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java.lang.Object org.at4j.support.prog.AbstractProgram org.at4j.comp.prog.AbstractStreamCompressionProgram<T>
T
- The class containing the parsed command line arguments for the
command.public abstract class AbstractStreamCompressionProgram<T extends StreamCompressionProgramArguments>
An abstract base class for compression programs that use streams to compress and decompress data.
Constructor Summary | |
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AbstractStreamCompressionProgram()
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Method Summary | |
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protected abstract InputStream |
createInputStream(int sourceNo,
T settings)
Create an input stream on the source entity for the given command line arguments. |
protected abstract OutputStream |
createOutputStream(int targetNo,
T settings)
Create an output stream on the target entity for the given command line arguments. |
protected abstract T |
parseCommandLine(String[] args)
Subclasses implement this to parse their command line. |
protected void |
postProcess(int sourceNo,
T settings)
Subclasses may override this for postprocessing the source and/or target entity. |
protected void |
run(String[] args)
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Methods inherited from class org.at4j.support.prog.AbstractProgram |
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getArg, getParentLocation, isFlagArgument |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public AbstractStreamCompressionProgram()
Method Detail |
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protected abstract T parseCommandLine(String[] args) throws CommandErrorException
args
- The command line arguments, unparsed.
CommandErrorException
- If the commands were invalid.protected abstract InputStream createInputStream(int sourceNo, T settings) throws IOException, IgnoreFileException
sourceNo
- The index number for the source entity. The first source
has index == 0.settings
- The command line arguments.
IOException
- On I/O errors.
IgnoreFileException
- If the file should be ignored for some
reason.protected abstract OutputStream createOutputStream(int targetNo, T settings) throws IOException, IgnoreFileException
targetNo
- The index number for the target entity. The first target
has index == 0.settings
- The command line arguments.
IOException
- On I/O errors.
IgnoreFileException
- If the file should be ignored for some
reason.protected void postProcess(int sourceNo, T settings) throws IOException
sourceNo
- The index number for the source and target entities.settings
- The command line arguments.
IOException
- On I/O errors.protected void run(String[] args) throws CommandErrorException, IOException
CommandErrorException
IOException
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