EndstreamFilterStream

java.lang.Object
- org.apache.pdfbox.pdfparser.EndstreamFilterStream

```
class EndstreamFilterStream
extends java.lang.Object
```
This class is only for the readUntilEndStream method, to prevent a final CR LF or LF (but not a final CR!) from being written to the output, unless the beginning of the stream is assumed to be ASCII. This solves PDFBOX-2079 and PDFBOX-2120 and avoids making readUntilEndStream() even more complex than it already is.

Field Summary

Fields
Modifier and Type Field Description

private boolean hasCR

private boolean hasLF

private long length

private boolean mustFilter

private int pos

Constructor Summary

Constructors
Constructor Description

EndstreamFilterStream()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`long`	`calculateLength()`	write out a single CR if one was kept.
`void`	`filter(byte[] b, int off, int len)`	Write CR and/or LF that were kept, then writes len bytes from the specified byte array starting at offset off to this output stream, except trailing CR, CR LF, or LF.

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

- Field Detail
  - hasCR
```
private boolean hasCR
```
  - hasLF
```
private boolean hasLF
```
  - pos
```
private int pos
```
  - mustFilter
```
private boolean mustFilter
```
  - length
```
private long length
```
- Constructor Detail
  - EndstreamFilterStream
```
EndstreamFilterStream()
```
- Method Detail
  - filter
```
public void filter(byte[] b,
                   int off,
                   int len)
```
    Write CR and/or LF that were kept, then writes len bytes from the specified byte array starting at offset off to this output stream, except trailing CR, CR LF, or LF. No filtering will be done for the entire stream if the beginning is assumed to be ASCII.
    
    Parameters:
    
    b - byte array.
    
    off - offset.
    
    len - length of segment to write.
  - calculateLength
```
public long calculateLength()
```
    write out a single CR if one was kept. Don't write kept CR LF or LF, and then call the base method to flush.