#102 sharing mapper configuration and unit test

core/src/main/java/org/mapstruct/Mapper.java

@@ -44,11 +44,12 @@ public @interface Mapper {
 
     /**
      * How unmapped properties of the target type of a mapping should be
-     * reported.
+     * reported. The method overrides an unmappedTargetPolicy set in a central
+     * configuration set by {@link #mapperConfig() }
      *
      * @return The reporting policy for unmapped target properties.
      */
-    ReportingPolicy unmappedTargetPolicy() default ReportingPolicy.WARN;
+    ReportingPolicy unmappedTargetPolicy() default ReportingPolicy.DEFAULT;
 
     /**
      * Specifies the component model to which the generated mapper should
@@ -66,8 +67,18 @@ public @interface Mapper {
      * {@code jsr330}: the generated mapper is annotated with {@code @Named} and
      * can be retrieved via {@code @Inject}</li>
      * </ul>
-     *
+     * The method overrides an unmappedTargetPolicy set in a central configuration set
-     * @return The component model for the generated mapper.
+     * by {@link #mapperConfig() }
+
+* @return The component model for the generated mapper.
      */
     String componentModel() default "default";
+
+    /**
+     * Central mapper configuration, carrying the {@link MapperConfig} annotation
+     *
+     * @return a centralized class with {@link MapperConfig} annotation.
+     */
+    Class<?> mapperConfig() default void.class;
+
 }

core/src/main/java/org/mapstruct/MapperConfig.java

@@ -0,0 +1,76 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.mapstruct.factory.Mappers;
+
+/**
+ * Marks an interface as mapper interface and activates the generation of a
+ * mapper implementation for that interface.
+ *
+ * The {@link #unmappedTargetPolicy() } and {@link #componentModel() } an be overruled by a specific {@link Mapper}
+ * annotation. {@link #uses() } will be used in addition to what is specified in the {@link Mapper} annotation.
+ *
+ * @author Sjaak Derksen
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.SOURCE)
+public @interface MapperConfig {
+
+    /**
+     * The mapper types used by this mapper.
+     *
+     * @return The mapper types used by this mapper.
+     */
+    Class<?>[] uses() default { };
+
+    /**
+     * How unmapped properties of the target type of a mapping should be
+     * reported.
+     *
+     * @return The reporting policy for unmapped target properties.
+     */
+    ReportingPolicy unmappedTargetPolicy() default ReportingPolicy.DEFAULT;
+
+    /**
+     * Specifies the component model to which the generated mapper should
+     * adhere. Supported values are
+     * <ul>
+     * <li> {@code default}: the mapper uses no component model, instances are
+     * typically retrieved via {@link Mappers#getMapper(Class)}</li>
+     * <li>
+     * {@code cdi}: the generated mapper is an application-scoped CDI bean and
+     * can be retrieved via {@code @Inject}</li>
+     * <li>
+     * {@code spring}: the generated mapper is a Spring bean and
+     * can be retrieved via {@code @Autowired}</li>
+     * <li>
+     * {@code jsr330}: the generated mapper is annotated with {@code @Named} and
+     * can be retrieved via {@code @Inject}</li>
+     * </ul>
+     *
+     * @return The component model for the generated mapper.
+     */
+    String componentModel() default "default";
+}

core/src/main/java/org/mapstruct/ReportingPolicy.java

@@ -42,5 +42,12 @@ public enum ReportingPolicy {
      * A report with {@link Kind#ERROR} will be created for the given issue,
      * causing the compilation to fail.
      */
-    ERROR;
+    ERROR,
+
+    /**
+     * A report with {@link Kind#WARNING} will be created for the given issue.
+     *
+     * This value is the default value and used to distinguish it from a user set WARNING level.
+     */
+    DEFAULT;
 }

processor/src/main/java/org/mapstruct/ap/option/ReportingPolicy.java

@@ -29,7 +29,10 @@ import javax.tools.Diagnostic.Kind;
  */
 public enum ReportingPolicy {
 
