Zebra uses string attributes for indexing internally. Using set+numeric

[idzebra-moved-to-github.git] / util / attrfind.c

diff --git a/util/attrfind.c b/util/attrfind.c
new file mode 100644 (file)
index 0000000..80f9912
--- /dev/null
+++ b/util/attrfind.c
@@ -0,0 +1,122 @@
+/* $Id: attrfind.c,v 1.1 2006-05-19 13:49:38 adam Exp $
+   Copyright (C) 2005-2006
+   Index Data ApS
+
+   This file is part of the Zebra server.
+
+   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 Zebra; see the file LICENSE.zebra.  If not, write to the
+   Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.
+*/
+
+#include <assert.h>
+
+#include <attrfind.h>
+
+void attr_init_APT(AttrType *src, Z_AttributesPlusTerm *zapt, int type)
+{
+    src->attributeList = zapt->attributes->attributes;
+    src->num_attributes = zapt->attributes->num_attributes;
+    src->type = type;
+    src->major = 0;
+    src->minor = 0;
+}
+
+void attr_init_AttrList(AttrType *src, Z_AttributeList *list, int type)
+{
+    src->attributeList = list->attributes;
+    src->num_attributes = list->num_attributes;
+    src->type = type;
+    src->major = 0;
+    src->minor = 0;
+}
+
+int attr_find_ex(AttrType *src, oid_value *attributeSetP, 
+                const char **string_value)
+{
+    int num_attributes;
+
+    num_attributes = src->num_attributes;
+    while (src->major < num_attributes)
+    {
+        Z_AttributeElement *element;
+
+        element = src->attributeList[src->major];
+        if (src->type == *element->attributeType)
+        {
+            switch (element->which) 
+            {
+            case Z_AttributeValue_numeric:
+                ++(src->major);
+                if (element->attributeSet && attributeSetP)
+                {
+                    oident *attrset;
+
+                    attrset = oid_getentbyoid(element->attributeSet);
+                    *attributeSetP = attrset->value;
+                }
+                return *element->value.numeric;
+                break;
+            case Z_AttributeValue_complex:
+                if (src->minor >= element->value.complex->num_list)
+                    break;
+                if (element->attributeSet && attributeSetP)
+                {
+                    oident *attrset;
+                    
+                    attrset = oid_getentbyoid(element->attributeSet);
+                    *attributeSetP = attrset->value;
+                }
+                if (element->value.complex->list[src->minor]->which ==  
+                    Z_StringOrNumeric_numeric)
+                {
+                    ++(src->minor);
+                    return
+                        *element->value.complex->list[src->minor-1]->u.numeric;
+                }
+                else if (element->value.complex->list[src->minor]->which ==  
+                         Z_StringOrNumeric_string)
+                {
+                    if (!string_value)
+                        break;
+                    ++(src->minor);
+                    *string_value = 
+                        element->value.complex->list[src->minor-1]->u.string;
+                    return -2;
+                }
+                else
+                    break;
+            default:
+                assert(0);
+            }
+        }
+        ++(src->major);
+    }
+    return -1;
+}
+
+int attr_find(AttrType *src, oid_value *attributeSetP)
+{
+    return attr_find_ex(src, attributeSetP, 0);
+}
+
+
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+