Examples of org.apache.commons.vfs.FileObject.copyFrom()

org.apache.commons.vfs.FileObject.copyFrom()
Copies another file, and all its descendents, to this file.
If this file does not exist, it is created. Its parent folder is also created, if necessary. If this file does exist, it is deleted first.

This method is not transactional. If it fails and throws an exception, this file will potentially only be partially copied. @param srcFile The source file to copy. @param selector The selector to use to select which files to copy. @throws FileSystemException If this file is read-only, or if the source file does not exist,or on error copying the file.

  
  public File getResourceAsFile(String path) throws IOException {
    FileObject unpackedResource = _work.resolveFile(path);
    if (!unpackedResource.exists()) {
      FileObject sourceFile = _source.resolveFile(path);
      sourceFile.copyFrom(unpackedResource, new FileSelector() {


        public boolean includeFile(FileSelectInfo arg0) throws Exception {
          return true;
        }

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        if (dest.exists() && dest.getType() == FileType.FOLDER)
        {
            dest = dest.resolveFile(src.getName().getBaseName());
        }


        dest.copyFrom(src, Selectors.SELECT_ALL);
    }


    /**
     * Does a 'cat' command.
     */

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        final String basename = srcFile.getName().getBaseName();
        final File file = allocateFile(basename);


        // Copy from the source file
        final FileObject destFile = getContext().toFileObject(file);
        destFile.copyFrom(srcFile, selector);


        return file;
    }
}

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        assertSameContent(content, file);


        // Make sure we can copy the new file to another file on the same filesystem
        FileObject fileCopy = scratchFolder.resolveFile("file1copy.txt");
        assertTrue(!fileCopy.exists());
        fileCopy.copyFrom(file, Selectors.SELECT_SELF);


        assertSameContent(content, fileCopy);
    }


    /**

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        assertSameContent(content, file);


        // Make sure we can copy the new file to another file on the same filesystem
        FileObject fileCopy = scratchFolder.resolveFile("file1copy.txt");
        assertTrue(!fileCopy.exists());
        fileCopy.copyFrom(file, Selectors.SELECT_SELF);


        assertSameContent(content, fileCopy);
        
        // Make sure we can copy the same new file to the same target file on the same filesystem
        assertTrue(fileCopy.exists());

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        assertSameContent(content, fileCopy);
        
        // Make sure we can copy the same new file to the same target file on the same filesystem
        assertTrue(fileCopy.exists());
        fileCopy.copyFrom(file, Selectors.SELECT_SELF);


        assertSameContent(content, fileCopy);
    }


    /**

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        assertSameContent(content, file);


        // Make sure we can copy the new file to another file on the same filesystem
        FileObject fileCopy = scratchFolder.resolveFile("file1copy.txt");
        assertTrue(!fileCopy.exists());
        fileCopy.copyFrom(file, Selectors.SELECT_SELF);


        assertSameContent(content, fileCopy);


        // Delete the file.
        assertTrue(fileCopy.exists());

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        assertTrue(fileCopy.exists());
        assertTrue(fileCopy.delete());
        
        // Make sure we can copy the same new file to the same target file on the same filesystem
        assertTrue(!fileCopy.exists());
        fileCopy.copyFrom(file, Selectors.SELECT_SELF);


        assertSameContent(content, fileCopy);
    }


    /**

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        assertSameContent(contentAppend, file);


        // Make sure we can copy the new file to another file on the same filesystem
        FileObject fileCopy = scratchFolder.resolveFile("file1copy.txt");
        assertTrue(!fileCopy.exists());
        fileCopy.copyFrom(file, Selectors.SELECT_SELF);


        assertSameContent(contentAppend, fileCopy);


        // Delete the file.
        assertTrue(fileCopy.exists());

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        String fileName = destination.getName().getBaseName();
        destination = VFSUtils.resolveFile(cachef, fileName);
      }
      if (fileChanged(source, destination))
      {
        destination.copyFrom(source, new AllFileSelector());
        destination.getContent().setLastModifiedTime(source.getContent().getLastModifiedTime());
        System.out.println("file loaded " + source.getName() + " -> " + destination.getName());
      }
      return destination;
    }

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