Mysql indexing pluging

[idzebra-moved-to-github.git] / index / update_driver.c

diff --git a/index/update_driver.c b/index/update_driver.c
new file mode 100644 (file)
index 0000000..072112f
--- /dev/null
+++ b/index/update_driver.c
@@ -0,0 +1,166 @@
+/* This file is part of the Zebra server.
+   Copyright (C) 1994-2009 Index Data
+
+Zebra is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+*/
+
+#include <stdio.h>
+#include <assert.h>
+#include <sys/types.h>
+#ifdef WIN32
+#include <io.h>
+#define S_ISREG(x) (x & _S_IFREG)
+#define S_ISDIR(x) (x & _S_IFDIR)
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <direntz.h>
+#include <fcntl.h>
+#include <time.h>
+
+#include "index.h"
+
+/* plugin includes */
+#include <sys/stat.h>
+#include "indexplugin.h"
+#include <stdlib.h>
+#include <dlfcn.h>
+
+
+
+
+
+zebra_index_plugin_object *pluginObj = NULL;
+
+static zebra_index_plugin_object *newZebraPlugin(void)
+{
+    zebra_index_plugin_object *newPlugin = malloc(sizeof(zebra_index_plugin_object));
+    return newPlugin;
+}
+
+static void destroyZebraPlugin(zebra_index_plugin_object *zebraIdxPlugin)
+{
+    free(zebraIdxPlugin);
+}
+
+void addDriverFunction(indexList function)
+{
+    /* Assign the function to the object */
+    pluginObj->idxList = function;
+}
+
+
+void zebraIndexBuffer(ZebraHandle zh, char *data, int dataLength, enum zebra_recctrl_action_t action, char *name)
+{
+    zebra_buffer_extract_record(zh, data, dataLength, action, zh->m_record_type, NULL, NULL, name);
+}
+
+
+/* I'm not even sure what this is for */
+void repositoryShowDriver(ZebraHandle zh, const char *path)
+{
+    char src[1024];
+    int src_len;
+    struct dirs_entry *dst;
+    Dict dict;
+    struct dirs_info *di;
+
+    if (!(dict = dict_open_res(zh->reg->bfs, FMATCH_DICT, 50, 0, 0, zh->res)))
+    {
+        yaz_log(YLOG_FATAL, "dict_open fail of %s", FMATCH_DICT);
+       return;
+    }
+    
+    strncpy(src, path, sizeof(src)-1);
+    src[sizeof(src)-1]='\0';
+    src_len = strlen(src);
+    
+    if (src_len && src[src_len-1] != '/')
+    {
+        src[src_len] = '/';
+        src[++src_len] = '\0';
+    }
+    
+    di = dirs_open(dict, src, zh->m_flag_rw);
+    
+    while ((dst = dirs_read(di)))
+        yaz_log(YLOG_LOG, "%s", dst->path);
+    dirs_free(&di);
+    dict_close(dict);
+}
+
+
+ZEBRA_RES zebra_update_from_driver(ZebraHandle zh, const char *path, 
+                                   enum zebra_recctrl_action_t action, char *useIndexDriver)
+{
+    /* delcair something to hold out remote call */
+    void (*idxPluginRegister)(void);
+    char *dlError;
+    void *libHandle;
+    int pluginReturn;
+
+    char driverName[100];
+    sprintf(driverName, "mod-%s.so", useIndexDriver);
+
+    yaz_log(YLOG_LOG, "Loading driver %s", useIndexDriver);
+
+    libHandle = dlopen(driverName, RTLD_LAZY);
+    if (!libHandle)
+    {
+        yaz_log(YLOG_FATAL, "Unable to load index plugin %s", dlerror());
+        return ZEBRA_FAIL;
+    }
+    /* clear the error buffer */
+    dlerror();
+
+    idxPluginRegister = dlsym(libHandle, "indexPluginRegister");
+
+    if ((dlError = dlerror()) != NULL)
+    {
+        yaz_log(YLOG_FATAL, "Index plugin error: %s", dlError);
+
+        /* Although the documentation says this dlclose isn't needed 
+           it seems better to put it in, incase there were memory
+           allocations */
+        dlclose(libHandle);
+        return ZEBRA_FAIL;
+    }
+
+    pluginObj = newZebraPlugin();
+    
+    /* invoke the plugin starter */
+    idxPluginRegister();
+
+    pluginReturn = pluginObj->idxList(zh, path, action);
+    destroyZebraPlugin(pluginObj);
+    
+    /* close the plugin handle */
+    dlclose(libHandle);
+
+    /* repositoryExtract(zh, path, action);*/
+    return pluginReturn;
+}
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+