| /* |
| * 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.syncope.client.enduser.init; |
| |
| import java.lang.reflect.Modifier; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Objects; |
| import org.apache.commons.lang3.ArrayUtils; |
| import org.apache.syncope.client.enduser.pages.BasePage; |
| import org.apache.syncope.client.ui.commons.annotations.BinaryPreview; |
| import org.apache.syncope.client.ui.commons.annotations.ExtPage; |
| import org.apache.syncope.client.ui.commons.annotations.Resource; |
| import org.apache.syncope.client.ui.commons.markup.html.form.preview.BinaryPreviewer; |
| import org.apache.syncope.client.ui.commons.panels.BaseSSOLoginFormPanel; |
| import org.apache.wicket.request.resource.AbstractResource; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider; |
| import org.springframework.core.type.filter.AssignableTypeFilter; |
| import org.springframework.util.ClassUtils; |
| |
| public class ClassPathScanImplementationLookup { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(ClassPathScanImplementationLookup.class); |
| |
| private static final String DEFAULT_BASE_PACKAGE = "org.apache.syncope"; |
| |
| private List<Class<? extends BaseSSOLoginFormPanel>> ssoLoginFormPanels; |
| |
| private List<Class<? extends AbstractResource>> resources; |
| |
| private List<Class<? extends BinaryPreviewer>> previewers; |
| |
| private List<Class<? extends BasePage>> extPages; |
| |
| /** |
| * This method can be overridden by subclasses to customize classpath scan. |
| * |
| * @return basePackage for classpath scanning |
| */ |
| protected static String getBasePackage() { |
| return DEFAULT_BASE_PACKAGE; |
| } |
| |
| @SuppressWarnings({ "unchecked", "unchecked" }) |
| public void load() { |
| previewers = new ArrayList<>(); |
| extPages = new ArrayList<>(); |
| ssoLoginFormPanels = new ArrayList<>(); |
| resources = new ArrayList<>(); |
| |
| ClassPathScanningCandidateComponentProvider scanner = new ClassPathScanningCandidateComponentProvider(false); |
| scanner.addIncludeFilter(new AssignableTypeFilter(AbstractResource.class)); |
| scanner.addIncludeFilter(new AssignableTypeFilter(BasePage.class)); |
| scanner.addIncludeFilter(new AssignableTypeFilter(BaseSSOLoginFormPanel.class)); |
| scanner.addIncludeFilter(new AssignableTypeFilter(BinaryPreviewer.class)); |
| |
| scanner.findCandidateComponents(getBasePackage()).forEach(bd -> { |
| try { |
| Class<?> clazz = ClassUtils.resolveClassName(Objects.requireNonNull(bd.getBeanClassName()), |
| ClassUtils.getDefaultClassLoader()); |
| boolean isAbstractClazz = Modifier.isAbstract(clazz.getModifiers()); |
| if (!isAbstractClazz) { |
| if (BasePage.class.isAssignableFrom(clazz)) { |
| if (clazz.isAnnotationPresent(ExtPage.class)) { |
| extPages.add((Class<? extends BasePage>) clazz); |
| } else { |
| LOG.error("Could not find annotation {} in {}, ignoring", |
| ExtPage.class.getName(), clazz.getName()); |
| } |
| } else if (AbstractResource.class.isAssignableFrom(clazz)) { |
| if (clazz.isAnnotationPresent(Resource.class)) { |
| resources.add((Class<? extends AbstractResource>) clazz); |
| } else { |
| LOG.error("Could not find annotation {} in {}, ignoring", |
| Resource.class.getName(), clazz.getName()); |
| } |
| } else if (BinaryPreviewer.class.isAssignableFrom(clazz)) { |
| previewers.add((Class<? extends BinaryPreviewer>) clazz); |
| } else if (BaseSSOLoginFormPanel.class.isAssignableFrom(clazz)) { |
| ssoLoginFormPanels.add((Class<? extends BaseSSOLoginFormPanel>) clazz); |
| } |
| } |
| } catch (Throwable t) { |
| LOG.warn("Could not inspect class {}", bd.getBeanClassName(), t); |
| } |
| }); |
| resources = Collections.unmodifiableList(resources); |
| |
| ssoLoginFormPanels = Collections.unmodifiableList(ssoLoginFormPanels); |
| |
| LOG.debug("Binary previewers found: {}", previewers); |
| LOG.debug("Extension pages found: {}", extPages); |
| LOG.debug("SSO Login pages found: {}", ssoLoginFormPanels); |
| LOG.debug("Wicket Resources found: {}", resources); |
| } |
| |
| public Class<? extends BinaryPreviewer> getPreviewerClass(final String mimeType) { |
| LOG.debug("Searching for previewer class for MIME type: {}", mimeType); |
| Class<? extends BinaryPreviewer> previewer = null; |
| for (Class<? extends BinaryPreviewer> candidate : previewers) { |
| LOG.debug("Evaluating previewer class {} for MIME type {}", candidate.getName(), mimeType); |
| if (candidate.isAnnotationPresent(BinaryPreview.class) |
| && ArrayUtils.contains(candidate.getAnnotation(BinaryPreview.class).mimeTypes(), mimeType)) { |
| LOG.debug("Found existing previewer for MIME type {}: {}", mimeType, candidate.getName()); |
| previewer = candidate; |
| } |
| } |
| return previewer; |
| } |
| |
| public List<Class<? extends AbstractResource>> getResources() { |
| return resources; |
| } |
| |
| public List<Class<? extends BaseSSOLoginFormPanel>> getSSOLoginFormPanels() { |
| return this.ssoLoginFormPanels; |
| } |
| |
| public List<Class<? extends BasePage>> getExtPageClasses() { |
| return extPages; |
| } |
| } |