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package com.sun.enterprise.security;
import java.security.Permission;
import com.sun.enterprise.security.CachedPermission;
import com.sun.enterprise.security.PermissionCache;
/**
* This class is
* @author Ron Monzillo
*/
public class CachedPermissionImpl extends Object implements CachedPermission {
PermissionCache permissionCache;
Permission permission;
boolean granted;
Epoch epoch;
public CachedPermissionImpl(PermissionCache c, Permission p) {
this.permissionCache = c;
this.permission = p;
epoch = new Epoch();
}
public Permission getPermission() {
return this.permission;
}
public PermissionCache getPermissionCache() {
return this.permissionCache;
}
//synchronization done in PermissionCache
public boolean checkPermission() {
boolean granted = false;
if (permissionCache != null) {
granted = permissionCache.checkPermission(this.permission,this.epoch);
}
return granted;
}
// used to hold last result obtained from cache and cache epoch.
// epoch is used by PermissionCache to determine when result is out of date.
class Epoch {
int epoch;
boolean granted;
Epoch() {
this.epoch = 0;
this.granted = false;
}
}
}
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