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73abe331 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
e1c93495 | 18 | Revision 1.6 2007/10/16 14:37:16 jgrosseo |
19 | changing to AMANDA protocol version 2 | |
20 | ||
4e3d5771 | 21 | Revision 1.5 2007/10/05 12:40:55 acolla |
22 | ||
23 | Result error code added to AliDCSClient data members (it was "lost" with the new implementation of TMap* GetAliasValues and GetDPValues). | |
24 | ||
1790d4b7 | 25 | Revision 1.4 2007/09/14 16:46:14 jgrosseo |
26 | 1) Connect and Close are called before and after each query, so one can | |
27 | keep the same AliDCSClient object. | |
28 | 2) The splitting of a query is moved to GetDPValues/GetAliasValues. | |
29 | 3) Splitting interval can be specified in constructor | |
30 | ||
b41b252a | 31 | Revision 1.3 2007/09/11 16:42:02 jgrosseo |
32 | starting modifying AliDCSClient to transparently switch between single and multi query | |
33 | first step: same alidcsclient can be used for several queries | |
34 | ||
bee83158 | 35 | Revision 1.2 2007/06/09 13:01:09 jgrosseo |
36 | Switching to retrieval of several DCS DPs at a time (multiDPrequest) | |
37 | ||
a038aa70 | 38 | Revision 1.1 2006/11/06 14:22:47 jgrosseo |
39 | major update (Alberto) | |
40 | o) reading of run parameters from the logbook | |
41 | o) online offline naming conversion | |
42 | o) standalone DCSclient package | |
43 | ||
eba76848 | 44 | Revision 1.6 2006/10/02 16:38:39 jgrosseo |
45 | update (alberto): | |
46 | fixed memory leaks | |
47 | storing of objects that failed to be stored to the grid before | |
48 | interfacing of shuttle status table in daq system | |
49 | ||
2bb7b766 | 50 | Revision 1.5 2006/08/15 10:50:00 jgrosseo |
51 | effc++ corrections (alberto) | |
52 | ||
4f0ab988 | 53 | Revision 1.4 2006/07/04 14:59:57 jgrosseo |
54 | revision of AliDCSValue: Removed wrapper classes, reduced storage size per value by factor 2 | |
55 | ||
45a493ce | 56 | Revision 1.3 2006/06/12 09:11:16 jgrosseo |
57 | coding conventions (Alberto) | |
58 | ||
58bc3020 | 59 | Revision 1.2 2006/03/07 07:52:34 hristov |
60 | New version (B.Yordanov) | |
61 | ||
d477ad88 | 62 | Revision 1.3 2005/11/17 17:47:34 byordano |
63 | TList changed to TObjArray | |
64 | ||
65 | Revision 1.2 2005/11/17 14:43:23 byordano | |
66 | import to local CVS | |
67 | ||
68 | Revision 1.1.1.1 2005/10/28 07:33:58 hristov | |
69 | Initial import as subdirectory in AliRoot | |
70 | ||
73abe331 | 71 | Revision 1.1.1.1 2005/09/12 22:11:40 byordano |
72 | SHUTTLE package | |
73 | ||
74 | Revision 1.3 2005/08/30 10:53:23 byordano | |
75 | some more descriptions added | |
76 | ||
77 | */ | |
78 | ||
79 | // | |
80 | // This class represents the AliDCSClient. | |
81 | // The client used for data retrieval from DCS server. | |
82 | // There are two way for retrieving data from the server. | |
83 | // 1) asking for DP (DataPoint) - usually changed frequently. | |
84 | // 2) asking for Alias (Alias) - alias should be the same through whole | |
85 | // experimnet. | |
86 | // | |
87 | // There are two type of read operations: | |
88 | // Asking for single alias/dp or asking for set of aliases/dp | |
89 | // | |
90 | // In case of ServerError the coresponding error code and | |
91 | // error string (description) could be got by GetServerErrorCode() and | |
92 | // GetServerErrorString() | |
93 | // | |
94 | ||
95 | #include "AliDCSClient.h" | |
73abe331 | 96 | #include "AliDCSValue.h" |
97 | #include "AliLog.h" | |
98 | ||
58bc3020 | 99 | #include <TSocket.h> |
d477ad88 | 100 | #include <TObjArray.h> |
73abe331 | 101 | #include <TMap.h> |
102 | #include <TObjString.h> | |
103 | #include <TSystem.h> | |
104 | ||
105 | ClassImp(AliDCSClient) | |
106 | ||
73abe331 | 107 | const char* AliDCSClient::fgkBadStateString = "BadState"; |
73abe331 | 108 | const char* AliDCSClient::fgkInvalidParameterString = "InvalidParameter"; |
73abe331 | 109 | const char* AliDCSClient::fgkTimeoutString = "Timeout"; |
73abe331 | 110 | const char* AliDCSClient::fgkBadMessageString = "BadMessage"; |
73abe331 | 111 | const char* AliDCSClient::fgkCommErrorString = "CommunicationError"; |
73abe331 | 112 | const char* AliDCSClient::fgkServerErrorString = "ServerError"; |
113 | ||
58bc3020 | 114 | //______________________________________________________________________ |
73abe331 | 115 | AliDCSClient::AliDCSClient(const char* host, Int_t port, UInt_t timeout, |
b41b252a | 116 | Int_t retries, Int_t multiSplit): |
117 | fSocket(NULL), fHost(host), fPort(port), fTimeout(timeout), fRetries(retries), fMultiSplit(multiSplit), | |
1790d4b7 | 118 | fServerErrorCode(AliDCSMessage::kNoneError), fServerError(""), fResultErrorCode(0) |
73abe331 | 119 | { |
120 | // | |
121 | // host: DCS server host | |
122 | // port: DCS server port | |
123 | // timeout: in case of communication error or socket read/write this | |
124 | // timeout will be used before the next try is made. | |
125 | // retries: the number of retries after which the connection is | |
126 | // is considered as invalid and error is returned. | |
127 | // | |
73abe331 | 128 | } |
129 | ||
58bc3020 | 130 | //______________________________________________________________________ |
bee83158 | 131 | AliDCSClient::~AliDCSClient() |
58bc3020 | 132 | { |
bee83158 | 133 | // destructor |
58bc3020 | 134 | |
bee83158 | 135 | Close(); |
58bc3020 | 136 | } |
137 | ||
138 | //______________________________________________________________________ | |
bee83158 | 139 | Bool_t AliDCSClient::Connect() |
58bc3020 | 140 | { |
bee83158 | 141 | // connects to the AMANDA server |
142 | ||
143 | Close(); | |
144 | ||
145 | Int_t tries = 0; | |
146 | while (tries < fRetries) | |
147 | { | |
148 | fSocket = new TSocket(fHost, fPort); | |
149 | if (fSocket->IsValid()) | |
150 | { | |
151 | AliDebug(1, Form("Connected to %s:%d", fHost.Data(), fPort)); | |
152 | fSocket->SetOption(kNoBlock, 1); | |
153 | return kTRUE; | |
154 | } | |
58bc3020 | 155 | |
bee83158 | 156 | AliDebug(1, Form("Connection timeout! tries <%d> ...", tries)); |
58bc3020 | 157 | |
73abe331 | 158 | delete fSocket; |
bee83158 | 159 | fSocket = NULL; |
160 | ||
161 | gSystem->Sleep(fTimeout); | |
162 | tries ++; | |
73abe331 | 163 | } |
bee83158 | 164 | |
165 | return kFALSE; | |
73abe331 | 166 | } |
167 | ||
58bc3020 | 168 | //______________________________________________________________________ |
169 | Int_t AliDCSClient::SendBuffer(const char* buffer, Int_t size) | |
170 | { | |
171 | // send buffer containing the message to the DCS server | |
73abe331 | 172 | |
173 | Int_t sentSize = 0; | |
174 | Int_t tries = 0; | |
175 | ||
176 | while (sentSize < size && tries < fRetries) { | |
177 | ||
178 | Int_t sResult = fSocket->Select(TSocket::kWrite, fTimeout); | |
179 | ||
180 | if (sResult == 0) { | |
