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* 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.autocomplete.method;
import java.lang.reflect.Array;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import org.apache.isis.core.commons.lang.StringExtensions;
import org.apache.isis.core.metamodel.facetapi.FacetUtil;
import org.apache.isis.core.metamodel.facetapi.FeatureType;
import org.apache.isis.core.metamodel.facets.FacetedMethod;
import org.apache.isis.core.metamodel.facets.FacetedMethodParameter;
import org.apache.isis.core.metamodel.facets.MethodFinderUtils;
import org.apache.isis.core.metamodel.facets.MethodPrefixBasedFacetFactoryAbstract;
import org.apache.isis.core.metamodel.facets.MethodPrefixConstants;
import org.apache.isis.core.metamodel.methodutils.MethodScope;
import org.apache.isis.core.metamodel.services.ServicesInjector;
import org.apache.isis.core.metamodel.services.persistsession.PersistenceSessionServiceInternal;
public class ActionParameterAutoCompleteFacetViaMethodFactory extends MethodPrefixBasedFacetFactoryAbstract {
private static final String[] PREFIXES = {"autoComplete"};
public ActionParameterAutoCompleteFacetViaMethodFactory() {
super(FeatureType.ACTIONS_ONLY, OrphanValidation.VALIDATE, PREFIXES);
}
// ///////////////////////////////////////////////////////
// Actions
// ///////////////////////////////////////////////////////
@Override
public void process(final ProcessMethodContext processMethodContext) {
final FacetedMethod facetedMethod = processMethodContext.getFacetHolder();
final List<FacetedMethodParameter> holderList = facetedMethod.getParameters();
attachAutoCompleteFacetForParametersIfAutoCompleteNumMethodIsFound(processMethodContext, holderList);
}
private void attachAutoCompleteFacetForParametersIfAutoCompleteNumMethodIsFound(final ProcessMethodContext processMethodContext, final List<FacetedMethodParameter> parameters) {
if (parameters.isEmpty()) {
return;
}
final Method actionMethod = processMethodContext.getMethod();
final Class<?>[] params = actionMethod.getParameterTypes();
for (int i = 0; i < params.length; i++) {
final Class<?> paramType = params[i];
final Class<?> arrayOfParamType = (Array.newInstance(paramType, 0)).getClass();
final Class[] returnTypes = { arrayOfParamType, List.class, Set.class, Collection.class };
Method autoCompleteMethod = findAutoCompleteNumMethodReturning(processMethodContext, i, returnTypes);
if (autoCompleteMethod == null) {
continue;
}
processMethodContext.removeMethod(autoCompleteMethod);
// add facets directly to parameters, not to actions
final FacetedMethodParameter paramAsHolder = parameters.get(i);
FacetUtil.addFacet(
new ActionParameterAutoCompleteFacetViaMethod(
autoCompleteMethod, paramType, paramAsHolder,
getDeploymentCategory(), getSpecificationLoader(),
getAuthenticationSessionProvider(), adapterManager));
}
}
private Method findAutoCompleteNumMethodReturning(
final ProcessMethodContext processMethodContext,
final int paramNum,
final Class<?>[] returnTypes) {
final Class<?> cls = processMethodContext.getCls();
final Method actionMethod = processMethodContext.getMethod();
final String capitalizedName = StringExtensions.asCapitalizedName(actionMethod.getName());
final String name = MethodPrefixConstants.AUTO_COMPLETE_PREFIX + paramNum + capitalizedName;
return MethodFinderUtils.findMethod(cls, MethodScope.OBJECT, name, returnTypes, new Class[]{String.class});
}
// ///////////////////////////////////////////////////////////////
// Dependencies
// ///////////////////////////////////////////////////////////////
@Override
public void setServicesInjector(final ServicesInjector servicesInjector) {
super.setServicesInjector(servicesInjector);
adapterManager = servicesInjector.getPersistenceSessionServiceInternal();
}
PersistenceSessionServiceInternal adapterManager;
}