1 /*
2 Source File : InputFile.cpp
3
4
5 Copyright 2011 Gal Kahana PDFWriter
6
7 Licensed under the Apache License, Version 2.0 (the "License");
8 you may not use this file except in compliance with the License.
9 You may obtain a copy of the License at
10
11 http://www.apache.org/licenses/LICENSE-2.0
12
13 Unless required by applicable law or agreed to in writing, software
14 distributed under the License is distributed on an "AS IS" BASIS,
15 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 See the License for the specific language governing permissions and
17 limitations under the License.
18
19
20 */
21 #include "InputFile.h"
22 #include "InputBufferedStream.h"
23 #include "InputFileStream.h"
24 #include "Trace.h"
25
26 using namespace PDFHummus;
27
InputFile(void)28 InputFile::InputFile(void)
29 {
30 mInputStream = NULL;
31 mFileStream = NULL;
32 }
33
~InputFile(void)34 InputFile::~InputFile(void)
35 {
36 CloseFile();
37 }
38
OpenFile(const std::string & inFilePath)39 EStatusCode InputFile::OpenFile(const std::string& inFilePath)
40 {
41 EStatusCode status;
42 do
43 {
44 status = CloseFile();
45 if(status != PDFHummus::eSuccess)
46 {
47 TRACE_LOG1("InputFile::OpenFile, Unexpected Failure. Couldn't close previously open file - %s",mFilePath.c_str());
48 break;
49 }
50
51 InputFileStream* inputFileStream = new InputFileStream();
52 status = inputFileStream->Open(inFilePath); // explicitly open, so status may be retrieved
53 if(status != PDFHummus::eSuccess)
54 {
55 TRACE_LOG1("InputFile::OpenFile, Unexpected Failure. Cannot open file for reading - %s",inFilePath.c_str());
56 delete inputFileStream;
57 break;
58 }
59
60 mInputStream = new InputBufferedStream(inputFileStream);
61 mFileStream = inputFileStream;
62 mFilePath = inFilePath;
63 } while(false);
64 return status;
65 }
66
CloseFile()67 EStatusCode InputFile::CloseFile()
68 {
69 if(NULL == mInputStream)
70 {
71 return PDFHummus::eSuccess;
72 }
73 else
74 {
75 EStatusCode status = mFileStream->Close(); // explicitly close, so status may be retrieved
76
77 delete mInputStream; // will delete the referenced file stream as well
78 mInputStream = NULL;
79 mFileStream = NULL;
80 return status;
81 }
82 }
83
84
GetInputStream()85 IByteReaderWithPosition* InputFile::GetInputStream()
86 {
87 return mInputStream;
88 }
89
GetFilePath()90 const std::string& InputFile::GetFilePath()
91 {
92 return mFilePath;
93 }
94
GetFileSize()95 LongFilePositionType InputFile::GetFileSize()
96 {
97 if(mInputStream)
98 {
99 InputFileStream* inputFileStream = (InputFileStream*)mInputStream->GetSourceStream();
100
101 return inputFileStream->GetFileSize();
102 }
103 else
104 return 0;
105 }