Java File.getAbsolutePath方法代码示例

import java.io.File; //导入方法依赖的package包/类
/**
 * download submission or assignment from server
 * @param toDown assignment or submission to be downloaded
 */
private void downloadFrom(Assignment toDown ) {
    client.sendUTFDataToServer("DOWNLOAD_SUBS");
    client.sendObjectToServer(toDown);
    
    JFileChooser chooser = new JFileChooser();
    chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
    chooser.showOpenDialog(this);
    File downFolder = chooser.getSelectedFile();
    
    
    byte[] data = (byte[]) client.getObjectFromServer();
    try {
        fos = new FileOutputStream(downFolder.getAbsolutePath() + "/" + toDown.getName() + ".zip");
        fos.write(data);
        fos.close();
    } catch (IOException ex) {
        Logger.getLogger(StudentMain.class.getName()).log(Level.SEVERE, null, ex);
    }
    
    
}
 

import java.io.File; //导入方法依赖的package包/类
public File getChild(File parent, String fileName) {
    if (fileName.startsWith("\\")
        && !fileName.startsWith("\\\\")
        && isFileSystem(parent)) {

        //Path is relative to the root of parent's drive
        String path = parent.getAbsolutePath();
        if (path.length() >= 2
            && path.charAt(1) == ':'
            && Character.isLetter(path.charAt(0))) {

            return createFileObject(path.substring(0, 2) + fileName);
        }
    }
    return super.getChild(parent, fileName);
}
 

import java.io.File; //导入方法依赖的package包/类
public static File getImageLabels(@Nullable Context context) {
    File dir = new File(FileUtils.getCacheDir(context).getAbsolutePath() + "/"
            + TF_CACHE_DIRECTORY);
    if (!dir.exists()) dir.mkdir();

    return new File(dir.getAbsolutePath() + "/"
            + "imagenet_comp_graph_label_strings.txt");
}
 

import java.io.File; //导入方法依赖的package包/类
/**
 * Set the local destination for the downloaded file to a path within
 * the application's external files directory (as returned by
 * {@link Context#getExternalFilesDir(String)}.
 * <p>
 * The downloaded file is not scanned by MediaScanner. But it can be
 * made scannable by calling {@link #allowScanningByMediaScanner()}.
 *
 * @param context the {@link Context} to use in determining the external
 *            files directory
 * @param dirType the directory type to pass to
 *            {@link Context#getExternalFilesDir(String)}
 * @param subPath the path within the external directory, including the
 *            destination filename
 * @return this object
 * @throws IllegalStateException If the external storage directory
 *             cannot be found or created.
 */
public Request setDestinationInExternalFilesDir(Context context, String dirType,
        String subPath) {
    final File file = context.getExternalFilesDir(dirType);
    if (file == null) {
        throw new IllegalStateException("Failed to get external storage files directory");
    } else if (file.exists()) {
        if (!file.isDirectory()) {
            throw new IllegalStateException(file.getAbsolutePath() +
                    " already exists and is not a directory");
        }
    } else {
        if (!file.mkdirs()) {
            throw new IllegalStateException("Unable to create directory: "+
                    file.getAbsolutePath());
        }
    }
    setDestinationFromBase(file, subPath);
    return this;
}
 

import java.io.File; //导入方法依赖的package包/类
static String getAjavaCmd(String cmdStr) {
    File binDir = new File(JavaHome, "bin");
    File unpack200File = IsWindows
            ? new File(binDir, cmdStr + ".exe")
            : new File(binDir, cmdStr);

    String cmd = unpack200File.getAbsolutePath();
    if (!unpack200File.canExecute()) {
        throw new RuntimeException("please check" +
                cmd + " exists and is executable");
    }
    return cmd;
}
 

import java.io.File; //导入方法依赖的package包/类
public OdsDll(String nativeDllPath) {

		if (dllYetToBeInitialized) {

			String actualNativeDllPath = "ods";
			if (nativeDllPath != null) {
				File nativeDllFileOrDir = new File(nativeDllPath);
				if (!nativeDllFileOrDir.exists()) {
					throw new RuntimeException("Invalid native DLL path: " + nativeDllFileOrDir.getAbsolutePath());
				}
				if (nativeDllFileOrDir.isDirectory()) {
					actualNativeDllPath = nativeDllPath + "/ods";
				} else {
					actualNativeDllPath = nativeDllPath;
					for (String ext : new String[]{ ".so", ".dll" }) {
						if (actualNativeDllPath.toLowerCase().endsWith(ext))
							actualNativeDllPath = actualNativeDllPath.substring(
									0, actualNativeDllPath.length() - ext.length());
					}
				}
			}

			// Delft3D-Flow uses ifort for both linux and windows.
			// If in the future another compiler is needed, e.g. gfortran,
			// see org.openda.model_efdc_dll.EfdcDLL for an example of function name mapping.
			if(BBUtils.RUNNING_ON_WINDOWS){
				odsWinIfortDll = (OdsWinIfortDll) Native.loadLibrary(actualNativeDllPath, OdsWinIfortDll.class);

			}else{
				// GfortranFunctionMapper gFortranMapper = new GfortranFunctionMapper();
				// HashMap<String, String> gFortranMap = gFortranMapper.getMap();
				odsWinIfortDll = (OdsWinIfortDll) Native.loadLibrary(
						actualNativeDllPath, OdsWinIfortDll.class); // , gFortranMap);
			}
			dllYetToBeInitialized = true;
		}
	}
 

import java.io.File; //导入方法依赖的package包/类
/**
 * 往SDCard的私有File目录下保存文件
 *
 * @param data
 * @param type
 * @param filename
 * @param context
 * @return
 */
public static boolean saveData2SDCardPrivateFileDir(byte[] data, String type, String filename, Context context) {
    if (isSDCardMounted()) {
        File path = context.getExternalFilesDir(type);
        if (!path.exists()) {
            path.mkdir();
        }
        String file = path.getAbsolutePath() + File.separator + filename;
        try {
            OutputStream os = new FileOutputStream(file);
            os.write(data);
            os.close();
            return true;
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    return false;
}
 

import java.io.File; //导入方法依赖的package包/类
private static void createNewFile(File file_) {
    if (file_ == null) {
        return;
    }
    if (!(__createNewFile(file_)))
        throw new RuntimeException(file_.getAbsolutePath()
                + " doesn't be created!");
}
 

import java.io.File; //导入方法依赖的package包/类
private long getBlockSize() {
    if (mBlockSize == 0L) {
        File chatLogDir = mServerConfigManager.getChatLogDir();
        if (!chatLogDir.exists())
            return 0L;
        StatFs statFs = new StatFs(chatLogDir.getAbsolutePath());
        if (Build.VERSION.SDK_INT >= 18)
            mBlockSize = statFs.getBlockSizeLong();
        else
            mBlockSize = statFs.getBlockSize();
    }
    return mBlockSize;
}
 

import java.io.File; //导入方法依赖的package包/类
public static String searchDirForPath(File dir, int bucketId) {
    File[] files = dir.listFiles();
    if (files != null) {
        for (File file : files) {
            if (file.isDirectory()) {
                String path = file.getAbsolutePath();
                if (GalleryUtils.getBucketId(path) == bucketId) {
                    return path;
                } else {
                    path = searchDirForPath(file, bucketId);
                    if (path != null) return path;
                }
            }
        }
    }
    return null;
}
 

import java.io.File; //导入方法依赖的package包/类
/**
 * This method does access the actual storage to get data about the file
 */
public ZipFile2(File file) {
    if (file == null)
        throw new IllegalArgumentException("file must not be null");

    //remove file://
    if(file.getAbsolutePath().startsWith("file://"))
        mPath = file.getAbsolutePath().substring("file://".length());
    else
        mPath = file.getAbsolutePath();
    mLength = file.length();
    mIsFile = file.isFile();
    mLastModified = file.lastModified();
}
 

import java.io.File; //导入方法依赖的package包/类
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == Activity.RESULT_OK) {
        switch (requestCode) {
            case AppConstants.REQUEST_IMAGE_CAPTURE:
                try {
                    PhotoDescriptionTO photoDescriptionTO = currentMedicine.getPhotoDescriptionTO();

