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Auto mapper binding (#1807)

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Bind mapper implementations automatically to related mappers using the annotation processor. With this change it is not longer required to bind mapper explicitly using mapper modules which reduces some boilerplate code.
This commit is contained in:
Eduard Heimbuch
2021-09-14 09:26:47 +02:00
committed by GitHub
parent e1ff57e0a9
commit 8a65660278
7 changed files with 133 additions and 423 deletions
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36
scm-annotation-processor/src/main/java/sonia/scm/annotation/ScmAnnotationProcessor.java
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@@ -24,46 +24,26 @@
package sonia.scm.annotation;
//~--- non-JDK imports --------------------------------------------------------
import com.github.legman.Subscribe;
import com.google.common.base.Throwables;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import org.kohsuke.MetaInfServices;
import org.mapstruct.Mapper;
import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
import sonia.scm.annotation.ClassSetElement.ClassWithAttributes;
import sonia.scm.plugin.PluginAnnotation;
import sonia.scm.plugin.Requires;
//~--- JDK imports ------------------------------------------------------------
import java.io.File;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import javax.annotation.processing.AbstractProcessor;
import javax.annotation.processing.Filer;
import javax.annotation.processing.Processor;
import javax.annotation.processing.RoundEnvironment;
import javax.annotation.processing.SupportedAnnotationTypes;
import javax.annotation.processing.SupportedSourceVersion;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.AnnotationValue;
@@ -72,14 +52,11 @@ import javax.lang.model.element.ElementKind;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.VariableElement;
import javax.tools.Diagnostic.Kind;
import javax.tools.FileObject;
import javax.tools.StandardLocation;
import javax.ws.rs.Path;
import javax.ws.rs.ext.Provider;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
@@ -91,6 +68,14 @@ import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.io.File;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import static javax.lang.model.util.ElementFilter.methodsIn;
@@ -112,7 +97,8 @@ public final class ScmAnnotationProcessor extends AbstractProcessor {
ImmutableSet.of(Subscribe.class.getName());
private static final Set<ClassAnnotation> CLASS_ANNOTATIONS =
ImmutableSet.of(new ClassAnnotation("rest-resource", Path.class),
new ClassAnnotation("rest-provider", Provider.class));
new ClassAnnotation("rest-provider", Provider.class),
new ClassAnnotation("mapper", Mapper.class));
@Override
public boolean process(Set<? extends TypeElement> annotations,