hdt-java | HDT Java library and tools | Data Manipulation library

by rdfhdt Java Version: v3.0.9 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | hdt-java Summary

hdt-java is a Java library typically used in Utilities, Data Manipulation applications. hdt-java has no bugs, it has no vulnerabilities, it has build file available and it has low support. However hdt-java has a Non-SPDX License. You can download it from GitHub, Maven.

HDT-lib is a Java Library that implements the W3C Submission (of the RDF HDT (Header-Dictionary-Triples) binary format for publishing and exchanging RDF data at large scale. Its compact representation allows storing RDF in fewer space, providing at the same time direct access to the stored information. This is achieved by depicting the RDF graph in terms of three main components: Header, Dictionary and Triples. The Header includes extensible metadata required to describe the RDF data set and details of its internals. The Dictionary organizes the vocabulary of strings present in the RDF graph by assigning numerical IDs to each different string. The Triples component comprises the internal structure of the RDF graph in a compressed form.

Support

Quality

Security

License

Reuse

Support

hdt-java has a low active ecosystem.

It has 88 star(s) with 64 fork(s). There are 18 watchers for this library.

It had no major release in the last 12 months.

There are 19 open issues and 79 have been closed. On average issues are closed in 567 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of hdt-java is v3.0.9

Quality

hdt-java has 0 bugs and 0 code smells.

Security

hdt-java has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

hdt-java code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

hdt-java has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

hdt-java releases are available to install and integrate.

Deployable package is available in Maven.

Build file is available. You can build the component from source.

Top functions reviewed by kandi - BETA

kandi has reviewed hdt-java and discovered the below as its top functions. This is intended to give you an instant insight into hdt-java implemented functionality, and help decide if they suit your requirements.

Catmapping between two dictionaries
Process module classes and args .
Get the plan for a given query
Creates the index memory memory
Unescapes a string .
Select 1 .
Selects a bit zero .
Maps a HDT file .
Translate a binding ID into the trie .
Generates the total appearance count .

Get all kandi verified functions for this library.

hdt-java Key Features

No Key Features are available at this moment for hdt-java.

hdt-java Examples and Code Snippets

No Code Snippets are available at this moment for hdt-java.

Community Discussions

Trending Discussions on hdt-java

java.lang.OutOfMemoryError when plenty of memory left (94GB / 200GB Xmx)

QUESTION

java.lang.OutOfMemoryError when plenty of memory left (94GB / 200GB Xmx)

Asked 2018-Nov-24 at 21:22

I am trying to create large RDF/HDT files, which in turn means reading large files into memory, etc. Now, that is not really an issue since the server has 516GB of memory, around 510GB of which are free.

I am using the rdfhdt library to create the files, which works just fine. However, for one specific file, I keep getting an OutOfMemoryError, with no real reason as to why. Here is the stack trace:

...

ANSWER

Answered 2018-Nov-24 at 21:22

Due to Java's maximum array length, a ByteArrayOutputStream can not hold more than 2GB of data. This is true regardless of your current amount of RAM or memory limits. Here's the code you're hitting:

Source https://stackoverflow.com/questions/53462161

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install hdt-java

You can download it from GitHub, Maven.
You can use hdt-java like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the hdt-java component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: