Example usage for org.apache.commons.vfs2 FileSystemManager resolveFile

Introduction

In this page you can find the example usage for org.apache.commons.vfs2 FileSystemManager resolveFile.

Prototype

FileObject resolveFile(URL url) throws FileSystemException;

Source Link

Document

Resolves a URL into a FileObject .

Usage

From source file:tain.kr.test.vfs.v01.TestVfs2FilehandleService.java

@Test
public void testAccessFile() throws Exception {

    FileSystemManager manager = VFS.getManager();

    FileObject baseDir = manager.resolveFile(this.absoluteFilePath);
    FileObject file = manager.resolveFile(baseDir, "testfolder/file1.txt");

    //   //from  w w  w.j a  v a2s .co m
    file.delete(Selectors.SELECT_FILES);
    assertFalse(file.exists());

    //  
    file.createFile();
    assertTrue(file.exists());

    FileContent fileContent = file.getContent();
    assertEquals(0, fileContent.getSize());

    //  
    String string = "test.";
    OutputStream os = fileContent.getOutputStream();

    try {
        os.write(string.getBytes());
        os.flush();
    } finally {
        if (os != null) {
            try {
                os.close();
            } catch (Exception ignore) {
                // no-op
            }
        }
    }
    assertNotSame(0, fileContent.getSize());

    //  
    StringBuffer sb = new StringBuffer();
    FileObject writtenFile = manager.resolveFile(baseDir, "testfolder/file1.txt");
    FileContent writtenContents = writtenFile.getContent();
    InputStream is = writtenContents.getInputStream();

    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));

        String line = "";
        while ((line = reader.readLine()) != null) {
            sb.append(line);
        }
    } finally {
        if (is != null) {
            try {
                is.close();
            } catch (Exception ignore) {
                // no-op
            }
        }
    }

    //  
    assertEquals(sb.toString(), string);
}

From source file:tain.kr.test.vfs.v01.TestVfs2FilehandleService.java

@Test
public void testCaching() throws Exception {

    String path = TestVfs2FilehandleService.class.getResource("").getPath();
    if (flag)/*www .j a va2 s .co m*/
        System.out.printf("[%s]\n", path);

    String testFolder = path + "/testfolder";
    FileSystemManager manager = VFS.getManager();

    FileObject scratchFolder = manager.resolveFile(testFolder);

    // testfolder    
    scratchFolder.delete(Selectors.EXCLUDE_SELF);

    FileObject file = manager.resolveFile(path + "/testfolder/dummy.txt");
    file.createFile();

    //  Manager 
    DefaultFileSystemManager fs = new DefaultFileSystemManager();
    fs.setFilesCache(manager.getFilesCache());

    // zip, jar, tgz, tar, tbz2, file
    if (!fs.hasProvider("file")) {
        fs.addProvider("file", new DefaultLocalFileProvider());
    }

    fs.setCacheStrategy(CacheStrategy.ON_RESOLVE);
    fs.init();

    //   
    FileObject foBase2 = fs.resolveFile(testFolder);
    if (flag)
        System.out.printf("## scratchFolder.getName().getPath() : %s\n", scratchFolder.getName().getPath());

    FileObject cachedFolder = foBase2.resolveFile(scratchFolder.getName().getPath());

    //   
    FileObject[] fos = cachedFolder.getChildren();
    assertFalse(contains(fos, "file1.txt"));

    // 
    scratchFolder.resolveFile("file1.txt").createFile();

    //  
    // BUT cachedFolder    
    fos = cachedFolder.getChildren();
    assertFalse(contains(fos, "file1.txt"));

    // 
    cachedFolder.refresh();
    //  
    fos = cachedFolder.getChildren();
    assertTrue(contains(fos, "file1.txt"));
}