updatepolicycrl.java

一个agent 工具包,可以开发移动设备应用,考虑了安全措施

package SOMA.security.infrastructure.updatePolicy;


import java.util.Date;
import java.util.Calendar;
import java.io.PrintStream;

import iaik.x509.X509CRL;

import SOMA.security.infrastructure.Infrastructure;

public class UpdatePolicyCRL extends UpdatePolicy {

    // Sleeping Time in milli second
    // private long SleepTime = 60000;
    protected Infrastructure infrastructure;

    public PrintStream out;


    public UpdatePolicyCRL ( String msg , Infrastructure infrastructure , PrintStream out )
    {
      super ( new String( msg ) );
      this.infrastructure = infrastructure;
      this.out = out;
    }

    public UpdatePolicyCRL ( Infrastructure infrastructure )
    {
      this( new String( "Update Policy CRL LifeTime" ) , infrastructure , System.out );
    }

    public UpdatePolicyCRL ( String msg , Infrastructure infrastructure )
    {
      this( new String( msg ), infrastructure , System.out );
    }



    public boolean update ()
    {
      try {
       X509CRL[] crl = (infrastructure.getCertificateCRLList()).getCRLList();
                         //CertificateCRLList
       Date crlUpDate = null;

       if ( crl != null  )
        for ( int i=0 ; i<crl.length ; i++ )
         if ( i == 0 ) crlUpDate = crl[i].getNextUpdate ();
         else if ( 0 > crlUpDate.compareTo( crl[i].getNextUpdate () ) )
                crlUpDate = crl[i].getNextUpdate();

       Calendar rightNow = Calendar.getInstance();

       return ( ( crlUpDate == null ) ||
                ( 0 > crlUpDate.compareTo( rightNow.getTime() )   ));

      } catch ( Exception e ) { out.println(" Errore durante la valutazione delle date."); }

      return true;

    }

}