Options: WithMessageFormatter, WithSubstitutors

pom.xml

@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>de.kreth.property2java</groupId>
 	<artifactId>PropertyToJavaGenerator</artifactId>
-	<version>3.0.0-SNAPSHOT</version>
+	<version>3.0.1-SNAPSHOT</version>
 
 	<properties>
 
@@ -151,5 +151,6 @@
 	<scm>
 		<developerConnection>scm:git:git@github.com:markuskreth/PropertyToJavaGenerator.gitt</developerConnection>
 		<connection>scm:git:git@github.com:markuskreth/PropertyToJavaGenerator.git</connection>
+    <tag>PropertyToJavaGenerator-3.0.0</tag>
   </scm>
 </project>

src/main/java/de/kreth/property2java/Format.java

@@ -1,5 +1,6 @@
 package de.kreth.property2java;
 
+import java.util.Properties;
 import java.util.PropertyResourceBundle;
 
 public enum Format {
@@ -7,21 +8,25 @@ public enum Format {
 	/**
 	 * Offers a getString(UnaryOperator resourceFunction) method to access the
 	 * String value
+	 * <p>An accessor to the resource is needed, for example {@link Properties#getProperty(String)}
 	 */
 	WithUnaryOperatorParameter,
+	/**
+	 * Offers a static init(UnaryOperator resourceFunction) method to offer a
+	 * getText() method. The init method must be called before any getText() call.
+	 */
+	WithInitializer,
 	/**
 	 * Generates {@link PropertyResourceBundle} to offer a getText() method without
-	 * parameters.
+	 * parameters. It is initialized automatically
+	 * <p>The generated class supports localized property files by using {@link java.util.ResourceBundle}
+	 * @see {@link java.util.ResourceBundle} for supported format and file names.
 	 */
 	WithInnerPropertyResourceBundle,
 	/**
-	 * Offers a generated {@link PropertyResourceBundle} to offer a getText() method
-	 * without parameters.
+	 * Generates {@link Properties} to offer a getText() method
+	 * without parameters. It is initialized automatically
+	 * <p>The property file is loaded as {@link Class#getResourceAsStream(String)}
 	 */
 	WithInnerPropertyLoader,
-	/**
-	 * Offers a static init(UnaryOperator resourceFunction) method to offer a
-	 * getText() method. The init method must be called before any getText() call.
-	 */
-	WithInitializer
 }

src/main/java/de/kreth/property2java/Generator.java

@@ -7,6 +7,7 @@ import java.io.Writer;
 import java.net.URL;
 import java.text.DateFormat;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.Date;
 import java.util.Enumeration;
@@ -14,6 +15,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
+import java.util.stream.Collectors;
 
 import de.kreth.property2java.cli.ArgumentConfiguration;
 import de.kreth.property2java.config.FreemarkerConfig;
@@ -66,6 +68,13 @@ public class Generator {
 		root.put("classname", config.mapFilenameToClassName(fileName));
 		if (config.getOptions().isEmpty() == false) {
 			root.put("options", config.getOptions());
+			List<String> imports = config.getOptions().stream()
+					.map(GeneratorOptions::getAdditionalImport)
+					.flatMap(Arrays::stream)
+					.collect(Collectors.toList());
+			if (imports.isEmpty() == false) {
+				root.put("imports", imports);
+			}
 		}
 
 		List<Entry> entries = new ArrayList<>();

src/main/java/de/kreth/property2java/GeneratorOptions.java

@@ -1,5 +1,24 @@
 package de.kreth.property2java;
 
+import java.text.MessageFormat;
+
 public enum GeneratorOptions {
-	WithSubstitutors
+	/**
+	 * 
+	 */
+	WithSubstitutors,
+	/**
+	 * Add a format Method, which uses and supports {@link MessageFormat}. 
+	 */
+	WithMessageFormatter("java.text.MessageFormat");
+	
+	private final String[] additionalImport;
+
+	private GeneratorOptions(String... additionalImport) {
+		this.additionalImport = additionalImport!= null ? additionalImport : new String[] {};
+	}
+	
+	String[] getAdditionalImport() {
+		return additionalImport;
+	}
 }

src/main/java/de/kreth/property2java/processor/GenerateProperty2Java.java

@@ -7,6 +7,7 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 import de.kreth.property2java.Format;
+import de.kreth.property2java.GeneratorOptions;
 
