LineContainsRegExp (Apache Ant API)
org.apache.tools.ant.filters
Class LineContainsRegExp
java.lang.Object
|
+--java.io.Reader
|
+--java.io.FilterReader
|
+--org.apache.tools.ant.filters.BaseFilterReader
|
+--org.apache.tools.ant.filters.BaseParamFilterReader
|
+--org.apache.tools.ant.filters.LineContainsRegExp
All Implemented Interfaces: ChainableReader , Parameterizable
public final class LineContainsRegExp extends BaseParamFilterReader implements ChainableReader
Filter which includes only those lines that contain the user-specified
regular expression matching strings.
Example:
<linecontainsregexp>
<regexp pattern="foo*">
</linecontainsregexp>
Or:
<filterreader classname="org.apache.tools.ant.filters.LineContainsRegExp">
<param type="regexp" value="foo*"/>
</filterreader>
This will fetch all those lines that contain the pattern foo
Author: Magesh Umasankar
Fields inherited from class java.io.FilterReader
in
Fields inherited from class java.io.Reader
lock
Method Summary
void
addConfiguredRegexp (RegularExpression regExp)
Adds a regexp
element.
java.io.Reader
chain (java.io.Reader rdr)
Creates a new LineContainsRegExp using the passed in
Reader for instantiation.
int
read ()
Returns the next character in the filtered stream, only including
lines from the original stream which match all of the specified
regular expressions.
Methods inherited from class java.io.FilterReader
close, mark, markSupported, ready, reset
Methods inherited from class java.io.Reader
read
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
LineContainsRegExp
public LineContainsRegExp ()
Constructor for "dummy" instances.
See Also: BaseFilterReader.BaseFilterReader()
LineContainsRegExp
public LineContainsRegExp (java.io.Reader in)
Creates a new filtered reader.
Parameters: in
- A Reader object providing the underlying stream.
Must not be null
.
read
public final int read ()
throws java.io.IOException
Returns the next character in the filtered stream, only including
lines from the original stream which match all of the specified
regular expressions.
Overrides: read
in class java.io.FilterReader
Returns: the next character in the resulting stream, or -1
if the end of the resulting stream has been reached
Throws:
java.io.IOException
- if the underlying stream throws an IOException
during reading
addConfiguredRegexp
public final void addConfiguredRegexp (RegularExpression regExp)
Adds a regexp
element.
Parameters: regExp
- The regexp
element to add.
Must not be null
.
chain
public final java.io.Reader chain (java.io.Reader rdr)
Creates a new LineContainsRegExp using the passed in
Reader for instantiation.
Specified by: chain
in interface ChainableReader
Parameters: rdr
- A Reader object providing the underlying stream.
Must not be null
.
Returns: a new filter based on this configuration, but filtering
the specified reader
Copyright © 2000-2002 Apache Software Foundation. All Rights Reserved.