181 | AliDebug(1, Form("Timeout! tries <%d> ...", tries)); | |
182 | tries ++; | |
183 | continue; | |
184 | ||
185 | } else if (sResult < 0) { | |
186 | AliDebug(1, Form("Communication error <%d>!", | |
187 | fSocket->GetErrorCode())); | |
188 | return AliDCSClient::fgkCommError; | |
189 | } | |
190 | ||
191 | sResult = fSocket->SendRaw(buffer + sentSize, size - sentSize, | |
192 | kDontBlock); | |
193 | ||
194 | if (sResult > 0) { | |
195 | sentSize += sResult; | |
196 | } else { | |
197 | AliDebug(1, Form("Communication error <%d>!", | |
198 | fSocket->GetErrorCode())); | |
199 | return AliDCSClient::fgkCommError; | |
200 | } | |
201 | } | |
202 | ||
203 | if (tries == fRetries) { | |
204 | return AliDCSClient::fgkTimeout; | |
205 | } | |
206 | ||
207 | return sentSize; | |
208 | } | |
209 | ||
58bc3020 | 210 | //______________________________________________________________________ |
211 | Int_t AliDCSClient::ReceiveBuffer(char* buffer, Int_t size) | |
212 | { | |
213 | // Receive message from the DCS server and fill buffer | |
73abe331 | 214 | |
215 | Int_t receivedSize = 0; | |
216 | Int_t tries = 0; | |
217 | ||
218 | while (receivedSize < size && tries < fRetries) { | |
219 | ||
220 | Int_t sResult = fSocket->Select(TSocket::kRead, fTimeout); | |
221 | ||
222 | if (sResult == 0) { | |
223 | AliDebug(1, Form("Timeout! tries <%d> ...", tries)); | |
224 | tries ++; | |
225 | continue; | |
226 | ||
227 | } else if (sResult < 0) { | |
228 | AliDebug(1, Form("Communication error <%d>", | |
229 | fSocket->GetErrorCode())); | |
230 | return AliDCSClient::fgkCommError; | |
231 | } | |
232 | ||
233 | sResult = fSocket->RecvRaw(buffer + receivedSize, | |
234 | size - receivedSize, kDontBlock); | |
235 | ||
236 | if (sResult > 0) { | |
237 | receivedSize += sResult; | |
238 | } else { | |
239 | AliDebug(1, Form("Communication error <%d>", | |
240 | fSocket->GetErrorCode())); | |
241 | return AliDCSClient::fgkCommError; | |
242 | } | |
243 | } | |
244 | ||
245 | if (tries == fRetries) { | |
246 | return AliDCSClient::fgkTimeout; | |
247 | } | |
248 | ||
249 | return receivedSize; | |
250 | } | |
251 | ||
58bc3020 | 252 | //______________________________________________________________________ |
253 | Int_t AliDCSClient::SendMessage(AliDCSMessage& message) | |
254 | { | |
255 | // send message to the DCS server | |
73abe331 | 256 | |
257 | message.StoreToBuffer(); | |
258 | ||
259 | AliDebug(2, "Sending message.\n"); | |
260 | message.Print(); | |
261 | ||
262 | return SendBuffer(message.GetMessage(), message.GetMessageSize()); | |
263 | } | |
264 | ||
58bc3020 | 265 | //______________________________________________________________________ |
4e3d5771 | 266 | Int_t AliDCSClient::ReceiveMessage(AliDCSMessage& message) |
58bc3020 | 267 | { |
268 | // receive message from the DCS server | |
73abe331 | 269 | |
270 | char header[HEADER_SIZE]; | |
271 | ||
272 | Int_t sResult; | |
273 | ||
274 | if ((sResult = ReceiveBuffer(header, HEADER_SIZE)) < 0) { | |
275 | AliDebug(1, Form("Can't receive message header! Reason: %s", | |
276 | GetErrorString(sResult))); | |
277 | return sResult; | |
278 | } | |
279 | ||
280 | if (!message.SetRawHeader(header)) { | |
281 | return AliDCSClient::fgkBadMessage; | |
282 | } | |
283 | ||
284 | if ((sResult = ReceiveBuffer(message.GetBody(), | |
285 | message.GetBodySize())) < 0) { | |
286 | ||
287 | AliDebug(1, Form("Can't receive message body! Reason: %s", | |
288 | GetErrorString(sResult))); | |
289 | return sResult; | |
290 | } | |
291 | ||
292 | message.LoadFromBuffer(); | |
293 | ||
294 | AliDebug(2, "Message received."); | |
295 | message.Print(); | |
296 | ||
297 | return HEADER_SIZE + sResult; | |
298 | } | |
299 | ||
58bc3020 | 300 | //______________________________________________________________________ |
73abe331 | 301 | Int_t AliDCSClient::GetValues(AliDCSMessage::RequestType reqType, |
2bb7b766 | 302 | const char* reqString, UInt_t startTime, UInt_t endTime, TObjArray* result) |
73abe331 | 303 | { |
bee83158 | 304 | // get array of DCS values from the DCS server |
305 | // reqString: alias name | |
306 | // startTime, endTime: start time and end time of the query | |
307 | // result: contains the array of retrieved AliDCSValue's | |
58bc3020 | 308 | |
bee83158 | 309 | Connect(); |
310 | ||
73abe331 | 311 | if (!IsConnected()) { |
312 | AliError("Not connected!"); | |
313 | return AliDCSClient::fgkBadState; | |
314 | } | |
315 | ||
bee83158 | 316 | Int_t sResult = -1; |
73abe331 | 317 | AliDCSMessage requestMessage; |
2bb7b766 | 318 | requestMessage.CreateRequestMessage(reqType, startTime, endTime, |
73abe331 | 319 | reqString); |
320 | ||
321 | if ((sResult = SendMessage(requestMessage)) < 0) { | |
322 | AliError(Form("Can't send request message! Reason: %s", | |
323 | GetErrorString(sResult))); | |
324 | Close(); | |
325 | return sResult; | |
2bb7b766 | 326 | } |
327 | ||
4e3d5771 | 328 | Int_t receivedValues = 0; |
329 | ||
330 | while (1) | |
331 | { | |
332 | Int_t tmp = 0; | |
333 | sResult = ReceiveValueSet(result, tmp); | |
334 | if (sResult <= 0) | |
335 | break; | |
336 | receivedValues += sResult; | |
337 | } | |
2bb7b766 | 338 | |
73abe331 | 339 | Close(); |
340 | ||
4e3d5771 | 341 | return receivedValues; |
73abe331 | 342 | } |
343 | ||
58bc3020 | 344 | //______________________________________________________________________ |
a038aa70 | 345 | TMap* AliDCSClient::GetValues(AliDCSMessage::RequestType reqType, |
346 | const TSeqCollection* list, UInt_t startTime, UInt_t endTime, | |
347 | Int_t startIndex, Int_t endIndex) | |
73abe331 | 348 | { |
a038aa70 | 349 | // get array of DCS values from the DCS server |
350 | // list, startTime, endTime: list of dp/alias names, start time and end time of the query | |
351 | // | |
352 | // Result: map containing the array of alias names. It will be filled with | |
353 | // the values retrieved for each alias | |
58bc3020 | 354 | |
b41b252a | 355 | TMap* result = new TMap; |
356 | result->SetOwner(1); | |
73abe331 | 357 | |
a038aa70 | 358 | if (endIndex < 0 || endIndex > list->GetEntries()) |
359 | endIndex = list->GetEntries(); | |
73abe331 | 360 | |
b41b252a | 361 | for (Int_t subsetBegin = startIndex; subsetBegin < endIndex; subsetBegin += fMultiSplit) |
a038aa70 | 362 | { |
4e3d5771 | 363 | Connect(); |
364 | ||
365 | if (!IsConnected()) | |
b41b252a | 366 | { |
4e3d5771 | 367 | AliError("Not connected!"); |
368 | delete result; | |
1790d4b7 | 369 | fResultErrorCode = fgkBadState; |
4e3d5771 | 370 | return 0; |
371 | } | |
b41b252a | 372 | |
373 | Int_t subsetEnd = subsetBegin + fMultiSplit; | |
374 | if (subsetEnd > endIndex) | |
375 | subsetEnd = endIndex; | |
376 | ||
377 | AliDCSMessage requestMessage; | |
378 | if (fMultiSplit == 1) | |
379 | { | |
4e3d5771 | 380 | // single dp request |
