Example usage for java.nio.file.attribute UserDefinedFileAttributeView write

Introduction

In this page you can find the example usage for java.nio.file.attribute UserDefinedFileAttributeView write.

Prototype

int write(String name, ByteBuffer src) throws IOException;

Source Link

Document

Writes the value of a user-defined attribute from a buffer.

Usage

From source file:Test.java

public static void main(String[] args) throws Exception {
    Path path = Paths.get("C:/home/docs/users.txt");

    UserDefinedFileAttributeView view = Files.getFileAttributeView(path, UserDefinedFileAttributeView.class);
    view.write("publishable", Charset.defaultCharset().encode("true"));
    System.out.println("Publishable set");

    String name = "publishable";
    ByteBuffer buffer = ByteBuffer.allocate(view.size(name));
    view.read(name, buffer);/*w w w. j a  va2 s.  c  om*/
    buffer.flip();
    String value = Charset.defaultCharset().decode(buffer).toString();
    System.out.println(value);

}

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From source file:org.italiangrid.storm.webdav.fs.attrs.DefaultExtendedFileAttributesHelper.java

@Override
public void setExtendedFileAttribute(File f, String attributeName, String attributeValue) throws IOException {

    Assert.notNull(f);/*ww w . jav  a2s. co m*/
    Assert.hasText(attributeName);

    UserDefinedFileAttributeView faView = Files.getFileAttributeView(f.toPath(),
            UserDefinedFileAttributeView.class);

    if (faView == null) {
        throw new IOException("UserDefinedFileAttributeView not supported on file " + f.getAbsolutePath());
    }

    faView.write(attributeName, StandardCharsets.UTF_8.encode(attributeValue));
}

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From source file:org.jclouds.kinetic.strategy.internal.KineticStorageStrategyImpl.java

private void writeCommonMetadataAttr(UserDefinedFileAttributeView view, Blob blob) throws IOException {
    ContentMetadata metadata = blob.getMetadata().getContentMetadata();
    writeStringAttributeIfPresent(view, XATTR_CACHE_CONTROL, metadata.getCacheControl());
    writeStringAttributeIfPresent(view, XATTR_CONTENT_DISPOSITION, metadata.getContentDisposition());
    writeStringAttributeIfPresent(view, XATTR_CONTENT_ENCODING, metadata.getContentEncoding());
    writeStringAttributeIfPresent(view, XATTR_CONTENT_LANGUAGE, metadata.getContentLanguage());
    writeStringAttributeIfPresent(view, XATTR_CONTENT_TYPE, metadata.getContentType());
    Date expires = metadata.getExpires();
    if (expires != null) {
        ByteBuffer buf = ByteBuffer.allocate(Longs.BYTES).putLong(expires.getTime());
        buf.flip();/*from ww w. j  a  v  a2s  . c o m*/
        view.write(XATTR_EXPIRES, buf);
    }
    for (Map.Entry<String, String> entry : blob.getMetadata().getUserMetadata().entrySet()) {
        writeStringAttributeIfPresent(view, XATTR_USER_METADATA_PREFIX + entry.getKey(), entry.getValue());
    }
}

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From source file:org.jclouds.kinetic.strategy.internal.KineticStorageStrategyImpl.java

private String putDirectoryBlob(final String containerName, final Blob blob) throws IOException {
    String blobKey = blob.getMetadata().getName();
    ContentMetadata metadata = blob.getMetadata().getContentMetadata();
    Long contentLength = metadata.getContentLength();
    if (contentLength != null && contentLength != 0) {
        throw new IllegalArgumentException("Directory blob cannot have content: " + blobKey);
    }//w ww . j a va 2 s .  co m
    File outputFile = getFileForBlobKey(containerName, blobKey);
    Path outputPath = outputFile.toPath();
    if (!outputFile.isDirectory() && !outputFile.mkdirs()) {
        throw new IOException("Unable to mkdir: " + outputPath);
    }

    UserDefinedFileAttributeView view = getUserDefinedFileAttributeView(outputPath);
    if (view != null) {
        try {
            view.write(XATTR_CONTENT_MD5, ByteBuffer.wrap(DIRECTORY_MD5));
            writeCommonMetadataAttr(view, blob);
        } catch (IOException e) {
            logger.debug("xattrs not supported on %s", outputPath);
        }
    } else {
        logger.warn("xattr not supported on %s", blobKey);
    }

    return base16().lowerCase().encode(DIRECTORY_MD5);
}

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From source file:org.jclouds.kinetic.strategy.internal.KineticStorageStrategyImpl.java

/** Write an kinetic attribute, if its value is non-null. */
private static void writeStringAttributeIfPresent(UserDefinedFileAttributeView view, String name, String value)
        throws IOException {
    if (value != null) {
        view.write(name, ByteBuffer.wrap(value.getBytes(StandardCharsets.UTF_8)));
    }//ww w  .j  av a 2  s.c  om
}

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From source file:org.ms123.common.git.FileObject.java

public void setString(String key, String value) throws IOException {
    System.out.println("setString:" + key + "=" + value);
    Path path = getPath();//from  w  w  w .j  a v a  2s. c o m
    UserDefinedFileAttributeView view = Files.getFileAttributeView(path, UserDefinedFileAttributeView.class);
    view.write(key, Charset.defaultCharset().encode(value));
}

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