LoaderUtils (Grape Java SDK 0.28.0 API)

java.lang.Object
- com.alibaba.graphscope.loader.LoaderUtils

```
public class LoaderUtils
extends Object
```

Constructor Summary

Constructors
Constructor Description

LoaderUtils()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`checkFileExist(String path)`
`static int`	`generateTypeInt(Class<? extends org.apache.hadoop.io.Writable>... clzs)`	Generate an int containing clz array info.
`static long`	`getNumLinesOfFile(String path)`
`static int`	`writable2Int(Class<? extends org.apache.hadoop.io.Writable> clz)`	return a 4 bit int containing type info.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - LoaderUtils
```
public LoaderUtils()
```
- Method Detail
  - checkFileExist
```
public static boolean checkFileExist(String path)
```
  - getNumLinesOfFile
```
public static long getNumLinesOfFile(String path)
```
  - generateTypeInt
```
public static int generateTypeInt(Class<? extends org.apache.hadoop.io.Writable>... clzs)
```
    Generate an int containing clz array info.
    
    Parameters:
    
    clzs - input classes.
    
    Returns:
    
    generated value, the order of encoded bits value is the same as input order.
  - writable2Int
```
public static int writable2Int(Class<? extends org.apache.hadoop.io.Writable> clz)
```
    return a 4 bit int containing type info.
    
    Parameters:
    
    clz - input clz
    
    Returns: