Example usage for java.io File canRead

Introduction

In this page you can find the example usage for java.io File canRead.

Prototype

public boolean canRead()

Source Link

Document

Tests whether the application can read the file denoted by this abstract pathname.

Usage

From source file:com.genericworkflownodes.knime.nodes.io.outputfiles.OutputFilesNodeModel.java

@Override
protected PortObject[] execute(PortObject[] inObjects, ExecutionContext exec) throws Exception {
    IURIPortObject obj = (IURIPortObject) inObjects[0];
    List<URIContent> uris = obj.getURIContents();

    if (uris.size() == 0) {
        throw new Exception("There were no URIs in the supplied IURIPortObject");
    }//  www  .j a v  a2  s.  c  o  m

    int idx = 1;
    for (URIContent uri : uris) {
        File in = new File(uri.getURI());
        if (!in.canRead()) {
            throw new Exception("Cannot read file to export: " + in.getAbsolutePath());
        }

        String outfilename = insertIndex(m_filename.getStringValue(), obj.getSpec().getFileExtensions().get(0),
                idx++);
        File out = new File(outfilename);

        if (out.exists() && !out.canWrite()) {
            throw new Exception("Cannot write to file: " + out.getAbsolutePath());
        } else if (!out.getParentFile().canWrite()) {
            throw new Exception(
                    "Cannot write to containing directoy: " + out.getParentFile().getAbsolutePath());
        }

        FileUtils.copyFile(in, out);
    }
    return null;
}

From source file:com.uzhnu.reedmuller.api.JsonFileCache.java

public synchronized JSONObject get(String key) {
    File cacheFile = getCacheFile(getCacheFilename(key));

    if (cacheFile.exists() && cacheFile.isFile() && cacheFile.canRead()) {
        try {/* www.ja va 2 s. c  om*/
            FileInputStream fis = new FileInputStream(cacheFile);
            JSONObject jo = new JSONObject(readAll(fis));
            fis.close();
            return jo;
        } catch (FileNotFoundException e) {
            return null;
        } catch (JSONException e) {
            return null;
        } catch (IOException e) {
            return null;
        }
    }
    return null;
}

From source file:pt.lsts.neptus.util.bathymetry.TidCachedData.java

@Override
public void loadFile(File f) throws Exception {
    cachedData = new TreeSet<>();
    if (f == null || !f.canRead()) {
        NeptusLog.pub().error(new Exception("Tides file is not valid: " + f));
        return;/*w  ww  .  j  a v  a  2 s  .c om*/
    }

    BufferedReader br = new BufferedReader(new FileReader(f));
    TidReader tidReader = new TidReader(br);

    Data data = tidReader.readData();

    while (data != null) {
        long unixTimeMillis = data.timeMillis;
        double height = data.height;
        Date d = new Date(unixTimeMillis);
        cachedData.add(new TidePeak(d, height));
        data = tidReader.readData();
    }

    name = tidReader.getHarbor();
    br.close();
}

From source file:com.thoughtworks.go.server.GoServer.java

private List<File> getAddonJarFiles() {
    File addonsPath = new File(systemEnvironment.get(SystemEnvironment.ADDONS_PATH));
    if (!addonsPath.exists() || !addonsPath.canRead()) {
        return new ArrayList<>();
    }/*from   w w  w . j a v a2 s . c o  m*/

    return new ArrayList<>(FileUtils.listFiles(addonsPath, new SuffixFileFilter("jar", IOCase.INSENSITIVE),
            FalseFileFilter.INSTANCE));
}

From source file:es.emergya.tools.ExtensionClassLoader.java

@Override
public InputStream getResourceAsStream(String name) {
    InputStream resourceIS;//from w w  w . j a v a 2 s  .  c  o  m
    File jar = JarSearcher.getJar(ExtensionClassLoader.class);
    if (jar != null) {
        if (jar.getPath().startsWith("file:")) {
            ExtensionClassLoader.LOG.debug("Eliminando 'file:' de " + jar.getAbsolutePath());
            jar = new File(jar.getPath().substring(5));
        } else
            ExtensionClassLoader.LOG.debug("La ruta no comienza por 'file:' " + jar.getPath());
        File dir = jar.getParentFile();
        if (dir == null) {
            ExtensionClassLoader.LOG.debug("Entrando por super.getResouceAsStream(" + name + ")");
            return super.getResourceAsStream(name);
        }
        String path = dir.getPath();
        ExtensionClassLoader.LOG.debug("Directorio con el jar: " + dir.getPath());

        if (!name.startsWith("/"))
            path = path + "/";
        path += name;

