TestHostAllocationPaginationStrategy2.java example

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package org.zstack.test.compute.hostallocator;

import org.junit.Before;
import org.junit.Test;
import org.zstack.compute.allocator.HostAllocatorGlobalConfig;
import org.zstack.core.cloudbus.CloudBus;
import org.zstack.core.componentloader.ComponentLoader;
import org.zstack.core.db.DatabaseFacade;
import org.zstack.header.apimediator.ApiMediatorConstant;
import org.zstack.header.configuration.InstanceOfferingInventory;
import org.zstack.header.image.ImageInventory;
import org.zstack.header.network.l3.L3NetworkInventory;
import org.zstack.header.vm.APICreateVmInstanceEvent;
import org.zstack.header.vm.APICreateVmInstanceMsg;
import org.zstack.header.vm.VmInstanceConstant;
import org.zstack.header.vm.VmInstanceInventory;
import org.zstack.test.Api;
import org.zstack.test.ApiSender;
import org.zstack.test.ApiSenderException;
import org.zstack.test.DBUtil;
import org.zstack.test.deployer.Deployer;

import java.util.ArrayList;
import java.util.List;

/**
 * 1. have 5 hosts, no host have enough capacity
 * 2. set hostAllocator.usePagination to true
 * 3. set hostAllocator.paginationLimit = 1
 * 3. create vm
 * <p>
 * confirm vm created failed
 */
public class TestHostAllocationPaginationStrategy2 {
    Deployer deployer;
    Api api;
    ComponentLoader loader;
    CloudBus bus;
    DatabaseFacade dbf;

    @Before
    public void setUp() throws Exception {
        DBUtil.reDeployDB();
        deployer = new Deployer("deployerXml/hostAllocator/TestHostAllocationPaginationStrategy1.xml");
        deployer.build();
        api = deployer.getApi();
        loader = deployer.getComponentLoader();
        bus = loader.getComponent(CloudBus.class);
        dbf = loader.getComponent(DatabaseFacade.class);
    }

    private class VmCreator {
        List<String> l3NetworkUuids = new ArrayList<String>();
        String imageUuid;
        String instanceOfferingUuid;
        List<String> diskOfferingUuids = new ArrayList<String>();
        String zoneUuid;
        String clusterUUid;
        String hostUuid;
        String name = "vm";

        void addL3Network(String uuid) {
            l3NetworkUuids.add(uuid);
        }

        void addDisk(String uuid) {
            diskOfferingUuids.add(uuid);
        }

        VmInstanceInventory create() throws ApiSenderException {
            APICreateVmInstanceMsg msg = new APICreateVmInstanceMsg();
            msg.setClusterUuid(clusterUUid);
            msg.setImageUuid(imageUuid);
            msg.setName(name);
            msg.setHostUuid(hostUuid);
            msg.setDataDiskOfferingUuids(diskOfferingUuids);
            msg.setInstanceOfferingUuid(instanceOfferingUuid);
            msg.setL3NetworkUuids(l3NetworkUuids);
            msg.setType(VmInstanceConstant.USER_VM_TYPE);
            msg.setZoneUuid(zoneUuid);
            msg.setHostUuid(hostUuid);
            msg.setServiceId(ApiMediatorConstant.SERVICE_ID);
            msg.setSession(api.getAdminSession());
            ApiSender sender = new ApiSender();
            APICreateVmInstanceEvent evt = sender.send(msg, APICreateVmInstanceEvent.class);
            return evt.getInventory();
        }
    }

    @Test(expected = ApiSenderException.class)
    public void test() throws ApiSenderException {
        L3NetworkInventory l3 = deployer.l3Networks.get("l3Network1");
        InstanceOfferingInventory instanceOffering = deployer.instanceOfferings.get("instanceOffering512M512HZ");
        ImageInventory imageInventory = deployer.images.get("image1");
        HostAllocatorGlobalConfig.USE_PAGINATION.updateValue(true);
        HostAllocatorGlobalConfig.PAGINATION_LIMIT.updateValue(1);

        VmCreator creator = new VmCreator();
        creator.addL3Network(l3.getUuid());
        creator.imageUuid = imageInventory.getUuid();
        creator.instanceOfferingUuid = instanceOffering.getUuid();
        creator.create();
    }
}