com.wewebu.ow.server.app
Class OwDocumentImportItemContentElement

java.lang.Object
  com.wewebu.ow.server.app.OwDocumentImportItemContentElement

All Implemented Interfaces:

OwContentElement

public class OwDocumentImportItemContentElement
extends Object
implements OwContentElement

Standard OwContentElement implementation that is wrapped around an OwDocumentImportItem.
Used by the OwDocumentImportItemContentCollection to represent the single pages (aka content streams) of the content collection.

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All rights reserved.

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See Also:

OwDocumentImportItemContentCollection

Field Summary

protected int	m_contentType the content type of this element
protected OwDocumentImportItem	m_importedDocument the imported document the content collection is based on
protected int	m_page the page number of this element

Constructor Summary

OwDocumentImportItemContentElement(int contentType_p, int page_p, OwDocumentImportItem importedDocument_p)
Create a new OwDocumentImportItemContentElement that represents a page (aka.

Method Summary

String	getContentFilePath() Returns the file path to the content (optional, only available if content is stored locally). NOTE: This function is only used for ECM Systems which can only download through files.
Object	getContentObject() Returns the content object The content representation is of type Object
int	getContentRepresentation() get the content representation, which can be either url, stream or object
InputStream	getContentStream(OutputStream out_p) Returns the content from the object.
String	getContentURL() Returns the URL to the resource where the content can be retrieved.
String	getMIMEParameter() retrieve the MIME parameter for the specified page number
String	getMIMEType() retrieve the MIME type for the specified page number
int	getPageNumber(int lPageIndex_p) retrieve the page number for the given zero based index NOTE: the Page numbers might be arbitrary in the collection in order to submit specific page content
boolean	isInputStreamNative() Check if getContentStream is based on an native InputStream or OutputStream. NOTE: getContentStream must implement for Input- and OutputStream.
void	releaseResources() method is called e.g.

Methods inherited from class java.lang.Object

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

Field Detail

m_contentType

protected int m_contentType

the content type of this element

m_page

protected int m_page

the page number of this element

m_importedDocument

protected OwDocumentImportItem m_importedDocument

the imported document the content collection is based on

Constructor Detail

OwDocumentImportItemContentElement

public OwDocumentImportItemContentElement(int contentType_p,
                                          int page_p,
                                          OwDocumentImportItem importedDocument_p)

Create a new OwDocumentImportItemContentElement that represents a page (aka. content stream) of an imported document.

Parameters:

contentType_p - designating the type of content (CONTENT_TYPE_DOCUMENT, CONTENT_TYPE_ANNOTATION,...)

page_p - int Page number to set

Method Detail

getContentURL

public String getContentURL()
                     throws Exception

Returns the URL to the resource where the content can be retrieved.

Specified by:

getContentURL in interface OwContentElement

Returns:

the URL to the resource where the content can be retrieved

Throws:

Exception

isInputStreamNative

public boolean isInputStreamNative()

Check if getContentStream is based on an native InputStream or OutputStream.
NOTE:
getContentStream must implement for Input- and OutputStream. However for optimization the ContentCollection will tell, whether it is based on an InputStream or an OutputStream.

Specified by:

isInputStreamNative in interface OwContentElement

Returns:

true = InputStream is native, false = OutputStream is native

getContentFilePath

public String getContentFilePath()
                          throws Exception

Returns the file path to the content (optional, only available if content is stored locally).
NOTE:
This function is only used for ECM Systems which can only download through files. If a FilePath exists, a stream will also exist. The FilePath is optional, it can not be guranteed to exist.

Specified by:

getContentFilePath in interface OwContentElement

Returns:

String with path to a file where the content can be found or null if file is not available

Throws:

Exception

getContentStream

public InputStream getContentStream(OutputStream out_p)
                             throws Exception

Returns the content from the object. If the document is a multipage document, the first page is retrieved unless otherwise set in setPage(...) NOTE: For performance and optimization reasons both the optional return of an InputStream and writing to the given OutputStream MUST be implemented

Specified by:

getContentStream in interface OwContentElement

Parameters:

out_p - optional OutputStream, if set the method writes the OutputStream and returns null, otherwise it returns an InputStream

Returns:

content from the object, or throws OwContentNotFoundException if no content is available

Throws:

Exception

getContentObject

public Object getContentObject()
                        throws Exception

Returns the content object The content representation is of type Object

Specified by:

getContentObject in interface OwContentElement

Returns:

Object to content access

Throws:

Exception

getContentRepresentation

public int getContentRepresentation()
                             throws Exception

get the content representation, which can be either url, stream or object

Specified by:

getContentRepresentation in interface OwContentElement

Returns:

int with content representation type

Throws:

Exception

getPageNumber

public int getPageNumber(int lPageIndex_p)
                  throws Exception

retrieve the page number for the given zero based index NOTE: the Page numbers might be arbitrary in the collection in order to submit specific page content

Specified by:

getPageNumber in interface OwContentElement

Parameters:

lPageIndex_p - zero based page index for the pages in the collection

Returns:

long actual page number

Throws:

Exception

getMIMEType

public String getMIMEType()
                   throws Exception

retrieve the MIME type for the specified page number

Specified by:

getMIMEType in interface OwContentElement

Returns:

String Mimetype

Throws:

Exception

getMIMEParameter

public String getMIMEParameter()
                        throws Exception

retrieve the MIME parameter for the specified page number

Specified by:

getMIMEParameter in interface OwContentElement

Returns:

String Mimeparameter

Throws:

Exception

releaseResources

public void releaseResources()

Description copied from interface: OwContentElement

method is called e.g. by GetContent servlet after the content is consumed. Can be used to release resources e.g. streams, Interactions, Connections etc. AFTER content is fetched.

Specified by:

releaseResources in interface OwContentElement

See Also:

OwContentElement.releaseResources()