package org.eclipse.aether.internal.impl;
import java.util.Calendar;
import javax.inject.Named;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.impl.UpdatePolicyAnalyzer;
import org.eclipse.aether.repository.RepositoryPolicy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Named
public class DefaultUpdatePolicyAnalyzer
implements UpdatePolicyAnalyzer
{
private static final Logger LOGGER = LoggerFactory.getLogger( DefaultUpdatePolicyAnalyzer.class );
public DefaultUpdatePolicyAnalyzer()
{
}
public String getEffectiveUpdatePolicy( RepositorySystemSession session, String policy1, String policy2 )
{
return ordinalOfUpdatePolicy( policy1 ) < ordinalOfUpdatePolicy( policy2 ) ? policy1 : policy2;
}
@SuppressWarnings( { "checkstyle:magicnumber" } )
private int ordinalOfUpdatePolicy( String policy )
{
if ( RepositoryPolicy.UPDATE_POLICY_DAILY.equals( policy ) )
{
return 1440;
}
else if ( RepositoryPolicy.UPDATE_POLICY_ALWAYS.equals( policy ) )
{
return 0;
}
else if ( policy != null && policy.startsWith( RepositoryPolicy.UPDATE_POLICY_INTERVAL ) )
{
return getMinutes( policy );
}
else
{
return Integer.MAX_VALUE;
}
}
public boolean isUpdatedRequired( RepositorySystemSession session, long lastModified, String policy )
{
boolean checkForUpdates;
if ( policy == null )
{
policy = "";
}
if ( RepositoryPolicy.UPDATE_POLICY_ALWAYS.equals( policy ) )
{
checkForUpdates = true;
}
else if ( RepositoryPolicy.UPDATE_POLICY_DAILY.equals( policy ) )
{
Calendar cal = Calendar.getInstance();
cal.set( Calendar.HOUR_OF_DAY, 0 );
cal.set( Calendar.MINUTE, 0 );
cal.set( Calendar.SECOND, 0 );
cal.set( Calendar.MILLISECOND, 0 );
checkForUpdates = cal.getTimeInMillis() > lastModified;
}
else if ( policy.startsWith( RepositoryPolicy.UPDATE_POLICY_INTERVAL ) )
{
int minutes = getMinutes( policy );
Calendar cal = Calendar.getInstance();
cal.add( Calendar.MINUTE, -minutes );
checkForUpdates = cal.getTimeInMillis() > lastModified;
}
else
{
checkForUpdates = false;
if ( !RepositoryPolicy.UPDATE_POLICY_NEVER.equals( policy ) )
{
LOGGER.warn( "Unknown repository update policy '{}', assuming '{}'",
policy, RepositoryPolicy.UPDATE_POLICY_NEVER );
}
}
return checkForUpdates;
}
@SuppressWarnings( { "checkstyle:magicnumber" } )
private int getMinutes( String policy )
{
int minutes;
try
{
String s = policy.substring( RepositoryPolicy.UPDATE_POLICY_INTERVAL.length() + 1 );
minutes = Integer.valueOf( s );
}
catch ( RuntimeException e )
{
minutes = 24 * 60;
LOGGER.warn( "Non-parseable repository update policy '{}', assuming '{}:1440'",
policy, RepositoryPolicy.UPDATE_POLICY_INTERVAL );
}
return minutes;
}
}