 @Target(TYPE)
 @Retention(RetentionPolicy.SOURCE)
@@ -15,6 +16,8 @@ import de.kreth.property2java.Format;
  * muss nur die Abhängigkeit eingebunden werden und die Annotation in einer
  * Klasse verwendet werden, in deren Package die neuen Klassen generiert werden.
  *
+ * 
+ * 
  * Für die Ausgabe der Prozessornachrichten muss folgendes im maven compiler
  * konfiguriert werden:
  *
@@ -41,4 +44,6 @@ public @interface GenerateProperty2Java {
 	String[] resources();
 
 	Format format() default Format.WithUnaryOperatorParameter;
+
+	GeneratorOptions[] options() default {};
 }

src/main/java/de/kreth/property2java/processor/GenerateResourceBundleProperty2Java.java

@@ -8,6 +8,7 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 import de.kreth.property2java.Format;
+import de.kreth.property2java.GeneratorOptions;
 
 @Target(TYPE)
 @Retention(RetentionPolicy.SOURCE)
@@ -45,4 +46,6 @@ public @interface GenerateResourceBundleProperty2Java {
 	String resource();
 
 	Format format();
+	
+	GeneratorOptions[] options() default {};
 }

src/main/java/de/kreth/property2java/processor/GenerateResourceBundleProperty2Javas.java

@@ -15,7 +15,7 @@ import java.lang.annotation.Target;
  */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.RUNTIME)
-@interface GenerateResourceBundleProperty2Javas {
+public @interface GenerateResourceBundleProperty2Javas {
 
 	GenerateResourceBundleProperty2Java[] value();
 }

src/main/java/de/kreth/property2java/processor/ProcessorConfiguration.java

@@ -6,6 +6,7 @@ import java.io.Writer;
 import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -22,6 +23,7 @@ import de.kreth.property2java.Configuration;
 import de.kreth.property2java.Format;
 import de.kreth.property2java.Generator;
 import de.kreth.property2java.GeneratorException;
+import de.kreth.property2java.GeneratorOptions;
 
 public class ProcessorConfiguration implements Configuration {
 
@@ -29,11 +31,13 @@ public class ProcessorConfiguration implements Configuration {
 	private final Element element;
 	private final Map<String, Reader> input;
 	private final Format format;
+	private final GeneratorOptions[] options;
 
 	ProcessorConfiguration(Builder builder) throws IOException {
 		this.filer = builder.filer;
 		this.element = builder.element;
 		this.format = Objects.requireNonNullElse(builder.format, Format.WithUnaryOperatorParameter);
+		this.options = builder.options;
 		this.input = new HashMap<>();
 		for (String resource : builder.resourcenames) {
 			FileObject ressource = filer.getResource(StandardLocation.CLASS_PATH, "", resource);
@@ -63,6 +67,11 @@ public class ProcessorConfiguration implements Configuration {
 		return input;
 	}
 
+	@Override
+	public EnumSet<GeneratorOptions> getOptions() {
+		return EnumSet.copyOf(Arrays.asList(options));
+	}
+	
 	@Override
 	public Path getRootPath() {
 		throw new UnsupportedOperationException(
@@ -83,6 +92,7 @@ public class ProcessorConfiguration implements Configuration {
 	}
 
 	static class Builder {
+		public GeneratorOptions[] options;
 		private final Filer filer;
 		private final Element element;
 		private final List<String> resourcenames;
@@ -99,6 +109,11 @@ public class ProcessorConfiguration implements Configuration {
 			return this;
 		}
 
