Java FileUtils类代码示例

import org.scijava.util.FileUtils; //导入依赖的package包/类
@Override
public Graph loadGraph(final Location source, final String modelName,
	final String graphPath) throws IOException
{
	final String key = modelName + "/" + graphPath;

	// If the graph is already cached in memory, return it.
	if (graphs.containsKey(key)) return graphs.get(key);

	// Get a local directory with unpacked model data.
	final File modelDir = modelDir(source, modelName);

	// Read the serialized graph.
	final byte[] graphDef = FileUtils.readFile(new File(modelDir, graphPath));

	// Convert to a TensorFlow Graph object.
	final Graph graph = new Graph();
	graph.importGraphDef(graphDef);

	// Cache the result for performance next time.
	graphs.put(key, graph);

	return graph;
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
public static File loadRemoteFile(final URL url) throws IllegalArgumentException, SecurityException, IOException {

		// If a file URI, simply return local file
		if (url.toString().startsWith("file:"))
			return new File(url.getFile());

		final String filename = Paths.get(url.getPath()).getFileName().toString();
		if (filename == null || filename.trim().length() < 3)
			throw new IllegalArgumentException("URL does not contain a valid file path?");
		final File tempDir = FileUtils.createTemporaryDirectory("ipnat", null);
		final File file = new File(tempDir, filename);
		final InputStream in = url.openStream();
		Files.copy(in, file.toPath(), StandardCopyOption.REPLACE_EXISTING);
		String data = null;
		final BufferedReader br = new BufferedReader(new FileReader(file));
		data = br.readLine();
		br.close();
		if (data == null || data.isEmpty())
			throw new IOException("No data could be read from parsed URL");
		return file;
	}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
@Override
public boolean supports(final File file) {
	final String extension = FileUtils.getExtension(file);
	if (!EXTENSION.equalsIgnoreCase(extension)) {
		return false;
	}

	try (FileInputStream reader = new FileInputStream(file)) {
		final byte[] dataStart = new byte[5];
		reader.read(dataStart, 0, 5);
		// ASCII STL files begin with the line solid <name> whereas binary files
		// have an arbitrary header
		return !"solid".equals(Arrays.toString(dataStart));
	}
	catch (IOException e) {
		return false;
	}
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
@Setup(Level.Trial)
public void setup() throws Exception {
	// cleanup
	baseDirectory = new File("output").getAbsoluteFile();
	FileUtils.deleteRecursively(baseDirectory);
	baseDirectory.mkdirs();

	// Read test image
	final File testImage = new File(getClass().getResource(IMG1).getPath());
	m_sfimg = opener.openImgs(testImage.getPath()).get(0);

	m_tiffPath = getFormatPath("tif");
	m_omeTiffPath = getFormatPath("ome.tif");
	m_pngPath = getFormatPath("png");
	m_epsPath = getFormatPath("eps");
	m_icsPath = getFormatPath("ics");
	m_jpgPath = getFormatPath("jpg");
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
@Before
public void setup() throws Exception {
	// cleanup
	baseDirectory = new File("output").getAbsoluteFile();
	FileUtils.deleteRecursively(baseDirectory);
	baseDirectory.mkdirs();

	// Read test image
	final File testImage = new File(getClass().getResource(IMG1).getPath());
	m_sfimg = opener.openImgs(testImage.getPath()).get(0);

	m_tiffPath = getFormatPath("tif");
	m_omeTiffPath = getFormatPath("ome.tif");
	m_pngPath = getFormatPath("png");
	m_epsPath = getFormatPath("eps");
	m_icsPath = getFormatPath("ics");
	m_jpgPath = getFormatPath("jpg");
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
@Override
public Path getTempFolder() {
    log.debug("getTempFolder()");
    try {
        return FileUtils.createTemporaryDirectory("scijava-jupyter-kernel", null).toPath();
    }
    catch (final IOException exc) {
        throw new RuntimeException(exc);
    }
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
@Before
public void setUp() throws IOException {
	context = new Context(Java3DService.class);
	j3d = context.service(Java3DService.class);

