xmlj_io.c

gcc的组建

                }
              if (xmlCtxtUseOptions (ctx, options))
                {
                  xmljThrowException (env,
                                      "java/lang/RuntimeException",
                                      "Unable to set xmlParserCtxtPtr options");
                }
              if (base != NULL)
                {
                  ctx->input->directory =
                    (*env)->GetStringUTFChars (env, base, 0);
                }
              return ctx;
            }
          xmljFreeInputStreamContext (inputContext);
        }
    }
  return NULL;
}

void
xmljFreeParserContext (xmlParserCtxtPtr ctx)
{
  InputStreamContext *inputStreamContext = NULL;

  if (ctx->input != NULL && ctx->input->buf != NULL)
    {
      inputStreamContext
        = (InputStreamContext *) ctx->input->buf->context;
      
    }
  xmlFreeParserCtxt (ctx);
  if (inputStreamContext != NULL)
    {
      xmljFreeInputStreamContext (inputStreamContext);
    }
}

xmlDocPtr
xmljParseDocument (JNIEnv * env,
                   jobject self,
                   jobject in,
                   jbyteArray detectBuffer,
                   jstring publicId,
                   jstring systemId,
                   jstring base,
                   jboolean validate,
                   jboolean coalesce,
                   jboolean expandEntities,
                   jboolean contentHandler,
                   jboolean dtdHandler,
                   jboolean entityResolver,
                   jboolean errorHandler,
                   jboolean declarationHandler,
                   jboolean lexicalHandler,
                   int mode)
{
  xmlParserCtxtPtr ctx;
  SAXParseContext *saxCtx;
  xmlSAXHandlerPtr sax;

  ctx = xmljNewParserContext (env, in, detectBuffer, publicId, systemId, base,
                              validate, coalesce, expandEntities,
                              entityResolver);
  if (ctx != NULL)
    {
      saxCtx = xmljNewSAXParseContext (env, self, ctx, publicId, systemId);
      if (saxCtx != NULL)
        {
          sax = xmljNewSAXHandler (contentHandler,
                                   dtdHandler,
                                   entityResolver,
                                   errorHandler,
                                   declarationHandler,
                                   lexicalHandler);
          if (sax != NULL)
            {
              return xmljParseDocument2 (env,
                                         ctx,
                                         saxCtx,
                                         sax,
                                         mode);
            }
          xmljFreeSAXParseContext (saxCtx);
        }
      xmljFreeParserContext (ctx);
    }
  if (!(*env)->ExceptionOccurred (env))
    {
      xmljThrowException (env, "java/io/IOException",
                          "Unable to create parser context");
    }
  return NULL;
}

xmlDocPtr
xmljParseDocument2 (JNIEnv * env,
                    xmlParserCtxtPtr ctx,
                    SAXParseContext *saxCtx,
                    xmlSAXHandlerPtr sax,
                    int mode)
{
  xmlSAXHandlerPtr orig;
  xmlDocPtr doc;
  int ret;
  
  ctx->_private = saxCtx;
  ctx->userData = ctx;
  orig = ctx->sax;
  ctx->sax = sax;
  
  xmljSetThreadContext (saxCtx);

  ret = xmlParseDocument (ctx);
  doc = ctx->myDoc;
  if (ret || !doc)
    {
      const char *msg = ctx->lastError.message;
      switch (mode)
        {
        case 0:
          xmljSAXFatalError (ctx, msg);
          break;
        case 1:
          xmljThrowDOMException (env, ret, msg);
          break;
        case 2:
          xmljThrowException (env,
                              "javax/xml/transform/TransformerException",
                              msg);
        }
    }
  
  xmljClearThreadContext ();
              
  ctx->sax = orig;
  free(sax);
  xmljFreeSAXParseContext (saxCtx);
  xmljFreeParserContext (ctx);
  xmljClearStringCache ();
  return doc;
}

xmlParserInputPtr
xmljNewParserInput (JNIEnv * env,
                    jobject inputStream,
                    jbyteArray detectBuffer,
                    xmlParserCtxtPtr parserContext)
{
  xmlParserInputPtr ret;
  xmlParserInputBufferPtr input;
  xmlCharEncoding encoding;

  encoding = xmljDetectCharEncoding (env, detectBuffer);
  if (encoding != XML_CHAR_ENCODING_ERROR)
    {
      input = xmljNewParserInputBuffer (env, inputStream, encoding);
      if (input != NULL)
        {
          ret = xmlNewIOInputStream (parserContext, input, encoding);
          return ret;
        }
      xmlFreeParserInputBuffer (input);
    }
  return NULL;
}

xmlParserInputBufferPtr
xmljNewParserInputBuffer (JNIEnv * env,
                          jobject inputStream, xmlCharEncoding encoding)
{
  xmlParserInputBufferPtr ret;
  InputStreamContext *inputContext;

  inputContext = xmljNewInputStreamContext (env, inputStream);
  if (NULL != inputContext)
    {
      ret = xmlParserInputBufferCreateIO (&xmljInputReadCallback,
                                          &xmljInputCloseCallback,
                                          inputContext, encoding);
      if (ret != NULL)
        return ret;
      xmljFreeInputStreamContext (inputContext);
    }
  return NULL;
}

void
xmljSaveFileToJavaOutputStream (JNIEnv * env, jobject outputStream,
                                xmlDocPtr tree,
                                const char *outputEncodingName)
{
  OutputStreamContext *outputContext =
    xmljNewOutputStreamContext (env, outputStream);

  xmlCharEncoding outputEncoding = xmlParseCharEncoding (outputEncodingName);

  xmlOutputBufferPtr outputBuffer =
    xmlOutputBufferCreateIO (xmljOutputWriteCallback,
                             xmljOutputCloseCallback,
                             outputContext,
                             xmlGetCharEncodingHandler (outputEncoding));

  /* Write result to output stream */

  xmlSaveFileTo (outputBuffer, tree, outputEncodingName);

  xmljFreeOutputStreamContext (outputContext);
}

/*
jobject
xmljResolveURI (SaxErrorContext * saxErrorContext,
                const char *URL, const char *ID)
{
  JNIEnv *env = saxErrorContext->env;

  jstring hrefString = (*env)->NewStringUTF (env, URL);
  jstring baseString = saxErrorContext->systemId;

  jobject sourceWrapper = (*env)->CallObjectMethod (env,
                                                    saxErrorContext->
                                                    saxErrorAdapter,
                                                    saxErrorContext->
                                                    resolveURIMethodID,
                                                    hrefString,
                                                    baseString);
  (*env)->DeleteLocalRef (env, hrefString);

  if (NULL == sourceWrapper)
    {
      return NULL;
    }
  else
    {
      jobject sourceInputStream = (*env)->CallObjectMethod (env,
                                                            sourceWrapper,
                                                            saxErrorContext->
                                                            getInputStreamMethodID);

      (*env)->DeleteLocalRef (env, sourceWrapper);

      if ((*env)->ExceptionOccurred (env))
        {
          -* Report to ErrorAdapter here? *-
          return NULL;
        }

      return sourceInputStream;
    }
}*/

xmlDocPtr
xmljResolveURIAndOpen (SAXParseContext *saxContext,
                       const char *URL,
                       const char *ID)
{
  jobject libxmlDocument;
  xmlDocPtr doc;
  JNIEnv *env = saxContext->env;

  jstring hrefString = (*env)->NewStringUTF (env, URL);
  jstring baseString = saxContext->systemId;

  if (saxContext->resolveURIAndOpen == NULL)
    {
      jclass cls = (*env)->GetObjectClass (env, saxContext->obj);
      saxContext->resolveURIAndOpen =
        (*env)->GetMethodID (env, cls, "resolveURIAndOpen",
                             "Ljava/lang/String;Ljava/lang/String)Lgnu/xml/libxmlj/transform/LibxmlDocument;");
    }
  libxmlDocument =
    (*env)->CallObjectMethod (env,
                              saxContext->obj,
                              saxContext->resolveURIAndOpen,
                              hrefString,
                              baseString);

  doc = (xmlDocPtr) xmljGetNodeID (env, libxmlDocument);

  (*env)->DeleteLocalRef (env, libxmlDocument);

  if ((*env)->ExceptionOccurred (env))
    {
      /* Report to ErrorAdapter here? */
      return NULL;
    }
  else
    {
      return doc;
    }
}

/*xmlParserInputPtr
xmljLoadExternalEntity (const char *URL, const char *ID,
                        xmlParserCtxtPtr ctxt)
{
  SaxErrorContext *saxErrorContext = xmljGetThreadContext ();

  JNIEnv *env = saxErrorContext->env;

  jstring hrefString = (*env)->NewStringUTF (env, URL);
  jstring baseString = saxErrorContext->systemId;

  jobject sourceWrapper = (*env)->CallObjectMethod (env,
                                                    saxErrorContext->
                                                    saxErrorAdapter,
                                                    saxErrorContext->
                                                    resolveURIMethodID,
                                                    hrefString,
                                                    baseString);

  (*env)->DeleteLocalRef (env, hrefString);

  if (NULL == sourceWrapper)
    {
      return NULL;
    }
  else
    {
      InputStreamContext *inputContext;
      xmlParserInputBufferPtr inputBuffer;
      xmlParserInputPtr inputStream;

      jobject sourceInputStream = (*env)->CallObjectMethod (env,
                                                            sourceWrapper,
                                                            saxErrorContext->
                                                            getInputStreamMethodID);

      (*env)->DeleteLocalRef (env, sourceWrapper);

      if ((*env)->ExceptionOccurred (env))
        {
          -* Report to ErrorAdapter *-
          return NULL;
        }

      inputContext = xmljNewInputStreamContext (env, sourceInputStream);

      inputBuffer
        = xmlParserInputBufferCreateIO (xmljInputReadCallback,
                                        xmljInputCloseCallback,
                                        inputContext, XML_CHAR_ENCODING_NONE);

      inputStream = xmlNewInputStream (ctxt);
      if (inputStream == NULL)
        {
          return (NULL);
        }

      inputStream->filename = NULL;
      inputStream->directory = NULL;
      inputStream->buf = inputBuffer;

      inputStream->base = inputStream->buf->buffer->content;
      inputStream->cur = inputStream->buf->buffer->content;
      inputStream->end = &inputStream->base[inputStream->buf->buffer->use];
      if ((ctxt->directory == NULL) && (inputStream->directory != NULL))
        ctxt->directory =
          (char *) xmlStrdup ((const xmlChar *) inputStream->directory);
      return (inputStream);
    }
}*/

/* Key for the thread-specific buffer */
static pthread_key_t thread_context_key;

/* Once-only initialisation of the key */
static pthread_once_t thread_context_once = PTHREAD_ONCE_INIT;

static void
thread_context_key_alloc (void);

/* Allocate the key */
static void
thread_context_key_alloc ()
{
  pthread_key_create (&thread_context_key, NULL);
}

void
xmljSetThreadContext (SAXParseContext * context)
{
  pthread_once (&thread_context_once, thread_context_key_alloc);
  pthread_setspecific (thread_context_key, context);
}

void
xmljClearThreadContext (void)
{
  pthread_setspecific (thread_context_key, NULL);
}

/* Return the thread-specific buffer */
SAXParseContext *
xmljGetThreadContext (void)
{
  return (SAXParseContext *) pthread_getspecific (thread_context_key);
}