Example usage for org.apache.commons.vfs2 FileObject isReadable

Introduction

In this page you can find the example usage for org.apache.commons.vfs2 FileObject isReadable.

Prototype

boolean isReadable() throws FileSystemException;

Source Link

Document

Determines if this file can be read.

Usage

From source file:ShowProperties.java

public static void main(String[] args) throws FileSystemException {
    if (args.length == 0) {
        System.err.println("Please pass the name of a file as parameter.");
        System.err.println("e.g. java org.apache.commons.vfs2.example.ShowProperties LICENSE.txt");
        return;//from w w  w .ja  v  a2 s  . co m
    }
    for (int i = 0; i < args.length; i++) {
        try {
            FileSystemManager mgr = VFS.getManager();
            System.out.println();
            System.out.println("Parsing: " + args[i]);
            FileObject file = mgr.resolveFile(args[i]);
            System.out.println("URL: " + file.getURL());
            System.out.println("getName(): " + file.getName());
            System.out.println("BaseName: " + file.getName().getBaseName());
            System.out.println("Extension: " + file.getName().getExtension());
            System.out.println("Path: " + file.getName().getPath());
            System.out.println("Scheme: " + file.getName().getScheme());
            System.out.println("URI: " + file.getName().getURI());
            System.out.println("Root URI: " + file.getName().getRootURI());
            System.out.println("Parent: " + file.getName().getParent());
            System.out.println("Type: " + file.getType());
            System.out.println("Exists: " + file.exists());
            System.out.println("Readable: " + file.isReadable());
            System.out.println("Writeable: " + file.isWriteable());
            System.out.println("Root path: " + file.getFileSystem().getRoot().getName().getPath());
            if (file.exists()) {
                if (file.getType().equals(FileType.FILE)) {
                    System.out.println("Size: " + file.getContent().getSize() + " bytes");
                } else if (file.getType().equals(FileType.FOLDER) && file.isReadable()) {
                    FileObject[] children = file.getChildren();
                    System.out.println("Directory with " + children.length + " files");
                    for (int iterChildren = 0; iterChildren < children.length; iterChildren++) {
                        System.out.println("#" + iterChildren + ": " + children[iterChildren].getName());
                        if (iterChildren > 5) {
                            break;
                        }
                    }
                }
                System.out.println("Last modified: "
                        + DateFormat.getInstance().format(new Date(file.getContent().getLastModifiedTime())));
            } else {
                System.out.println("The file does not exist");
            }
            file.close();
        } catch (FileSystemException ex) {
            ex.printStackTrace();
        }
    }
}

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From source file:fulcrum.xml.ParserTest.java

private static InputStream getInputStream(String location) {
    InputStream is = null;//from  w  ww  .  java 2s  .c o  m
    try {
        FileSystemManager fsManager = VFS.getManager();
        FileObject fileObj = fsManager.resolveFile(location);
        if (fileObj != null && fileObj.exists() && fileObj.isReadable()) {
            FileContent content = fileObj.getContent();
            is = content.getInputStream();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return is;
}

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From source file:fulcrum.xml.soap12.Soap12XOMTest.java

@Test
public void testXOM() {
    Document doc = null;//  w  w  w.  jav  a  2 s  .  co  m
    Builder parser = null;
    try {
        FileSystemManager fsManager = VFS.getManager();
        FileObject fileObj = fsManager.resolveFile(SIMPLE);
        if (fileObj != null && fileObj.exists() && fileObj.isReadable()) {

            FileContent content = fileObj.getContent();
            InputStream is = content.getInputStream();
            LOGGER.info("STARTING PARSE:");
            parser = new Builder();
            doc = parser.build(is);
            LOGGER.info("ENDING PARSE");
            System.out.println(doc.toXML());
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        parser = null;
    }
}

---

From source file:mondrian.spi.impl.ApacheVfs2VirtualFileHandler.java

public InputStream readVirtualFile(String url) throws FileSystemException {
    // Treat catalogUrl as an Apache VFS (Virtual File System) URL.
    // VFS handles all of the usual protocols (http:, file:)
    // and then some.
    FileSystemManager fsManager = VFS.getManager();
    if (fsManager == null) {
        throw Util.newError("Cannot get virtual file system manager");
    }//from  w w  w. j  ava  2 s  .  co  m

    File userDir = new File("").getAbsoluteFile();
    FileObject file = fsManager.resolveFile(userDir, url);
    FileContent fileContent = null;
    try {
        if (!file.isReadable()) {
            throw Util.newError("Virtual file is not readable: " + url);
        }

        fileContent = file.getContent();
    } finally {
        file.close();
    }

    if (fileContent == null) {
        throw Util.newError("Cannot get virtual file content: " + url);
    }

    return fileContent.getInputStream();
}

---

From source file:com.stratuscom.harvester.CommonsVFSTest.java

void checkPresentAndReadable(FileObject root, String name) throws FileSystemException {
    FileObject fo = root.resolveFile(name);
    assertNotNull(fo);//  w ww . j a  va2  s .c o m
    assertTrue("File unreadable:" + fo.toString() + " type=" + fo.getType(), fo.isReadable());
}

