text-logger-slf4j: introduce wrapper for formatted logging

.checkstyle/suppressions.xml

@@ -8,6 +8,9 @@
   <suppress files="src[\\/](test|jmh)[\\/]java[\\/].*" checks="(FilteringWriteTag|JavadocPackage|MissingJavadoc.*)"/>
   <suppress files="api[\\/]src[\\/]main[\\/]java[\\/]net[\\/]kyori[\\/]adventure[\\/]internal[\\/].*" checks="(FilteringWriteTag|JavadocPackage|MissingJavadoc.*)"/>
   <suppress files="minimessage[\\/]src[\\/]main[\\/]java[\\/]net[\\/]kyori[\\/]adventure[\\/]text[\\/]minimessage[\\/]parser[\\/].*" checks="(FilteringWriteTag|JavadocPackage|MissingJavadoc.*)"/>
+
+  <!-- no package JD on multirelease variants -->
+  <suppress files="src[\\/]main[\\/]java\d+[\\/].*" checks="JavadocPackage"/>
 
   <suppress files=".*[\\/]nbt[\\/](List|Compound)BinaryTag.java" checks="MethodName"/>
 </suppressions>

bom/build.gradle.kts

@@ -18,6 +18,7 @@ dependencies {
       "nbt",
       "serializer-configurate3",
       "serializer-configurate4",
+      "text-logger-slf4j",
       "text-minimessage",
       "text-serializer-gson",
       "text-serializer-gson-legacy-impl",

gradle/libs.versions.toml

@@ -10,6 +10,8 @@ indra = "2.1.1"
 jmh = "1.35"
 jmhPlugin = "0.6.6"
 junit = "5.8.2"
+mockito = "4.5.1"
+slf4j = "1.7.36"
 truth = "1.1.3"
 
 [libraries]
@@ -28,6 +30,10 @@ kotlin-testJunit5 = { module = "org.jetbrains.kotlin:kotlin-test-junit5" }
 configurate-v3 = "org.spongepowered:configurate-core:3.7.3"
 configurate-v4 = "org.spongepowered:configurate-core:4.1.2"
 
+# text-logger-slf4j
+slf4j = { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }
+slf4jtest = "com.github.valfirst:slf4j-test:2.6.1" # Specific versions are needed for different SLF4J versions
+
 # text-serializer-gson
 gson = "com.google.code.gson:gson:2.8.0"
 

settings.gradle.kts

@@ -34,6 +34,7 @@ sequenceOf(
   "nbt",
   "serializer-configurate3",
   "serializer-configurate4",
+  "text-logger-slf4j",
   "text-minimessage",
   "text-serializer-gson",
   "text-serializer-gson-legacy-impl",

text-logger-slf4j/build.gradle.kts

@@ -0,0 +1,28 @@
+plugins {
+  id("adventure.common-conventions")
+}
+
+dependencies {
+  api(projects.adventureApi)
+  api(libs.slf4j)
+  testImplementation(libs.slf4jtest)
+}
+
+sourceSets.main {
+  multirelease {
+    alternateVersions(9)
+  }
+}
+
+applyJarMetadata("net.kyori.adventure.text.logger.slf4j")
+
+eclipse {
+  // Make sure slf4j doesn't end up on the module path until we are actually a module
+  classpath.file.whenMerged {
+    (this as org.gradle.plugins.ide.eclipse.model.Classpath).entries.forEach { entry ->
+      if (entry is org.gradle.plugins.ide.eclipse.model.Library) {
+        entry.entryAttributes["module"] = false
+      }
+    }
+  }
+}

text-logger-slf4j/src/main/java/net/kyori/adventure/text/logger/slf4j/CallerClassFinder.java

@@ -0,0 +1,43 @@
+/*
+ * This file is part of adventure, licensed under the MIT License.
+ *
+ * Copyright (c) 2017-2022 KyoriPowered
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package net.kyori.adventure.text.logger.slf4j;
+
+// Java 8 version, see Java 9 version as well
+final class CallerClassFinder {
+  private CallerClassFinder() {
+  }
+
+  static String callingClassName() {
+    return callingClassName(2); // this, plus the calling method
+  }
+
+  static String callingClassName(final int elementsToSkip) { // elementsToSkip not counting this method
+    final StackTraceElement[] elements = Thread.currentThread().getStackTrace(); // includes call to getStackTrace()
+    if (elements.length <= elementsToSkip) {
+      throw new IllegalArgumentException("Not enough stack elements to skip " + elementsToSkip + " elements");
+    } else {
+      return elements[elementsToSkip + 2].getClassName();
+    }
+  }
+}