com.vmware.photon.controller.scheduler.helpers.xenon.SchedulerTestEnvironment.java Source code

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Here is the source code for com.vmware.photon.controller.scheduler.helpers.xenon.SchedulerTestEnvironment.java

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/*
 * Copyright 2016 VMware, Inc. All Rights Reserved.
 *
 * 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 com.vmware.photon.controller.scheduler.helpers.xenon;

import com.vmware.photon.controller.common.clients.HostClientFactory;
import com.vmware.photon.controller.common.xenon.CloudStoreHelper;
import com.vmware.photon.controller.common.xenon.MultiHostEnvironment;
import com.vmware.photon.controller.common.xenon.host.PhotonControllerXenonHost;
import com.vmware.photon.controller.common.xenon.host.XenonConfig;
import com.vmware.photon.controller.scheduler.SchedulerConfig;
import com.vmware.photon.controller.scheduler.service.ConstraintChecker;
import com.vmware.photon.controller.scheduler.xenon.SchedulerServiceGroup;

import org.apache.commons.io.FileUtils;
import static org.testng.Assert.assertTrue;

import java.io.File;

/**
 * This class implements a test host for Xenon micro-services.
 */
public class SchedulerTestEnvironment extends MultiHostEnvironment<PhotonControllerXenonHost> {
    /**
     * Constructs a test environment object.
     *
     * @throws Throwable Throws an exception if any error is encountered.
     */
    private SchedulerTestEnvironment(HostClientFactory hostClientFactory, SchedulerConfig config,
            ConstraintChecker constraintChecker, CloudStoreHelper cloudStoreHelper, int hostCount)
            throws Throwable {
        assertTrue(hostCount > 0);
        hosts = new PhotonControllerXenonHost[hostCount];
        for (int i = 0; i < hosts.length; i++) {
            String sandbox = generateStorageSandboxPath();
            FileUtils.forceMkdir(new File(sandbox));

            XenonConfig xenonConfig = new XenonConfig();
            xenonConfig.setBindAddress(BIND_ADDRESS);
            xenonConfig.setPort(0);
            xenonConfig.setStoragePath(sandbox);

            hosts[i] = new PhotonControllerXenonHost(xenonConfig, hostClientFactory, null, null, cloudStoreHelper,
                    null);
            SchedulerServiceGroup schedulerServiceGroup = new SchedulerServiceGroup(config.getRoot(),
                    constraintChecker);
            hosts[i].registerScheduler(schedulerServiceGroup);
        }
    }

    /**
     * Create instance of SchedulerTestEnvironment with specified count of hosts and starts all hosts.
     *
     * @return
     * @throws Throwable
     */
    public static SchedulerTestEnvironment create(HostClientFactory hostClientFactory, SchedulerConfig config,
            ConstraintChecker checker, CloudStoreHelper cloudStoreHelper, int hostCount) throws Throwable {
        SchedulerTestEnvironment schedulerTestEnvironment = new SchedulerTestEnvironment(hostClientFactory, config,
                checker, cloudStoreHelper, hostCount);
        schedulerTestEnvironment.start();
        return schedulerTestEnvironment;
    }
}