GroupDocs.Metadata for Java 18.1 Release Notes
This page contains release notes for GroupDocs.Metadata for Java 18.1.
Major Features
There are 3 new features in this regular monthly release. The most notable are:
- Implement ability to read metadata of EPUB format
- Implement ability to detect EPUB e-book format
- Implement ability to read DublinCore metadata in EPUB format
All Changes
| Key | Summary | Category |
|---|---|---|
| METADATANET-717 | Implement ability to read metadata of EPUB format | New Feature |
| METADATANET-2133 | Implement ability to detect EPUB e-book format | New Feature |
| METADATANET-2134 | Implement ability to read DublinCore metadata in EPUB format | New Feature |
Public API and Backward Incompatible Changes
This section lists public API changes that were introduced in GroupDocs.Metadata for Java 18.1. It includes not only new and obsoleted public methods, but also a description of any changes in the behavior behind the scenes in GroupDocs.Metadata which may affect existing code. Any behavior introduced that could be seen as a regression and modifies existing behavior is especially important and is documented here.
Implement ability to read metadata of EPUB format
Description
Implement ability to read metadata of EPUB e-book format
Public API changes
Added EpubFormat class into namespace GroupDocs.Metadata.Formats.Ebook
Added EpubMetadata class into namespace GroupDocs.Metadata.Formats.Ebook
Usecases
This example demonstrates how to read metadata of EPUB e-book format
Java
// path to the EPUB file
String file = "C:\\\\Jack_London_Biography.epub";
// open EPUB file
EpubFormat epub = new EpubFormat(file);
// read EPUB metadata
EpubMetadata metadata = epub.getEpubMetadata();
// get keys
String[] keys = metadata.getKeys();
for(String key: keys)
{
// get next metadata property
MetadataProperty property = metadata.readByStringKey(key);
// and print it
System.out.println(property);
}
Implement ability to detect EPUB e-book format
Description
Implement ability to detect EPUB e-book format
Public API changes
Added EpubFormat class into namespace GroupDocs.Metadata.Formats.Ebook
Usecases
This example demonstrates how to detect EPUB e-book format
Java
// path to the file
String file = "C:\\\\download files\\\\wells-anticipations.epub";
// init FileFormatChecker
FileFormatChecker formatChecker = new FileFormatChecker(file);
// validate format
boolean isEpub = formatChecker.verifyFormat(DocumentType.Epub);
// and print appropriate message if success
if(isEpub)
{
System.out.println("Is EPUB");
}
Implement ability to read DublinCore metadata in EPUB format
Description
Implement ability to read DublinCore metadata of EPUB e-book format
Public API changes
Added DublinCoreMetadata class into namespace GroupDocs.Metadata
Usecases
This example demonstrates how to read DublinCore metadata of EPUB e-book format
Java
// path to the EPUB file
String file = "C:\\\\download files\\\\wells-anticipations.epub";
// open EPUB file
EpubFormat epub = new EpubFormat(file);
// read DublinCore metadata
DublinCoreMetadata dublinCore = epub.getDublinCore();
// get dc title
System.out.printf("Title = %s\n", dublinCore.getTitle());
// get creator
System.out.printf("Creator = %s\n", dublinCore.getCreator());
// get dc publisher
System.out.printf("Publisher = %s\n", dublinCore.getPublisher());
// get dc description
System.out.printf("Description = %s\n", dublinCore.getDescription());
// get language
System.out.printf("Language = %s\n", dublinCore.getLanguage());
// get format
System.out.printf("Format = %s\n", dublinCore.getFormat());