Package edu.ucsb.nceas.metacat.systemmetadata

Class ChecksumsManager

java.lang.Object
edu.ucsb.nceas.metacat.systemmetadata.ChecksumsManager
public class ChecksumsManager extends Object
The class to save, get and query checksums from db for a pid
Author:
Tao

  • Constructor Summary

    Constructors
    Constructor
    Description
    ChecksumsManager()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    delete(org.dataone.service.types.v1.Identifier pid, DBConnection conn)
    Delete the checksums from the table for the given pid
    List<org.dataone.service.types.v1.Checksum>
    get(org.dataone.service.types.v1.Identifier pid)
    Find all checksums for the given pid.
    List<org.dataone.service.types.v1.Identifier>
    query(org.dataone.service.types.v1.Checksum checksum)
    Find the list of pid which has the checksum matching the given value.
    void
    save(org.dataone.service.types.v1.Identifier id, Map<String,String> checksums, DBConnection dbConn)
    Save the checksums into database.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • ChecksumsManager

      public ChecksumsManager()

  • Method Details

    • save

      public void save(org.dataone.service.types.v1.Identifier id, Map<String,String> checksums, DBConnection dbConn) throws SQLException, org.dataone.service.exceptions.ServiceFailure
      Save the checksums into database. The callers need to provide the database connection
      Parameters:
      id - the identifier which has the checksums
      checksums - the checksums map whose key is algorithm and value is the checksum value
      dbConn - the connection used to connect database
      Throws:
      SQLException
      org.dataone.service.exceptions.ServiceFailure

    • get

      public List<org.dataone.service.types.v1.Checksum> get(org.dataone.service.types.v1.Identifier pid) throws org.dataone.service.exceptions.InvalidRequest, SQLException
      Find all checksums for the given pid. An empty list will be returned if nothing was found.
      Parameters:
      pid - the identifier to identify the checksum
      Returns:
      a list of checksums for the pid. An empty list will be returned if nothing was found.
      Throws:
      org.dataone.service.exceptions.InvalidRequest
      SQLException

    • query

      public List<org.dataone.service.types.v1.Identifier> query(org.dataone.service.types.v1.Checksum checksum) throws org.dataone.service.exceptions.InvalidRequest, SQLException
      Find the list of pid which has the checksum matching the given value. An empty list will be returned if no matching.
      Parameters:
      checksum - the checksum should be matched
      Returns:
      the list of pid matching the given checksum. An empty list will be returned if no matching
      Throws:
      org.dataone.service.exceptions.InvalidRequest
      SQLException

    • delete

      public void delete(org.dataone.service.types.v1.Identifier pid, DBConnection conn) throws SQLException
      Delete the checksums from the table for the given pid
      Parameters:
      pid - the pid which will be deleted
      conn - the connection which will be used to delete
      Throws:
      SQLException