---

From source file:fulcrum.xml.Parser.java

/**
 * Only provides parsing functions to the "fulcrum.xml" package.
 * /*from w w w. j  a  v a2  s .co m*/
 * @see Document
 * 
 * @param fileLocation
 * @param document
 * @throws ParseException
 */
protected void parse(String fileLocation, Document document) throws ParseException {
    FileObject fileObj = null;
    try {
        fileObj = fsManager.resolveFile(fileLocation);

        if (fileObj != null && fileObj.exists() && fileObj.isReadable()) {
            FileContent content = fileObj.getContent();
            InputStream is = content.getInputStream();
            int size = is.available();
            LOGGER.debug("Total File Size: " + size + " bytes");
            byte[] buffer = new byte[size];
            is.read(buffer, 0, size);
            LOGGER.debug("Start parsing");
            parse(buffer, document);
            LOGGER.debug("Finished paring");
            buffer = null;
            content.close();
            fileObj.close();
        }
    } catch (Exception e) {
        throw new ParseException(e);
    }
}

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From source file:com.stratuscom.harvester.CommonsVFSTest.java

/**
Make sure we can use the jar:syntax to get to the 'start.properties' file
inside the constructed reggie module jar.
 *///from   w  w w . j a v a 2 s . c om
@Test
public void testFileInReggieModuleJar() throws Exception {
    FileObject reggieJar = fileSystemManager.resolveFile(new File("target/reggie-module"), "reggie-module.jar");
    assertTrue("Bad file:" + reggieJar.toString(), reggieJar.toString().endsWith("reggie-module.jar"));
    FileObject reggieJarFS = fileSystemManager.createFileSystem(Strings.JAR, reggieJar);

    FileObject startProperties = reggieJarFS.resolveFile("start.properties");
    assertNotNull(startProperties);
    assertTrue(
            "Properties file unreadable:" + startProperties.toString() + " type=" + startProperties.getType(),
            startProperties.isReadable());
}

---

From source file:com.stratuscom.harvester.CommonsVFSTest.java

/**
If we create a virtual file system based on a jar file, we should be
able to add other jar files by adding junctions to the root, with the name
of the file we're adding./*from  ww  w .j  ava2s .  c o m*/
        
        
Unfortunately, this theory doesn't pan out...
org.apache.commons.vfs.FileSystemException: Attempting to create a nested junction at "null/otherStart.properties".  Nested junctions are not supported.
at org.apache.commons.vfs.impl.VirtualFileSystem.addJunction(VirtualFileSystem.java:111)
        
 */
@Test
@Ignore /*Didin't work, see above */
public void testFileSystemJunctions() throws Exception {
    FileObject reggieJar = fileSystemManager.resolveFile(new File("../../build/test/files"),
            "reggie-module.jar");
    assertTrue("Bad file:" + reggieJar.toString(), reggieJar.toString().endsWith("reggie-module.jar"));
    FileObject reggieJarFS = fileSystemManager.createFileSystem(reggieJar);

    FileObject virtRoot = fileSystemManager.createVirtualFileSystem((String) null);
    virtRoot.getFileSystem().addJunction("/", reggieJarFS);
    checkPresentAndReadable(virtRoot, "start.properties");
    FileObject startProperties = virtRoot.resolveFile("start.properties");
    assertNotNull(startProperties);
    assertTrue(
            "Properties file unreadable:" + startProperties.toString() + " type=" + startProperties.getType(),
            startProperties.isReadable());

    /* Now try to add in a junction to a jar file */
    virtRoot.getFileSystem().addJunction("otherStart.properties", startProperties);
    checkPresentAndReadable(virtRoot, "otherStart.properties");
}

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From source file:com.stratuscom.harvester.classloading.VFSClassLoaderTest.java

/**
Just to make sure that we have the base setup correct, ensure that we
can read the 'start.properties' file inside the reggie-module jar.
@throws Exception/*  ww w  .j  a v a 2  s.c o m*/
 */
@Test
public void testCanReadStartDotProperties() throws Exception {
    FileObject startProperties = reggieModuleRoot.resolveFile("start.properties");
    assertNotNull(startProperties);
    assertTrue(
            "Properties file unreadable:" + startProperties.toString() + " type=" + startProperties.getType(),
            startProperties.isReadable());
}

---

From source file:com.stratuscom.harvester.classloading.VirtualFileSystemClassLoader.java

/**
 * Find the file object for a resource by searching through all the
 * classpath entries that have been set up.
 *
 * @param name//w  ww  .j  a  va 2s  .c o m
 * @return
 */
public FileObject findResourceFileObject(String name) {
    for (ClasspathEntry cpEntry : classpathEntries) {
        try {
            FileObject fo = cpEntry.resolveFile(name);
            if (fo != null && fo.isReadable()) {
                return fo;
            }
        } catch (FileSystemException ex) {
            Logger.getLogger(VirtualFileSystemClassLoader.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
    return null;
}

---

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