Demo lightbend / typesafe configuration library

common/build.gradle

@@ -13,8 +13,9 @@ apply from: '../buildSrc/lombok-dependencies.gradle'
 
 dependencies {
     api platform(project(':platforms:common-platform'))
-    
+
     implementation 'com.google.guava:guava'
+    implementation 'com.typesafe:config'
 }
 
 test {

common/src/main/java/network/misq/common/configuration/MisqConfig.java

@@ -0,0 +1,87 @@
+/*
+ * This file is part of Bisq.
+ *
+ * Bisq is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Bisq 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 Affero General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Bisq. If not, see <http://www.gnu.org/licenses/>.
+ */
+package network.misq.common.configuration;
+
+import com.typesafe.config.Config;
+import com.typesafe.config.ConfigFactory;
+import lombok.extern.slf4j.Slf4j;
+
+/**
+ * TIPS
+ * <p>
+ * Set the Java system property -Dconfig.trace=loads to get output on stderr describing each file that is loaded.
+ * (The output will show the library attempting to load misq.json, misq.properties, and reference.conf, but not fail.)
+ * <p>
+ * Use myConfig.root().render() to get a Config as a string with comments showing where each value came from.
+ * This string can be printed out on console or logged to a file etc.
+ * <p>
+ * If you see errors like com.typesafe.config.ConfigException$Missing: No configuration setting found for key foo,
+ * and you're sure that key is defined in your config file, they might appear e.g. when you're loading configuration
+ * from a thread that's not the JVM's main thread. Try passing the ClassLoader in manually - e.g. with
+ * ConfigFactory.load(getClass().getClassLoader()) or setting the context class loader. If you don't pass one,
+ * Lightbend Config uses the calling thread's contextClassLoader, and in some cases, it may not have your configuration
+ * files in its classpath, so loading the config on that thread can yield unexpected, erroneous results.
+ * <p>
+ * REFERENCES
+ * <p>
+ * https://github.com/lightbend/config
+ * https://www.stubbornjava.com/posts/typesafe-config-features-and-example-usage
+ * https://florentfo.rest/2019/01/07/configuring-spark-applications-with-typesafe-config.html
+ */
+@Slf4j
+public class MisqConfig {
+
+    public static final String NETWORK_CONFIG_PATH = "misq.networkConfig";
+    public static final String NETWORK_IO_POOL_CONFIG_PATH = NETWORK_CONFIG_PATH + ".networkIOPool";
+
+    private static final Config MISQ_CONFIG = ConfigFactory.load("misq");
+
+    static {
+        try {
+            MISQ_CONFIG.checkValid(ConfigFactory.defaultReference(), "misq");
+        } catch (Exception ex) {
+            throw new IllegalStateException("misq.conf validation failed", ex);
+        }
+    }
+
+    /**
+     * Return the global Config object.
+     *
+     * @return Config
+     */
+    public static Config getGlobalConfig() {
+        return MISQ_CONFIG;
+    }
+
+    /**
+     * Return a Config for a given configuration path, e.g.,
+     * "misq.networkConfig.torPeerGroupServiceConfig.peerExchangeConfig".
+     *
+     * @param path String representing a valid path in misq.conf
+     * @return Config
+     */
+    public static Config getConfig(String path) {
+        MISQ_CONFIG.checkValid(ConfigFactory.defaultReference(), path);
+        return MISQ_CONFIG.getConfig(path);
+    }
+
+    public static void main(String[] args) {
+        log.info("MISQ_CONFIG = {}", MISQ_CONFIG);
+        log.info("misq.networkConfig.torPeerGroupServiceConfig = {}", getConfig("misq.networkConfig.torPeerGroupServiceConfig"));
+        log.info("misq.networkConfig.i2pPeerGroupServiceConfig = {}", getConfig("misq.networkConfig.i2pPeerGroupServiceConfig"));
+    }
+}

