Package org.apache.tools.ant.filters
Class PrefixLines
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.PrefixLines
- All Implemented Interfaces:
- Closeable,- AutoCloseable,- Readable,- ChainableReader,- Parameterizable
Attaches a prefix to every line.
 Example:
 
<prefixlines prefix="Foo"/>Or:
<filterreader classname="org.apache.tools.ant.filters.PrefixLines"> <param name="prefix" value="Foo"/> </filterreader>
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Field SummaryFields inherited from class java.io.FilterReaderin
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Constructor SummaryConstructorsConstructorDescriptionConstructor for "dummy" instances.PrefixLines(Reader in) Creates a new filtered reader.
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Method SummaryMethods inherited from class org.apache.tools.ant.filters.BaseParamFilterReadergetParameters, setParametersMethods inherited from class org.apache.tools.ant.filters.BaseFilterReadergetInitialized, getProject, read, readFully, readLine, setInitialized, setProject, skipMethods inherited from class java.io.FilterReaderclose, mark, markSupported, ready, resetMethods inherited from class java.io.ReadernullReader, read, read, transferTo
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Constructor Details- 
PrefixLinespublic PrefixLines()Constructor for "dummy" instances.- See Also:
 
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PrefixLinesCreates a new filtered reader.- Parameters:
- in- A Reader object providing the underlying stream. Must not be- null.
 
 
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Method Details- 
readReturns the next character in the filtered stream. One line is read from the original input, and the prefix added. The resulting line is then used until it ends, at which point the next original line is read, etc.- Overrides:
- readin class- FilterReader
- Returns:
- the next character in the resulting stream, or -1 if the end of the resulting stream has been reached
- Throws:
- IOException- if the underlying stream throws an IOException during reading
 
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setPrefixSets the prefix to add at the start of each input line.- Parameters:
- prefix- The prefix to add at the start of each input line. May be- null, in which case no prefix is added.
 
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chainCreates a new PrefixLines filter using the passed in Reader for instantiation.- Specified by:
- chainin 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
 
 
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