Oracle® Fusion Middleware Developer's Guide for Oracle IRM Server 11g Release 1 (11.1.1) E12326-03 |
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Home > Developer's Guide for Oracl... > Code Samples for Java Appli... > Peeking a Sealed File and C...
The following code demonstrates how to extract the metadata from sealed content using the validatedPeek
method. Once peeked, the file metadata, which includes the Classification
details, can be examined. The sample code prints out the human readable classification details (the labels) that were sealed into the content.
The validatedPeek
method attempts to check the public header against its declared signature. If the public header metadata has been altered post-sealing, this method will throw an exception.
Example 7-3
import static oracle.irm.engine.content.sealing.SealingOperationsInstance.validatedPeek; import java.io.FileInputStream; import java.io.IOException; import java.net.Authenticator; import java.net.PasswordAuthentication; import oracle.irm.engine.content.sealing.ContentDescription; import oracle.irm.engine.core.classification.Classification; import oracle.irm.engine.core.general.Label; public class ValidatedPeekFile { public static void main(String[] args) throws IOException { // The user name and password are provided on the command line. In a production // system these details should be provided in a more secure manner, such // as prompting from the console, or reading from a secure source. final String username = args[0]; final String password = args[1]; // Configure an authenticator to provide the credentials for any network access Authenticator.setDefault(new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(username, password.toCharArray()); } }); // The name of the file to peek FileInputStream stream = new FileInputStream(args[2]); // Perform the peek, providing a stream to the sealed file ContentDescription contentDescription = validatedPeek(stream); // Close the file stream stream.close(); // Extract the classification details from the content Classification classification = contentDescription.getClassification(); // Show all the labels sealed into content for (Label label : classification.getLabels()) { System.out.println(label.getLocale().getDisplayName() + " : " + label.getName()); } } }