GeoNetwork is a catalog application to manage spatially referenced resources. It provides powerful metadata editing and search functions as well as an interactive web map viewer. It is currently used in numerous Spatial Data Infrastructure initiatives across the world.

Official deegree repository providing geospatial core libraries, data access and advanced OGC web service implementations

Metadata Harvester for Esri Geoportal Server

deegree security component for protecting OGC Web Services

I am a CSE undergrad from ITER , Bbsr .These are the CSW's Java Assignment solutions .I am providing these codes for only reference ,not for copying so try write your own code using these provided codes as reference.Happy Coding 😃

Application to retrieve a set of metadata from a CSW endpoint and to validate them with a validator, such as the INSPIRE validator.