Add JackfruitDemo

demo/.classpath

@@ -23,6 +23,7 @@
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17">
 		<attributes>
+			<attribute name="module" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
@@ -31,14 +32,13 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry combineaccessrules="false" kind="src" path="/jackfruit"/>
 	<classpathentry kind="src" output="target/test-classes" path="target/generated-test-sources/test-annotations">
 		<attributes>
+			<attribute name="ignore_optional_problems" value="true"/>
+			<attribute name="test" value="true"/>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
-			<attribute name="ignore_optional_problems" value="true"/>
 			<attribute name="m2e-apt" value="true"/>
-			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>

demo/jackfruit/demo/DemoConfigFactory.java

@@ -0,0 +1,75 @@
+package jackfruit.demo;
+
+import jackfruit.processor.ConfigFactory;
+import java.lang.Double;
+import java.lang.Override;
+import java.lang.String;
+import org.apache.commons.configuration2.Configuration;
+import org.apache.commons.configuration2.PropertiesConfiguration;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+public final class DemoConfigFactory implements ConfigFactory<DemoConfig> {
+  private static final Logger logger = LogManager.getLogger();
+
+  @Override
+  public PropertiesConfiguration toConfig(DemoConfig t) {
+    PropertiesConfiguration config = new PropertiesConfiguration();
+    config.setProperty("prefix.key", t.intMethod());
+    config.setProperty("prefix.doubleMethod", t.doubleMethod());
+    config.setProperty("prefix.StringMethod", t.StringMethod());
+    SomeRandomClassParser randomClassparser = new SomeRandomClassParser();
+    config.setProperty("prefix.randomClass", randomClassparser.toString(t.randomClass()));
+    return config;
+  }
+
+  @Override
+  public DemoConfig fromConfig(Configuration config) {
+    return new DemoConfig() {
+      /**
+       * field comment
+       */
+      public int intMethod() {
+        return config.getInt("prefix.key");
+      }
+
+      public Double doubleMethod() {
+        return config.getDouble("prefix.doubleMethod");
+      }
+
+      public String StringMethod() {
+        return config.getString("prefix.StringMethod");
+      }
+
+      public SomeRandomClass randomClass() {
+        SomeRandomClassParser parser = new SomeRandomClassParser();
+        return parser.fromString(config.getString("prefix.randomClass"));
+      }
+    };
+  }
+
+  @Override
+  public DemoConfig getTemplate() {
+    return new DemoConfig() {
+      /**
+       * field comment
+       */
+      public int intMethod() {
+        return 0;
+      }
+
+      public Double doubleMethod() {
+        return 0.;
+      }
+
+      public String StringMethod() {
+        return "Default String";
+      }
+
+      public SomeRandomClass randomClass() {
+        SomeRandomClassParser parser = new SomeRandomClassParser();
+        return parser.fromString("serialized string");
+      }
+    };
+  }
+}

demo/src/main/java/jackfruit/demo/DemoConfig.java

@@ -46,7 +46,7 @@ import jackfruit.annotations.ParserClass;
  */
 
 @ConfigParams(prefix = "prefix")
-public interface ConfigTemplate {
+public interface DemoConfig {
 
   // default key is field name
   @Key("key")

demo/src/main/java/jackfruit/demo/JackfruitDemo.java

@@ -0,0 +1,36 @@
+package jackfruit.demo;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import org.apache.commons.configuration2.PropertiesConfiguration;
+import org.apache.commons.configuration2.ex.ConfigurationException;
+
+public class JackfruitDemo {
+
+  public static void main(String[] args) {
+
+    // this factory is built by the annotation processor after reading the DemoConfig interface
+    DemoConfigFactory factory = new DemoConfigFactory();
+
+    // get an example config object
+    DemoConfig template = factory.getTemplate();
+
+    // generate an Apache PropertiesConfiguration object.  This can be written out to a file
+    PropertiesConfiguration config = factory.toConfig(template);
+
+    try {
+      config.write(new PrintWriter(System.out));
+    } catch (ConfigurationException | IOException e) {
+      e.printStackTrace();
+    }
+
+    // create a config object from an Apache PropertiesConfiguration
+    template = factory.fromConfig(config);
+    
+    System.out.printf("config.StringMethod() = %s\n", template.StringMethod());
+    
+    
+
+  }
+
+}

demo/src/main/java/jackfruit/demo/SomeRandomClass.java

@@ -2,4 +2,14 @@ package jackfruit.demo;
 
 public class SomeRandomClass {
 
+  private String internalString;
+
+  public String getInternalString() {
+    return internalString;
+  }
+
+  public SomeRandomClass(String internalString) {
+    this.internalString = internalString;
+  }
+  
 }

demo/src/main/java/jackfruit/demo/SomeRandomClassParser.java

@@ -1,22 +1,17 @@
 package jackfruit.demo;
 
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import jackfruit.annotations.Parser;
 
 public class SomeRandomClassParser implements Parser<SomeRandomClass> {
 
-  public static Logger logger = LogManager.getLogger();
-
   @Override
   public SomeRandomClass fromString(String s) {
-    logger.info("deserialize SomeRandomClass from " + s);
-    return new SomeRandomClass();
+    return new SomeRandomClass(s);
   }
 
   @Override
   public String toString(SomeRandomClass src) {
-    return "";
+    return src.getInternalString();
   }
 
 

demo/src/test/java/jackfruit/demo/TestProcessor.java

@@ -36,7 +36,7 @@ public class TestProcessor {
     System.out.println(System.getProperty("java.class.path"));
     */
     
-    boolean ignore = true;
+    boolean ignore = false;
     if (!ignore) {
       Log4j2Configurator lc = Log4j2Configurator.getInstance();
       lc.setPattern("%highlight{%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%c{1}:%L] %msg%n%throwable}");