| /* |
| * 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.sling.cms.reference.forms.impl; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.stream.Collectors; |
| |
| import javax.inject.Inject; |
| |
| import org.apache.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.api.resource.ValueMap; |
| import org.apache.sling.api.wrappers.ValueMapDecorator; |
| import org.apache.sling.cms.ResourceTree; |
| import org.apache.sling.cms.reference.forms.FieldHandler; |
| import org.apache.sling.cms.reference.forms.FormException; |
| import org.apache.sling.cms.reference.forms.FormRequest; |
| import org.apache.sling.cms.reference.forms.FormValueProvider; |
| import org.apache.sling.models.annotations.Model; |
| import org.apache.sling.models.annotations.injectorspecific.InjectionStrategy; |
| import org.apache.sling.models.annotations.injectorspecific.OSGiService; |
| import org.apache.sling.models.annotations.injectorspecific.Self; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Implementation of a Form Request |
| */ |
| @Model(adaptables = { SlingHttpServletRequest.class, Resource.class }, adapters = FormRequest.class) |
| public class FormRequestImpl implements FormRequest { |
| |
| private static final Logger log = LoggerFactory.getLogger(FormRequestImpl.class); |
| |
| private final List<FieldHandler> fieldHandlers; |
| |
| private final Map<String, Object> formData = new HashMap<>(); |
| |
| private final SlingHttpServletRequest request; |
| |
| @Inject |
| @SuppressWarnings("unchecked") |
| public FormRequestImpl(@Self SlingHttpServletRequest request, |
| @OSGiService(injectionStrategy = InjectionStrategy.OPTIONAL) List<FormValueProvider> formValueProvider, |
| @OSGiService(injectionStrategy = InjectionStrategy.OPTIONAL) List<FieldHandler> fieldHandlers) { |
| this.request = request; |
| this.fieldHandlers = fieldHandlers; |
| if (request.getSession().getAttribute(this.getSessionId()) != null) { |
| formData.putAll(((Map<String, Object>) request.getSession().getAttribute(this.getSessionId()))); |
| } |
| if (getFormResource() != null && getFormResource().getChild("providers") != null) { |
| loadProviders(formValueProvider); |
| } |
| } |
| |
| private void loadProviders(List<FormValueProvider> formValueProvider) { |
| List<Resource> providers = ResourceTree.stream(getFormResource().getChild("providers")) |
| .map(ResourceTree::getResource).collect(Collectors.toList()); |
| for (Resource provider : providers) { |
| log.debug("Looking for handler for: {}", provider); |
| if (formValueProvider != null) { |
| for (FormValueProvider fvp : formValueProvider) { |
| if (fvp.handles(provider)) { |
| log.debug("Invoking field value provider: {}", fvp.getClass()); |
| fvp.loadValues(request, provider, formData); |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| public ValueMap getFormData() { |
| return new ValueMapDecorator(formData); |
| } |
| |
| @Override |
| public Resource getFormResource() { |
| return request.getResource(); |
| } |
| |
| @Override |
| public SlingHttpServletRequest getOriginalRequest() { |
| return request; |
| } |
| |
| public boolean initFields() { |
| List<Resource> fields = ResourceTree.stream(getFormResource().getChild("fields")).map(ResourceTree::getResource) |
| .collect(Collectors.toList()); |
| boolean successful = true; |
| for (Resource field : fields) { |
| formData.remove(getErrorKey(field)); |
| try { |
| log.debug("Looking for handler for: {}", field); |
| for (FieldHandler fieldHandler : fieldHandlers) { |
| if (fieldHandler.handles(field)) { |
| log.debug("Invoking field handler: {}", fieldHandler.getClass()); |
| fieldHandler.handleField(request, field, formData); |
| break; |
| } |
| } |
| } catch (FormException fe) { |
| log.warn("Failed to populate field {} due to exception", field, fe); |
| successful = false; |
| formData.put(getErrorKey(field), fe.getMessage()); |
| } |
| } |
| return successful; |
| } |
| |
| private String getErrorKey(Resource field) { |
| return "fielderror-" + field.getValueMap().get("name", String.class); |
| } |
| |
| @Override |
| public String getSessionId() { |
| return "errorval-" + Optional.ofNullable(getFormResource()).map(Resource::getPath).orElse("null"); |
| } |
| |
| } |