+		public Builder withOptions(GeneratorOptions[] options) {
+			this.options = options;
+			return this;
+		}
+		
 		public Builder addAll(String[] resourceNames) {
 			this.resourcenames.addAll(Arrays.asList(resourceNames));
 			return this;

src/main/java/de/kreth/property2java/processor/Property2JavaGenerator.java

@@ -18,6 +18,7 @@ import javax.tools.Diagnostic.Kind;
 
 import de.kreth.property2java.Format;
 import de.kreth.property2java.GeneratorException;
+import de.kreth.property2java.GeneratorOptions;
 
 @SupportedAnnotationTypes({ "de.kreth.property2java.processor.GenerateProperty2Java",
 		"de.kreth.property2java.processor.GenerateResourceBundleProperty2Javas",
@@ -46,7 +47,8 @@ public class Property2JavaGenerator extends AbstractProcessor {
 			GenerateProperty2Java generateAnnotation = element.getAnnotation(GenerateProperty2Java.class);
 			String[] resources = generateAnnotation.resources();
 			Format format = generateAnnotation.format();
-			generateElementProperties(element, Arrays.asList(resources), format);
+			GeneratorOptions[] options = generateAnnotation.options();
+			generateElementProperties(element, Arrays.asList(resources), format, options);
 		}
 	}
 
@@ -63,15 +65,19 @@ public class Property2JavaGenerator extends AbstractProcessor {
 					.getAnnotation(GenerateResourceBundleProperty2Javas.class).value();
 			for (GenerateResourceBundleProperty2Java generateResourceBundleProperty2Java : value) {
 				List<String> resources = Arrays.asList(generateResourceBundleProperty2Java.resource());
-				generateElementProperties(element, resources, generateResourceBundleProperty2Java.format());
+				generateElementProperties(element, resources, generateResourceBundleProperty2Java.format(), generateResourceBundleProperty2Java.options());
 			}
 		}
 	}
 
-	private void generateElementProperties(Element element, List<String> resources, Format format) {
+	private void generateElementProperties(Element element, List<String> resources, Format format, GeneratorOptions[]  options) {
 		processingEnv.getMessager().printMessage(Kind.NOTE, "Generating Java for " + Arrays.asList(resources));
 		try {
-			ProcessorConfiguration.builder(processingEnv.getFiler(), element).addAll(resources).withFormat(format)
+			ProcessorConfiguration
+					.builder(processingEnv.getFiler(), element)
+					.addAll(resources)
+					.withFormat(format)
+					.withOptions(options)
 					.startGeneration();
 		} catch (IOException | GeneratorException e) {
 			StringWriter out = new StringWriter();

src/main/resources/template/enum_template_with_inner_properties.tpl

@@ -3,6 +3,7 @@ import java.io.UncheckedIOException;
 import java.util.Properties;
 
 import javax.annotation.processing.Generated;
+<#include  "parts/additionalImports.tpl">
 
 /**
  * Property keys from ${fileName}

src/main/resources/template/enum_template_with_inner_propertyresourcebundle.tpl

@@ -2,6 +2,7 @@
 import java.util.ResourceBundle;
 
 import javax.annotation.processing.Generated;
+<#include  "parts/additionalImports.tpl">
 
 /**
  * Property keys from ${fileName}
@@ -27,4 +28,5 @@ import javax.annotation.processing.Generated;
 		return bundle.getString(value);
     }
 
