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comparison PalanthirServer/Internals/FindScp.cpp @ 45:33d67e1ab173

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 05 Sep 2012 13:24:59 +0200
parents PalantirServer/Internals/FindScp.cpp@3959d33612cc
children a15e90e5d6fc
comparison
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43:9be852ad33d2 45:33d67e1ab173
1 /**
2 * Palantir - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
4 * Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 **/
19
20
21 #include "FindScp.h"
22
23 #include "../FromDcmtkBridge.h"
24 #include "../ToDcmtkBridge.h"
25 #include "../../Core/PalantirException.h"
26
27 #include <dcmtk/dcmdata/dcfilefo.h>
28 #include <dcmtk/dcmdata/dcmetinf.h>
29 #include <dcmtk/dcmdata/dcostrmb.h>
30 #include <dcmtk/dcmdata/dcdeftag.h>
31 #include <dcmtk/dcmnet/diutil.h>
32
33
34 namespace Palantir
35 {
36 namespace Internals
37 {
38 extern OFLogger Logger;
39 }
40
41
42 namespace
43 {
44 struct FindScpData
45 {
46 IFindRequestHandler* handler_;
47 DicomMap input_;
48 DicomFindAnswers answers_;
49 DcmDataset* lastRequest_;
50 };
51
52
53 void FindScpCallback(
54 /* in */
55 void *callbackData,
56 OFBool cancelled,
57 T_DIMSE_C_FindRQ *request,
58 DcmDataset *requestIdentifiers,
59 int responseCount,
60 /* out */
61 T_DIMSE_C_FindRSP *response,
62 DcmDataset **responseIdentifiers,
63 DcmDataset **statusDetail)
64 {
65 bzero(response, sizeof(T_DIMSE_C_FindRSP));
66 *statusDetail = NULL;
67
68 FindScpData& data = *(FindScpData*) callbackData;
69 if (data.lastRequest_ == NULL)
70 {
71 FromDcmtkBridge::Convert(data.input_, *requestIdentifiers);
72
73 try
74 {
75 data.handler_->Handle(data.input_, data.answers_);
76 }
77 catch (PalantirException& e)
78 {
79 // Internal error!
80 OFLOG_ERROR(Internals::Logger, "IFindRequestHandler Failed: " << e.What());
81 response->DimseStatus = STATUS_FIND_Failed_UnableToProcess;
82 *responseIdentifiers = NULL;
83 return;
84 }
85
86 data.lastRequest_ = requestIdentifiers;
87 }
88 else if (data.lastRequest_ != requestIdentifiers)
89 {
90 // Internal error!
91 response->DimseStatus = STATUS_FIND_Failed_UnableToProcess;
92 *responseIdentifiers = NULL;
93 return;
94 }
95
96 if (responseCount <= static_cast<int>(data.answers_.GetSize()))
97 {
98 response->DimseStatus = STATUS_Pending;
99 *responseIdentifiers = ToDcmtkBridge::Convert(data.answers_.GetAnswer(responseCount - 1));
100 }
101 else
102 {
103 response->DimseStatus = STATUS_Success;
104 *responseIdentifiers = NULL;
105 }
106 }
107 }
108
109
110 OFCondition Internals::findScp(T_ASC_Association * assoc,
111 T_DIMSE_Message * msg,
112 T_ASC_PresentationContextID presID,
113 IFindRequestHandler& handler)
114 {
115 FindScpData data;
116 data.lastRequest_ = NULL;
117 data.handler_ = &handler;
118
119 OFCondition cond = DIMSE_findProvider(assoc, presID, &msg->msg.CFindRQ,
120 FindScpCallback, &data,
121 /*opt_blockMode*/ DIMSE_BLOCKING,
122 /*opt_dimse_timeout*/ 0);
123
124 // if some error occured, dump corresponding information and remove the outfile if necessary
125 if (cond.bad())
126 {
127 OFString temp_str;
128 OFLOG_ERROR(Internals::Logger, "Find SCP Failed: " << DimseCondition::dump(temp_str, cond));
129 }
130
131 return cond;
132 }
133 }