+++ /dev/null
-/*
- * Copyright (c) 2003-2005 The BISON Project
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-package peersim.cdsim;
-
-import peersim.core.CommonState;
-
-
-/**
- * This is the common state of a cycle driven simulation that all objects see.
- * It contains additional information, specific to the cycle driven model,
- * in addition to the info in {@link peersim.core.CommonState}.
- */
-public class CDState extends CommonState {
-
-
-// ======================= fields ==================================
-// =================================================================
-
-/**
- * Current time within the current cycle.
- * Note that {@link #cycle} gives the cycle id to which this value is relative.
- */
-private static int ctime = -1;
-
-/**
- * Current cycle in the simulation. It makes sense only in the case of a
- * cycle based simulator, that is, cycle based simulators will maintain this
- * value, others will not. It still makes sense to keep it separate from
- * {@link #time} because it is an int, while time is a long.
- */
-private static int cycle = -1;
-
-
-// ======================== initialization =========================
-// =================================================================
-
-
-static {}
-
-/** to avoid construction */
-private CDState() {}
-
-// ======================= methods =================================
-// =================================================================
-
-
-/**
-* Returns true if and only if there is a cycle driven simulation going on.
-*/
-public static boolean isCD() { return cycle >= 0; }
-
-//-----------------------------------------------------------------
-
-/**
- * Returns the current cycle.
- * Note that {@link #getTime()} returns the same value.
- * @throws UnsupportedOperationException if no cycle-driven state is available
- */
-public static int getCycle()
-{
- if( cycle >= 0 ) return cycle;
- else throw new UnsupportedOperationException(
- "Cycle driven state accessed when "+
- "no cycle state information is available.");
-}
-
-//-----------------------------------------------------------------
-
-/**
- * Sets current cycle. Resets also cycle time to 0. It also calls
- * {@link #setTime(long)} with the given parameter, to make sure
- * {@link #getTime()} is indeed independent of the simulation model.
- */
-public static void setCycle(int t)
-{
- cycle = t;
- ctime = 0;
- setTime(t);
-}
-
-//-----------------------------------------------------------------
-
-/**
- * Returns current cycle as an Integer object.
- * @throws UnsupportedOperationException if no cycle-driven state is available
- */
-public static Integer getCycleObj()
-{
- if( cycle >= 0 ) return Integer.valueOf(cycle);
- else throw new UnsupportedOperationException(
- "Cycle driven state accessed when "+
- "no cycle state information is available.");
-}
-
-//-----------------------------------------------------------------
-
-/**
- * Returns the current time within the current cycle.
- * Note that the time returned by {@link #getCycle} is the cycle id
- * in this case. In other words, it returns the number of nodes that have
- * already been visited in a given cycle.
- * @throws UnsupportedOperationException if no cycle-driven state is available
- */
-public static int getCycleT()
-{
- if( ctime >= 0 ) return ctime;
- else throw new UnsupportedOperationException(
- "Cycle driven state accessed when "+
- "no cycle state information is available.");
-}
-
-// -----------------------------------------------------------------
-
-public static void setCycleT(int t)
-{
- ctime = t;
-}
-}
-
-