                    File fullSizePhoto = new File(photoDescriptionTO.getFullSizePhotoUri());
                    File smallSizePhoto = PhotoUtils.prepareSmallSizePhotoFile(fullSizePhoto);
                    String smallSizePhotoAbsolutePath = smallSizePhoto.getAbsolutePath();
                    photoDescriptionTO.setSmallSizePhotoUri(smallSizePhotoAbsolutePath);

                    setMedicineThumbnail(photoDescriptionTO);
                } catch (Exception e) {
                    // Had to remove logs, becasue of google play
                }
                break;
            case AppConstants.REQUEST_VOICE_INPUT_MEDICINE_NAME:
                String potentialMedicineName = retrievePotentialMedicineNameFromVoiceRecognizedData(data);

                if (!TextUtils.isEmpty(potentialMedicineName)) {
                    nameEdit.setText(potentialMedicineName);
                }
                break;
            case AppConstants.REQUEST_VOICE_INPUT_MEDICINE_NOTES:
                String potentialMedicineNotes = retrievePotentialMedicineNameFromVoiceRecognizedData(data);

                if (!TextUtils.isEmpty(potentialMedicineNotes)) {
                    notesEdit.setText(potentialMedicineNotes);
                }
                break;
            default:
                break;
        }
    }
}
 

import java.io.File; //导入方法依赖的package包/类
@Override
public CsvTestData importTestData(File file) {
    CsvTestData csvData = new CsvTestData(file.getAbsolutePath());
    csvData.loadTableModel();
    csvData.setLocation(getLocation() + File.separator + file.getName());
    csvData.saveChanges();
    return csvData;
}
 

import java.io.File; //导入方法依赖的package包/类
public void loadLibrary(String jarpath, Context context) {
    this.context = context;

    File jarfile = new File(jarpath);
    if(!jarfile.exists())
        throw new IllegalArgumentException("Could not find library: " + jarpath);

    this.jarpath = jarpath;

    File optimizedLibrarypath = context.getDir("dex", 0);

    dexClassLoader = new DexClassLoader(jarpath, optimizedLibrarypath.getAbsolutePath(),
                                        null, context.getClassLoader());

}
 

import java.io.File; //导入方法依赖的package包/类
public PipeDecoder(){
	pipeBuffer = 10000;

	//Use sensible defaults depending on the platform
	if(System.getProperty("os.name").indexOf("indows") > 0 ){
		pipeEnvironment = "cmd.exe";
		pipeArgument = "/C";
	}else if(new File("/bin/bash").exists()){
		pipeEnvironment = "/bin/bash";
		pipeArgument = "-c";
	}else if (new File("/system/bin/sh").exists()){
		//probably we are on android here
		pipeEnvironment = "/system/bin/sh";
		pipeArgument = "-c";
	}else{
		LOG.severe("Coud not find a command line environment (cmd.exe or /bin/bash)");
		throw new Error("Decoding via a pipe will not work: Coud not find a command line environment (cmd.exe or /bin/bash)");
	}
	
	String path = System.getenv("PATH");
	String arguments = " -ss %input_seeking%  %number_of_seconds% -i \"%resource%\" -vn -ar %sample_rate% -ac %channels% -sample_fmt s16 -f s16le pipe:1";
	if(isAvailable("ffmpeg")){
		LOG.info("found ffmpeg on the path (" + path + "). Will use ffmpeg for decoding media files.");
		pipeCommand = "ffmpeg" + arguments;	
	}else if (isAvailable("avconv")){
		LOG.info("found avconv on your path(" + path + "). Will use avconv for decoding media files.");
		pipeCommand = "avconv" + arguments;
	}else {
		if(isAndroid()) {
			String tempDirectory = System.getProperty("java.io.tmpdir");
			printErrorstream=true;
			File f = new File(tempDirectory, "ffmpeg");
			if (f.exists() && f.length() > 1000000 && f.canExecute()) {
				decoderBinaryAbsolutePath = f.getAbsolutePath();
			} else {
				LOG.severe("Could not find an ffmpeg binary for your Android system. Did you forget calling: 'new AndroidFFMPEGLocator(this);' ?");
				LOG.severe("Tried to unpack a statically compiled ffmpeg binary for your architecture to: " + f.getAbsolutePath());
			}
		}else{
			LOG.warning("Dit not find ffmpeg or avconv on your path(" + path + "), will try to download it automatically.");
			FFMPEGDownloader downloader = new FFMPEGDownloader();
			decoderBinaryAbsolutePath = downloader.ffmpegBinary();
			if(decoderBinaryAbsolutePath==null){
				LOG.severe("Could not download an ffmpeg binary automatically for your system.");
			}
		}
		if(decoderBinaryAbsolutePath == null){
			pipeCommand = "false";
			throw new Error("Decoding via a pipe will not work: Could not find an ffmpeg binary for your system");
		}else{
			pipeCommand = '"' + decoderBinaryAbsolutePath + '"' + arguments;
		}
	}
}