[8950] | 1 | /*
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| 2 | * MGPassesWrapperImpl.c
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| 3 | * Copyright (C) 2002 New Zealand Digital Library, http://www.nzdl.org
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or modify
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| 6 | * it under the terms of the GNU General Public License as published by
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| 7 | * the Free Software Foundation; either version 2 of the License, or
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| 8 | * (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 18 | */
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| 19 |
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| 20 |
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| 21 | #include <jni.h>
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| 22 | #include <assert.h>
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| 23 | #include "sysfuncs.h"
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| 24 | #include "org_greenstone_mgpp_MGPPPassesWrapper.h"
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| 25 |
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| 26 | #include "mgpp_passes_4jni.h"
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| 27 | #include "mg_files.h"
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| 28 |
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| 29 | /* if we need to use java objects, we should initialise their field ids here*/
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| 30 | JNIEXPORT void JNICALL
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| 31 | Java_org_greenstone_mgpp_MGPPPassesWrapper_initIDs(JNIEnv *j_env, jclass j_cls)
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| 32 | {
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| 33 | return;
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| 34 | }
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| 35 |
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| 36 | JNIEXPORT jboolean JNICALL
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| 37 | Java_org_greenstone_mgpp_MGPPPassesWrapper_initCSide(JNIEnv *j_env, jobject j_obj)
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| 38 | {
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| 39 | clear_variables();
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| 40 | return true;
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| 41 | }
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| 42 |
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| 43 | /* add a pass type T1, T2, I1, I2, S */
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| 44 | JNIEXPORT void JNICALL
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| 45 | Java_org_greenstone_mgpp_MGPPPassesWrapper_addPass(JNIEnv *j_env,
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| 46 | jobject j_obj,
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| 47 | jchar j_pass_type,
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| 48 | jchar j_pass_num)
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| 49 | {
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| 50 | /* get the level as a c char */
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| 51 | const char pass_type = j_pass_type;
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| 52 | const char pass_num = j_pass_num;
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| 53 | add_pass(pass_type, pass_num);
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| 54 |
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| 55 | }
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| 56 |
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| 57 | /* Set the filename */
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| 58 | JNIEXPORT void JNICALL
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| 59 | Java_org_greenstone_mgpp_MGPPPassesWrapper_setFileName(JNIEnv *j_env,
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| 60 | jobject j_obj,
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| 61 | jstring j_filename)
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| 62 | {
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| 63 | /* Get the filename as a C string */
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| 64 | const char* filename = j_env->GetStringUTFChars(j_filename, NULL);
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| 65 |
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| 66 | assert(filename != NULL);
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| 67 | set_filename(filename);
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| 68 |
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| 69 | /* Release the string */
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| 70 | j_env->ReleaseStringUTFChars(j_filename, filename);
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| 71 |
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| 72 | }
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| 73 |
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| 74 | /* Set the base path */
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| 75 | JNIEXPORT void JNICALL
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| 76 | Java_org_greenstone_mgpp_MGPPPassesWrapper_setBasePath(JNIEnv *j_env,
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| 77 | jobject j_obj,
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| 78 | jstring j_basepath)
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| 79 | {
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| 80 | /* Get the base_path as a C string */
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| 81 | const char* basepath = j_env->GetStringUTFChars(j_basepath, NULL);
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| 82 | assert(basepath != NULL);
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| 83 |
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| 84 | set_basepath(basepath);
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| 85 |
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| 86 | /* Release the string */
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| 87 | j_env->ReleaseStringUTFChars(j_basepath, basepath);
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| 88 |
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| 89 | }
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| 90 |
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| 91 | /* set the Document tag */
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| 92 | JNIEXPORT void JNICALL
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| 93 | Java_org_greenstone_mgpp_MGPPPassesWrapper_setDocumentTag(JNIEnv *j_env,
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| 94 | jobject j_obj,
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| 95 | jstring j_tag)
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| 96 | {
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| 97 | const char* tag = j_env->GetStringUTFChars(j_tag, NULL);
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| 98 |
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| 99 | set_document_tag(tag);
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| 100 | /* Release the string */
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| 101 | j_env->ReleaseStringUTFChars(j_tag, tag);