+<#include  "parts/withOptions.tpl">
 }

src/main/resources/template/parts/WithMessageFormatter.tpl

@@ -0,0 +1,8 @@
+
+    private MessageFormat messageFormat = null;
+    public String format(Object...objects) {
+    	if (messageFormat == null) {
+    		messageFormat = new MessageFormat(getText());
+    	}
+    	return messageFormat.format(objects, new StringBuffer(), null).toString();
+    }

src/main/resources/template/parts/WithSubstitutors.tpl

@@ -4,7 +4,7 @@
 	 * @return human readable text
 	 */
 	public String getText(Object...objects) {
-		String property = properties.getProperty(value);
+		String property = getText();
 		return doReplacements(property, objects);
 	}
 

src/main/resources/template/parts/additionalImports.tpl

@@ -0,0 +1,4 @@
+<#if imports??><#list imports as e>
+import ${e};
+</#list>;
+</#if>

src/test/java/de/kreth/property2java/generated/GenerateTheTest.java

@@ -18,7 +18,9 @@ import de.kreth.property2java.TestPropertiesSource;
 public class GenerateTheTest {
 
 	public static final String PROPERTY_LOADER_PROPERTIES = "property_loader.properties";
+	public static final String PROPERTY_LOADER_ALLOPTIONS_PROPERTIES = "property_loader_alloptions.properties";
 	public static final String PROPERTY_LOADER_OPTIONS_PROPERTIES = "property_loader_options.properties";
+	public static final String PROPERTY_LOADER_FORMAT_PROPERTIES = "property_loader_format.properties";
 	public static final String UNARY_OPERATOR_PROPERTIES = "unary_operator.properties";
 	public static final String RESOURCE_BUNDLE = "resource_bundle.properties";
 	
@@ -29,7 +31,9 @@ public class GenerateTheTest {
 		withUnaryOperatorParameter(current);
 		withInnerPropertyLoader(current);
 		withResourceBundle(current);
+		withInnerResourceBundleAllOptions(current);
 		withInnerPropertyLoaderAndSubstitutors(current);
+		withInnerResourceBundleAndFormat(current);
 	}
 
 	private static void withResourceBundle(Path current) throws IOException, GeneratorException {
@@ -156,7 +160,84 @@ public class GenerateTheTest {
 			
 			@Override
 			public EnumSet<GeneratorOptions> getOptions() {
-				return EnumSet.allOf(GeneratorOptions.class);
+				return EnumSet.of(GeneratorOptions.WithSubstitutors);
+			}
+			
+			@Override
+			public Map<String, Reader> getInput() {
+				return input;
+			}
+		};
+		Generator generator = new Generator(config);
+		generator.start();
+	}
+
+	private static void withInnerResourceBundleAllOptions(Path current) throws IOException, GeneratorException {
+		Format format = Format.WithInnerPropertyLoader;
+		Map<String, Reader> input = new HashMap<>();
+		input.put(PROPERTY_LOADER_ALLOPTIONS_PROPERTIES, TestPropertiesSource.testProperties());
+
+		System.out.println("Generating: " + PROPERTY_LOADER_ALLOPTIONS_PROPERTIES);
+		
+		Configuration config = new Configuration() {
+			
+			@Override
+			public Path getRootPath() {
+				return current;
+			}
+			
+			@Override
+			public String getPackage() {
+				return "de.kreth.property2java.generated";
+			}
+			
+			@Override
+			public Format getFormat() {
+				return format;
+			}
+			
+			@Override
+			public EnumSet<GeneratorOptions> getOptions() {
+				return EnumSet.of(GeneratorOptions.WithSubstitutors);
+			}
+			
+			@Override
+			public Map<String, Reader> getInput() {
+				return input;
+			}
+		};
+		Generator generator = new Generator(config);
+		generator.start();
+	}
+
+
+	private static void withInnerResourceBundleAndFormat(Path current) throws IOException, GeneratorException {
+		Format format = Format.WithInnerPropertyResourceBundle;
+		Map<String, Reader> input = new HashMap<>();
+		input.put(PROPERTY_LOADER_FORMAT_PROPERTIES, TestPropertiesSource.testProperties());
+
+		System.out.println("Generating: " + PROPERTY_LOADER_FORMAT_PROPERTIES);
+		
+		Configuration config = new Configuration() {
+			
+			@Override
+			public Path getRootPath() {
+				return current;
+			}
+			
+			@Override
+			public String getPackage() {
+				return "de.kreth.property2java.generated";
+			}
+			
+			@Override
+			public Format getFormat() {
+				return format;
+			}
+			
+			@Override
+			public EnumSet<GeneratorOptions> getOptions() {
+				return EnumSet.of(GeneratorOptions.WithMessageFormatter);
 			}
 			