-    IGNORE( null, false, false ), WARN( Kind.WARNING, true, false ), ERROR( Kind.ERROR, true, true );
+    IGNORE( null, false, false ),
+    WARN( Kind.WARNING, true, false ),
+    ERROR( Kind.ERROR, true, true ),
+    DEFAULT( Kind.WARNING, true, false );
 
     private final Diagnostic.Kind diagnosticKind;
     private final boolean requiresReport;

processor/src/main/java/org/mapstruct/ap/prism/PrismGenerator.java

@@ -26,6 +26,7 @@ import org.mapstruct.DecoratedWith;
 import org.mapstruct.IterableMapping;
 import org.mapstruct.MapMapping;
 import org.mapstruct.Mapper;
+import org.mapstruct.MapperConfig;
 import org.mapstruct.Mapping;
 import org.mapstruct.MappingTarget;
 import org.mapstruct.Mappings;
@@ -45,6 +46,7 @@ import org.mapstruct.TargetType;
     @GeneratePrism(value = TargetType.class, publicAccess = true),
     @GeneratePrism(value = MappingTarget.class, publicAccess = true),
     @GeneratePrism(value = DecoratedWith.class, publicAccess = true),
+    @GeneratePrism(value = MapperConfig.class, publicAccess = true),
 
     // external types
     @GeneratePrism(value = XmlElementDecl.class, publicAccess = true)

processor/src/main/java/org/mapstruct/ap/processor/AnnotationBasedComponentModelProcessor.java

@@ -27,7 +27,7 @@ import org.mapstruct.ap.model.Mapper;
 import org.mapstruct.ap.model.MapperReference;
 import org.mapstruct.ap.model.common.TypeFactory;
 import org.mapstruct.ap.option.OptionsHelper;
-import org.mapstruct.ap.prism.MapperPrism;
+import org.mapstruct.ap.util.MapperSettings;
 
 /**
  * An {@link ModelElementProcessor} which converts the given {@link Mapper}
@@ -45,7 +45,7 @@ public abstract class AnnotationBasedComponentModelProcessor implements ModelEle
     public Mapper process(ProcessorContext context, TypeElement mapperTypeElement, Mapper mapper) {
         this.typeFactory = context.getTypeFactory();
 
-        String componentModel = MapperPrism.getInstanceOn( mapperTypeElement ).componentModel();
+        String componentModel = MapperSettings.getInstanceOn( mapperTypeElement ).componentModel();
         String effectiveComponentModel = OptionsHelper.getEffectiveComponentModel(
             context.getOptions(),
             componentModel

processor/src/main/java/org/mapstruct/ap/processor/MapperCreationProcessor.java

@@ -71,6 +71,7 @@ import org.mapstruct.ap.prism.DecoratedWithPrism;
 import org.mapstruct.ap.prism.MapperPrism;
 import org.mapstruct.ap.util.Executables;
 import org.mapstruct.ap.util.Filters;
+import org.mapstruct.ap.util.MapperSettings;
 import org.mapstruct.ap.util.Strings;
 
 /**
@@ -151,9 +152,9 @@ public class MapperCreationProcessor implements ModelElementProcessor<List<Sourc
      * @return The effective policy for reporting unmapped getReturnType properties.
      */
     private ReportingPolicy getEffectiveUnmappedTargetPolicy(TypeElement element) {
-        MapperPrism mapperPrism = MapperPrism.getInstanceOn( element );
+        MapperSettings mapperSettings = MapperSettings.getInstanceOn( element );
-        boolean setViaAnnotation = mapperPrism.values.unmappedTargetPolicy() != null;
+        boolean setViaAnnotation = mapperSettings.isSetUnmappedTargetPolicy();
-        ReportingPolicy annotationValue = ReportingPolicy.valueOf( mapperPrism.unmappedTargetPolicy() );
+        ReportingPolicy annotationValue = ReportingPolicy.valueOf( mapperSettings.unmappedTargetPolicy() );
 
         if ( setViaAnnotation ||
             options.getUnmappedTargetPolicy() == null ) {
@@ -243,7 +244,7 @@ public class MapperCreationProcessor implements ModelElementProcessor<List<Sourc
         List<MapperReference> mapperReferences = new LinkedList<MapperReference>();
         List<String> variableNames = new LinkedList<String>();
 
