edu.uiuc.ndiipp.hubandspoke.utils.jhove
Class BaseApplicator

java.lang.Object
  edu.uiuc.ndiipp.hubandspoke.utils.jhove.BaseApplicator

Direct Known Subclasses:

PDFBaseApplicator

public class BaseApplicator
extends java.lang.Object

JhoveXSLApplicators that produce "base" metadata, i.e. the PREMIS object piece of the metadata that we need for all files.

Author:

Howard Ding

Constructor Summary

BaseApplicator()

Method Summary

org.w3c.dom.Node	parameterTransform(org.w3c.dom.Node jhoveInput, java.lang.String idType, java.lang.String idValue) This is a convenience method since these two parameters will always need to be suppplied in the creation of the PREMIS metadata.
org.w3c.dom.Node	transform(org.w3c.dom.Node jhoveInput) Actually perform the transform.
org.w3c.dom.Node	transform(org.w3c.dom.Node jhoveInput, java.lang.String... parameters) This class needed to be synchronized because is changes the javax parser DocumentBuilderFactory from the Saxon to the Xerces implementation and then back to Saxon before it returns.

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseApplicator

public BaseApplicator()

Method Detail

parameterTransform

public org.w3c.dom.Node parameterTransform(org.w3c.dom.Node jhoveInput,
                                           java.lang.String idType,
                                           java.lang.String idValue)
                                    throws javax.xml.transform.TransformerConfigurationException,
                                           javax.xml.transform.TransformerException

This is a convenience method since these two parameters will always need to be suppplied in the creation of the PREMIS metadata.

Parameters:

jhoveInput - The raw Jhove XML input

idType - The file ID type required by PREMIS

idValue - The file ID value required by PREMIS

Returns:

a DOM Node resulting from the transformation

Throws:

javax.xml.transform.TransformerConfigurationException

javax.xml.transform.TransformerException

transform

public org.w3c.dom.Node transform(org.w3c.dom.Node jhoveInput,
                                  java.lang.String... parameters)
                           throws javax.xml.transform.TransformerConfigurationException,
                                  javax.xml.transform.TransformerException

This class needed to be synchronized because is changes the javax parser DocumentBuilderFactory from the Saxon to the Xerces implementation and then back to Saxon before it returns. Without the synchronization, this property change could cause side effects in XMLBeans, which requires the Saxon implementation of DocumentBuilderFactory.

Parameters:

jhoveInput - The raw Jhove XML to transform

parameters - Variable length. Consists of parameter-name, parameter-value pairs of strings (so should always be an even number) to be passed to the stylesheet.

Returns:

A DOM Node containing the results of the transformation.

Throws:

javax.xml.transform.TransformerConfigurationException

javax.xml.transform.TransformerException

transform

public org.w3c.dom.Node transform(org.w3c.dom.Node jhoveInput)
                           throws javax.xml.transform.TransformerConfigurationException,
                                  javax.xml.transform.TransformerException

Actually perform the transform. This is what clients will presumably use.

Parameters:

jhoveInput - The raw Jhove XML to transform.

Returns:

A DOM Node containing the results of transformation.

Throws:

javax.xml.transform.TransformerConfigurationException

javax.xml.transform.TransformerException