source: indexers/trunk/mgpp/jni/MGPPRetrieveWrapperImpl.cpp@ 16705

Last change on this file since 16705 was 16583, checked in by davidb, 16 years ago

Undoing change commited in r16582

File size: 2.4 KB
Line 
1/*
2 * MGPPRetrieveWrapperImpl.c
3 * Copyright (C) 2007 New Zealand Digital Library, http://www.nzdl.org
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19
20#ifdef __WIN32__
21#include <win32cfg.h>
22#endif
23
24#include <jni.h>
25#include "org_greenstone_mgpp_MGPPRetrieveWrapper.h"
26#include "TextGet.h"
27
28
29//****************************************************
30// retrieve a document
31//****************************************************
32
33/* returns a document from mgpp as a string
34Note: TextData isn't cached - just reloaded each time
35*/
36JNIEXPORT jstring JNICALL
37Java_org_greenstone_mgpp_MGPPRetrieveWrapper_getDocument (JNIEnv *j_env,
38 jobject j_obj, jstring j_text_name, jstring j_level, jlong j_docnum) {
39
40#ifdef __WIN32__
41 const char* base_dir = "";
42#else
43 const char* base_dir = "/";
44#endif
45
46 const char * text_name = j_env->GetStringUTFChars(j_text_name, NULL);
47 if (text_name==NULL) {
48 return NULL;
49 }
50
51 const char * level = j_env->GetStringUTFChars( j_level, NULL);
52 if (level==NULL) {
53 j_env->ReleaseStringUTFChars(j_text_name, text_name);
54 return NULL;
55 }
56
57 // does this work alright? j_docnum is a long (64 bit)
58 unsigned long docnum = j_docnum;
59 TextData td;
60
61 // cast to char* otherwise complains about const
62 td.LoadData((char *)base_dir, (char *)text_name);
63
64 UCArray mg_level;
65 SetCStr(mg_level, level);
66 UCArray docText;
67 docText.clear();
68 // get the actual text
69 if (!GetDocText(td, mg_level, docnum, docText)) {
70 cerr <<"MGPP JNI: couldn't retrieve doc text"<<endl;
71 }
72
73 td.UnloadData();
74
75 char * doc = GetCStr(docText);
76 jstring result = j_env->NewStringUTF(doc);
77 // release any gets
78 j_env->ReleaseStringUTFChars(j_text_name, text_name);
79 j_env->ReleaseStringUTFChars(j_level, level);
80
81 // free any C++ stuff
82 delete doc;
83
84 return result;
85
86}
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