TypicalLengthFacetOnParameterAnnotationFactory.java

/*
 *  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.typicallen.annotation;

import java.lang.annotation.Annotation;

import org.apache.isis.applib.annotation.TypicalLength;
import org.apache.isis.core.commons.config.IsisConfiguration;
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.facetapi.MetaModelValidatorRefiner;
import org.apache.isis.core.metamodel.facets.Annotations;
import org.apache.isis.core.metamodel.facets.FacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.objectvalue.typicallen.TypicalLengthFacet;
import org.apache.isis.core.metamodel.progmodel.DeprecatedMarker;
import org.apache.isis.core.metamodel.services.ServicesInjector;
import org.apache.isis.core.metamodel.specloader.validator.MetaModelValidatorComposite;
import org.apache.isis.core.metamodel.specloader.validator.MetaModelValidatorForDeprecatedAnnotation;

/**
 * @deprecated
 */
@Deprecated
public class TypicalLengthFacetOnParameterAnnotationFactory extends FacetFactoryAbstract implements MetaModelValidatorRefiner, DeprecatedMarker {

    private final MetaModelValidatorForDeprecatedAnnotation validator = new MetaModelValidatorForDeprecatedAnnotation(TypicalLength.class);


    public TypicalLengthFacetOnParameterAnnotationFactory() {
        super(FeatureType.PARAMETERS_ONLY);
    }

    @Override
    public void processParams(final ProcessParameterContext processParameterContext) {
        final Annotation[] parameterAnnotations = Annotations.getParameterAnnotations(processParameterContext.getMethod())[processParameterContext.getParamNum()];
        for (final Annotation parameterAnnotation : parameterAnnotations) {
            if (parameterAnnotation instanceof TypicalLength) {
                final TypicalLength annotation = (TypicalLength) parameterAnnotation;
                final TypicalLengthFacet facet = create(annotation, processParameterContext.getFacetHolder());
                FacetUtil.addFacet(validator.flagIfPresent(facet, processParameterContext));
                return;
            }
        }
    }

    private TypicalLengthFacet create(final TypicalLength annotation, final FacetHolder holder) {
        return annotation != null ? new TypicalLengthFacetOnParameterAnnotation(annotation.value(), holder) : null;
    }

    @Override
    public void refineMetaModelValidator(final MetaModelValidatorComposite metaModelValidator, final IsisConfiguration configuration) {
        metaModelValidator.add(validator);
    }

    @Override
    public void setServicesInjector(final ServicesInjector servicesInjector) {
        super.setServicesInjector(servicesInjector);
        IsisConfiguration configuration = servicesInjector.getConfigurationServiceInternal();
        validator.setConfiguration(configuration);
    }


}