| /** |
| * 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.camel.spi; |
| |
| import java.io.InputStream; |
| import java.net.URL; |
| |
| /** |
| * A class resolver for loading classes in a loosly coupled manner to cater for different platforms such |
| * as standalone, web container, j2ee container and OSGi platforms. |
| */ |
| public interface ClassResolver { |
| |
| /** |
| * Resolves the given class by its name |
| * |
| * @param name full qualified name of class |
| * @return the class if resolved, <tt>null</tt> if not found. |
| */ |
| Class<?> resolveClass(String name); |
| |
| /** |
| * Resolves the given class by its name |
| * |
| * @param name full qualified name of class |
| * @param type the expected type of the class |
| * @return the class if resolved, <tt>null</tt> if not found. |
| */ |
| <T> Class<T> resolveClass(String name, Class<T> type); |
| |
| /** |
| * Resolves the given class by its name |
| * |
| * @param name full qualified name of class |
| * @param loader use the provided class loader |
| * @return the class if resolved, <tt>null</tt> if not found. |
| */ |
| Class<?> resolveClass(String name, ClassLoader loader); |
| |
| /** |
| * Resolves the given class by its name |
| * |
| * @param name full qualified name of class |
| * @param type the expected type of the class |
| * @param loader use the provided class loader |
| * @return the class if resolved, <tt>null</tt> if not found. |
| */ |
| <T> Class<T> resolveClass(String name, Class<T> type, ClassLoader loader); |
| |
| /** |
| * Resolves the given class by its name |
| * |
| * @param name full qualified name of class |
| * @return the class if resolved, <tt>null</tt> if not found. |
| * @throws ClassNotFoundException is thrown if class not found |
| */ |
| Class<?> resolveMandatoryClass(String name) throws ClassNotFoundException; |
| |
| /** |
| * Resolves the given class by its name |
| * |
| * @param name full qualified name of class |
| * @param type the expected type of the class |
| * @return the class if resolved, <tt>null</tt> if not found. |
| * @throws ClassNotFoundException is thrown if class not found |
| */ |
| <T> Class<T> resolveMandatoryClass(String name, Class<T> type) throws ClassNotFoundException; |
| |
| /** |
| * Resolves the given class by its name |
| * |
| * @param name full qualified name of class |
| * @param loader use the provided class loader |
| * @return the class if resolved, <tt>null</tt> if not found. |
| * @throws ClassNotFoundException is thrown if class not found |
| */ |
| Class<?> resolveMandatoryClass(String name, ClassLoader loader) throws ClassNotFoundException; |
| |
| /** |
| * Resolves the given class by its name |
| * |
| * @param name full qualified name of class |
| * @param type the expected type of the class |
| * @param loader use the provided class loader |
| * @return the class if resolved, <tt>null</tt> if not found. |
| * @throws ClassNotFoundException is thrown if class not found |
| */ |
| <T> Class<T> resolveMandatoryClass(String name, Class<T> type, ClassLoader loader) throws ClassNotFoundException; |
| |
| /** |
| * Loads the given resource as a stream |
| * |
| * @param uri the uri of the resource |
| * @return as a stream |
| */ |
| InputStream loadResourceAsStream(String uri); |
| |
| /** |
| * Loads the given resource as a URL |
| * |
| * @param uri the uri of the resource |
| * @return as a URL |
| */ |
| URL loadResourceAsURL(String uri); |
| |
| } |