/*
* 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 gobblin.runtime.job_catalog;
import java.io.IOException;
import java.net.URI;
import org.apache.hadoop.fs.Path;
import com.typesafe.config.Config;
import gobblin.runtime.api.JobSpec;
import gobblin.util.PathUtils;
import gobblin.util.PullFileLoader;
import gobblin.util.filesystem.PathAlterationListenerAdaptor;
public class FSPathAlterationListenerAdaptor extends PathAlterationListenerAdaptor {
private final Path jobConfDirPath;
private final PullFileLoader loader;
private final Config sysConfig;
private final JobCatalogListenersList listeners;
private final ImmutableFSJobCatalog.JobSpecConverter converter;
FSPathAlterationListenerAdaptor(Path jobConfDirPath, PullFileLoader loader, Config sysConfig,
JobCatalogListenersList listeners, ImmutableFSJobCatalog.JobSpecConverter converter) {
this.jobConfDirPath = jobConfDirPath;
this.loader = loader;
this.sysConfig = sysConfig;
this.listeners = listeners;
this.converter = converter;
}
/**
* Transform the event triggered by file creation into JobSpec Creation for Driver (One of the JobCatalogListener )
* Create a new JobSpec object and notify each of member inside JobCatalogListenersList
* @param rawPath This could be complete path to the newly-created configuration file.
*/
@Override
public void onFileCreate(Path rawPath) {
try {
JobSpec newJobSpec =
this.converter.apply(loader.loadPullFile(rawPath, sysConfig, false));
listeners.onAddJob(newJobSpec);
} catch (IOException e) {
throw new RuntimeException(e.getMessage());
}
}
/**
* For already deleted job configuration file, the only identifier is path
* it doesn't make sense to loadJobConfig Here.
* @param rawPath This could be the complete path to the newly-deleted configuration file.
*/
@Override
public void onFileDelete(Path rawPath) {
URI jobSpecUri = this.converter.computeURI(rawPath);
// TODO: fix version
listeners.onDeleteJob(jobSpecUri, null);
}
@Override
public void onFileChange(Path rawPath) {
try {
JobSpec updatedJobSpec =
this.converter.apply(loader.loadPullFile(rawPath, sysConfig, false));
listeners.onUpdateJob(updatedJobSpec);
} catch (IOException e) {
throw new RuntimeException(e.getMessage());
}
}
}