 			@Override

src/test/java/de/kreth/property2java/generated/Property_Loader_Alloptions_Properties.java

@@ -0,0 +1,203 @@
+package de.kreth.property2java.generated;
+
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.util.Properties;
+
+import javax.annotation.processing.Generated;
+
+/**
+ * Property keys from property_loader_alloptions.properties
+ */
+
+@Generated(date = "25.01.2025, 23:42:57", value = "de.kreth.property2java.Generator")
+public enum Property_Loader_Alloptions_Properties {
+
+	/**
+	 * label = ""
+	 */
+	LABEL ("label"),
+	/**
+	 * label.addarticle = "Add Article"
+	 */
+	LABEL_ADDARTICLE ("label.addarticle"),
+	/**
+	 * label.cancel = "Cancel"
+	 */
+	LABEL_CANCEL ("label.cancel"),
+	/**
+	 * label.close = "Close"
+	 */
+	LABEL_CLOSE ("label.close"),
+	/**
+	 * label.delete = "Delete"
+	 */
+	LABEL_DELETE ("label.delete"),
+	/**
+	 * label.discart = "Discart"
+	 */
+	LABEL_DISCART ("label.discart"),
+	/**
+	 * label.loggedin = "Logged in:"
+	 */
+	LABEL_LOGGEDIN ("label.loggedin"),
+	/**
+	 * label.logout = "Logout"
+	 */
+	LABEL_LOGOUT ("label.logout"),
+	/**
+	 * label.ok = "OK"
+	 */
+	LABEL_OK ("label.ok"),
+	/**
+	 * label.open = "Open"
+	 */
+	LABEL_OPEN ("label.open"),
+	/**
+	 * label.preview = "Preview"
+	 */
+	LABEL_PREVIEW ("label.preview"),
+	/**
+	 * label.store = "Store"
+	 */
+	LABEL_STORE ("label.store"),
+	/**
+	 * label.user.register = "Register"
+	 */
+	LABEL_USER_REGISTER ("label.user.register"),
+	/**
+	 * message.article.priceerror = "Please set the price."
+	 */
+	MESSAGE_ARTICLE_PRICEERROR ("message.article.priceerror"),
+	/**
+	 * message.delete.text = "Delete {0}?"
+	 */
+	MESSAGE_DELETE_TEXT ("message.delete.text"),
+	/**
+	 * message.delete.title = "Really delete?"
+	 */
+	MESSAGE_DELETE_TITLE ("message.delete.title"),
+	/**
+	 * message.invoiceitem.allfieldsmustbeset = "Start, end and article must not be 
+                                         empty!"
+	 */
+	MESSAGE_INVOICEITEM_ALLFIELDSMUSTBESET ("message.invoiceitem.allfieldsmustbeset"),
+	/**
+	 * message.invoiceitem.startbeforeend = "End must be later than start."
+	 */
+	MESSAGE_INVOICEITEM_STARTBEFOREEND ("message.invoiceitem.startbeforeend"),
+	/**
+	 * message.user.create.success = "Thanks {0} created!"
+	 */
+	MESSAGE_USER_CREATE_SUCCESS ("message.user.create.success"),
+	/**
+	 * message.user.loginfailure = "Login Error! Wrong user or password?"
+	 */
+	MESSAGE_USER_LOGINFAILURE ("message.user.loginfailure"),
+	/**
+	 * message.user.passwordmissmatch = "Passwords don't match."
+	 */
+	MESSAGE_USER_PASSWORDMISSMATCH ("message.user.passwordmissmatch"),
+	/**
+	 * message.with.five.placeholders = "Third is first{2}, then last "{4}", second={1}, fourth={3} and first is last={0}"
+	 */
+	MESSAGE_WITH_FIVE_PLACEHOLDERS ("message.with.five.placeholders");
