| /* |
| * 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 createObject 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.tamaya.validation; |
| |
| import org.apache.tamaya.Configuration; |
| import org.apache.tamaya.ConfigurationSnapshot; |
| import org.apache.tamaya.spi.ServiceContextManager; |
| import org.apache.tamaya.validation.spi.ConfigValidator; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.logging.Logger; |
| |
| /** |
| * Validator manager to validate a configuration. |
| */ |
| public final class ConfigValidation { |
| |
| /** The logger used. */ |
| private static final Logger LOG = Logger.getLogger(ConfigValidation.class.getName()); |
| /** The validators used. */ |
| private List<org.apache.tamaya.validation.spi.ConfigValidator> validators = new ArrayList<>(); |
| |
| /** |
| * Private constructor. |
| */ |
| private ConfigValidation(){} |
| |
| /** |
| * Access a singleton using the default classloader. |
| */ |
| public static ConfigValidation getInstance() { |
| return ServiceContextManager.getServiceContext( |
| ServiceContextManager.getDefaultClassLoader() |
| ).getService(ConfigValidation.class, ConfigValidation::new); |
| } |
| |
| /** |
| * Access a singleton using the given target classloader. |
| * @param classLoader the classloader, not null. |
| */ |
| public static ConfigValidation getInstance(ClassLoader classLoader){ |
| return ServiceContextManager.getServiceContext(classLoader).getService(ConfigValidation.class, ConfigValidation::new); |
| } |
| |
| /** |
| * Add a validator. |
| * @param validator the new validator, not null. |
| */ |
| public void addValidator(ConfigValidator validator){ |
| if(!validators.contains(validator)) { |
| this.validators.add(validator); |
| } |
| } |
| |
| /** |
| * Removes a vlidator. |
| * @param validator the validator, not null. |
| */ |
| public void removeValidator(ConfigValidator validator){ |
| this.validators.remove(validator); |
| } |
| |
| /** |
| * Get the validations defined, using the default classloader. |
| * |
| * @return the sections defined, never null. |
| * @see ServiceContextManager#getDefaultClassLoader() |
| */ |
| public Collection<org.apache.tamaya.validation.spi.ConfigValidator> getValidators() { |
| return getValidators(ServiceContextManager.getDefaultClassLoader()); |
| } |
| |
| /** |
| * Get the validations defined. |
| * |
| * @param classLoader the target classloader, not null. |
| * @return the sections defined, never null. |
| */ |
| public Collection<org.apache.tamaya.validation.spi.ConfigValidator> getValidators(ClassLoader classLoader) { |
| return validators; |
| } |
| |
| /** |
| * Validates the given configuration. |
| * |
| * @param config the configuration to be validated against, not null. |
| * @return the validation results, never null. |
| */ |
| public ValidationResult validate(Configuration config) { |
| ConfigurationSnapshot snapshot = config.getSnapshot(); |
| List<ValidationCheck> result = new ArrayList<>(); |
| for (org.apache.tamaya.validation.spi.ConfigValidator validator : this.validators) { |
| result.addAll(validator.validate(config)); |
| } |
| return new ValidationResult(snapshot, result); |
| } |
| |
| @Override |
| public String toString() { |
| return "ConfigValidation{" + |
| "validators=" + validators + |
| '}'; |
| } |
| } |