-        MapperPrism mapperPrism = MapperPrism.getInstanceOn( element );
+        MapperSettings mapperPrism = MapperSettings.getInstanceOn( element );
 
         for ( TypeMirror usedMapper : mapperPrism.uses() ) {
             DefaultMapperReference mapperReference = DefaultMapperReference.getInstance(

processor/src/main/java/org/mapstruct/ap/processor/MethodRetrievalProcessor.java

@@ -44,10 +44,10 @@ import org.mapstruct.ap.model.source.Mapping;
 import org.mapstruct.ap.model.source.SourceMethod;
 import org.mapstruct.ap.prism.IterableMappingPrism;
 import org.mapstruct.ap.prism.MapMappingPrism;
-import org.mapstruct.ap.prism.MapperPrism;
 import org.mapstruct.ap.prism.MappingPrism;
 import org.mapstruct.ap.prism.MappingsPrism;
 import org.mapstruct.ap.util.AnnotationProcessingException;
+import org.mapstruct.ap.util.MapperSettings;
 
 /**
  * A {@link ModelElementProcessor} which retrieves a list of {@link SourceMethod}s
@@ -98,14 +98,14 @@ public class MethodRetrievalProcessor implements ModelElementProcessor<Void, Lis
 
         //Add all methods of used mappers in order to reference them in the aggregated model
         if ( mapperRequiresImplementation ) {
-            MapperPrism mapperPrism = MapperPrism.getInstanceOn( element );
+            MapperSettings mapperSettings = MapperSettings.getInstanceOn( element );
-            if ( !mapperPrism.isValid ) {
+            if ( !mapperSettings.isValid() ) {
                 throw new AnnotationProcessingException(
-                    "Couldn't retrieve @Mapper annotation", element, mapperPrism.mirror
+                    "Couldn't retrieve @Mapper annotation", element, mapperSettings.getAnnotationMirror()
                 );
             }
 
-            for ( TypeMirror usedMapper : mapperPrism.uses() ) {
+            for ( TypeMirror usedMapper : mapperSettings.uses() ) {
                 methods.addAll(
                     retrieveMethods(
                         (TypeElement) ( (DeclaredType) usedMapper ).asElement(),

processor/src/main/java/org/mapstruct/ap/util/MapperSettings.java

@@ -0,0 +1,108 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.util;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import javax.lang.model.element.AnnotationMirror;
+import javax.lang.model.element.Element;
+import javax.lang.model.type.DeclaredType;
+import javax.lang.model.type.TypeKind;
+import javax.lang.model.type.TypeMirror;
+import org.mapstruct.ap.option.ReportingPolicy;
+import org.mapstruct.ap.prism.MapperConfigPrism;
+import org.mapstruct.ap.prism.MapperPrism;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class MapperSettings {
+
+    private final MapperPrism mapperPrism;
+    private final MapperConfigPrism mapperConfigPrism;
+
+    public static MapperSettings getInstanceOn(Element e) {
+        return new MapperSettings( MapperPrism.getInstanceOn( e ) );
+    }
+
+    public static MapperSettings getInstance(AnnotationMirror mirror ) {
+        return new MapperSettings( MapperPrism.getInstance( mirror ) );
+    }
+
+    private MapperSettings( MapperPrism mapperPrism ) {
+        this.mapperPrism = mapperPrism;
+        TypeMirror typeMirror = mapperPrism.mapperConfig();
+        if ( typeMirror.getKind().equals( TypeKind.DECLARED ) ) {
+            this.mapperConfigPrism = MapperConfigPrism.getInstanceOn( ( (DeclaredType) typeMirror ).asElement() );
+        }
+        else {
+            this.mapperConfigPrism = null;
+        }
+    }
+
+    public List<TypeMirror> uses() {
+        Set<TypeMirror> uses = new HashSet<TypeMirror>( mapperPrism.uses() );
+        if ( mapperConfigPrism != null ) {
+            uses.addAll( mapperConfigPrism.uses() );
+        }
+        return new ArrayList<TypeMirror>( uses );
+    }
+
+    public String unmappedTargetPolicy() {
+        if ( !ReportingPolicy.valueOf( mapperPrism.unmappedTargetPolicy() ).equals( ReportingPolicy.DEFAULT ) ) {
+            // it is not the default configuration
+            return mapperPrism.unmappedTargetPolicy();
+        }
+        else if ( mapperConfigPrism != null &&
+                  !ReportingPolicy.valueOf( mapperConfigPrism.unmappedTargetPolicy())
+                          .equals( ReportingPolicy.DEFAULT ) ) {
+            return mapperConfigPrism.unmappedTargetPolicy();
+        }
+        else {
+            return ReportingPolicy.WARN.name();
+        }
+    }
+
+    public String componentModel() {
+        if ( !mapperPrism.componentModel().equals( "default" ) ) {
+            return mapperPrism.componentModel();
+        }
+        else if ( mapperConfigPrism != null ) {
+            return mapperConfigPrism.componentModel();
+        }
+        else {
+            return "default";
+        }
+    }
+
+    public boolean isValid() {
+        return mapperPrism.isValid;
+    }
+
+    public boolean isSetUnmappedTargetPolicy() {
+        return mapperPrism.values.unmappedTargetPolicy() != null;
+    }
+
+    public AnnotationMirror getAnnotationMirror() {
+        return mapperPrism.mirror;
+    }
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/BarDto.java