common/src/main/resources/misq.conf

@@ -0,0 +1,63 @@
+// A comment
+# Another comment
+misq {
+
+    networkConfig = {
+
+        networkIOPool {
+            name = "NETWORK_IO_POOL"
+            corePoolSize = 1
+            maximumPoolSize = 5000
+            keepAliveTimeInSec = 10
+        }
+
+        baseDirPath = "some/path"
+        supportedTransportTypes = "TOR,I2P"
+
+        transportConfig {
+            baseDirPath = "some/transport-config/path"
+        }
+
+        serviceNodeConfig {
+            p2pServiceNodeConfig="PEER_GROUP,DATA,CONFIDENTIAL,RELAY,MONITOR"
+        }
+
+       i2pPeerGroupServiceConfig {
+            peerGroupConfig {
+                minNumConnectedPeers=8
+                maxNumConnectedPeers=12
+                minNumReportedPeers=30
+            }
+
+            peerExchangeConfig {
+                numSeeNodesAtBoostrap=2
+                numPersistedPeersAtBoostrap=100
+                numReportedPeersAtBoostrap=50
+            }
+
+            keepAliveServiceConfig {
+                bootstrapTime=1111
+                interval=2222
+            }
+        }
+
+        torPeerGroupServiceConfig {
+            peerGroupConfig {
+                minNumConnectedPeers=8
+                maxNumConnectedPeers=12
+                minNumReportedPeers=30
+            }
+
+            peerExchangeConfig {
+                numSeeNodesAtBoostrap=2
+                numPersistedPeersAtBoostrap=100
+                numReportedPeersAtBoostrap=50
+            }
+
+            keepAliveServiceConfig {
+                bootstrapTime=1111
+                interval=2222
+            }
+        }
+    }
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha256Sum=2debee19271e1b82c6e41137d78e44e6e841035230a1a169ca47fd3fb09ed87b
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
+distributionSha256Sum=b586e04868a22fd817c8971330fec37e298f3242eb85c374181b12d637f80302
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

network/build.gradle

@@ -24,6 +24,7 @@ dependencies {
     implementation project(':security')
     implementation project(':persistence')
 
+    implementation 'com.typesafe:config'
     implementation 'com.google.guava:guava'
     implementation 'io.reactivex.rxjava2:rxjava'
     implementation 'com.google.protobuf:protobuf-gradle-plugin'

network/src/main/java/network/misq/network/NetworkService.java

@@ -20,6 +20,7 @@
 
 import lombok.Getter;
 import lombok.extern.slf4j.Slf4j;
+import network.misq.common.configuration.MisqConfig;
 import network.misq.common.threading.ExecutorFactory;
 import network.misq.common.util.NetworkUtils;
 import network.misq.network.http.HttpService;
@@ -47,6 +48,7 @@
 import java.util.function.BiConsumer;
 
 import static com.google.common.base.Preconditions.checkArgument;
+import static network.misq.common.configuration.MisqConfig.NETWORK_IO_POOL_CONFIG_PATH;
 
 /**
  * High level API for network access to p2p network as well to http services (over Tor). If user has only I2P selected
@@ -65,10 +67,12 @@ public class NetworkService {
     // If a user has 10 offers with dedicated nodes and 5 connections open, its another 100 threads + 50 at sending 
     // messages. 100-200 threads might be a usual scenario, but it could also peak much higher, so we will give 
     // maximumPoolSize sufficient headroom and use a rather short keepAliveTimeInSec.
-    public static final ThreadPoolExecutor NETWORK_IO_POOL = ExecutorFactory.getThreadPoolExecutor("NETWORK_IO_POOL",
-            1,
-            5000,
-            10,
+    public static final com.typesafe.config.Config NETWORK_IO_POOL_CONFIG = MisqConfig.getConfig(NETWORK_IO_POOL_CONFIG_PATH);
+    public static final ThreadPoolExecutor NETWORK_IO_POOL = ExecutorFactory.getThreadPoolExecutor(
+            NETWORK_IO_POOL_CONFIG.getString("name"),
+            NETWORK_IO_POOL_CONFIG.getInt("corePoolSize"),
+            NETWORK_IO_POOL_CONFIG.getInt("maximumPoolSize"),
+            NETWORK_IO_POOL_CONFIG.getLong("keepAliveTimeInSec"),
             new SynchronousQueue<>());
 
     public static record Config(String baseDirPath,

network/src/test/java/network/misq/network/TypesafeConfigTest.java

@@ -0,0 +1,23 @@
+package network.misq.network;
+
+import com.typesafe.config.Config;
+import network.misq.common.configuration.MisqConfig;
+import org.junit.jupiter.api.Test;
+
+import static network.misq.common.configuration.MisqConfig.NETWORK_IO_POOL_CONFIG_PATH;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+public class TypesafeConfigTest {
+
+    @Test
+    public void testNetworkPoolConfig() {
+        Config config = MisqConfig.getConfig(NETWORK_IO_POOL_CONFIG_PATH);
+        assertNotNull(config);
+
+        assertEquals("NETWORK_IO_POOL", config.getString("name"));
+        assertEquals(1, config.getInt("corePoolSize"));
+        assertEquals(5000, config.getInt("maximumPoolSize"));
+        assertEquals(10, config.getLong("keepAliveTimeInSec"));
+    }
+}

platforms/common-platform/build.gradle

@@ -12,6 +12,13 @@ dependencies {
             version { require '1.3.2' }
         }
 
+        /////////////////////////////////////////////////////////////////////////////////
+        // Typesafe configuration dependency constraints
+        /////////////////////////////////////////////////////////////////////////////////
+        api('com.typesafe:config') {
+            version { require '1.4.1' }
+        }
+
         /////////////////////////////////////////////////////////////////////////////////
         // Protobuf dependency constraints
         /////////////////////////////////////////////////////////////////////////////////