            );
+        }
+
+        ΩSPLMintAddressΩ tradedTokenMint = getTradedTokenMint(accountInfo);
+        JupiterPerpsPosition pos = positionDecoder.decode(positionAccount, accountInfo, tradedTokenMint);
+
+        return pos;
+    }
+
+    @Override
+    public Set<JupiterPerpsPosition> getOpenPositions(ΩSolanaWalletIdΩ owner)
+            throws IOException, InterruptedException {
+        Set<SolanaAccountInfo> accountInfos = solanaBlockChain.getProgramAccounts(
+                JUPITER_PERPS_PROGRAM_ID,
+                Set.of(new SolanaProgramAccountMemcmpFilter(
+                        POSITION_OWNER_OFFSET,
+                        owner
+                ))
+        );
+
+        Set<JupiterPerpsPosition> positions = new HashSet<>();
+
+        for (SolanaAccountInfo accountInfo : accountInfos) {
+            ΩSolanaAddressΩ address = accountInfo.address();
+            ΩSolanaProgramIdΩ programId = accountInfo.owner();
+
+            if (!JUPITER_PERPS_PROGRAM_ID.equals(programId)) {
+                String errorMsg = "Account '" + address + "' is not owned by Jupiter Perps program '" +
+                        programId + "'";
+                throw new IllegalArgumentException(errorMsg);
+            }
+
+            ΩSPLMintAddressΩ tradedTokenMint = getTradedTokenMint(accountInfo);
+
+            JupiterPerpsPosition position = positionDecoder.decode(address, accountInfo, tradedTokenMint);
+            positions.add(position);
+        }
+
+        return Set.copyOf(positions);
+    }
+
+    private ΩSPLMintAddressΩ getTradedTokenMint(SolanaAccountInfo positionAccountInfo)
+            throws IOException, InterruptedException
+    {
+        ΩSolanaAddressΩ custodyAccount = positionDecoder.decodeCustodyAccount(positionAccountInfo);
+        SolanaAccountInfo custodyAccountInfo = solanaBlockChain.getAccountInfo(custodyAccount);
+
+        if (custodyAccountInfo == null) {
+            throw new IllegalArgumentException(
+                    "Jupiter Perps custody account does not exist: " + custodyAccount
+            );
+        }
+
+        ΩSPLMintAddressΩ mintAddress = custodyDecoder.decodeMint(custodyAccountInfo);
+        return mintAddress;
+    }
+
+    private static final ΩJupiterPerpsProgramIdΩ JUPITER_PERPS_PROGRAM_ID =
+            "PERPHjGBqRHArX4DySjwM6UJHiR3sWAatqfdBS2qQJu";
+    private static final int POSITION_OWNER_OFFSET = 8;
+
+    private final SolanaBlockChain solanaBlockChain;
+    private final AnchorIdlJupiterPerpsPositionDecoder positionDecoder;
+    private final AnchorIdlJupiterPerpsCustodyDecoder custodyDecoder;
+}

src/main/tjava/com/r35157/nenjim/hubd/impl/ref/Main.tjava

@@ -1,5 +1,10 @@
 package com.r35157.nenjim.hubd.impl.ref;
 
+import com.r35157.libs.jupiter.perps.JupiterPerpsPosition;
+import com.r35157.libs.jupiter.perps.JupiterPerpsService;
+import com.r35157.libs.jupiter.perps.impl.anchoridl.AnchorIdlJupiterPerpsServiceImpl;
+import com.r35157.libs.solana.SolanaBlockChain;
+import com.r35157.libs.solana.impl.ref.SolanaBlockChainImpl;
 import com.r35157.nenjim.hubd.ctx.Context;
 import com.r35157.nenjim.hubd.NenjimHub;
 import org.slf4j.Logger;
@@ -12,12 +17,21 @@ import com.r35157.nenjim.hubd.journal.JournalManager;
 import com.r35157.nenjim.hubd.impl.ref.JournalManagerImpl;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.Set;
 
 public class Main {
 
     // TODO: Consider if we really need a Main class or we just need to move the main method to NenjimHubImpl?
     static void main(String[] args) throws Exception {
         NenjimHubImpl nenjimHub = new NenjimHubImpl();
+
+        /*
+        SolanaBlockChain sbc = new SolanaBlockChainImpl();
+        JupiterPerpsService jupiter = new AnchorIdlJupiterPerpsServiceImpl(sbc);
+        ΩSolanaWalletIdΩ walletId = "vj98roDZ7744EBfxyuDFkKpEGCsKQLr7K8UFRumJNHf";
+        Set<JupiterPerpsPosition> positions = jupiter.getOpenPositions(walletId);
+        int a=0;
+        */
         nenjimHub.awaitShutdown();
 
         /*        try {