org.apache.flink.runtime.security.modules.HadoopModuleFactory Maven / Gradle / Ivy
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* 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,
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*/
package org.apache.flink.runtime.security.modules;
import org.apache.flink.runtime.security.SecurityConfiguration;
import org.apache.flink.runtime.util.HadoopUtils;
import org.apache.hadoop.conf.Configuration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A {@link SecurityModuleFactory} for {@link HadoopModule}. This checks if Hadoop dependencies
* are available before creating a {@link HadoopModule}.
*/
public class HadoopModuleFactory implements SecurityModuleFactory {
private static final Logger LOG = LoggerFactory.getLogger(HadoopModuleFactory.class);
@Override
public SecurityModule createModule(SecurityConfiguration securityConfig) {
// First check if we have Hadoop in the ClassPath. If not, we simply don't do anything.
try {
Class.forName(
"org.apache.hadoop.conf.Configuration",
false,
HadoopModule.class.getClassLoader());
} catch (ClassNotFoundException e) {
LOG.info("Cannot create Hadoop Security Module because Hadoop cannot be found in the Classpath.");
return null;
}
try {
Configuration hadoopConfiguration = HadoopUtils.getHadoopConfiguration(securityConfig.getFlinkConfig());
return new HadoopModule(securityConfig, hadoopConfiguration);
} catch (LinkageError e) {
LOG.error("Cannot create Hadoop Security Module.", e);
return null;
}
}
}