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
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 © 2000-2004 Apache Software Foundation. All Rights Reserved.