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API to Resolve Dependencies from a Generic Backend
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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2012, Red Hat Middleware LLC, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * Licensed 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.jboss.shrinkwrap.resolver.api;

import java.io.File;

/**
 * Top-level of a configurable resolver system; subtypes may be passed in as an argument to {@link Resolvers#use(Class)}
 * or {@link Resolvers#use(Class, ClassLoader)} to create a new instance.
 *
 * @param 
 *            View type of the {@link ResolverSystem} which does not support configuration
 * @author Andrew Lee Rubinger
 */
public interface ConfigurableResolverSystem> extends ResolverSystem {

    /**
     * Configures this {@link ResolverSystem} from the specified file
     *
     * @param file The file the {@link ResolverSystem} should be configured from
     * @return This configured {@link ResolverSystem}
     * @throws IllegalArgumentException
     *             If the file is not specified, is a directory, or does not exist
     * @throws InvalidConfigurationFileException
     *             If the file is not in correct format
     */
    CONFIGUREDRESOLVERSYSTEMTYPE fromFile(File file) throws IllegalArgumentException, InvalidConfigurationFileException;

    /**
     * Configures this {@link ResolverSystem} from the file at the specified path
     *
     * @param pathToFile Path to the file the {@link ResolverSystem} should be configured from
     * @return This configured {@link ResolverSystem}
     * @throws IllegalArgumentException
     *             If the file is not specified, is a directory, or does not exist
     * @throws InvalidConfigurationFileException
     *             If the file is not in correct format
     */
    CONFIGUREDRESOLVERSYSTEMTYPE fromFile(String pathToFile) throws IllegalArgumentException,
        InvalidConfigurationFileException;

    /**
     * Configures this {@link ResolverSystem} from the result of {@link ClassLoader#getResource(String)} using the
     * current {@link Thread#getContextClassLoader()}
     *
     * @param path Path to the classloader resource
     * @return This configured {@link ResolverSystem}
     * @throws IllegalArgumentException
     *             If the path is not specified or can not be found
     * @throws InvalidConfigurationFileException
     *             If the file is not in correct format
     */
    CONFIGUREDRESOLVERSYSTEMTYPE fromClassloaderResource(String path) throws IllegalArgumentException,
        InvalidConfigurationFileException;

    /**
     * Configures this {@link ResolverSystem} from the result of {@link ClassLoader#getResource(String)} using the
     * specified {@link ClassLoader}
     *
     * @param path Path to the classloader resource
     * @param loader The classloader
     * @return This configured {@link ResolverSystem}
     * @throws IllegalArgumentException
     *             If either argument is not specified or if the path can not be found
     * @throws InvalidConfigurationFileException
     *             If the file is not in correct format
     */
    CONFIGUREDRESOLVERSYSTEMTYPE fromClassloaderResource(String path, ClassLoader loader)
        throws IllegalArgumentException, InvalidConfigurationFileException;
}