	tmp1 = FileUtils.createTemporaryDirectory("libExt", "1");
	tmp2 = FileUtils.createTemporaryDirectory("libExt", "2");
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
protected < T > void write( final Iterable< T > source, final String path ) throws IOException
{
	final StringBuilder sb = new StringBuilder( "" );
	final Iterator< T > it = source.iterator();
	if ( it.hasNext() )
		sb.append( it.next() );
	while ( it.hasNext() )
		sb.append( "\n" ).append( it.next() );
	FileUtils.writeFile( new File( path ), sb.toString().getBytes() );
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
@Test
public void testReadmesExample() throws Exception {
	// extract the example script
	final File readme = new File("README.md");
	final String contents = new String(FileUtils.readFile(readme), "UTF-8");
	final String telltale = String.format("```python%n");
	final int begin = contents.indexOf(telltale) + telltale.length();
	assertTrue(begin > telltale.length());
	assertTrue(contents.indexOf(telltale, begin) < 0);
	final int end = contents.indexOf(String.format("```%n"), begin);
	assertTrue(end > 0);
	final String snippet = contents.substring(begin, end);
	assertTrue(snippet.startsWith("# @ImageJ ij"));

	final Context context = new Context();
	final ScriptService script = context.getService(ScriptService.class);

	// create mock ImageJ gateway
	script.addAlias("ImageJ", Mock.class);
	final ScriptModule module =
		script.run("op-example.py", snippet, true).get();
	assertNotNull(module);
	module.run();

	final Mock ij = context.getService(Mock.class);
	assertEquals(3, ij.images.size());
	assertEquals(11.906, ij.getPixel("sinusoid", 50, 50), 1e-3);
	assertEquals(100, ij.getPixel("gradient", 50, 50), 1e-3);
	assertEquals(111.906, ij.getPixel("composite", 50, 50), 1e-3);
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
private void parsePosition(final Metadata meta, final int posIndex)
	throws IOException, FormatException
{
	final Position p = meta.getPositions().get(posIndex);
	final byte[] bytes = FileUtils.readFile(new File(p.metadataFile));
	final String s = DigestUtils.string(bytes);
	parsePosition(s, meta, posIndex);

	buildTIFFList(meta, posIndex);
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
/** Parse metadata values from the Acqusition.xml file. */
private void parseXMLFile(final Metadata meta, final int imageIndex)
	throws IOException
{
	final Position p = meta.getPositions().get(imageIndex);
	final byte[] bytes = FileUtils.readFile(new File(p.xmlFile));
	String xmlData = DigestUtils.string(bytes);
	xmlData = xmlService.sanitizeXML(xmlData);

	final DefaultHandler handler = new MicromanagerHandler();
	xmlService.parseXML(xmlData, handler);
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
public void openLastLoadedResource() {
	if (lastLoadedURL == null) {
		return;
	}
	final TextEditor editor = new TextEditor(context);
	editor.loadTemplate(lastLoadedURL);
	editor.setTitle(FileUtils.shortenPath(lastLoadedURL.getPath(), 0));
	editor.setVisible(true);
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
/** Generates OMERO script stubs for all available ImageJ modules. */
public int generateAll(final File omeroDir) throws IOException {
	final File scriptsDir = new File(new File(omeroDir, "lib"), "scripts");
	if (!scriptsDir.exists()) {
		System.err.println("OMERO scripts directory not found: " + scriptsDir);
		return 1;
	}

	final File dir = new File(scriptsDir, namespace);
	if (dir.exists()) {
		if (!forceOverwrite) {
			System.err.println("Path already exists: " + dir);
			System.err.println("Please run with --force if you wish to generate scripts.");
			return 2;
		}
		FileUtils.deleteRecursively(dir);
	}

	// create the directory
	final boolean success = dir.mkdirs();
	if (!success) {
		System.err.println("Could not create directory: " + dir);
		return 3;
	}

	// we will execute ImageJ.app/lib/run-script
	final File baseDir = appService.getApp().getBaseDirectory();
	final File libDir = new File(baseDir, "lib");
	final File runScript = new File(libDir, "run-script");
	final String exe = runScript.getAbsolutePath();

	// generate the scripts
	generateAll(menuService.getMenu(), dir, exe, 0);
	return 0;
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
@After
public void tearDown() {
	FileUtils.deleteRecursively(tmp1);
	FileUtils.deleteRecursively(tmp2);
}
 

import org.scijava.util.FileUtils; //导入依赖的package包/类
public File getLastLoadedResource() {
	return FileUtils.urlToFile(lastLoadedURL);
}