HeaderMatcher

java.lang.Object
- org.apache.rat.header.HeaderMatcher

```
public class HeaderMatcher
extends java.lang.Object
```
Matches headers.

Usage:
1. read(Reader) content
2. matches(Pattern) against filtered content
Note: use only from a single thread.

Field Summary

Fields
Modifier and Type Field Description

private FilteringSequenceFactory factory

private HeaderBean[] headers

private int lines

private java.lang.CharSequence read

Constructor Summary

Constructors
Constructor	Description
`HeaderMatcher(CharFilter filter, int capacity)`
`HeaderMatcher(CharFilter filter, int capacity, HeaderBean[] headers)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`lines()`	Number of lines read.
`boolean`	`matches(java.util.regex.Pattern pattern)`	Seeks a match in the last headers read.
`void`	`read(java.io.Reader reader)`

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

Field Detail

factory

private final FilteringSequenceFactory factory

headers
```
private final HeaderBean[] headers
```

read
```
private java.lang.CharSequence read
```

lines
```
private int lines
```

Constructor Detail

HeaderMatcher

public HeaderMatcher(CharFilter filter,
                     int capacity)

HeaderMatcher

public HeaderMatcher(CharFilter filter,
                     int capacity,
                     HeaderBean[] headers)

Method Detail
- read
```
public void read(java.io.Reader reader)
          throws java.io.IOException
```
  Throws:
  
  java.io.IOException
- matches
```
public boolean matches(java.util.regex.Pattern pattern)
```
  Seeks a match in the last headers read.
  
  Note that this pattern must not contain filtered characters.
  
  Parameters:
  
  pattern - Pattern to match
  
  Returns:
  
  true if the pattern matches, false otherwise or if read(Reader) has not been called
- lines
```
public int lines()
```
  Number of lines read.
  
  Returns:
  
  the number of lines in the file or -1 if the file has more lines than were read