/src/logging-log4cxx/src/main/cpp/fileoutputstream.cpp

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <log4cxx/logstring.h>
#include <log4cxx/helpers/fileoutputstream.h>
#include <log4cxx/helpers/pool.h>
#include <log4cxx/helpers/exception.h>
#include <log4cxx/helpers/bytebuffer.h>
#include <apr_file_io.h>

using namespace LOG4CXX_NS;
using namespace LOG4CXX_NS::helpers;

struct FileOutputStream::FileOutputStreamPrivate
{
  FileOutputStreamPrivate() : fileptr(nullptr) {}

  Pool pool;
  apr_file_t* fileptr;
};

IMPLEMENT_LOG4CXX_OBJECT(FileOutputStream)

FileOutputStream::FileOutputStream(const LogString& filename,
  bool append) : m_priv(std::make_unique<FileOutputStreamPrivate>())
{
  m_priv->fileptr = open(filename, append, m_priv->pool);
}

FileOutputStream::FileOutputStream(const logchar* filename,
  bool append) : m_priv(std::make_unique<FileOutputStreamPrivate>())
{
  m_priv->fileptr = open(filename, append, m_priv->pool);
}

apr_file_t* FileOutputStream::open(const LogString& filename,
  bool append, Pool& pool)
{
  apr_fileperms_t perm = APR_OS_DEFAULT;
  apr_int32_t flags = APR_WRITE | APR_CREATE;

  if (append)
  {
    flags |= APR_APPEND;
  }
  else
  {
    flags |= APR_TRUNCATE;
  }

  File fn;
  fn.setPath(filename);
  apr_file_t* fileptr = 0;
  apr_status_t stat = fn.open(&fileptr, flags, perm, pool);

  if (stat != APR_SUCCESS)
  {
    throw IOException(filename, stat);
  }

  return fileptr;
}

FileOutputStream::~FileOutputStream()
{
  if (m_priv->fileptr)
  {
    apr_file_close(m_priv->fileptr);
  }
}

void FileOutputStream::close(Pool& /* p */)
{
  if (m_priv->fileptr)
  {
    apr_status_t stat = apr_file_close(m_priv->fileptr);

    if (stat != APR_SUCCESS)
    {
      throw IOException(stat);
    }

    m_priv->fileptr = NULL;
  }
}

void FileOutputStream::flush(Pool& /* p */)
{
}

void FileOutputStream::write(ByteBuffer& buf, Pool& /* p */ )
{
  if (m_priv->fileptr == NULL)
  {
    throw NullPointerException(LOG4CXX_STR("FileOutputStream"));
  }

  size_t nbytes = buf.remaining();
  size_t pos = buf.position();
  const char* data = buf.data();

  while (nbytes > 0)
  {
    apr_status_t stat = apr_file_write(
        m_priv->fileptr, data + pos, &nbytes);

    if (stat != APR_SUCCESS)
    {
      throw IOException(stat);
    }

    pos += nbytes;
    buf.position(pos);
    nbytes = buf.remaining();
  }
}

apr_file_t* FileOutputStream::getFilePtr() const{
  return m_priv->fileptr;
}


Coverage Report

Created: 2025-08-24 06:21