设为首页收藏本站

最大的系统仿真与系统优化公益交流社区

 找回密码
 注册

QQ登录

只需一步,快速开始

查看: 9821|回复: 0

[求助] 问jheatbugs-2001-03-28中某些代码

[复制链接]
发表于 2008-5-25 02:15:22 | 显示全部楼层 |阅读模式
5仿真币
HeatbugModelSwarm中buildActions部分,3个try分别是做什么?查了下refbook-java-2.2,解释太简略,还是不懂,高手指点,谢谢!代码如下:
" [, ~/ K/ I3 c# }
0 k) V9 w3 r# O public Object buildActions () {
' X% V7 Z, W" a1 t) d1 w    super.buildActions();! R/ |( |6 D2 ^- U# X' q8 G+ |. F  @' b
    ( V% B/ i% L* ~/ E% J! ], ~5 K
    // Create the list of simulation actions. We put these in
, ^" c2 u7 `& u/ k; T! o2 Q    // an action group, because we want these actions to be
& d! g: T7 ?, j, ]1 Q. c% L6 T    // executed in a specific order, but these steps should
# Z# S' c: g+ ?7 J4 A    // take no (simulated) time. The M(foo) means "The message
: ^/ v6 R' ?) v' B: K+ M    // called <foo>". You can send a message To a particular* ^& `  X0 l; z! J6 _
    // object, or ForEach object in a collection.
8 l* U2 \* ^/ G& E( W% F$ q/ |/ A        
. ?7 y1 E8 G6 ]' l9 t% E+ [. H    // Note we update the heatspace in two phases: first run- }5 u/ G: d+ r9 D9 C5 a7 ~& N9 l
    // diffusion, then run "updateWorld" to actually enact the
1 a8 B; C8 R9 }; E    // changes the heatbugs have made. The ordering here is0 v( X4 P# ~9 |6 g, S6 x
    // significant!6 ^* Z4 H% j% c
        ' m1 o0 E! e3 O1 s2 h! H
    // Note also, that with the additional3 M2 O; a* h+ a2 {
    // `randomizeHeatbugUpdateOrder' Boolean flag we can
9 r' U! H& h3 q6 g6 q8 `3 }; v    // randomize the order in which the bugs actually run
! ~, c6 k  z( o7 `4 _    // their step rule.  This has the effect of removing any+ i- {; ~1 B2 ?, v1 K$ }
    // systematic bias in the iteration throught the heatbug
$ n$ k0 w$ M- @. I    // list from timestep to timestep' o" X, \9 I3 b% o8 v, k+ [  C8 v2 y. o
        6 n" j  R6 ^2 [5 r# V
    // By default, all `createActionForEach' modelActions have
7 E! M, X. a7 E9 e    // a default order of `Sequential', which means that the2 \/ F% S( M  S+ h) S  g5 P
    // order of iteration through the `heatbugList' will be
' j. @8 S& ]2 G+ A1 U7 J    // identical (assuming the list order is not changed
* M% e: q% k2 ]& y3 |; i    // indirectly by some other process).
0 u2 |8 U! T8 d# L0 z' ^    : i- C( P2 Q" f# i+ i7 A
    modelActions = new ActionGroupImpl (getZone ());
. W+ o8 B, f1 @' _' H) a) L% ]
    try {
2 V/ y5 T9 o" v% ]0 q5 i      modelActions.createActionTo$message* b( O9 S+ ^. `0 l0 r3 p% s  h) P
        (heat, new Selector (heat.getClass (), "stepRule", false));
; T" M4 x9 l9 Y7 G7 p  A    } catch (Exception e) {
2 m7 j- b" w" t0 _      System.err.println ("Exception stepRule: " + e.getMessage ());1 D0 G$ a8 |, K- G: n3 h% D
    }
* d' q4 O5 p* y
+ m5 Y  \, h. {) Y2 J. K. j5 C    try {7 y2 W, s6 q' m: F1 U2 G
      Heatbug proto = (Heatbug) heatbugList.get (0);
' ~% @) h. H! l      Selector sel = , D- k- P8 A. g, _, H
        new Selector (proto.getClass (), "heatbugStep", false);& U; _! _  z$ b4 [% f
      actionForEach =! a6 N, Q* I) |
        modelActions.createFActionForEachHomogeneous$call
. B; b8 ]0 Z) D% S: q1 P( r        (heatbugList,
8 Z7 F( q: i  g/ t         new FCallImpl (this, proto, sel,9 W3 `' p0 F8 M1 z# ]
                        new FArgumentsImpl (this, sel)));+ ?. f; r. ~* z' _% A0 k
    } catch (Exception e) {6 r# k; [. m; N. R3 [$ C
      e.printStackTrace (System.err);+ X  k) W5 e3 {6 X+ k3 K$ v
    }
7 D+ u# [% M$ z! I   
; ?  U5 _' D# _3 P5 j, F5 d( O- ^    syncUpdateOrder ();7 h& h1 H0 F* Q' }) G4 {* p

. ?$ w6 y+ A0 [2 ^7 a% O  C    try {
, n5 V1 i0 b7 K2 p8 A2 Y      modelActions.createActionTo$message
1 x# x/ N# y- |: R8 s) |* z" z        (heat, new Selector (heat.getClass (), "updateLattice", false));
) H* u4 B- A# G% B0 Q& v' V    } catch (Exception e) {
4 y& r$ C" X6 f7 f- K, w      System.err.println("Exception updateLattice: " + e.getMessage ());9 G/ P& r" w, C+ H, v1 W: g4 V! Z
    }# L6 b5 B7 ]- l) {7 b5 i
        2 F$ q( ?% U: x8 T3 ?2 F; k
    // Then we create a schedule that executes the
# y+ ?" }2 l) K' M    // modelActions. modelActions is an ActionGroup, by itself it
; \1 B. T& j; e4 G+ C    // has no notion of time. In order to have it executed in
4 H( O" b" w0 W$ E% N    // time, we create a Schedule that says to use the
: C9 ?8 c+ q) B0 _! D" }    // modelActions ActionGroup at particular times.  This
, r3 H1 h% N7 ]8 w  K+ {9 w    // schedule has a repeat interval of 1, it will loop every9 q6 q$ D$ N+ r6 S4 }
    // time step.  The action is executed at time 0 relative to
# K9 C( r4 j" X1 N, R    // the beginning of the loop.
) ?) _2 }* Q; Q- C, S
: W  y8 n! {5 z! y3 t" @4 E    // This is a simple schedule, with only one action that is7 Q0 V; y% D8 `8 A; N
    // just repeated every time. See jmousetrap for more
8 f+ s# U7 `, z$ X1 H: s    // complicated schedules.! V  k( z3 S; o/ y  Q
  
- `: e  ^6 o- P# z+ q    modelSchedule = new ScheduleImpl (getZone (), 1);
1 E% ^' k/ k6 h- f" B0 ^6 ?9 L    modelSchedule.at$createAction (0, modelActions);
1 X8 a/ t& Y, b' z9 {        
5 c( R% y0 y3 C- |0 W: Q2 R' D6 W    return this;  {( E9 V8 F8 Z0 Y: L
  }
您需要登录后才可以回帖 登录 | 注册

本版积分规则

QQ|Archiver|手机版|SimulWay 道于仿真   

GMT+8, 2026-3-27 16:03 , Processed in 0.012245 second(s), 11 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表