hadoop VolumeProvisioningTask 源码
haddop VolumeProvisioningTask 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/volume/csi/provisioner/VolumeProvisioningTask.java
/**
* 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.hadoop.yarn.server.resourcemanager.volume.csi.provisioner;
import org.apache.hadoop.yarn.server.resourcemanager.volume.csi.event.ControllerPublishVolumeEvent;
import org.apache.hadoop.yarn.server.resourcemanager.volume.csi.event.ValidateVolumeEvent;
import org.apache.hadoop.yarn.server.resourcemanager.volume.csi.lifecycle.Volume;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.List;
/**
* A provisioning task encapsulates all the logic required by a storage system
* to provision a volume. This class is the common implementation, it might
* be override if the provisioning behavior of a certain storage system
* is not completely align with this implementation.
*/
public class VolumeProvisioningTask implements VolumeProvisioner {
private static final Logger LOG = LoggerFactory
.getLogger(VolumeProvisioningTask.class);
private List<Volume> volumes;
public VolumeProvisioningTask(List<Volume> volumes) {
this.volumes = volumes;
}
public List<Volume> getVolumes() {
return this.volumes;
}
@Override
public VolumeProvisioningResults call() throws Exception {
VolumeProvisioningResults vpr = new VolumeProvisioningResults();
// Wait all volumes are reaching expected state
for (Volume vs : volumes) {
LOG.info("Provisioning volume : {}", vs.getVolumeId().toString());
vs.handle(new ValidateVolumeEvent(vs));
vs.handle(new ControllerPublishVolumeEvent(vs));
}
// collect results
volumes.stream().forEach(v ->
vpr.addResult(v.getVolumeId(), v.getVolumeState()));
return vpr;
}
}
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