loci.poi.ddf

Class DefaultEscherRecordFactory

java.lang.Object

loci.poi.ddf.DefaultEscherRecordFactory

All Implemented Interfaces:

EscherRecordFactory

public class DefaultEscherRecordFactory
extends Object
implements EscherRecordFactory

Generates escher records when provided the byte array containing those records.

Author:

Glen Stampoultzis, Nick Burch (nick at torchbox . com)

See Also:

EscherRecordFactory

Field Summary

Fields

Modifier and Type	Field and Description
private static Class[]	escherRecordClasses
private static Map	recordsMap

Constructor Summary

Constructors

Constructor and Description
DefaultEscherRecordFactory() Creates an instance of the escher record factory

Method Summary

Methods

Modifier and Type	Method and Description
EscherRecord	createRecord(byte[] data, int offset) Generates an escher record including the any children contained under that record.
private static Map	recordsToMap(Class[] records) Converts from a list of classes into a map that contains the record id as the key and the Constructor in the value part of the map.

Methods inherited from class java.lang.Object

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

Field Detail

escherRecordClasses

private static Class[] escherRecordClasses

recordsMap

private static Map recordsMap

Constructor Detail

DefaultEscherRecordFactory

public DefaultEscherRecordFactory()

Creates an instance of the escher record factory

Method Detail

createRecord

public EscherRecord createRecord(byte[] data,
                        int offset)

Generates an escher record including the any children contained under that record. An exception is thrown if the record could not be generated.

Specified by:

createRecord in interface EscherRecordFactory

Parameters:

data - The byte array containing the records

offset - The starting offset into the byte array

Returns:

The generated escher record

recordsToMap

private static Map recordsToMap(Class[] records)

Converts from a list of classes into a map that contains the record id as the key and the Constructor in the value part of the map. It does this by using reflection to look up the RECORD_ID field then using reflection again to find a reference to the constructor.

Parameters:

records - The records to convert

Returns:

The map containing the id/constructor pairs.