source: trunk/zoo-project/zoo-services/utils/status/service.c @ 652

Last change on this file since 652 was 652, checked in by djay, 7 years ago

Better concurrency gesture for asynchronous requests, add db backend support for status informations.

  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-csrc
File size: 5.2 KB
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1/**
2 * Author : Gérald FENOY
3 *
4 * Copyright 2008-2009 GeoLabs SARL. All rights reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25#include "service.h"
26#include "service_internal.h"
27
28extern "C" {
29#include <libxml/tree.h>
30#include <libxml/parser.h>
31#include <libxml/xpath.h>
32#include <libxml/xpathInternals.h>
33
34#include <libxslt/xslt.h>
35#include <libxslt/xsltInternals.h>
36#include <libxslt/transform.h>
37#include <libxslt/xsltutils.h>
38
39#include <dirent.h>
40
41  /**
42   * GetStatus ZOO Service :
43   * This service is used in the ZOO-Project to get information about Services
44   * running as background tasks. The service will first get the XML document
45   * cached by the ZOO-Kernel before calling effectively the Service, then
46   * will access the shared memory space created by the Kernel to extract the
47   * current status of the running Service. Using a simple XSL file it will
48   * finally produce the final ExecuteResponse including the updated
49   * percentCompleted attribute of the ProcessStarted node of the cached
50   * document if any (so if the Service is currently running) else it will
51   * return the final ExecuteResponse stored on the Server file system.
52   */
53#ifdef WIN32
54  __declspec(dllexport)
55#endif
56  int GetStatus(maps*& conf,maps*& inputs,maps*& outputs){
57    const char *params[4 + 1];
58    int xmlLoadExtDtdDefaultValue;
59    map* tmpMap=NULL,*tmpMmap=NULL, *tmpTmap=NULL;
60
61    tmpMap=getMapFromMaps(inputs,"sid","value");
62    tmpTmap=getMapFromMaps(conf,"main","tmpPath");
63    tmpMmap=getMapFromMaps(conf,"main","dataPath");
64    if(tmpMmap==NULL)
65      tmpMmap=tmpTmap;
66    xmlInitParser();
67    int hasFile=-1;
68    char xslFileName[1024];
69    char* mem=_getStatusFile(conf,tmpMap->value);
70    if(mem==NULL){
71      char tmp[1024];
72      snprintf(tmp,1024,_ss("GetStatus was unable to find any cache file for Service ID %s."),tmpMap->value);
73      setMapInMaps(conf,"lenv","message",tmp);
74      return SERVICE_FAILED;
75    }
76    sprintf(xslFileName,"%s/updateStatus.xsl",tmpMmap->value);
77    xmlSubstituteEntitiesDefault(1);
78    xmlLoadExtDtdDefaultValue = 0;
79    xsltStylesheetPtr cur = NULL;
80    xmlDocPtr doc, res;
81    cur = xsltParseStylesheetFile(BAD_CAST xslFileName);
82    doc = xmlParseMemory(mem,strlen(mem));
83    //doc = xmlParseFile(fileName);
84    if(cur!=NULL && doc!=NULL){
85      /**
86       * Parse Status to extract Status / Message
87       */
88      char *tmpStr=_getStatus(conf,tmpMap->value);
89#ifdef DEBUG
90      fprintf(stderr,"DEBUG: %s \n",tmpStr);
91#endif
92      if(tmpStr!=NULL && strncmp(tmpStr,"-1",2)!=0){
93        char *tmpStr1=strdup(tmpStr);
94        char *tmpStr0=strdup(strstr(tmpStr,"|")+1);
95        free(tmpStr);
96        tmpStr1[strlen(tmpStr1)-strlen(tmpStr0)-1]='\0';
97        char *tmpStrFinal=(char*)malloc((strlen(tmpStr0)+11)*sizeof(char));
98        sprintf(tmpStrFinal,"string(\"%s\")",tmpStr0);
99        params[0]="value";
100        params[1]=tmpStr1;
101        params[2]="message";
102        params[3]=tmpStrFinal;
103        params[4]=NULL;
104        res = xsltApplyStylesheet(cur, doc, params);
105        xmlChar *xmlbuff;
106        int buffersize;
107        xmlDocDumpFormatMemory(res, &xmlbuff, &buffersize, 1);
108        setMapInMaps(outputs,"Result","value",(char*)xmlbuff);
109        xmlFree(xmlbuff);
110        free(tmpStr1);
111        free(tmpStr0);
112        free(tmpStrFinal);
113      }else{
114        xmlChar *xmlbuff;
115        int buffersize;
116        xmlDocDumpFormatMemory(doc, &xmlbuff, &buffersize, 1);
117        setMapInMaps(outputs,"Result","value",(char*)xmlbuff);
118        xmlFree(xmlbuff);
119      }
120    }
121    else{
122      char tmp[1024];
123      sprintf(tmp,_ss("ZOO GetStatus Service was unable to parse the cache xml file available for the Service ID %s."),tmpMap->value);
124      setMapInMaps(conf,"lenv","message",tmp);
125      return SERVICE_FAILED;
126    }
127    return SERVICE_SUCCEEDED;
128  }
129
130
131  /**
132   * longProcess ZOO Service :
133   * Simple Service which just loop over 100 times then return a welcome message
134   * string, at each step the service will sleep for one second.
135   */
136#ifdef WIN32
137  __declspec(dllexport)
138#endif
139  int longProcess(maps*& conf,maps*& inputs,maps*& outputs){
140    int i=0;
141    while(i<100){
142      char message[10];
143      sprintf(message,"Step %d",i);
144      updateStatus(conf,i,message);
145#ifndef WIN32
146      sleep(1);
147#else
148      Sleep(1000);
149#endif
150      i+=5;
151    }
152    setOutputValue(outputs,"Result",(char*)"\"Long process run successfully\"",-1);
153    return SERVICE_SUCCEEDED;
154  }
155
156}
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