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A module that provides Testify's annotations
There is a newer version: 1.0.6
/*
 * Copyright 2016-2017 Testify Project.
 *
 * 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.testifyproject;

import java.util.Set;
import org.testifyproject.annotation.VirtualResource;
import org.testifyproject.trait.PropertiesReader;

/**
 * A contract that defines methods to configure, start an stop a virtual
 * resource.
 *
 * @author saden
 * @param  the type virtual resource configuration object
 */
public interface VirtualResourceProvider {

    /**
     * 
     * A method to configure a virtual resource. Configuring a virtual resource
     * typically involves creating a default configuration object that can be
     * further configured by a
     * {@link org.testifyproject.annotation.ConfigHandler} method. Please note:
     * 
     * 
     * Implementation of this method should not do any work beyond returning
     * configuration object. It should be stateless and should not perform
     * instantiation of the virtual resource as that should be handled in
     * {@link #start(org.testifyproject.TestContext, org.testifyproject.annotation.VirtualResource, java.lang.Object) }
     * method.
     * 
     * 
     * The value of PropertiesReader by default encapsulates
     * {@code .testify.yml} configuration properties. A specific section in
     * {@code .testify.yml} can be specified through {@link VirtualResource#configKey()
     * }.
     * 
     * 
     * The configuration object returned by this method is simply default
     * configuration. It can be updated or replaced with entirely new
     * configuration object by the
     * {@link org.testifyproject.annotation.ConfigHandler} method before it is
     * passed to {@link #start(org.testifyproject.TestContext, org.testifyproject.annotation.VirtualResource, java.lang.Object)
     * } method
     * 
     * 
     *
     * @param testContext the test context
     * @param virtualResource test class virtual resource annotation
     * @param configReader the value of configReader
     * @return the virtual resource configuration object
     */
    T configure(TestContext testContext, VirtualResource virtualResource, PropertiesReader configReader);

    /**
     * Start the virtual resource with the given testContext and configuration.
     *
     * @param testContext the test context
     * @param virtualResource test class virtual resource annotation
     * @param configuration the virtual resource configuration object
     * @return a virtual resource instance
     * @throws java.lang.Exception an exception thrown while starting
     */
    VirtualResourceInstance start(TestContext testContext, VirtualResource virtualResource, T configuration)
            throws Exception;

    /**
     * Load the given list of data file into the local resource prior to the
     * resource being used. Note that by default this method does not have to be
     * implemented.
     *
     * @param testContext the test context
     * @param virtualResource test class remote resource annotation
     * @param instance the virtual resource instance
     * @param dataFiles a data files that should be loaded
     * @throws java.lang.Exception an exception thrown while loading data
     */
    default void load(TestContext testContext,
            VirtualResource virtualResource,
            VirtualResourceInstance instance,
            Set dataFiles)
            throws Exception {
    }

    /**
     * Stop the virtual resource.
     *
     * @param testContext the test context
     * @param virtualResource test class virtual resource annotation
     * @param instance the value of instance
     * @throws java.lang.Exception an exception thrown while stopping
     */
    void stop(TestContext testContext, VirtualResource virtualResource, VirtualResourceInstance instance)
            throws Exception;

}