Add avaje-config-toml

avaje-config-toml/pom.xml

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>org.avaje</groupId>
+    <artifactId>java11-oss</artifactId>
+    <version>4.4</version>
+    <relativePath/>
+  </parent>
+
+  <groupId>io.avaje</groupId>
+  <artifactId>avaje-config-toml</artifactId>
+  <version>4.1-SNAPSHOT</version>
+
+  <scm>
+    <connection>scm:git:[email protected]:avaje/avaje-config.git</connection>
+    <developerConnection>scm:git:[email protected]:avaje/avaje-config.git</developerConnection>
+    <tag>HEAD</tag>
+  </scm>
+
+  <properties>
+    <surefire.useModulePath>false</surefire.useModulePath>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>io.avaje</groupId>
+      <artifactId>avaje-config</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.tomlj</groupId>
+      <artifactId>tomlj</artifactId>
+      <version>1.1.1</version>
+    </dependency>
+
+    <dependency>
+      <groupId>io.avaje</groupId>
+      <artifactId>junit</artifactId>
+      <version>1.5</version>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>ch.qos.logback</groupId>
+      <artifactId>logback-classic</artifactId>
+      <version>1.5.7</version>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>io.avaje</groupId>
+      <artifactId>avaje-applog-slf4j</artifactId>
+      <version>1.0</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+</project>

avaje-config-toml/src/main/java/io/avaje/config/toml/TomlParser.java

@@ -0,0 +1,45 @@
+package io.avaje.config.toml;
+
+import io.avaje.config.ConfigParser;
+import org.jspecify.annotations.NullMarked;
+import org.tomlj.Toml;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.Reader;
+import java.io.UncheckedIOException;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+@NullMarked
+public final class TomlParser implements ConfigParser {
+
+  private static final String[] extensions = {"toml"};
+
+  @Override
+  public String[] supportedExtensions() {
+    return extensions;
+  }
+
+  @Override
+  public Map<String, String> load(Reader reader) {
+    try {
+      return Toml.parse(reader).dottedEntrySet()
+        .stream()
+        .collect(Collectors.toMap(Map.Entry::getKey, entry -> String.valueOf(entry.getValue())));
+    } catch (IOException exception) {
+      throw new UncheckedIOException(exception);
+    }
+  }
+
+  @Override
+  public Map<String, String> load(InputStream is) {
+    try {
+      return Toml.parse(is).dottedEntrySet()
+        .stream()
+        .collect(Collectors.toMap(Map.Entry::getKey, entry -> String.valueOf(entry.getValue())));
+    } catch (IOException exception) {
+      throw new UncheckedIOException(exception);
+    }
+  }
+}

avaje-config-toml/src/main/java/module-info.java

@@ -0,0 +1,12 @@
+import io.avaje.config.toml.TomlParser;
+
+module io.avaje.config.toml {
+
+  requires io.avaje.config;
+  requires org.tomlj;
+
+  exports io.avaje.config.toml;
+
+  provides io.avaje.config.ConfigExtension with TomlParser;
+
+}

avaje-config-toml/src/main/resources/META-INF/services/io.avaje.config.ConfigExtension

@@ -0,0 +1 @@
+io.avaje.config.toml.TomlParser

avaje-config-toml/src/test/java/io/avaje/config/toml/TomlParserTest.java

@@ -0,0 +1,51 @@
+package io.avaje.config.toml;
+
+import org.junit.jupiter.api.Test;
+
+import java.io.ByteArrayInputStream;
+import java.io.StringReader;
+import java.nio.charset.StandardCharsets;
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.*;
+
+class TomlParserTest {
+
+  @Test
+  void supportedExtensions() {
+    var parser = new TomlParser();
+    assertThat(parser.supportedExtensions()).isEqualTo(new String[]{"toml"});
+  }
+
+  private static String input() {
+    return "key3 = \"c\"\n" +
+      "\n" +
+      "[one]\n" +
+      "key = \"a\"\n" +
+      "key2 = \"b\"\n";
+  }
+
+  @Test
+  void load_reader() {
+    var parser = new TomlParser();
+    Map<String, String> map = parser.load(new StringReader(input()));
+
+    assertThat(map).hasSize(3);
+    assertThat(map).containsOnlyKeys("one.key", "one.key2", "key3");
+    assertThat(map).containsEntry("one.key", "a");
+    assertThat(map).containsEntry("one.key2", "b");
+    assertThat(map).containsEntry("key3", "c");
+  }
+
+  @Test
+  void load_inputStream() {
+    var parser = new TomlParser();
+    Map<String, String> map = parser.load(new ByteArrayInputStream(input().getBytes(StandardCharsets.UTF_8)));
+
+    assertThat(map).hasSize(3);
+    assertThat(map).containsOnlyKeys("one.key", "one.key2", "key3");
+    assertThat(map).containsEntry("one.key", "a");
+    assertThat(map).containsEntry("one.key2", "b");
+    assertThat(map).containsEntry("key3", "c");
+  }
+}

pom.xml

@@ -15,6 +15,7 @@
 
   <modules>
     <module>avaje-config</module>
+    <module>avaje-config-toml</module>
     <module>avaje-aws-appconfig</module>
     <module>avaje-dynamic-logback</module>
   </modules>