381 | ||
382 | TObjString* aRequest = (TObjString*) list->At(subsetBegin); | |
383 | requestMessage.CreateRequestMessage(reqType, startTime, endTime, aRequest->String()); | |
b41b252a | 384 | } |
385 | else | |
386 | { | |
4e3d5771 | 387 | // multi dp request |
388 | ||
389 | requestMessage.CreateMultiRequestMessage(reqType, | |
390 | startTime, endTime); | |
b41b252a | 391 | |
392 | for (Int_t i=subsetBegin; i<subsetEnd; i++) | |
393 | { | |
394 | TObjString* aRequest = (TObjString*) list->At(i); | |
395 | if (!requestMessage.AddRequestString(aRequest->String())) | |
1790d4b7 | 396 | { |
397 | delete result; | |
398 | fResultErrorCode = fgkBadMessage; | |
b41b252a | 399 | return 0; |
1790d4b7 | 400 | } |
4e3d5771 | 401 | } |
402 | } | |
403 | ||
404 | if ((fResultErrorCode = SendMessage(requestMessage)) < 0) | |
405 | { | |
406 | AliError(Form("Can't send request message! Reason: %s", | |
407 | GetErrorString(fResultErrorCode))); | |
408 | Close(); | |
409 | delete result; | |
410 | return 0; | |
b41b252a | 411 | } |
4e3d5771 | 412 | |
413 | while (1) | |
414 | { | |
415 | TObjArray* resultSet = new TObjArray(); | |
b41b252a | 416 | resultSet->SetOwner(1); |
73abe331 | 417 | |
4e3d5771 | 418 | Int_t ownerIndex = -1; |
419 | fResultErrorCode = ReceiveValueSet(resultSet, ownerIndex); | |
73abe331 | 420 | |
4e3d5771 | 421 | if (fResultErrorCode < 0) |
422 | { | |
423 | AliError("Can't get values"); | |
73abe331 | 424 | |
4e3d5771 | 425 | delete resultSet; |
426 | result->DeleteValues(); | |
427 | delete result; | |
428 | return 0; | |
429 | } | |
73abe331 | 430 | |
4e3d5771 | 431 | if (ownerIndex < 0) |
432 | { | |
433 | // no more values | |
434 | delete resultSet; | |
435 | break; | |
436 | } | |
73abe331 | 437 | |
4e3d5771 | 438 | TObjString* aRequest = (TObjString*) list->At(ownerIndex + subsetBegin); |
439 | //AliInfo(Form("Received %d values for entry %d, that is %s", resultSet->GetEntries(), | |
440 | // ownerIndex + subsetBegin, aRequest->String().Data())); | |
441 | ||
442 | TObjArray* target = dynamic_cast<TObjArray*> (result->GetValue(aRequest)); | |
443 | if (target) | |
444 | { | |
445 | target->AddAll(resultSet); | |
446 | //AliInfo(Form("Now we have %d entries", target->GetEntries())); | |
447 | resultSet->SetOwner(0); | |
448 | delete resultSet; | |
449 | } | |
450 | else | |
451 | result->Add(aRequest, resultSet); | |
452 | } | |
73abe331 | 453 | |
4e3d5771 | 454 | Close(); |
73abe331 | 455 | |
e1c93495 | 456 | Int_t nValues = 0; |
457 | TObjArray* example = (TObjArray*) result->GetValue(list->At(subsetBegin)); | |
458 | if (example) | |
459 | nValues = example->GetEntries(); | |
4e3d5771 | 460 | AliInfo(Form("Retrieved entries %d..%d (total %d..%d); E.g. %s has %d values collected", |
e1c93495 | 461 | subsetBegin, subsetEnd-1, startIndex, endIndex-1, list->At(subsetBegin)->GetName(), nValues)); |
73abe331 | 462 | } |
463 | ||
4e3d5771 | 464 | return result; |
465 | } | |
466 | ||
467 | //______________________________________________________________________ | |
468 | Int_t AliDCSClient::ReceiveValueSet(TObjArray* result, Int_t& ownerIndex) | |
469 | { | |
470 | // receive set of values | |
73abe331 | 471 | |
4e3d5771 | 472 | AliDCSMessage message; |
473 | Int_t sResult = ReceiveMessage(message); | |
474 | if (sResult < 0) | |
475 | { | |
476 | AliError(Form("Can't receive message! Reason: %s", GetErrorString(sResult))); | |