+	private Property_Loader_Alloptions_Properties (String value) {
+		this.value = value;
+	}
+
+	private static Properties properties = new Properties();
+	static {
+		try {
+			properties.load(Property_Loader_Alloptions_Properties.class.getResourceAsStream("/property_loader_alloptions.properties"));
+		} catch (IOException e) {
+			throw new UncheckedIOException(e);
+		}
+	}
+	
+	private final String value;
+
+	/**
+	 * Represented Key in property File.
+	 * @return key
+	 */
+	public String getKey() {
+		return value;
+	}
+	/**
+	 * The text for this key from {@link Properties}
+	 * @return human readable text
+	 */
+    public String getText() {
+		return properties.getProperty(value);
+    }
+
+	/**
+	 * The text for this key from {@link Properties} with args as replacements of placeholders.
+	 * <p>Placeholder must be defined as {0}, {1} etc.
+	 * @return human readable text
+	 */
+	public String getText(Object...objects) {
+		String property = properties.getProperty(value);
+		return doReplacements(property, objects);
+	}
+
+	private String doReplacements(String property, Object...objects) {
+		StringBuilder text = new StringBuilder();
+		int index = property.indexOf('{');
+		text.append(property.substring(0, index));
+		
+		while (index >= 0) {
+			index++;
+			int endIndex = withEndIndex(index, property);
+			if (endIndex >0) {
+				String theIndex = property.substring(index, endIndex);
+				int withIndex = Integer.valueOf(theIndex);
+				if (withIndex+1> objects.length) {
+					throw new IllegalStateException("No Argument for Index {" + theIndex
+							+ "}" + " at Position=" + (index - 1) + " in \"" + property + "\"");
+				}
+				text.append(objects[withIndex].toString());
+				index = property.indexOf('{', endIndex);
+				if (index <0) {
+					text.append(property.substring(endIndex + 1));
+				} else {
+					text.append(property.substring(endIndex + 1, index));
+				}
+			} else {
+				endIndex = index;
+				
+				index = property.indexOf('{', index);
+				if (index <0) {
+					text.append('{');
+					text.append(property.substring(endIndex));
+				}
+			}
+		}
+		return text.toString();
+	}
+	
+	/**
+	 * extracts the end index, if (and only if) the closing } exists and 
+	 * between the indicee an integer value exists. 
+	 * @param index
+	 * @param property
+	 * @return -1 if invalid or not existing
+	 */
+	private int withEndIndex(int index, String property) {
+		
+		int result = -1;
+		int endIndex = property.indexOf('}', index);
+		if (endIndex >index) {
+			String between = property.substring(index, endIndex);
+			if (between.length() > 0) {
+				result = endIndex;
+				for(int i=0; i<between.length(); i++) {
+					if (Character.isDigit(between.charAt(i)) == false) {
+						return -1;
+					}
+				}
+			}
+		}
+		return result;
+	}}

