source: branches/blt4/gui/scripts/tool.tcl @ 2646

Last change on this file since 2646 was 2646, checked in by gah, 13 years ago
File size: 13.7 KB
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1# ----------------------------------------------------------------------
2#  COMPONENT: tool - represents an entire tool
3#
4#  This object represents an entire tool defined by Rappture.
5#  Each tool resides in an installation directory with other tool
6#  resources (libraries, examples, etc.).  Each tool is defined by
7#  its inputs and outputs, which are tied to various widgets in the
8#  GUI.  Each tool tracks the inputs, knows when they're changed,
9#  and knows how to run itself to produce new results.
10# ======================================================================
11#  AUTHOR:  Michael McLennan, Purdue University
12#  Copyright (c) 2004-2005  Purdue Research Foundation
13#
14#  See the file "license.terms" for information on usage and
15#  redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
16# ======================================================================
17package require BLT
18
19itcl::class Rappture::Tool {
20    inherit Rappture::ControlOwner
21
22    constructor {xmlobj installdir args} {
23        Rappture::ControlOwner::constructor ""
24    } { # defined below }
25
26    destructor { # defined below }
27
28    public method installdir {} { return $_installdir }
29
30    public method run {args}
31    public method abort {}
32    public method reset {}
33
34    protected method _mkdir {dir}
35    protected method _output {data}
36
37    private variable _origxml ""     ;# copy of original XML (for reset)
38    private variable _installdir ""  ;# installation directory for this tool
39    private variable _outputcb ""    ;# callback for tool output
40    private common job               ;# array var used for blt::bgexec jobs
41    private common jobnum 0          ;# counter for unique job number
42
43    # get global resources for this tool session
44    public proc resources {{option ""}}
45
46    public common _resources
47    public proc setAppName {name}   { set _resources(-appname) $name }
48    public proc setHubName {name}   { set _resources(-hubname) $name }
49    public proc setHubURL {name}    { set _resources(-huburl) $name }
50    public proc setSession {name}   { set _resources(-session) $name }
51    public proc setJobPrt {name}    { set _resources(-jobprotocol) $name }
52    public proc setResultDir {name} { set _resources(-resultdir) $name }
53}
54
55# must use this name -- plugs into Rappture::resources::load
56proc tool_init_resources {} {
57    Rappture::resources::register \
58        application_name  Rappture::Tool::setAppName \
59        application_id    Rappture::Tool::setAppId \
60        hub_name          Rappture::Tool::setHubName \
61        hub_url           Rappture::Tool::setHubURL \
62        session_token     Rappture::Tool::setSession \
63        job_protocol      Rappture::Tool::setJobPrt \
64        results_directory Rappture::Tool::setResultDir
65}
66
67# ----------------------------------------------------------------------
68# CONSTRUCTOR
69# ----------------------------------------------------------------------
70itcl::body Rappture::Tool::constructor {xmlobj installdir args} {
71    if {![Rappture::library isvalid $xmlobj]} {
72        error "bad value \"$xmlobj\": should be Rappture::Library"
73    }
74    set _xmlobj $xmlobj
75
76    # stash a copy of the original XML for later "reset" operations
77    set _origxml [Rappture::LibraryObj ::#auto "<?xml version=\"1.0\"?><run/>"]
78    $_origxml copy "" from $_xmlobj ""
79
80    if {![file exists $installdir]} {
81        error "directory \"$installdir\" doesn't exist"
82    }
83    set _installdir $installdir
84
85    eval configure $args
86}
87
88# ----------------------------------------------------------------------
89# DESTRUCTOR
90# ----------------------------------------------------------------------
91itcl::body Rappture::Tool::destructor {} {
92    itcl::delete object $_origxml
93}
94
95# ----------------------------------------------------------------------
96# USAGE: resources ?-option?
97#
98# Clients use this to query information about the tool.
99# ----------------------------------------------------------------------
100itcl::body Rappture::Tool::resources {{option ""}} {
101    if {$option == ""} {
102        return [array get _resources]
103    }
104    if {[info exists _resources($option)]} {
105        return $_resources($option)
106    }
107    return ""
108}
109
110# ----------------------------------------------------------------------
111# USAGE: run ?<path1> <value1> <path2> <value2> ...? ?-output <callbk>?
112#
113# This method causes the tool to run.  All widgets are synchronized
114# to the current XML representation, and a "driver.xml" file is
115# created as the input for the run.  That file is fed to the tool
116# according to the <tool><command> string, and the job is executed.
