org.dlese.dpc.index.writer
Class ErrorFileIndexingWriter

java.lang.Object
  org.dlese.dpc.index.writer.FileIndexingServiceWriter
      org.dlese.dpc.index.writer.ErrorFileIndexingWriter

All Implemented Interfaces:

DocWriter

public class ErrorFileIndexingWriter

extends FileIndexingServiceWriter

Writes a Lucene Document that represents an error that has occured in in indexing a File. This writer is used by FileIndexingService. The error message and exception are also added to the default field for searching.

The Lucene Document fields that are created by this class are (in addition the the ones listed for FileIndexingServiceWriter):

error - Set to 'true' for all documents indexed by this writer. Not stored.
errormsg - The description of the error, for display. Stored.
exception - The name of the Java exception that was thrown. Stored.

Author:

John Weatherley

See Also:

FileIndexingServiceWriter, FileIndexingService

Constructor Summary

ErrorFileIndexingWriter(String errMsg, String exceptionName)
Constructor for the ErrorFileIndexingWriter object

Method Summary

protected void	addCustomFields(Document newDoc, Document existingDoc, File sourceFile) Adds the error message to the Lucene document.
protected void	destroy() Does nothing.
String	getDocType() Gets the docType, which is 'errordoc.'
String	getReaderClass() Gets the name of the concrete DocReader class that is used to read this type of Document, which is "ErrorDocReader".
void	init(File source, Document existingDoc) Does nothing.

Methods inherited from class org.dlese.dpc.index.writer.FileIndexingServiceWriter

abortIndexing, addToAdminDefaultField, addToDefaultField, create, getDeletedDoc, getExistingDoc, getFileIndexingService, getSourceDir, getSourceFile, getValidationReport, isValidationEnabled, prtln, prtlnErr, setDebug, setDefaultFieldName, setFileIndexingService, setValidationEnabled

Methods inherited from class java.lang.Object

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

Constructor Detail

ErrorFileIndexingWriter

public ErrorFileIndexingWriter(String errMsg,
                               String exceptionName)

Constructor for the ErrorFileIndexingWriter object

Parameters:

errMsg - A message indicating the error that occured when trying to index the file.

exceptionName - The name of the exception that was thrown when the error occured.

Method Detail

getDocType

public String getDocType()
                  throws Exception

Gets the docType, which is 'errordoc.'

Specified by:

getDocType in interface DocWriter

Specified by:

getDocType in class FileIndexingServiceWriter

Returns:

Returns 'errordoc.'

Throws:

Exception - If error.

getReaderClass

public String getReaderClass()

Gets the name of the concrete DocReader class that is used to read this type of Document, which is "ErrorDocReader".

Specified by:

getReaderClass in interface DocWriter

Specified by:

getReaderClass in class FileIndexingServiceWriter

Returns:

The STring "ErrorDocReader".

addCustomFields

protected final void addCustomFields(Document newDoc,
                                     Document existingDoc,
                                     File sourceFile)
                              throws Exception

Adds the error message to the Lucene document.

Specified by:

addCustomFields in class FileIndexingServiceWriter

Parameters:

newDoc - The new Document that is being created for this resource

existingDoc - An existing Document that currently resides in the index for the given resource, or null if none was previously present

sourceFile - The sourceFile that is being indexed.

Throws:

Exception - If an error occurs

init

public void init(File source,
                 Document existingDoc)
          throws Exception

Does nothing.

Specified by:

init in class FileIndexingServiceWriter

Parameters:

source - The source file being indexed

existingDoc - An existing Document that currently resides in the index for the given resource, or null if none was previously present

Throws:

Exception - If an error occured during set-up.

destroy

protected void destroy()

Does nothing.

Specified by:

destroy in class FileIndexingServiceWriter