src/test/java/de/kreth/property2java/generated/Property_Loader_Format_Properties.java

@@ -0,0 +1,138 @@
+package de.kreth.property2java.generated;
+
+import java.util.PropertyResourceBundle;
+import java.util.ResourceBundle;
+
+import javax.annotation.processing.Generated;
+import java.text.MessageFormat;
+;
+
+/**
+ * Property keys from property_loader_format.properties
+ * {@link #getValue()} gives the key for the entry, with {@link #getText()} the value for the key is given directly.
+ * Initializationis generated also.
+ */
+
+@Generated(date = "25.01.2025, 23:42:57", value = "de.kreth.property2java.Generator")
+public enum Property_Loader_Format_Properties {
+
+	/**
+	 * label = ""
+	 */
+	LABEL ("label"),
+	/**
+	 * label.addarticle = "Add Article"
+	 */
+	LABEL_ADDARTICLE ("label.addarticle"),
+	/**
+	 * label.cancel = "Cancel"
+	 */
+	LABEL_CANCEL ("label.cancel"),
+	/**
+	 * label.close = "Close"
+	 */
+	LABEL_CLOSE ("label.close"),
+	/**
+	 * label.delete = "Delete"
+	 */
+	LABEL_DELETE ("label.delete"),
+	/**
+	 * label.discart = "Discart"
+	 */
+	LABEL_DISCART ("label.discart"),
+	/**
+	 * label.loggedin = "Logged in:"
+	 */
+	LABEL_LOGGEDIN ("label.loggedin"),
+	/**
+	 * label.logout = "Logout"
+	 */
+	LABEL_LOGOUT ("label.logout"),
+	/**
+	 * label.ok = "OK"
+	 */
+	LABEL_OK ("label.ok"),
+	/**
+	 * label.open = "Open"
+	 */
+	LABEL_OPEN ("label.open"),
+	/**
+	 * label.preview = "Preview"
+	 */
+	LABEL_PREVIEW ("label.preview"),
+	/**
+	 * label.store = "Store"
+	 */
+	LABEL_STORE ("label.store"),
+	/**
+	 * label.user.register = "Register"
+	 */
+	LABEL_USER_REGISTER ("label.user.register"),
+	/**
+	 * message.article.priceerror = "Please set the price."
+	 */
+	MESSAGE_ARTICLE_PRICEERROR ("message.article.priceerror"),
+	/**
+	 * message.delete.text = "Delete {0}?"
+	 */
+	MESSAGE_DELETE_TEXT ("message.delete.text"),
+	/**
+	 * message.delete.title = "Really delete?"
+	 */
+	MESSAGE_DELETE_TITLE ("message.delete.title"),
+	/**
+	 * message.invoiceitem.allfieldsmustbeset = "Start, end and article must not be 
+                                         empty!"
+	 */
+	MESSAGE_INVOICEITEM_ALLFIELDSMUSTBESET ("message.invoiceitem.allfieldsmustbeset"),
+	/**
+	 * message.invoiceitem.startbeforeend = "End must be later than start."
+	 */
+	MESSAGE_INVOICEITEM_STARTBEFOREEND ("message.invoiceitem.startbeforeend"),
+	/**
+	 * message.user.create.success = "Thanks {0} created!"
+	 */
+	MESSAGE_USER_CREATE_SUCCESS ("message.user.create.success"),
+	/**
+	 * message.user.loginfailure = "Login Error! Wrong user or password?"
+	 */
+	MESSAGE_USER_LOGINFAILURE ("message.user.loginfailure"),
+	/**
+	 * message.user.passwordmissmatch = "Passwords don't match."
+	 */
+	MESSAGE_USER_PASSWORDMISSMATCH ("message.user.passwordmissmatch"),
+	/**
+	 * message.with.five.placeholders = "Third is first{2}, then last "{4}", second={1}, fourth={3} and first is last={0}"
+	 */
+	MESSAGE_WITH_FIVE_PLACEHOLDERS ("message.with.five.placeholders");
+    private static ResourceBundle bundle = PropertyResourceBundle.getBundle("property_loader_format");
+
+	private final String value;
+
+	private Property_Loader_Format_Properties (String value) {
+		this.value = value;
+	}
+
+	/**
+	 * Represented Key in property File.
+	 * @return key
+	 */
+	public String getKey() {
+		return value;
+	}
+	/**
+	 * The Text for this Key from PropertyResourceBundle
+	 * @return human readable text
+	 */
+    public String getText() {
+		return bundle.getString(value);
+    }
+
+
+    private MessageFormat messageFormat = null;
+    public String format(Object...objects) {
+    	if (messageFormat == null) {
+    		messageFormat = new MessageFormat(getText());
+    	}
+    	return messageFormat.format(objects, new StringBuffer(), null).toString();
+    }}

src/test/java/de/kreth/property2java/generated/Property_Loader_Options_Properties.java

