TextDetector (Apache Tika 3.1.0 API)

java.lang.Object
- org.apache.tika.detect.TextDetector

All Implemented Interfaces:

Serializable, Detector
```
public class TextDetector
extends Object
implements Detector
```
Content type detection of plain text documents. This detector looks at the beginning of the document input stream and considers the document to be a text document if no ASCII (ISO-Latin-1, UTF-8, etc.) control bytes are found. As a special case some control bytes (up to 2% of all characters) are also allowed in a text document if it also contains no or just a few (less than 10%) characters above the 7-bit ASCII range.
Note that text documents with a character encoding like UTF-16 are better detected with MagicDetector and an appropriate magic byte pattern.

Since:

Apache Tika 0.3

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor	Description
`TextDetector()`	Constructs a `TextDetector` which will look at the default number of bytes from the beginning of the document.
`TextDetector(int bytesToTest)`	Constructs a `TextDetector` which will look at a given number of bytes from the beginning of the document.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`MediaType`	`detect(InputStream input, Metadata metadata)`	Looks at the beginning of the document input stream to determine whether the document is text or not.

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

- Constructor Detail
  - TextDetector
```
public TextDetector()
```
    Constructs a TextDetector which will look at the default number of bytes from the beginning of the document.
  - TextDetector
```
public TextDetector(int bytesToTest)
```
    Constructs a TextDetector which will look at a given number of bytes from the beginning of the document.
- Method Detail
  - detect
```
public MediaType detect(InputStream input,
                        Metadata metadata)
                 throws IOException
```
    Looks at the beginning of the document input stream to determine whether the document is text or not.
    
    Specified by:
    
    detect in interface Detector
    
    Parameters:
    
    input - document input stream, or null
    
    metadata - ignored
    
    Returns:
    
    "text/plain" if the input stream suggest a text document, "application/octet-stream" otherwise
    
    Throws:
    
    IOException - if the document input stream could not be read