C++ FileHandle::exists方法代码示例

/** Copies this file or directory to the specified file or directory. If this handle is a file, then 1) if the destination is a
* file, it is overwritten, or 2) if the destination is a directory, this file is copied into it, or 3) if the destination
* doesn't exist, {@link #mkdirs()} is called on the destination's parent and this file is copied into it with a new name. If
* this handle is a directory, then 1) if the destination is a file, GdxRuntimeException is thrown, or 2) if the destination is
* a directory, this directory is copied recursively into it as a subdirectory, overwriting existing files, or 3) if the
* destination doesn't exist, {@link #mkdirs()} is called on the destination and this directory is copied recursively into it
* as a subdirectory.
* @throw GdxRuntimeException if the destination file handle is a {@link FileType#Classpath} or {@link FileType#Internal} file,
*        or copying failed. */
void FileHandle::copyTo(const FileHandle& destination) const
{
	/*
	boolean sourceDir = isDirectory();
	if (!sourceDir) {
	if (dest.isDirectory()) dest = dest.child(name());
	copyFile(this, dest);
	return;
	}
	if (dest.exists()) {
	if (!dest.isDirectory()) throw GdxRuntimeException("Destination exists but is not a directory: " + dest);
	} else {
	dest.mkdirs();
	if (!dest.isDirectory()) throw GdxRuntimeException("Destination directory cannot be created: " + dest);
	}
	if (!sourceDir) dest = dest.child(name());
	copyDirectory(this, dest);
	*/
	FileHandle dest = destination;
	bool sourceIsDir = isDirectory();
	if (!sourceIsDir) 
	{
		if (dest.isDirectory()) 
		{
			dest = dest.child(name());
		}
		copyFile(*this, dest);
		return;
	}

	if (dest.exists()) 
	{
		if (!dest.isDirectory()) 
			throw GdxRuntimeException("Destination exists but is not a directory: " + dest.toString());
	} 
	else 
	{
		dest.mkdirs();
		if (!dest.isDirectory()) 
			throw GdxRuntimeException("Destination directory cannot be created: " + dest.toString());
	}

	if (!sourceIsDir)
	{
		dest = dest.child(name());
	}
	copyDirectory(*this, dest);
}

void FilesTest::testAbsolute()
{
	std::string path; 
	Gdx.files->getExternalStoragePath(path);
	path += "/meow";

	FileHandle handle = Gdx.files->absoluteHandle(path);
	handle.remove();
	if(handle.exists()) 
		fail();
	if(handle.isDirectory()) 
		fail();
	if(handle.remove()) 
		fail();

	std::vector<FileHandle> handles;
	handle.list(handles);
	if(handles.size() != 0)
		fail();

	if(handle.child("meow").exists()) 
		fail();

	if(!handle.parent().exists()) 
		fail();
	try 
	{
		std::ifstream in;
		handle.read(in);
		in.close();
		fail();
	}
	catch(GdxRuntimeException ignored)
	{
	}
	handle.mkdirs();
	if(!handle.exists()) 
		fail();
	if(!handle.isDirectory()) 
		fail();
	handle.list(handles);
	if(handles.size() != 0)
		fail();

	handle.child("meow").mkdirs();

	handle.list(handles);
	if(handles.size() != 1) 
		fail();
	
	FileHandle child = handles[0];
	if(child.name() != "meow")
		fail();
	
	if(!child.parent().exists()) 
		fail();
	
	if(!handle.removeRecursive()) 
		fail();
	
	
	if(handle.exists()) 
		fail();
	
	std::ofstream output;
	handle.write(false, output);
	output << "moo";
	output.close();
	if(!handle.exists()) 
		fail();

	if(handle.length() != 3) 
		fail();
	
	FileHandle copy = Gdx.files->absoluteHandle(path + "-copy");
	copy.remove();
	if(copy.exists()) 
		fail();
	
	handle.copyTo(copy);
	if(!copy.exists()) 
		fail();

	if(copy.length() != 3) 
		fail();
	
	FileHandle move = Gdx.files->absoluteHandle(path + "-move");
	move.remove();
	if(move.exists()) 
		fail();
	copy.moveTo(move);
	if(!move.exists()) 
		fail();
	if(move.length() != 3) 
		fail();
	move.removeRecursive();
	if(move.exists()) 
		fail();

	std::ifstream input;
//.........这里部分代码省略.........

void FilesTest::testInternal()
{
	FileHandle handle = Gdx.files->internalHandle("data/badlogic.jpg");
	if(!handle.exists()) 
		fail();
	if(handle.isDirectory()) 
		fail();

	try 
	{
		handle.remove();
		fail();
	}
	catch(GdxRuntimeException expected)
	{
	}

	std::vector<FileHandle> files;
	handle.list(files);
	if(files.size() != 0)
		fail();
	if(!handle.parent().exists()) 
		fail();
	try 
	{
		std::ifstream input;
		handle.read(input);
		input.close();
		//TODO: why???
		fail();
	}
	catch(GdxRuntimeException ignored)
	{
	}

	FileHandle dir;
	dir = Gdx.files->internalHandle("data");

	if(!dir.exists()) 
		fail();
	if(!dir.isDirectory()) 
		fail();

	dir.list(files);
	if(files.size() == 0)
		fail();
	
	FileHandle child = dir.child("badlogic.jpg");
	if(child.name() != "badlogic.jpg")
		fail();

	if(child.nameWithoutExtension() != "badlogic")
		fail();

	if(child.extension() != "jpg") 
		fail();
	
	if(!child.parent().exists()) 
		fail();

	FileHandle copy = Gdx.files->externalHandle("badlogic.jpg-copy");
	copy.remove();
	if(copy.exists()) 
		fail();
	handle.copyTo(copy);

	if(!copy.exists()) 
		fail();
	if(copy.length() != 68465) 
		fail();
	copy.remove();
	
	if(copy.exists()) 
		fail();
}