477 | return sResult; | |
478 | } | |
73abe331 | 479 | |
4e3d5771 | 480 | if (message.GetType() == AliDCSMessage::kResultSet) |
481 | { | |
482 | // this was the last message | |
483 | ownerIndex = message.GetOwnerIndex(); | |
484 | if (ownerIndex < 0) | |
485 | return 0; | |
73abe331 | 486 | |
4e3d5771 | 487 | sResult = message.GetValues(result); |
73abe331 | 488 | |
4e3d5771 | 489 | AliDCSMessage nextMessage; |
490 | nextMessage.CreateNextMessage(); | |
2bb7b766 | 491 | |
4e3d5771 | 492 | if ((fResultErrorCode = SendMessage(nextMessage)) < 0) |
493 | { | |
494 | AliError(Form("Can't send next message! Reason: %s", | |
495 | GetErrorString(fResultErrorCode))); | |
496 | Close(); | |
497 | return AliDCSClient::fgkCommError; | |
498 | } | |
73abe331 | 499 | |
4e3d5771 | 500 | return sResult; |
501 | } | |
502 | else if (message.GetType() == AliDCSMessage::kError) | |
503 | { | |
504 | fServerErrorCode = message.GetErrorCode(); | |
505 | fServerError = message.GetErrorString(); | |
73abe331 | 506 | |
4e3d5771 | 507 | return AliDCSClient::fgkServerError; |
508 | } | |
73abe331 | 509 | |
4e3d5771 | 510 | AliError("Bad message type received!"); |
511 | return AliDCSClient::fgkBadMessage; | |
73abe331 | 512 | } |
4e3d5771 | 513 | |
58bc3020 | 514 | //______________________________________________________________________ |
73abe331 | 515 | Int_t AliDCSClient::GetDPValues(const char* dpName, UInt_t startTime, |
2bb7b766 | 516 | UInt_t endTime, TObjArray* result) |
73abe331 | 517 | { |
518 | // | |
519 | // Reads a values from the server which correspond to this | |
520 | // DataPoint (dpName) in time interval (startTime - endTime). | |
521 | // result: Collection of AliDCSValue which contains the read values. | |
522 | // | |
523 | // Returns: | |
524 | // If >= 0 , the number of values read. | |
525 | // if < 0, the error code which has occured during the read. | |
526 | // | |
527 | ||
528 | return GetValues(AliDCSMessage::kDPName, | |
529 | dpName, startTime, endTime, result); | |
530 | } | |
531 | ||
58bc3020 | 532 | //______________________________________________________________________ |
73abe331 | 533 | Int_t AliDCSClient::GetAliasValues(const char* alias, UInt_t startTime, |
2bb7b766 | 534 | UInt_t endTime, TObjArray* result) |
73abe331 | 535 | { |
536 | // | |
537 | // Reads a values from the server which correspond to this | |
538 | // alias (alias) in time interval (startTime - endTime). | |
539 | // result: Collection of AliDCSValue which contains the read values. | |
540 | // | |
541 | // Returns: | |
542 | // If >= 0 , the number of values read. | |
543 | // if < 0, the error code which has occured during the read. | |
544 | // | |
545 | ||
546 | return GetValues(AliDCSMessage::kAlias, | |
547 | alias, startTime, endTime, result); | |
548 | } | |
549 | ||
58bc3020 | 550 | //______________________________________________________________________ |
a038aa70 | 551 | TMap* AliDCSClient::GetDPValues(const TSeqCollection* dpList, UInt_t startTime, UInt_t endTime, |
552 | Int_t startIndex, Int_t endIndex) | |
73abe331 | 553 | { |
554 | // | |
a038aa70 | 555 | // For every entry (fron startIndex to endIndex) in dpList (which must be TObjString) |
73abe331 | 556 | // reads a valueSet. The key represents particular DataPoint to be read. |
557 | // For all DataPoints time interval (startTime - endTime) is used. | |
