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HDFS-14825. [Dynamometer] Workload doesn't start unless an absolute path of Mapper class given. (#1693)

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Takanobu Asanuma 2019-12-04 11:28:50 +09:00 committed by Akira Ajisaka
parent f1ab7f18c4
commit 54e760511a
1 changed files with 20 additions and 9 deletions
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19
hadoop-tools/hadoop-dynamometer/hadoop-dynamometer-workload/src/main/java/org/apache/hadoop/tools/dynamometer/workloadgenerator/WorkloadDriver.java
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@ -168,17 +168,28 @@ public static void main(String[] args) throws Exception {
// recognize this // recognize this
@SuppressWarnings("unchecked") @SuppressWarnings("unchecked")
private Class<? extends WorkloadMapper<?, ?, ?, ?>> getMapperClass( private Class<? extends WorkloadMapper<?, ?, ?, ?>> getMapperClass(
String className) throws ClassNotFoundException { String className) {
if (!className.contains(".")) { String[] potentialQualifiedClassNames = {
className = WorkloadDriver.class.getPackage().getName() + "." + className; WorkloadDriver.class.getPackage().getName() + "." + className,
AuditReplayMapper.class.getPackage().getName() + "." + className,
className
};
for (String qualifiedClassName : potentialQualifiedClassNames) {
Class<?> mapperClass;
try {
mapperClass = getConf().getClassByName(qualifiedClassName);
} catch (ClassNotFoundException cnfe) {
continue;
} }
Class<?> mapperClass = getConf().getClassByName(className);
if (!WorkloadMapper.class.isAssignableFrom(mapperClass)) { if (!WorkloadMapper.class.isAssignableFrom(mapperClass)) {
throw new IllegalArgumentException(className + " is not a subclass of " throw new IllegalArgumentException(className + " is not a subclass of "
+ WorkloadMapper.class.getCanonicalName()); + WorkloadMapper.class.getCanonicalName());
} }
return (Class<? extends WorkloadMapper<?, ?, ?, ?>>) mapperClass; return (Class<? extends WorkloadMapper<?, ?, ?, ?>>) mapperClass;
} }
throw new IllegalArgumentException("Unable to find workload mapper class: "
+ className);
}
private String getMapperUsageInfo(String mapperClassName) private String getMapperUsageInfo(String mapperClassName)
throws ClassNotFoundException, InstantiationException, throws ClassNotFoundException, InstantiationException,