gov.nih.nlm.umls.io
Class SearchStringPushBackReader

java.lang.Object
  java.io.Reader
      java.io.BufferedReader
          gov.nih.nlm.umls.io.PushBackReader
              gov.nih.nlm.umls.io.SearchStringPushBackReader

All Implemented Interfaces:

LocalNullValueSupport, Closeable, Readable

public class SearchStringPushBackReader
extends PushBackReader

Extends PushBackReader to provide the ability to find a single line of input, given a search string or pattern, and to push it back onto the reader to read it again on the next readLine() call.

Author:

Brian Carlsen

Field Summary

protected String	char_set
protected RandomAccessFile	raf
protected String	search_pattern

Fields inherited from class gov.nih.nlm.umls.io.PushBackReader

line, null_value, null_value_flag, regex_null_value

Fields inherited from class java.io.Reader

lock

Constructor Summary

SearchStringPushBackReader(File file, String search_str)
Instantiates a new SearchStringPushBackReader from the specified file and search pattern.

SearchStringPushBackReader(RandomAccessFile raf, String search_str)
Instantiates a new SearchStringPushBackReader from the specified file and search pattern.

Method Summary

void	close() Close the SearchStringPushBackReader.
String	readLine() Returns the next line from the reader.
void	setCharSet(String char_set) Sets the character set to the given parameter.

Methods inherited from class gov.nih.nlm.umls.io.PushBackReader

getNullValue, isEmptyValue, push, resolveNull, setNullValue

Methods inherited from class java.io.BufferedReader

mark, markSupported, read, read, ready, reset, skip

Methods inherited from class java.io.Reader

read, read

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

char_set

protected String char_set

raf

protected RandomAccessFile raf

search_pattern

protected String search_pattern

Constructor Detail

SearchStringPushBackReader

public SearchStringPushBackReader(File file,
                                  String search_str)
                           throws IOException,
                                  FileNotFoundException

Instantiates a new SearchStringPushBackReader from the specified file and search pattern.

Parameters:

file - the File to open and search in

search_str - the search pattern

Throws:

IOException

FileNotFoundException

SearchStringPushBackReader

public SearchStringPushBackReader(RandomAccessFile raf,
                                  String search_str)
                           throws IOException,
                                  FileNotFoundException

Instantiates a new SearchStringPushBackReader from the specified file and search pattern.

Parameters:

raf - the RandomAccessFile to search in

search_str - the search pattern

Throws:

IOException

FileNotFoundException

Method Detail

readLine

public String readLine()
                throws IOException

Returns the next line from the reader.

Overrides:

readLine in class PushBackReader

Returns:

the next line from the reader

Throws:

IOException

setCharSet

public void setCharSet(String char_set)

Sets the character set to the given parameter.

Parameters:

char_set - character set parameter such as "UTF-8"

close

public void close()
           throws IOException

Close the SearchStringPushBackReader.

Specified by:

close in interface Closeable

Overrides:

close in class BufferedReader

Throws:

IOException