117#
118# Any "<path> <value>" arguments are used to override the current
119# settings from the GUI.  This is useful, for example, when filling
120# in missing simulation results from the analyzer.
121#
122# If the -output argument is included, then the next arg is a
123# callback command for output messages.  Any output that comes in
124# while the tool is running is sent back to the caller, so the user
125# can see progress running the tool.
126#
127# Returns a list of the form {status result}, where status is an
128# integer status code (0=success) and result is the output from the
129# simulator.  Successful output is something like {0 run1293921.xml},
130# where 0=success and run1293921.xml is the name of the file containing
131# results.
132# ----------------------------------------------------------------------
133itcl::body Rappture::Tool::run {args} {
134    global errorInfo
135
136    #
137    # Make sure that we save the proper application name.
138    # Actually, the best place to get this information is
139    # straight from the "installtool" script, but just in
140    # case we have an older tool, we should insert the
141    # tool name from the resources config file.
142    #
143    if {[info exists _resources(-appname)]
144          && "" != $_resources(-appname)
145          && "" == [$_xmlobj get tool.name]} {
146        $_xmlobj put tool.name $_resources(-appname)
147    }
148
149    # sync all widgets to the XML tree
150    sync
151
152    # if there are any args, use them to override parameters
153    set _outputcb ""
154    foreach {path val} $args {
155        if {$path == "-output"} {
156            set _outputcb $val
157        } else {
158            $_xmlobj put $path.current $val
159        }
160    }
161
162    foreach item {control output error} { set job($item) "" }
163
164    # write out the driver.xml file for the tool
165    set file "driver[pid].xml"
166    set status [catch {
167        set fid [open $file w]
168        puts $fid "<?xml version=\"1.0\"?>"
169        puts $fid [$_xmlobj xml]
170        close $fid
171    } result]
172
173    # set limits for cpu time
174    set limit [$_xmlobj get tool.limits.cputime]
175    if {"" == $limit || [catch {Rappture::rlimit set cputime $limit}]} {
176        Rappture::rlimit set cputime 900  ;# 15 mins by default
177    }
178
179    # execute the tool using the path from the tool description
180    if {$status == 0} {
181        set cmd [$_xmlobj get tool.command]
182        regsub -all @tool $cmd $_installdir cmd
183        regsub -all @driver $cmd $file cmd
184        regsub -all {\\} $cmd {\\\\} cmd
185        set cmd [string trimleft $cmd " "]
186
187        # if job_protocol is "submit", then use use submit command
188        if {[resources -jobprotocol] == "submit"} {
189            set cmd [linsert $cmd 0 submit --local]
190        }
191
192        # starting job...
193        Rappture::rusage mark
194
195        if {0 == [string compare -nocase -length 5 $cmd "ECHO "] } {
196            set status 0;
197            set job(output) [string range $cmd 5 end]
198        } else {
199            set status [catch {eval blt::bgexec \
200                ::Rappture::Tool::job(control) \
201                -keepnewline yes \
202                -killsignal SIGTERM \
203                -onoutput [list [itcl::code $this _output]] \
204                -output ::Rappture::Tool::job(output) \
205                -error ::Rappture::Tool::job(error) $cmd} result]
206
207            if { $status != 0 } {
208                foreach {pstatus pid mesg} $::Rappture::Tool::job(control) break
209                if { $pstatus != "EXITED" } {
210                    set result "Abnormal program termination \"$pstatus\": $mesg"
211                    return [list $status $result]
212                }
213            }
214        }
215        # ...job is finished
216        array set times [Rappture::rusage measure]
217        if {[resources -jobprotocol] != "submit"} {
218            set id [$_xmlobj get tool.id]
219            set vers [$_xmlobj get tool.version.application.revision]
220            set simulation simulation
221            if { $id != "" && $vers != "" } {
222                set pid [pid]
223                set simulation ${pid}_${id}_r${vers}
224            }
225            puts stderr "MiddlewareTime: job=[incr jobnum] event=$simulation start=$times(start) walltime=$times(walltime) cputime=$times(cputime) status=$status"
226
227            #
228            # Scan through stderr channel and look for statements that
229            # represent grid jobs that were executed.  The statements
230            # look like this:
231            #
232            # MiddlewareTime: job=1 event=simulation start=3.001094 ...
