Package digilib.meta

Class IndexMetaAuthLoader

java.lang.Object

digilib.meta.IndexMetaAuthLoader

public class IndexMetaAuthLoader
extends Object

Class loading index.meta files extracting image file related information. Extracts into the MetadataMap all tags in the meta/img tag as key-value pairs and information from the meta/access tag under the "access" key.

 
   <meta>
     <img>
       <original-dpi>600</original-dpi>
     </img>
     <access-conditions>
       <access type="group">
         <name>digigroup</name>
       </access>
     </access-conditions>
   </meta>
 
 

Returns a map with filenames and MetadataMaps with directory-wide information under the key "":

   {
   "pageimg/page140r.jpg" : {"original-dpi" : 300}
   "" : { "access" : "group:digigroup", "original-dpi" : 600}, 
   }
 

Implemented using javax.xml.stream.XMLStreamReader.

Author:

Robert Casties

See Also:

• index.meta spec

Field Summary

Fields

Modifier and Type	Field	Description
protected String[]	accessNamePath
protected String[]	accessPath
protected String	accessTag
protected String[]	fileMetaPath
protected String[]	fileNamePath
protected String[]	filePathPath
protected Map<String,MetadataMap>	files
protected String	fileTag
protected String	imgTag
protected static final org.slf4j.Logger	logger
protected String	metaTag

Constructor Summary

Constructors

Constructor	Description
IndexMetaAuthLoader()

Method Summary

Modifier and Type	Method	Description
Map<String,MetadataMap>	loadUri(URI uri)	Load and parse a file (as URI).
protected MetadataMap	readAccessToMap(MetadataMap map)	Reads access tag into map.
protected boolean	readAll()	Read the whole stream.
protected MetadataMap	readMetaTag(MetadataMap map)	Read meta tag into map.
protected MetadataMap	readTagToMap(MetadataMap map)	Reads contents of current tag into map with the tag name as key and the content as value.
protected boolean	tagsMatchPath(String[] path)	Returns if the tag names in path match the current stack of tag names in tags.

Methods inherited from class java.lang.Object

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

Field Details

logger

protected static final org.slf4j.Logger logger

metaTag

protected String metaTag

fileTag

protected String fileTag

fileNamePath

protected String[] fileNamePath

filePathPath

protected String[] filePathPath

fileMetaPath

protected String[] fileMetaPath

imgTag

protected String imgTag

accessTag

protected String accessTag

accessPath

protected String[] accessPath

accessNamePath

protected String[] accessNamePath

files

protected Map<String,MetadataMap> files

Constructor Details

IndexMetaAuthLoader

public IndexMetaAuthLoader()

Method Details

tagsMatchPath

protected boolean tagsMatchPath(String[] path)

Returns if the tag names in path match the current stack of tag names in tags.

Parameters:

path - the path

Returns:

tags match path

readAll

protected boolean readAll()
                   throws XMLStreamException

Read the whole stream.

Returns:

false

Throws:

XMLStreamException - on error

readTagToMap

protected MetadataMap readTagToMap(MetadataMap map)
                            throws XMLStreamException

Reads contents of current tag into map with the tag name as key and the content as value.

Parameters:

map - the MetadataMap

Returns:

the MetadataMap

Throws:

XMLStreamException - on error

readAccessToMap

protected MetadataMap readAccessToMap(MetadataMap map)
                               throws XMLStreamException

Reads access tag into map.

Parameters:

map - the MetadataMap

Returns:

the MetadataMap

Throws:

XMLStreamException - on error

readMetaTag

protected MetadataMap readMetaTag(MetadataMap map)
                           throws XMLStreamException

Read meta tag into map.

Parameters:

map - the MetadataMap

Returns:

the MetadataMap

Throws:

XMLStreamException - on error

loadUri

public Map<String,MetadataMap> loadUri(URI uri)
                                throws IOException

Load and parse a file (as URI). returns HashMap with list data

Parameters:

uri - the URI

Returns:

the metadata

Throws:

IOException - on error