MagicFileNumberTest

java.lang.Object
- de.intarsys.tools.file.MagicFileNumberTest

public class MagicFileNumberTest
extends java.lang.Object

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class MagicFileNumberTest.Type

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`addType(java.lang.String fileSuffix, byte[] magicBytes)`
`protected static void`	`addTypes()`
`static java.lang.String`	`guessFileSuffix(byte[] data)`
`static java.lang.String`	`guessFileSuffix(IRandomAccess data)`
`static boolean`	`isText(byte[] data)`	does the data contain only ISO-8819-x printable characters ?
`static boolean`	`isText(IRandomAccess data)`	does the data contain only ISO-8819-x printable characters ?

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

- Method Detail
  - addType
```
public static void addType(java.lang.String fileSuffix,
                           byte[] magicBytes)
```
    Parameters:
    
    fileSuffix - just the suffix without any starting suffix delimiters (e.g.: 'pdf')
    
    magicBytes - any bytes, not null or zero size
  - addTypes
```
protected static void addTypes()
```
  - guessFileSuffix
```
public static java.lang.String guessFileSuffix(byte[] data)
```
    Parameters:
    
    data - any not null or zero size data
    
    Returns:
    
    a file suffix without a delimiter (e.g.: 'pdf') or null
  - guessFileSuffix
```
public static java.lang.String guessFileSuffix(IRandomAccess data)
                                        throws java.io.IOException
```
    Parameters:
    
    data - any not null or zero size data
    
    Returns:
    
    a file suffix without a delimiter (e.g.: 'pdf') or null
    
    Throws:
    
    java.io.IOException
  - isText
```
public static boolean isText(byte[] data)
```
    does the data contain only ISO-8819-x printable characters ?
  - isText
```
public static boolean isText(IRandomAccess data)
                      throws java.io.IOException
```
    does the data contain only ISO-8819-x printable characters ?
    
    Throws:
    
    java.io.IOException