@@ -10,7 +10,7 @@ import javax.annotation.processing.Generated;
  * Property keys from property_loader_options.properties
  */
 
-@Generated(date = "06.08.2024, 23:03:48", value = "de.kreth.property2java.Generator")
+@Generated(date = "25.01.2025, 23:42:57", value = "de.kreth.property2java.Generator")
 public enum Property_Loader_Options_Properties {
 
 	/**

src/test/java/de/kreth/property2java/generated/Property_Loader_Properties.java

@@ -10,7 +10,7 @@ import javax.annotation.processing.Generated;
  * Property keys from property_loader.properties
  */
 
-@Generated(date = "06.08.2024, 23:03:48", value = "de.kreth.property2java.Generator")
+@Generated(date = "25.01.2025, 23:42:57", value = "de.kreth.property2java.Generator")
 public enum Property_Loader_Properties {
 
 	/**

src/test/java/de/kreth/property2java/generated/Resource_Bundle_Properties.java

@@ -11,7 +11,7 @@ import javax.annotation.processing.Generated;
  * Initializationis generated also.
  */
 
-@Generated(date = "06.08.2024, 23:03:48", value = "de.kreth.property2java.Generator")
+@Generated(date = "25.01.2025, 23:42:57", value = "de.kreth.property2java.Generator")
 public enum Resource_Bundle_Properties {
 
 	/**

src/test/java/de/kreth/property2java/generated/TestRealGenerated.java

@@ -15,10 +15,16 @@ public class TestRealGenerated {
 	void resourceBundle() {
 		assertEquals("Login Error! Wrong user or password?", Resource_Bundle_Properties.MESSAGE_USER_LOGINFAILURE.getText());
 	}
-	
+
 	@Test
 	void substitution() {
 		String text = Property_Loader_Options_Properties.MESSAGE_WITH_FIVE_PLACEHOLDERS.getText("|R1|", "|R2|", "|R3|", "|R4|", "|R5|");
 		assertEquals("Third is first|R3|, then last \"|R5|\", second=|R2|, fourth=|R4| and first is last=|R1|", text);
 	}
+	
+	@Test
+	void formatter() {
+		String text = Property_Loader_Format_Properties.MESSAGE_WITH_FIVE_PLACEHOLDERS.format("|R1|", "|R2|", "|R3|", "|R4|", "|R5|");
+		assertEquals("Third is first|R3|, then last \"|R5|\", second=|R2|, fourth=|R4| and first is last=|R1|", text);
+	}
 }

src/test/java/de/kreth/property2java/generated/Unary_Operator_Properties.java

@@ -12,7 +12,7 @@ import javax.annotation.processing.Generated;
  * the value is given directly.
  */
 
-@Generated(date = "06.08.2024, 23:03:48", value = "de.kreth.property2java.Generator")
+@Generated(date = "25.01.2025, 23:42:57", value = "de.kreth.property2java.Generator")
 public enum Unary_Operator_Properties {
 
 	/**

src/test/resources/property_loader_format.properties

@@ -0,0 +1,25 @@
+
+label = 
+
+label.addarticle    = Add Article
+label.cancel        = Cancel
+label.close         = Close
+label.delete        = Delete
+label.discart       = Discart
+label.loggedin      = Logged in:
+label.logout        = Logout
+label.ok            = OK
+label.store         = Store
+label.preview       = Preview
+label.open          = Open
+label.user.register = Register
+
+message.article.priceerror             = Please set the price.
+message.delete.text                    = Delete {0}?
+message.delete.title                   = Really delete?
+message.invoiceitem.allfieldsmustbeset = Start, end and article must not be \r\n                                         empty!
+message.invoiceitem.startbeforeend     = End must be later than start.
+message.user.create.success            = Thanks {0} created!
+message.user.loginfailure              = Login Error! Wrong user or password?
+message.user.passwordmissmatch         = Passwords don't match.
+message.with.five.placeholders         = Third is first{2}, then last "{4}", second={1}, fourth={3} and first is last={0}