233            #
234            set subjobs 0
235            while {[regexp -indices {(^|\n)MiddlewareTime:( +[a-z]+=[^ \n]+)+(\n|$)} $job(error) match]} {
236                foreach {p0 p1} $match break
237                if {[string index $job(error) $p0] == "\n"} { incr p0 }
238
239                catch {unset data}
240                array set data {
241                    job 1
242                    event simulation
243                    start 0
244                    walltime 0
245                    cputime 0
246                    status 0
247                }
248                foreach arg [lrange [string range $job(error) $p0 $p1] 1 end] {
249                    foreach {key val} [split $arg =] break
250                    set data($key) $val
251                }
252                set data(job) [expr {$jobnum+$data(job)}]
253                set data(event) "subsimulation"
254                set data(start) [expr {$times(start)+$data(start)}]
255
256                set stmt "MiddlewareTime:"
257                foreach key {job event start walltime cputime status} {
258                    # add required keys in a particular order
259                    append stmt " $key=$data($key)"
260                    unset data($key)
261                }
262                foreach key [array names data] {
263                    # add anything else that the client gave -- venue, etc.
264                    append stmt " $key=$data($key)"
265                }
266                puts stderr $stmt
267                incr subjobs
268
269                # done -- remove this statement
270                set job(error) [string replace $job(error) $p0 $p1]
271            }
272            incr jobnum $subjobs
273        }
274
275    } else {
276        set job(error) "$result\n$errorInfo"
277    }
278    if {$status == 0} {
279        file delete -force -- $file
280    }
281
282    # see if the job was aborted
283    if {[regexp {^KILLED} $job(control)]} {
284        return [list 0 "ABORT"]
285    }
286
287    #
288    # If successful, return the output, which should include
289    # a reference to the run.xml file containing results.
290    #
291    if {$status == 0} {
292        set result [string trim $job(output)]
293        if {[regexp {=RAPPTURE-RUN=>([^\n]+)} $result match file]} {
294            set status [catch {Rappture::library $file} result]
295            if {$status != 0} {
296                global errorInfo
297                set result "$result\n$errorInfo"
298            }
299
300            # if there's a results_directory defined in the resources
301            # file, then move the run.xml file there for storage
302            if {[info exists _resources(-resultdir)]
303                  && "" != $_resources(-resultdir)} {
304                catch {
305                    if {![file exists $_resources(-resultdir)]} {
306                        _mkdir $_resources(-resultdir)
307                    }
308                    file rename -force -- $file $_resources(-resultdir)
309                }
310            }
311        } else {
312            set status 1
313            set result "Can't find result file in output.\nDid you call Rappture
314::result in your simulator?"
315        }
316        return [list $status $result]
317    } elseif {"" != $job(output) || "" != $job(error)} {
318        return [list $status [string trim "$job(output)\n$job(error)"]]
319    }
320    return [list $status $result]
321}
322
323# ----------------------------------------------------------------------
324# USAGE: _mkdir <directory>
325#
326# Used internally to create the <directory> in the file system.
327# The parent directory is also created, as needed.
328# ----------------------------------------------------------------------
329itcl::body Rappture::Tool::_mkdir {dir} {
330    set parent [file dirname $dir]
331    if {"." != $parent && "/" != $parent} {
332        if {![file exists $parent]} {
333            _mkdir $parent
334        }
335    }
336    file mkdir $dir
337}
338
339
340# ----------------------------------------------------------------------
341# USAGE: abort
342#
343# Clients use this during a "run" to abort the current job.
344# Kills the job and forces the "run" method to return.
345# ----------------------------------------------------------------------
346itcl::body Rappture::Tool::abort {} {
347    set job(control) "abort"
348}
349
350# ----------------------------------------------------------------------
351# USAGE: reset
352#
353# Resets all input values to their defaults.  Sometimes used just
354# before a run to reset to a clean state.
355# ----------------------------------------------------------------------
356itcl::body Rappture::Tool::reset {} {
357    $_xmlobj copy "" from $_origxml ""
358    foreach path [Rappture::entities -as path $_xmlobj input] {
359        if {[$_xmlobj element -as type $path.default] ne ""} {
360            set defval [$_xmlobj get $path.default]
361            $_xmlobj put $path.current $defval
362        }
363    }
364}
365
366# ----------------------------------------------------------------------
367# USAGE: _output <data>
368#
369# Used internally to send each bit of output <data> coming from the
370# tool onto the caller, so the user can see progress.
371# ----------------------------------------------------------------------
372itcl::body Rappture::Tool::_output {data} {
373    if {[string length $_outputcb] > 0} {
374        uplevel #0 $_outputcb [list $data]
375    }
376}
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