SubmittedJob.java 文件源码

@SuppressWarnings("unchecked")
private static <T> T getSplitDetails(FSDataInputStream inFile, long offset, Configuration configuration)
        throws IOException {
    inFile.seek(offset);
    String className = StringInterner.weakIntern(Text.readString(inFile));
    Class<T> cls;
    try {
        cls = (Class<T>) configuration.getClassByName(className);
    } catch (ClassNotFoundException ce) {
        IOException wrap = new IOException("Split class " + className +
                " not found");
        wrap.initCause(ce);
        throw wrap;
    }
    SerializationFactory factory = new SerializationFactory(configuration);
    Deserializer<T> deserializer =
            (Deserializer<T>) factory.getDeserializer(cls);
    deserializer.open(inFile);
    T split = deserializer.deserialize(null);
    return split;
}