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| 102 |
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| 103 |
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| 104 | }
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| 105 |
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| 106 | /* add a level tag */
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| 107 | JNIEXPORT void JNICALL
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| 108 | Java_org_greenstone_mgpp_MGPPPassesWrapper_addLevelTag(JNIEnv *j_env,
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| 109 | jobject j_obj,
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| 110 | jstring j_tag)
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| 111 | {
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| 112 | const char* tag = j_env->GetStringUTFChars(j_tag, NULL);
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| 113 | add_level_tag(tag);
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| 114 |
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| 115 | /* Release the string */
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| 116 | j_env->ReleaseStringUTFChars(j_tag, tag);
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| 117 |
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| 118 | }
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| 119 |
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| 120 | /* set the index level (default word level) */
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| 121 | JNIEXPORT void JNICALL
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| 122 | Java_org_greenstone_mgpp_MGPPPassesWrapper_setIndexLevel(JNIEnv *j_env,
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| 123 | jobject j_obj,
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| 124 | jstring j_tag)
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| 125 | {
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| 126 | const char* tag = j_env->GetStringUTFChars(j_tag, NULL);
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| 127 | set_index_level(tag);
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| 128 |
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| 129 | /* Release the string */
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| 130 | j_env->ReleaseStringUTFChars(j_tag, tag);
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| 131 |
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| 132 |
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| 133 | }
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| 134 |
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| 135 |
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| 136 | /** Maximum amount of memory to use for the index pass-2 file
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| 137 | inversion in megabytes.
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| 138 | */
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| 139 | JNIEXPORT void JNICALL
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| 140 | Java_org_greenstone_mgpp_MGPPPassesWrapper_setInversionMemLimit(JNIEnv *j_env,
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| 141 | jobject j_obj,
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| 142 | jint j_limit) {
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| 143 | int limit = j_limit;
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| 144 | set_inversion_limit(limit);
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| 145 | }
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| 146 |
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| 147 |
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| 148 | /* initialise the pass through the documents. must be called after all
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| 149 | the set methods
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| 150 | */
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| 151 | JNIEXPORT jboolean JNICALL
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| 152 | Java_org_greenstone_mgpp_MGPPPassesWrapper_init(JNIEnv *j_env,
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| 153 | jobject j_obj) {
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| 154 |
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| 155 | init_driver();
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| 156 | return true;
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| 157 | }
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| 158 |
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| 159 |
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| 160 | /* process one or more documents */
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| 161 | JNIEXPORT jboolean JNICALL
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| 162 | Java_org_greenstone_mgpp_MGPPPassesWrapper_processMGPPDocument(JNIEnv *j_env,
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| 163 | jobject j_obj,
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| 164 | jbyteArray j_doc_text) {
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| 165 | /* Get the text as a C string */
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| 166 | int length = j_env->GetArrayLength(j_doc_text);
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| 167 | u_char * text_buffer = (u_char *)j_env->GetByteArrayElements(j_doc_text, NULL);
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| 168 | process_document(text_buffer, length);
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| 169 | /* Release the string */
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| 170 | // why doesn't this work in c++ when it works in C?????
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| 171 | //j_env->ReleaseByteArrayElements(j_doc_text, text_buffer, 0);
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| 172 | return true;
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| 173 | }
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| 174 |
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| 175 | /* finalise the pass through the documents */
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| 176 | JNIEXPORT jboolean JNICALL
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| 177 | Java_org_greenstone_mgpp_MGPPPassesWrapper_finish(JNIEnv *j_env,
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| 178 | jobject j_obj) {
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| 179 |
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| 180 | finalise_driver();
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| 181 | return true;
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| 182 | }
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| 183 |
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| 184 | /** get the exit value once finished */
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| 185 | JNIEXPORT jint JNICALL
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| 186 | Java_org_greenstone_mgpp_MGPPPassesWrapper_exitValue(JNIEnv *j_env,
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| 187 | jobject j_obj) {
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| 188 |
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| 189 | return get_exit_value();
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| 190 | }
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