/*
* 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.ignite.spi.loadbalancing.adaptive;
import java.util.Collections;
import java.util.List;
import java.util.UUID;
import org.apache.ignite.GridTestJob;
import org.apache.ignite.GridTestTaskSession;
import org.apache.ignite.cluster.ClusterNode;
import org.apache.ignite.compute.ComputeTaskSession;
import org.apache.ignite.lang.IgniteUuid;
import org.apache.ignite.testframework.GridSpiTestContext;
import org.apache.ignite.testframework.GridTestNode;
import org.apache.ignite.testframework.junits.spi.GridSpiAbstractTest;
import org.apache.ignite.testframework.junits.spi.GridSpiTest;
import org.apache.ignite.testframework.junits.spi.GridSpiTestConfig;
/**
* Tests adaptive load balancing SPI.
*/
@GridSpiTest(spi = AdaptiveLoadBalancingSpi.class, group = "Load Balancing SPI")
public class GridAdaptiveLoadBalancingSpiSelfTest extends GridSpiAbstractTest<AdaptiveLoadBalancingSpi> {
/** {@inheritDoc} */
@Override protected GridSpiTestContext initSpiContext() throws Exception {
GridSpiTestContext ctx = super.initSpiContext();
ctx.setLocalNode(new GridTestNode(UUID.randomUUID()));
return ctx;
}
/**
* @return {@code True} if node weights should be considered.
*/
@GridSpiTestConfig
public AdaptiveLoadProbe getLoadProbe() {
return new AdaptiveLoadProbe() {
@Override public double getLoad(ClusterNode node, int jobsSentSinceLastUpdate) {
boolean isFirstTime = node.attribute("used") == null;
assert isFirstTime ? jobsSentSinceLastUpdate == 0 : jobsSentSinceLastUpdate > 0;
return (Double)node.attribute("load");
}
};
}
/**
* @throws Exception If failed.
*/
@SuppressWarnings({"ObjectEquality"})
public void testSingleNodeZeroWeight() throws Exception {
GridTestNode node = (GridTestNode)getSpiContext().nodes().iterator().next();
node.addAttribute("load", 0d);
List<ClusterNode> nodes = Collections.singletonList((ClusterNode)node);
ComputeTaskSession ses = new GridTestTaskSession(IgniteUuid.randomUuid());
GridTestNode pick1 = (GridTestNode)getSpi().getBalancedNode(ses, nodes, new GridTestJob());
pick1.setAttribute("used", true);
assert nodes.contains(pick1);
// Verify that same instance is returned every time.
ClusterNode pick2 = getSpi().getBalancedNode(ses, nodes, new GridTestJob());
assert pick1 == pick2;
}
/**
* @throws Exception If failed.
*/
@SuppressWarnings({"ObjectEquality"})
public void testSingleNodeSameSession() throws Exception {
GridTestNode node = (GridTestNode)getSpiContext().nodes().iterator().next();
node.addAttribute("load", 1d);
List<ClusterNode> nodes = Collections.singletonList((ClusterNode)node);
ComputeTaskSession ses = new GridTestTaskSession(IgniteUuid.randomUuid());
GridTestNode pick1 = (GridTestNode)getSpi().getBalancedNode(ses, nodes, new GridTestJob());
pick1.setAttribute("used", true);
assert nodes.contains(pick1);
// Verify that same instance is returned every time.
ClusterNode pick2 = getSpi().getBalancedNode(ses, nodes, new GridTestJob());
assert pick1 == pick2;
}
/**
* @throws Exception If failed.
*/
@SuppressWarnings({"ObjectEquality"})
public void testSingleNodeDifferentSession() throws Exception {
GridTestNode node = (GridTestNode)getSpiContext().nodes().iterator().next();
node.addAttribute("load", 2d);
List<ClusterNode> nodes = Collections.singletonList((ClusterNode)node);
GridTestNode pick1 = (GridTestNode)getSpi().getBalancedNode(new GridTestTaskSession(IgniteUuid.randomUuid()),
nodes, new GridTestJob());
pick1.setAttribute("used", true);
assert nodes.contains(pick1);
// Verify that same instance is returned every time.
ClusterNode pick2 = getSpi().getBalancedNode(new GridTestTaskSession(IgniteUuid.randomUuid()), nodes,
new GridTestJob());
assert pick1 == pick2;
}
}