558 | // After the read, the correspoding value for every key is a | |
d477ad88 | 559 | // TObjArray - collection of AliDCSValue, or result is an empty map in |
73abe331 | 560 | // case of error. |
561 | // | |
562 | // Returns: | |
a038aa70 | 563 | // TMap of results, 0 in case of failure |
73abe331 | 564 | // |
565 | ||
a038aa70 | 566 | return GetValues(AliDCSMessage::kDPName, dpList, startTime, endTime, startIndex, endIndex); |
73abe331 | 567 | } |
568 | ||
58bc3020 | 569 | //______________________________________________________________________ |
a038aa70 | 570 | TMap* AliDCSClient::GetAliasValues(const TSeqCollection* aliasList, UInt_t startTime, UInt_t endTime, |
571 | Int_t startIndex, Int_t endIndex) | |
73abe331 | 572 | { |
573 | // | |
a038aa70 | 574 | // For every entry (fron startIndex to endIndex) in dpList (which must be TObjString) |
73abe331 | 575 | // reads a valueSet. The key represents particular Alias to be read. |
576 | // For all aliases time interval (startTime - endTime) is used. | |
577 | // After the read, the correspoding value for every key is a | |
d477ad88 | 578 | // TObjArray - collection of AliDCSValue, or result is an empty map in |
73abe331 | 579 | // case of error. |
580 | // | |
581 | // Returns: | |
a038aa70 | 582 | // TMap of results, 0 in case of failure |
73abe331 | 583 | // |
584 | ||
a038aa70 | 585 | return GetValues(AliDCSMessage::kAlias, aliasList, startTime, endTime, startIndex, endIndex); |
73abe331 | 586 | } |
587 | ||
58bc3020 | 588 | //______________________________________________________________________ |
589 | Bool_t AliDCSClient::IsConnected() | |
590 | { | |
73abe331 | 591 | // |
592 | // Returns kTRUE if there is a valid connection to the server. | |
593 | // | |
594 | ||
595 | if (fSocket) { | |
596 | return fSocket->IsValid(); | |
597 | } | |
598 | ||
599 | return kFALSE; | |
600 | } | |
601 | ||
58bc3020 | 602 | //______________________________________________________________________ |
603 | void AliDCSClient::Close() | |
604 | { | |
73abe331 | 605 | // |
606 | // Close the connection. | |
607 | // | |
608 | ||
609 | if (fSocket) { | |
610 | fSocket->Close(); | |
bee83158 | 611 | delete fSocket; |
612 | fSocket = 0; | |
73abe331 | 613 | } |
614 | } | |
615 | ||
58bc3020 | 616 | //______________________________________________________________________ |
617 | const char* AliDCSClient::GetErrorString(Int_t code) | |
618 | { | |
73abe331 | 619 | // |
620 | // Returns a short string describing the error code. | |
621 | // code: the error code. | |
622 | // | |
623 | ||
624 | ||
625 | switch (code) { | |
626 | case AliDCSClient::fgkBadState: | |
627 | return AliDCSClient::fgkBadStateString; | |
628 | ||
629 | case AliDCSClient::fgkInvalidParameter: | |
630 | return AliDCSClient::fgkInvalidParameterString; | |
631 | ||
632 | case AliDCSClient::fgkTimeout: | |
633 | return AliDCSClient::fgkTimeoutString; | |
634 | ||
635 | case AliDCSClient::fgkBadMessage: | |
636 | return AliDCSClient::fgkBadMessageString; | |
637 | ||
638 | case AliDCSClient::fgkCommError: | |
639 | return AliDCSClient::fgkCommErrorString; | |
640 | ||
641 | case AliDCSClient::fgkServerError: | |
642 | return AliDCSClient::fgkServerErrorString; | |
643 | ||
644 | default: | |
645 | AliErrorGeneral("AliDCSClient::GetErrorString", | |
646 | "Unknown error code!"); | |
647 | return "UnknownCode"; | |
648 | } | |
649 | } | |
650 |