org.alfresco.repo.content.selector

Class RootElementNameContentWorkerSelector

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.alfresco.repo.content.selector.RootElementNameContentWorkerSelector

All Implemented Interfaces:

ContentWorkerSelector, org.xml.sax.ContentHandler, org.xml.sax.DTDHandler, org.xml.sax.EntityResolver, org.xml.sax.ErrorHandler

public class RootElementNameContentWorkerSelector
extends org.xml.sax.helpers.DefaultHandler
implements ContentWorkerSelector

A selector that looks at the root node of an XML document to determine which worker to provide. There are many ways to identify XML documents and this is probably the simplest. Alternate implementations might execute a series of xpath statements or look for specific namespace declarations in the document. The net result is the same, i.e. given an XML document, a worker is provided to the caller.

Since:

2.1

Constructor Summary

Constructors

Constructor and Description
RootElementNameContentWorkerSelector()

Method Summary

Methods

Modifier and Type	Method and Description
ContentWorker	getWorker(org.alfresco.service.cmr.repository.ContentReader reader) Performs a match of the root element name to find the correct content worker.
void	init() Checks the configuration.
void	setSupportedMimetypes(java.util.Set supportedMimetypes) Optionally set the mimetypes supported.
void	setWorkers(java.util.Map workers) Set the workers to choose from.
void	startElement(java.lang.String uri, java.lang.String localName, java.lang.String qName, org.xml.sax.Attributes attributes)
java.lang.String	toString()

Methods inherited from class org.xml.sax.helpers.DefaultHandler

characters, endDocument, endElement, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Constructor Detail

RootElementNameContentWorkerSelector

public RootElementNameContentWorkerSelector()

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

setSupportedMimetypes

public void setSupportedMimetypes(java.util.Set supportedMimetypes)

Optionally set the mimetypes supported. They must be XML formats that the chosen parser will be able to handle.

Parameters:

supportedMimetypes - the list of mimetypes. The default is text/xml.

setWorkers

public void setWorkers(java.util.Map workers)

Set the workers to choose from.

Parameters:

workers - a map of ContentWorker instances keyed by root element name

init

public void init()

Checks the configuration.

getWorker

public ContentWorker getWorker(org.alfresco.service.cmr.repository.ContentReader reader)

Performs a match of the root element name to find the correct content worker.

Specified by:

getWorker in interface ContentWorkerSelector

Parameters:

reader - the content reader, providing the actual stream metadata and even the stream, if required.

Returns:

Return a worker that can operate on the content, or null if this identifier doesn't support the content.

startElement

public void startElement(java.lang.String uri,
                java.lang.String localName,
                java.lang.String qName,
                org.xml.sax.Attributes attributes)
                  throws org.xml.sax.SAXException

Specified by:

startElement in interface org.xml.sax.ContentHandler

Overrides:

startElement in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException