| /* |
| * 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. |
| */ |
| |
| #ifndef _LOG4CXX_HELPERS_FILEINPUTSTREAM_H |
| #define _LOG4CXX_HELPERS_FILEINPUTSTREAM_H |
| |
| #include <log4cxx/helpers/inputstream.h> |
| #include <log4cxx/file.h> |
| #include <log4cxx/helpers/pool.h> |
| |
| |
| namespace log4cxx |
| { |
| |
| namespace helpers |
| { |
| |
| /** |
| * InputStream implemented on top of APR file IO. |
| * |
| */ |
| class LOG4CXX_EXPORT FileInputStream : public InputStream |
| { |
| private: |
| Pool pool; |
| apr_file_t* fileptr; |
| |
| public: |
| DECLARE_ABSTRACT_LOG4CXX_OBJECT(FileInputStream) |
| BEGIN_LOG4CXX_CAST_MAP() |
| LOG4CXX_CAST_ENTRY(FileInputStream) |
| LOG4CXX_CAST_ENTRY_CHAIN(InputStream) |
| END_LOG4CXX_CAST_MAP() |
| |
| /** |
| * Creates a FileInputStream by opening a connection to an actual |
| * file, the file named by the path name name in the file system. |
| * |
| * @param filename The system-dependent file name. |
| */ |
| FileInputStream(const LogString& filename); |
| FileInputStream(const logchar* filename); |
| |
| /** |
| * Creates a FileInputStream by opening a connection to an actual |
| * file, the file named by the File object file in the file system. |
| * |
| * @param aFile The file to be opened for reading. |
| */ |
| FileInputStream(const File& aFile); |
| |
| virtual ~FileInputStream(); |
| |
| /** |
| * Closes this file input stream and releases any system |
| * resources associated with the stream. |
| */ |
| virtual void close(); |
| |
| /** |
| * Reads a sequence of bytes into the given buffer. |
| * |
| * @param buf The buffer into which bytes are to be transferred. |
| * @return the total number of bytes read into the buffer, or -1 if there |
| * is no more data because the end of the stream has been reached. |
| */ |
| virtual int read(ByteBuffer& buf); |
| |
| private: |
| |
| FileInputStream(const FileInputStream&); |
| |
| FileInputStream& operator=(const FileInputStream&); |
| void open(const LogString&); |
| |
| }; |
| |
| LOG4CXX_PTR_DEF(FileInputStream); |
| } // namespace helpers |
| |
| } //namespace log4cxx |
| |
| #endif //_LOG4CXX_HELPERS_FILEINPUTSTREAM_H |