Examples with EncryptionService org.apache.karaf.jaas.modules.EncryptionService used on opensource projects

Example 1 with EncryptionService

use of org.apache.karaf.jaas.modules.EncryptionService in project karaf by apache.

the class EncryptionSupport method getEncryption.

public Encryption getEncryption() {
    if (encryption == null) {
        Map<String, String> encOpts = new HashMap<>();
        for (String key : options.keySet()) {
            if (key.startsWith("encryption.")) {
                encOpts.put(key.substring("encryption.".length()), options.get(key).toString());
            }
        }
        encryptionPrefix = encOpts.remove("prefix");
        encryptionSuffix = encOpts.remove("suffix");
        boolean enabled = Boolean.parseBoolean(encOpts.remove("enabled"));
        if (!enabled) {
            if (debug) {
                logger.debug("Encryption is disabled.");
            }
        } else {
            String name = encOpts.remove("name");
            if (debug) {
                if (name != null && name.length() > 0) {
                    logger.debug("Encryption is enabled. Using service " + name + " with options " + encOpts);
                } else {
                    logger.debug("Encryption is enabled. Using options " + encOpts);
                }
            }
            // lookup the encryption service reference
            ServiceReference[] encryptionServiceReferences;
            try {
                encryptionServiceReferences = bundleContext.getServiceReferences(EncryptionService.class.getName(), name != null && name.length() > 0 ? "(name=" + name + ")" : null);
                int timeout = 0;
                while (encryptionServiceReferences == null || encryptionServiceReferences.length == 0) {
                    try {
                        Thread.sleep(500);
                    } catch (InterruptedException ie) {
                    // nothing to do
                    }
                    encryptionServiceReferences = bundleContext.getServiceReferences(EncryptionService.class.getName(), name != null && name.length() > 0 ? "(name=" + name + ")" : null);
                    timeout++;
                    if (timeout == 40)
                        break;
                }
            } catch (InvalidSyntaxException e) {
                throw new IllegalStateException("The encryption service filter is not well formed.", e);
            }
            if (encryptionServiceReferences == null || encryptionServiceReferences.length == 0) {
                if (name != null && name.length() > 0) {
                    throw new IllegalStateException("Encryption service " + name + " not found. Please check that the encryption service is correctly set up.");
                } else {
                    throw new IllegalStateException("No encryption service found. Please install the Karaf encryption feature and check that the encryption algorithm is supported.");
                }
            }
            Arrays.sort(encryptionServiceReferences);
            for (ServiceReference ref : encryptionServiceReferences) {
                try {
                    EncryptionService encryptionService = (EncryptionService) bundleContext.getService(ref);
                    if (encryptionService != null) {
                        try {
                            encryption = encryptionService.createEncryption(encOpts);
                            if (encryption != null) {
                                break;
                            }
                        } finally {
                            bundleContext.ungetService(ref);
                        }
                    }
                } catch (IllegalStateException e) {
                // continue
                }
            }
            if (encryption == null) {
                throw new IllegalStateException("No EncryptionService supporting the required options could be found.");
            }
        }
    }
    return encryption;
}