/*
* 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.actions.validate.method;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.List;
import org.apache.isis.applib.services.i18n.TranslatableString;
import org.apache.isis.applib.services.i18n.TranslationService;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facets.ImperativeFacet;
import org.apache.isis.core.metamodel.facets.actions.validate.ActionValidationFacetAbstract;
public class ActionValidationFacetViaMethod extends ActionValidationFacetAbstract implements ImperativeFacet {
private final Method method;
private final TranslationService translationService;
private final String translationContext;
public ActionValidationFacetViaMethod(final Method method, final TranslationService translationService, final String translationContext, final FacetHolder holder) {
super(holder);
this.method = method;
this.translationService = translationService;
this.translationContext = translationContext;
}
/**
* Returns a singleton list of the {@link Method} provided in the
* constructor.
*/
@Override
public List<Method> getMethods() {
return Collections.singletonList(method);
}
@Override
public Intent getIntent(final Method method) {
return Intent.CHECK_IF_VALID;
}
@Override
public String invalidReason(final ObjectAdapter owningAdapter, final ObjectAdapter[] proposedArgumentAdapters) {
final Object returnValue = ObjectAdapter.InvokeUtils.invoke(method, owningAdapter, proposedArgumentAdapters);
if(returnValue instanceof String) {
return (String) returnValue;
}
if(returnValue instanceof TranslatableString) {
final TranslatableString ts = (TranslatableString) returnValue;
return ts.translate(translationService, translationContext);
}
return null;
}
@Override
protected String toStringValues() {
return "method=" + method;
}
}