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java.lang.Object cc.mallet.pipe.iterator.FileListIterator
public class FileListIterator
An iterator that generates instances for a pipe from a list of filenames. Each file is treated as a text file whose target is determined by a user-specified regular expression pattern applied to the filename
Field Summary | |
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static java.util.regex.Pattern |
ALL_DIRECTORIES
Use as label names all the directory names in the filename. |
static java.util.regex.Pattern |
FIRST_DIRECTORY
Use as label names the first directory in the filename. |
static java.util.regex.Pattern |
LAST_DIRECTORY
Use as label name the last directory in the filename. |
static java.util.regex.Pattern |
STARTING_DIRECTORIES
Use as label names the directories of the given files, optionally removing common prefix of all starting directories |
Constructor Summary | |
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FileListIterator(java.io.File[] files,
java.io.FileFilter fileFilter,
java.util.regex.Pattern targetPattern,
boolean removeCommonPrefix)
Construct an iterator over the given arry of Files The instances constructed from the files are returned in the same order as they appear in the given array |
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FileListIterator(java.io.File filelist,
java.io.File baseDirectory,
java.io.FileFilter fileFilter,
java.util.regex.Pattern targetPattern,
boolean removeCommonPrefix)
Construct a FileListIterator with the file containing the list of files of RELATIVE pathnames, one filename per line. |
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FileListIterator(java.io.File filelist,
java.io.FileFilter fileFilter,
java.util.regex.Pattern targetPattern,
boolean removeCommonPrefix)
Construct a FileListIterator with the file containing the list of files, which contains one filename per line. |
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FileListIterator(java.lang.String[] filenames,
java.io.FileFilter fileFilter,
java.util.regex.Pattern targetPattern,
boolean removeCommonPrefix)
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FileListIterator(java.lang.String filelistName,
java.io.FileFilter fileFilter,
java.util.regex.Pattern targetPattern,
boolean removeCommonPrefix)
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FileListIterator(java.lang.String filelistName,
java.util.regex.Pattern targetPattern)
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Method Summary | |
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java.util.ArrayList |
getFileArray()
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boolean |
hasNext()
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Instance |
next()
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java.io.File |
nextFile()
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void |
remove()
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final java.util.regex.Pattern STARTING_DIRECTORIES
public static final java.util.regex.Pattern FIRST_DIRECTORY
public static final java.util.regex.Pattern LAST_DIRECTORY
public static final java.util.regex.Pattern ALL_DIRECTORIES
Constructor Detail |
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public FileListIterator(java.io.File[] files, java.io.FileFilter fileFilter, java.util.regex.Pattern targetPattern, boolean removeCommonPrefix)
files
- Array of files from which to construct instancesfileFilter
- class implementing interface FileFilter that will decide which names to accept.
May be null.targetPattern
- regex Pattern applied to the filename whose first parenthesized group
on matching is taken to be the target value of the generated instance.
The pattern is applied to the filename with the matcher.find() method.removeCommonPrefix
- boolean that modifies the behavior of the STARTING_DIRECTORIES
pattern, removing the common prefix of all initially specified
directories, leaving the remainder of each filename as the target value.public FileListIterator(java.lang.String[] filenames, java.io.FileFilter fileFilter, java.util.regex.Pattern targetPattern, boolean removeCommonPrefix)
public FileListIterator(java.io.File filelist, java.io.FileFilter fileFilter, java.util.regex.Pattern targetPattern, boolean removeCommonPrefix) throws java.io.FileNotFoundException, java.io.IOException
java.io.FileNotFoundException
java.io.IOException
public FileListIterator(java.io.File filelist, java.io.File baseDirectory, java.io.FileFilter fileFilter, java.util.regex.Pattern targetPattern, boolean removeCommonPrefix) throws java.io.FileNotFoundException, java.io.IOException
The instances constructed from the filelist are returned in the same order as listed
filelist
- List of relative file names.baseDirectory
- Base directory for relative file names.
java.io.FileNotFoundException
java.io.IOException
public FileListIterator(java.lang.String filelistName, java.io.FileFilter fileFilter, java.util.regex.Pattern targetPattern, boolean removeCommonPrefix) throws java.io.FileNotFoundException, java.io.IOException
java.io.FileNotFoundException
java.io.IOException
public FileListIterator(java.lang.String filelistName, java.util.regex.Pattern targetPattern) throws java.io.FileNotFoundException, java.io.IOException
java.io.FileNotFoundException
java.io.IOException
Method Detail |
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public Instance next()
next
in interface java.util.Iterator<Instance>
public java.io.File nextFile()
public boolean hasNext()
hasNext
in interface java.util.Iterator<Instance>
public void remove()
remove
in interface java.util.Iterator<Instance>
public java.util.ArrayList getFileArray()
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