/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.isis.core.metamodel.facets.param.multiline.annotation;
import java.lang.annotation.Annotation;
import org.apache.isis.applib.annotation.MultiLine;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facetapi.FacetUtil;
import org.apache.isis.core.metamodel.facetapi.FeatureType;
import org.apache.isis.core.metamodel.facets.Annotations;
import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.propparam.labelat.LabelAtFacetInferredFromMultiLineFacet;
import org.apache.isis.core.metamodel.facets.propparam.multiline.MultiLineFacet;
public class MultiLineFacetOnParameterAnnotationFactory extends FacetFactoryAbstract {
public MultiLineFacetOnParameterAnnotationFactory() {
super(FeatureType.PARAMETERS_ONLY);
}
@Override
public void processParams(final ProcessParameterContext processParameterContext) {
final Class<?>[] parameterTypes = processParameterContext.getMethod().getParameterTypes();
if (processParameterContext.getParamNum() >= parameterTypes.length) {
// ignore
return;
}
if (!Annotations.isString(parameterTypes[processParameterContext.getParamNum()])) {
return;
}
final Annotation[] parameterAnnotations = Annotations.getParameterAnnotations(processParameterContext.getMethod())[processParameterContext.getParamNum()];
for (final Annotation parameterAnnotation : parameterAnnotations) {
if (parameterAnnotation instanceof MultiLine) {
process(processParameterContext, (MultiLine) parameterAnnotation);
return;
}
}
}
private void process(ProcessParameterContext processParameterContext, MultiLine parameterAnnotation) {
final MultiLine annotation = (MultiLine) parameterAnnotation;
final MultiLineFacet facet = create(annotation, processParameterContext.getFacetHolder());
// no-op if null
FacetUtil.addFacet(facet);
// no-op if null
inferLabelAtFacet(facet);
}
private static void inferLabelAtFacet(MultiLineFacet facet) {
if (facet == null) {
return;
}
FacetUtil.addFacet(new LabelAtFacetInferredFromMultiLineFacet(facet.getFacetHolder()));
}
private MultiLineFacet create(final MultiLine annotation, final FacetHolder holder) {
return (annotation != null) ? new MultiLineFacetOnParameterAnnotation(annotation.numberOfLines(), annotation.preventWrapping(), holder) : null;
}
}