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java.lang.Objectnet.sf.csv4j.CSVFileProcessor
public class CSVFileProcessor
Provides an easy to use mechanism to process CSV files. The details of reading and parsing the CSV file along with its header are managed.
The API provides a callback processor interface (CSVLineProcessor
)
which is called as the file is processed to receive the CSV header and data lines.
A simpler interface, CSVFieldMapProcessor
,
provides the field name and values for each line as an easy to access Map.
Example usage with CSVLineProcessor:
final CSVFileProcessor fp = new CSVFileProcessor(); fp.processFile( "data.csv", new CSVLineProcessor() { public void processHeaderLine( int linenumber, List<String> fields ) { // use / save the header } public void processDataLine( int linenumber, List<String> fields ) { // use the data } } );
Example usage with CSVFieldMapProcessor:
final CSVFileProcessor fp = new CSVFileProcessor(); fp.processFile( "data.csv", new CSVFieldMapProcessor() { public void processDataLine( int linenumber, Map<String,String> fields ) { // use the data } } );
Constructor Summary | |
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CSVFileProcessor()
Constructor. |
Method Summary | |
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char |
getComment()
Returns the comment setting. |
boolean |
isHasHeader()
Indicates if the file has a header line. |
int |
processFile(String filename,
CSVFieldMapProcessor processor)
Processes the CSV file using the provided processor. |
int |
processFile(String filename,
CSVLineProcessor processor)
Processes the CSV file using the provided processor |
int |
processFile(String filename,
CSVSortedFieldMapProcessor processor)
Processes the CSV file using the provided processor. |
void |
setComment(char comment)
Sets the comment string value. |
void |
setHasHeader(boolean hasHeader)
Sets the hasHeader value. |
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 CSVFileProcessor()
Method Detail |
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public char getComment()
public void setComment(char comment)
comment
- the new comment string valuepublic boolean isHasHeader()
public void setHasHeader(boolean hasHeader)
hasHeader
- true if file has a header line; false if notpublic int processFile(String filename, CSVLineProcessor processor) throws IOException, ProcessingException, ParseException
filename
- name of CSV fileprocessor
- handler to process the CSV lines
FileNotFoundException
- if file not found
IOException
- if a read error occurs
ProcessingException
- if an exception is thrown by the processor
ParseException
- if a error occurs parsing the CSV linepublic int processFile(String filename, CSVFieldMapProcessor processor) throws IOException, ProcessingException, ParseException
filename
- name of CSV fileprocessor
- handler to process the CSV lines
FileNotFoundException
- if file not found
IOException
- if a read error occurs
ProcessingException
- if an exception is thrown by the processor
ParseException
- if a error occurs parsing the CSV linepublic int processFile(String filename, CSVSortedFieldMapProcessor processor) throws IOException, ProcessingException, ParseException
filename
- name of CSV fileprocessor
- handler to process the CSV lines
FileNotFoundException
- if file not found
IOException
- if a read error occurs
ProcessingException
- if an exception is thrown by the processor
ParseException
- if a error occurs parsing the CSV line
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