@@ -0,0 +1,27 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class BarDto {
+
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/BarEntity.java

@@ -0,0 +1,27 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class BarEntity {
+
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/CentralConfig.java

@@ -0,0 +1,31 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+import org.mapstruct.MapperConfig;
+import org.mapstruct.ReportingPolicy;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+@MapperConfig(uses = { CustomMapperViaMapperConfig.class }, unmappedTargetPolicy = ReportingPolicy.ERROR )
+public class CentralConfig {
+
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/ConfigTest.java

@@ -0,0 +1,86 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+import static org.fest.assertions.Assertions.assertThat;
+import org.mapstruct.ap.testutil.IssueKey;
+import org.mapstruct.ap.testutil.MapperTestBase;
+import org.mapstruct.ap.testutil.WithClasses;
+import org.mapstruct.ap.testutil.compilation.annotation.CompilationResult;
+import org.mapstruct.ap.testutil.compilation.annotation.Diagnostic;
+import org.mapstruct.ap.testutil.compilation.annotation.ExpectedCompilationOutcome;
+import org.testng.annotations.Test;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+@IssueKey( "102" )
+@WithClasses( {
+    Source.class,
+    Target.class,
+    FooDto.class,
+    FooEntity.class,
+    CentralConfig.class,
+    CustomMapperViaMapper.class,
+    CustomMapperViaMapperConfig.class,
+    SourceTargetMapper.class
+} )
+public class ConfigTest extends MapperTestBase {
+
+    @Test
+    @WithClasses( { Target.class, SourceTargetMapper.class } )
+    public void shouldUseCustomMapperViaMapperForFooToEntity() {
+
+        Target target = SourceTargetMapper.INSTANCE.toTarget( new Source( new FooDto() ) );
+        assertThat( target.getFoo() ).isNotNull();
+        assertThat( target.getFoo().getCreatedBy() ).isEqualTo( CustomMapperViaMapper.class.getSimpleName() );
+    }
+
+    @Test
+    @WithClasses( { Target.class, SourceTargetMapper.class } )
+    public void shouldUseCustomMapperViaMapperConfigForFooToDto() {
+
+        Source source = SourceTargetMapper.INSTANCE.toSource( new Target( new FooEntity() ) );
+        assertThat( source.getFoo() ).isNotNull();
+        assertThat( source.getFoo().getCreatedBy() ).isEqualTo( CustomMapperViaMapperConfig.class.getSimpleName() );
+    }
+
+    @Test
+    @WithClasses( { TargetNoFoo.class, SourceTargetMapperWarn.class } )
+    @ExpectedCompilationOutcome(value = CompilationResult.SUCCEEDED,
+        diagnostics = {
+            @Diagnostic(type = SourceTargetMapperWarn.class,
+                kind = javax.tools.Diagnostic.Kind.WARNING, line = 37,
+                messageRegExp = "Unmapped target property: \"noFoo\"")
+        })
+    public void shouldUseWARNViaMapper() {
+    }
+
+    @Test
+    @WithClasses( { TargetNoFoo.class, SourceTargetMapperError.class } )
+    @ExpectedCompilationOutcome(value = CompilationResult.FAILED,
+        diagnostics = {
+            @Diagnostic(type = SourceTargetMapperError.class,
+                kind = javax.tools.Diagnostic.Kind.ERROR, line = 33,
+                messageRegExp = "Unmapped target property: \"noFoo\"")
+        })
+    public void shouldUseERRORViaMapperConfig() {
+    }
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/CustomMapperViaMapper.java

