| /* |
| * 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.struts2.config; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import com.opensymphony.xwork2.config.BeanSelectionProvider; |
| import com.opensymphony.xwork2.util.ClassLoaderUtil; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.struts2.config.entities.BeanConfig; |
| import org.apache.struts2.config.entities.BeanSelectionConfig; |
| import org.apache.struts2.config.entities.ConstantConfig; |
| |
| import com.opensymphony.xwork2.config.Configuration; |
| import com.opensymphony.xwork2.config.ConfigurationException; |
| import com.opensymphony.xwork2.config.ConfigurationProvider; |
| import com.opensymphony.xwork2.config.entities.UnknownHandlerConfig; |
| import com.opensymphony.xwork2.config.impl.LocatableFactory; |
| import com.opensymphony.xwork2.config.providers.ValueSubstitutor; |
| import com.opensymphony.xwork2.inject.ContainerBuilder; |
| import com.opensymphony.xwork2.inject.Inject; |
| import com.opensymphony.xwork2.util.location.LocatableProperties; |
| import com.opensymphony.xwork2.util.location.Location; |
| import com.opensymphony.xwork2.util.location.LocationUtils; |
| |
| public class StrutsJavaConfigurationProvider implements ConfigurationProvider { |
| private static final Logger LOG = LogManager.getLogger(StrutsJavaConfigurationProvider.class); |
| |
| private final StrutsJavaConfiguration javaConfig; |
| private Configuration configuration; |
| private boolean throwExceptionOnDuplicateBeans = true; |
| private ValueSubstitutor valueSubstitutor; |
| |
| public StrutsJavaConfigurationProvider(StrutsJavaConfiguration javaConfig) { |
| this.javaConfig = javaConfig; |
| } |
| |
| public void setThrowExceptionOnDuplicateBeans(boolean val) { |
| this.throwExceptionOnDuplicateBeans = val; |
| } |
| |
| @Inject(required = false) |
| public void setValueSubstitutor(ValueSubstitutor valueSubstitutor) { |
| this.valueSubstitutor = valueSubstitutor; |
| } |
| |
| @Override |
| public void register(ContainerBuilder builder, LocatableProperties props) throws ConfigurationException { |
| Map<String, Object> loadedBeans = new HashMap<>(); |
| |
| // bean |
| List<BeanConfig> beanConfigs = javaConfig.beans(); |
| if (beanConfigs != null) { |
| for (BeanConfig bc : beanConfigs) { |
| if (bc != null) { |
| registerBean(loadedBeans, builder, bc); |
| } |
| } |
| } |
| |
| // constant |
| List<ConstantConfig> constantConfigList = javaConfig.constants(); |
| if (constantConfigList != null) { |
| for (ConstantConfig constantConf : constantConfigList) { |
| if (constantConf != null) { |
| Map<String, String> constantMap = constantConf.getAllAsStringsMap(); |
| for (Entry<String, String> entr : constantMap.entrySet()) { |
| if (entr.getKey() != null && entr.getValue() != null) { |
| registerConstant(props, entr.getKey(), entr.getValue()); |
| } |
| } |
| } |
| } |
| } |
| |
| // bean-selection |
| javaConfig.beanSelection().ifPresent(beanSelectionConfig -> { |
| try { |
| LOG.debug("Registering bean selection provider {} of type {}", |
| beanSelectionConfig.getName(), beanSelectionConfig.getClazz().getName()); |
| |
| BeanSelectionProvider provider = beanSelectionConfig.getClazz().newInstance(); |
| provider.register(builder, props); |
| } catch (IllegalAccessException | InstantiationException e) { |
| throw new ConfigurationException("Unable to load : name:" + beanSelectionConfig.getName() |
| + " class:" + beanSelectionConfig.getClazz().getName()); |
| } |
| }); |
| |
| // unknown-handler-stack |
| List<String> unknownHandlers = javaConfig.unknownHandlerStack(); |
| if (unknownHandlers != null) { |
| List<UnknownHandlerConfig> unknownHandlerStack = new ArrayList<>(); |
| for (String unknownHandler : unknownHandlers) { |
| Location location = LocationUtils.getLocation(unknownHandler); |
| unknownHandlerStack.add(new UnknownHandlerConfig(unknownHandler, location)); |
| } |
| |
| if (!unknownHandlerStack.isEmpty()) { |
| configuration.setUnknownHandlerStack(unknownHandlerStack); |
| } |
| } |
| } |
| |
| private void registerConstant(LocatableProperties props, String key, String value) { |
| if (valueSubstitutor != null) { |
| LOG.debug("Substituting value [{}] using [{}]", value, valueSubstitutor.getClass().getName()); |
| value = valueSubstitutor.substitute(value); |
| } |
| |
| props.setProperty(key, value, javaConfig); |
| } |
| |
| private void registerBean(Map<String, Object> loadedBeans, ContainerBuilder containerBuilder, BeanConfig beanConf) { |
| try { |
| if (beanConf.isOnlyStatic()) { |
| // Force loading of class to detect no class def found |
| // exceptions |
| beanConf.getClazz().getDeclaredClasses(); |
| containerBuilder.injectStatics(beanConf.getClazz()); |
| } else { |
| if (containerBuilder.contains(beanConf.getType(), beanConf.getName())) { |
| Location loc = LocationUtils |
| .getLocation(loadedBeans.get(beanConf.getType().getName() + beanConf.getName())); |
| if (throwExceptionOnDuplicateBeans) { |
| throw new ConfigurationException("Bean type " + beanConf.getType() + " with the name " |
| + beanConf.getName() + " has already been loaded by " + loc, javaConfig); |
| } |
| } |
| |
| // Force loading of class to detect no class def found |
| // exceptions |
| beanConf.getClazz().getDeclaredConstructors(); |
| |
| LOG.debug("Loaded type: {} name: {} clazz: {}", beanConf.getType(), beanConf.getName(), |
| beanConf.getClazz()); |
| |
| containerBuilder.factory( |
| beanConf.getType(), |
| beanConf.getName(), |
| new LocatableFactory( |
| beanConf.getName(), beanConf.getType(), beanConf.getClazz(), beanConf.getScope(), javaConfig |
| ), |
| beanConf.getScope()); |
| } |
| loadedBeans.put(beanConf.getType().getName() + beanConf.getName(), javaConfig); |
| } catch (Throwable ex) { |
| if (!beanConf.isOptional()) { |
| throw new ConfigurationException( |
| "Unable to load bean: type:" + beanConf.getType() + " class:" + beanConf.getClazz(), ex); |
| } else { |
| LOG.debug("Unable to load optional class: {}", beanConf.getClazz()); |
| } |
| } |
| } |
| |
| @Override |
| public void init(Configuration configuration) throws ConfigurationException { |
| this.configuration = configuration; |
| } |
| |
| @Override |
| public boolean needsReload() { |
| return false; |
| } |
| |
| @Override |
| public void loadPackages() throws ConfigurationException { |
| } |
| |
| @Override |
| public void destroy() { |
| } |
| } |