| org.apache.tools.ant.filters.BaseFilterReader org.apache.tools.ant.filters.BaseParamFilterReader org.apache.tools.ant.filters.TailFilter
TailFilter | final public class TailFilter extends BaseParamFilterReader implements ChainableReader(Code) | | Reads the last n lines of a stream. (Default is last10 lines.)
Example:
<tailfilter lines="3"/>
Or:
<filterreader classname="org.apache.tools.ant.filters.TailFilter">
<param name="lines" value="3"/>
</filterreader>
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Constructor Summary | |
public | TailFilter() Constructor for "dummy" instances. | public | TailFilter(Reader in) Creates a new filtered reader. |
Method Summary | |
public Reader | chain(Reader rdr) Creates a new TailFilter using the passed in
Reader for instantiation.
Parameters: rdr - A Reader object providing the underlying stream.Must not be null . | public int | read() Returns the next character in the filtered stream. | public void | setLines(long lines) Sets the number of lines to be returned in the filtered stream. | public void | setSkip(long skip) Sets the number of lines to be skipped in the filtered stream. |
TailFilter | public TailFilter(Reader in)(Code) | | Creates a new filtered reader.
Parameters: in - A Reader object providing the underlying stream.Must not be null . |
chain | public Reader chain(Reader rdr)(Code) | | Creates a new TailFilter using the passed in
Reader for instantiation.
Parameters: rdr - A Reader object providing the underlying stream.Must not be null . a new filter based on this configuration, but filteringthe specified reader |
read | public int read() throws IOException(Code) | | Returns the next character in the filtered stream. If the read-ahead
has been completed, the next character in the buffer is returned.
Otherwise, the stream is read to the end and buffered (with the buffer
growing as necessary), then the appropriate position in the buffer is
set to read from.
the next character in the resulting stream, or -1if the end of the resulting stream has been reached exception: IOException - if the underlying stream throws an IOExceptionduring reading |
setLines | public void setLines(long lines)(Code) | | Sets the number of lines to be returned in the filtered stream.
Parameters: lines - the number of lines to be returned in the filtered stream |
setSkip | public void setSkip(long skip)(Code) | | Sets the number of lines to be skipped in the filtered stream.
Parameters: skip - the number of lines to be skipped in the filtered stream |
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