@@ -0,0 +1,30 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class CustomMapperViaMapper {
+
+    public FooEntity toFooEntity( FooDto dto ) {
+        return new FooEntity( this.getClass().getSimpleName() );
+    }
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/CustomMapperViaMapperConfig.java

@@ -0,0 +1,30 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class CustomMapperViaMapperConfig {
+
+    public FooDto toFooDto(FooEntity foo) {
+        return new FooDto( this.getClass().getSimpleName() );
+    }
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/FooDto.java

@@ -0,0 +1,40 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class FooDto {
+
+    private String createdBy;
+
+    public FooDto() {
+    }
+
+    public FooDto( String createdBy ) {
+        this.createdBy = createdBy;
+    }
+
+    public String getCreatedBy() {
+        return createdBy;
+    }
+
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/FooEntity.java

@@ -0,0 +1,40 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class FooEntity {
+
+    private String createdBy;
+
+    public FooEntity() {
+    }
+
+    public FooEntity( String createdBy ) {
+        this.createdBy = createdBy;
+    }
+
+    public String getCreatedBy() {
+        return createdBy;
+    }
+
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/Source.java

@@ -0,0 +1,44 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class Source {
+
+    private FooDto foo;
+
+    public Source( ) {
+    }
+
+    public Source( FooDto foo ) {
+        this.foo = foo;
+    }
+
+    public FooDto getFoo() {
+        return foo;
+    }
+
+    public void setFoo( FooDto foo ) {
+        this.foo = foo;
+    }
+
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/SourceTargetMapper.java

@@ -0,0 +1,35 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.factory.Mappers;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+@Mapper(uses = { CustomMapperViaMapper.class }, mapperConfig = CentralConfig.class )
+public interface SourceTargetMapper {
+
+    SourceTargetMapper INSTANCE = Mappers.getMapper( SourceTargetMapper.class );
+
+    Target toTarget( Source source );
+    Source toSource( Target target );
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/SourceTargetMapperError.java

@@ -0,0 +1,34 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.factory.Mappers;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+@Mapper(uses = { CustomMapperViaMapper.class }, mapperConfig = CentralConfig.class )
+public interface SourceTargetMapperError {
+
+    SourceTargetMapperError INSTANCE = Mappers.getMapper( SourceTargetMapperError.class );
+
+    TargetNoFoo toTarget( Source source );
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/SourceTargetMapperWarn.java

@@ -0,0 +1,38 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+import org.mapstruct.factory.Mappers;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+@Mapper(uses = { CustomMapperViaMapper.class },
+        mapperConfig = CentralConfig.class,
+        unmappedTargetPolicy = ReportingPolicy.WARN
+)
+public interface SourceTargetMapperWarn {
+
+    SourceTargetMapperWarn INSTANCE = Mappers.getMapper( SourceTargetMapperWarn.class );
+
+    TargetNoFoo toTarget( Source source );
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/Target.java

@@ -0,0 +1,44 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class Target {
+
+    private FooEntity foo;
+
+    public Target() {
+    }
+
+    public Target( FooEntity foo ) {
+        this.foo = foo;
+    }
+
+    public FooEntity getFoo() {
+        return foo;
+    }
+
+    public void setFoo( FooEntity foo ) {
+        this.foo = foo;
+    }
+
+}

processor/src/test/java/org/mapstruct/ap/test/mapperconfig/TargetNoFoo.java

@@ -0,0 +1,37 @@
+/**
+ *  Copyright 2012-2014 Gunnar Morling (http://www.gunnarmorling.de/)
+ *  and/or other contributors as indicated by the @authors tag. See the
+ *  copyright.txt file in the distribution for a full listing of all
+ *  contributors.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.mapstruct.ap.test.mapperconfig;
+
+/**
+ *
+ * @author Sjaak Derksen
+ */
+public class TargetNoFoo {
+
+    private FooEntity noFoo;
+
+    public FooEntity getNoFoo() {
+        return noFoo;
+    }
+
+    public void setNoFoo( FooEntity noFoo ) {
+        this.noFoo = noFoo;
+    }
+
+}