        String osDependentPath = path.replaceAll("/", java.util.regex.Matcher.quoteReplacement(File.separator));
        ExtensionClassLoader.LOG.debug("Se busca el fichero " + osDependentPath);
        if (System.getProperty("os.name").indexOf("Windows") >= 0)
            osDependentPath = osDependentPath.replaceAll("%20", " ");
        File resource = new File(osDependentPath);

        if (resource.exists() && resource.canRead())
            try {
                resourceIS = new FileInputStream(osDependentPath);
            } catch (FileNotFoundException e) {
                ExtensionClassLoader.LOG.error("Couln't open requested (" + name + "resource");
                resourceIS = null;
            }
        else
            resourceIS = super.getResourceAsStream(name);
    } else
        resourceIS = super.getResourceAsStream(name);

    return resourceIS;
}

From source file:se.inera.axel.shs.broker.messagestore.internal.FileMessageStoreServiceIT.java

@Test(groups = "largeTests")
@DirtiesContext/*from www .  java2  s .co  m*/
public void saveAndDeleteMessage() {

    ShsMessageEntry entry = make(a(ShsMessageEntryMaker.ShsMessageEntry));
    se.inera.axel.shs.mime.ShsMessage shsMessage = make(a(ShsMessage));
    File f = new File(baseDir, entry.getId());

    entry = messageStore.save(entry, shsMessage);
    assertTrue(f.exists());
    assertTrue(f.canRead());

    messageStore.delete(entry);
    Assert.assertFalse(f.exists());

}

From source file:klapersuite.prismanalysis.linux.PrismRunner.java

public Process launch(File pmFile, File pctlFile, int resultDecimalDigitsPrecision) throws IOException {
    if (!pmFile.canRead())
        throw new IOException("pmFile is not accessible (" + pmFile.toString() + ")");
    if (!pctlFile.canRead())
        throw new IOException("pctlFile is not accessible (" + pctlFile.toString() + ")");
    Process prismProcess = launchPrism(new String[] { "-cuddmaxmem",
            String.valueOf(Math.max(IN_KB_512MB, new SystemMemory().availableRam(IN_KB_512MB))), "-maxiters",
            "200000", "-e", "1e-" + resultDecimalDigitsPrecision, pmFile.toString(), pctlFile.toString() });
    if (prismProcess == null)
        throw new IOException("Prism solver doesn't run properly");
    if (exitValueAfterTermination(prismProcess) != 0)
        throw new IOException("Prism solver doesn't work properly");
    return prismProcess;
}

From source file:com.ikon.util.cl.FilesystemClassLoader.java

/**
 * Get main class name//w w w .  jav a2s.  c o  m
 */
@Override
public String getMainClassName() throws IOException {
    log.debug("getMainClassName()");
    File mf = new File(file, "META-INF/MANIFEST.MF");
    FileInputStream fis = null;

    try {
        if (mf.exists() && mf.canRead()) {
            fis = new FileInputStream(mf);
            Manifest manif = new Manifest(fis);
            Attributes attr = manif.getMainAttributes();
            return attr != null ? attr.getValue(Attributes.Name.MAIN_CLASS) : null;
        }
    } finally {
        IOUtils.closeQuietly(fis);
    }

    return null;
}

From source file:com.linkedin.restli.tools.idlgen.TestRestLiResourceModelExporter.java

private String readFile(String fileName) throws IOException {
    File file = new File(fileName);
    assertTrue(file.exists() && file.canRead(), "Cannot find file: " + fileName);
    BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(file)));

    StringBuilder sb = new StringBuilder();
    String line = null;//from  w w  w  .  j a va  2s  .  com
    try {
        while ((line = reader.readLine()) != null) {
            sb.append(line);
        }
    } finally {
        reader.close();
    }
    return sb.toString();
}

From source file:de.vandermeer.skb.commons.utils.Json2Collections.java

/**
 * Reads the given JSON file and logs errors.
 * @param file JSON file// w ww.  j  ava 2 s  . c  o m
 * @return a map with information from the JSON file or null in case of errors 
 */
public Object read(File file) {
    if (file != null && file.canRead()) {
        try {
            return this.read(new Scanner(file));
        } catch (Exception ignore) {
        }
    }
    return null;
}