xmlj_xpath.c

gcc的组建

JNIEXPORT jboolean JNICALL
Java_gnu_xml_libxmlj_dom_GnomeXPathResult_getBooleanValue (JNIEnv *env,
                                                           jobject self)
{
  xmlXPathObjectPtr obj;
  
  obj = xmljGetXPathObjectID (env, self);
  return obj->boolval;
}

JNIEXPORT jobject JNICALL
Java_gnu_xml_libxmlj_dom_GnomeXPathResult_getSingleNodeValue (JNIEnv *env,
                                                              jobject self)
{
  xmlXPathObjectPtr obj;
  
  obj = xmljGetXPathObjectID (env, self);
  if (obj == NULL)
    {
      return NULL;
    }
  if (obj->nodesetval == NULL)
    {
      return NULL;
    }
  if (obj->nodesetval->nodeNr > 0)
    {
      return xmljGetNodeInstance (env, obj->nodesetval->nodeTab[0]);
    }
  else
    {
      return NULL;
    }
}

JNIEXPORT jboolean JNICALL
Java_gnu_xml_libxmlj_dom_GnomeXPathResult_getInvalidIteratorState (JNIEnv *env,
                                                                   jobject self)
{
  xmlXPathObjectPtr obj;
  
  obj = xmljGetXPathObjectID (env, self);
  return 0; /* TODO */
}

JNIEXPORT jint JNICALL
Java_gnu_xml_libxmlj_dom_GnomeXPathResult_getSnapshotLength (JNIEnv *env,
                                                             jobject self)
{
  xmlXPathObjectPtr obj;
  
  obj = xmljGetXPathObjectID (env, self);
  if (obj == NULL)
    {
      return -1;
    }
  if (obj->nodesetval == NULL)
    {
      return -1;
    }
  return obj->nodesetval->nodeNr;
}

JNIEXPORT jobject JNICALL
Java_gnu_xml_libxmlj_dom_GnomeXPathResult_iterateNext (JNIEnv *env,
                                                       jobject self)
{
  xmlXPathObjectPtr obj;
  
  obj = xmljGetXPathObjectID (env, self);
  return NULL; /* TODO */
}

JNIEXPORT jobject JNICALL
Java_gnu_xml_libxmlj_dom_GnomeXPathResult_snapshotItem (JNIEnv *env,
                                                        jobject self,
                                                        jint index)
{
  xmlXPathObjectPtr obj;
  
  obj = xmljGetXPathObjectID (env, self);
  if (obj == NULL)
    {
      return NULL;
    }
  if (obj->nodesetval == NULL)
    {
      return NULL;
    }
  if (obj->nodesetval->nodeNr > 0)
    {
      return xmljGetNodeInstance (env, obj->nodesetval->nodeTab[index]);
    }
  else
    {
      return NULL;
    }
}

/* -- GnomeXPathNodeList -- */

JNIEXPORT jobject JNICALL
Java_gnu_xml_libxmlj_dom_GnomeDocument_getElementsByTagName (JNIEnv *env,
                                                             jobject self,
                                                             jstring name)
{
  return Java_gnu_xml_libxmlj_dom_GnomeElement_getElementsByTagName (env,
                                                                     self,
                                                                     name);
}

JNIEXPORT jobject JNICALL
Java_gnu_xml_libxmlj_dom_GnomeElement_getElementsByTagName (JNIEnv *env,
                                                             jobject self,
                                                             jstring name)
{
  const xmlChar *s_name;
  const xmlChar *format;
  xmlChar expr[256];
  xmlNodePtr node;
  xmlXPathContextPtr ctx;
  xmlXPathObjectPtr eval = NULL;
  
  node = xmljGetNodeID (env, self);
  if (node == NULL)
    {
      return NULL;
    }
  s_name = xmljGetStringChars (env, name);
  if (xmlStrEqual (s_name, BAD_CAST "*"))
    {
      format = xmlCharStrdup ("descendant-or-self::*[node-type()=1]");
      if (xmlStrPrintf (expr, 256, format) == -1)
        {
          return NULL;
        }
    }
  else
    {
      format = xmlCharStrdup ("descendant-or-self::*[name()='%s']");
      if (xmlStrPrintf (expr, 256, format, s_name) == -1)
        {
          return NULL;
        }
    }
  xmlFree ((xmlChar *) s_name);
  ctx = xmljCreateXPathContextPtr (node);
  if (ctx != NULL)
    {
      eval = xmlXPathEval (expr, ctx);
      xmlXPathFreeContext (ctx);
    }
  return xmljGetXPathNodeList (env, eval);
}

JNIEXPORT jobject JNICALL
Java_gnu_xml_libxmlj_dom_GnomeDocument_getElementsByTagNameNS (JNIEnv *env,
                                                               jobject self,
                                                               jstring uri,
                                                               jstring localName)
{
  return Java_gnu_xml_libxmlj_dom_GnomeElement_getElementsByTagNameNS (env,
                                                                       self,
                                                                       uri,
                                                                       localName);
}

JNIEXPORT jobject JNICALL
Java_gnu_xml_libxmlj_dom_GnomeElement_getElementsByTagNameNS (JNIEnv *env,
                                                               jobject self,
                                                               jstring uri,
                                                               jstring localName)
{
  const xmlChar *s_uri;
  const xmlChar *s_localName;
  const xmlChar *format;
  xmlChar expr[256];
  xmlNodePtr node;
  xmlXPathContextPtr ctx;
  xmlXPathObjectPtr eval = NULL;
  
  node = xmljGetNodeID (env, self);
  if (node == NULL)
    {
      return NULL;
    }
  s_uri = xmljGetStringChars (env, uri);
  s_localName = xmljGetStringChars (env, localName);
  if (uri == NULL)
    {
      /* namespace URI is empty */
      if (xmlStrEqual (s_localName, BAD_CAST "*"))
        {
          format = xmlCharStrdup ("descendant-or-self::*[namespace-uri()='' and node-type()=1]");
          if (xmlStrPrintf (expr, 256, format) == -1)
            {
              return NULL;
            }
        }
      else
        {
          format = xmlCharStrdup ("descendant-or-self::*[namespace-uri()='' and local-name()='%s']");
          if (xmlStrPrintf (expr, 256, format, s_localName) == -1)
            {
              return NULL;
            }
        }
    }
  else if (xmlStrEqual (s_uri, BAD_CAST "*"))
    {
      /* matches all namespaces */
      if (xmlStrEqual (s_localName, BAD_CAST "*"))
        {
          format = xmlCharStrdup ("descendant-or-self::*[node-type()=1]");
          if (xmlStrPrintf (expr, 256, format) == -1)
            {
              return NULL;
            }
        }
      else
        {
          format = xmlCharStrdup ("descendant-or-self::*[local-name()='%s']");
          if (xmlStrPrintf (expr, 256, format, s_localName) == -1)
            {
              return NULL;
            }
        }
    }
  else
    {
      if (xmlStrEqual (s_localName, BAD_CAST "*"))
        {
          format = xmlCharStrdup ("descendant-or-self::*[namespace-uri()='%s' and node-type()=1]");
          if (xmlStrPrintf (expr, 256, format, s_uri) == -1)
            {
              return NULL;
            }
        }
      else
        {
          format = xmlCharStrdup ("descendant-or-self::*[namespace-uri()='%s' and local-name()='%s']");
          if (xmlStrPrintf (expr, 256, format, s_uri, s_localName) == -1)
            {
              return NULL;
            }
        }
    }
  xmlFree ((xmlChar *) s_uri);
  xmlFree ((xmlChar *) s_localName);
  ctx = xmljCreateXPathContextPtr (node);
  if (ctx != NULL)
    {
      eval = xmlXPathEval (expr, ctx);
      xmlXPathFreeContext (ctx);
    }
  return xmljGetXPathNodeList (env, eval);
}

JNIEXPORT void JNICALL
Java_gnu_xml_libxmlj_dom_GnomeXPathNodeList_free (JNIEnv *env,
                                                  jobject self
						  __attribute__((__unused__)),
                                                  jobject obj)
{
  xmlXPathFreeObject ((xmlXPathObjectPtr) xmljAsPointer (env, obj));
}

JNIEXPORT jint JNICALL
Java_gnu_xml_libxmlj_dom_GnomeXPathNodeList_getLength (JNIEnv *env,
                                                       jobject self)
{
  xmlXPathObjectPtr obj;
  
  obj = xmljGetXPathObjectID (env, self);
  if (obj == NULL)
    {
      return 0;
    }
  if (obj->nodesetval == NULL)
    {
      return 0;
    }
  return obj->nodesetval->nodeNr;
}

JNIEXPORT jobject JNICALL
Java_gnu_xml_libxmlj_dom_GnomeXPathNodeList_item (JNIEnv *env,
                                                  jobject self,
                                                  jint index)
{
  xmlXPathObjectPtr obj;
  
  obj = xmljGetXPathObjectID (env, self);
  if (obj == NULL)
    {
      return NULL;
    }
  if (obj->nodesetval == NULL)
    {
      return NULL;
    }
  if (obj->nodesetval->nodeNr > 0)
    {
      return xmljGetNodeInstance (env, obj->nodesetval->nodeTab[index]);
    }
  else
    {
      return NULL;
    }
}