@Override
public SecretKey getIssuerSecretKey(URI issuerParamsUid) throws CredentialManagerException {
if (issuerParamsUid == null) {
throw new CredentialManagerException("Issuer parameters UID is null");
}
ObjectInputStream objectInput = null;
ByteArrayInputStream byteArrayInputStream = null;
try {
byte[] tokenBytes = this.storage.getIssuerSecretKey(issuerParamsUid);
if (tokenBytes == null) {
throw new IssuerSecretKeyNotInStorageException(
"Issuer secret key with UID: \"" + issuerParamsUid + "\" is not in storage");
}
byteArrayInputStream = new ByteArrayInputStream(tokenBytes);
objectInput = new ObjectInputStream(byteArrayInputStream);
SecretKey issuerSecretKey = (SecretKey) objectInput.readObject();
return issuerSecretKey;
} catch (IssuerSecretKeyNotInStorageException ex) {
throw ex;
} catch (Exception ex) {
throw new CredentialManagerException(ex);
} finally {
// Close the streams.
StorageUtil.closeIgnoringException(objectInput);
StorageUtil.closeIgnoringException(byteArrayInputStream);
}
}
@Override
public void addValueAndOverwrite(URI uri, byte[] key) throws IOException {
try {
if (StorageUtil.HasUri(this.file, uri)) {
StorageUtil.deleteData(this.file, uri);
}
this.addValue(uri, key);
} catch (Exception e) {
throw new IOException(e);
}
}
@Override
public void storeIssuerSecretKey(URI issuerParamsUid, SecretKey issuerSecretKey)
throws CredentialManagerException {
ByteArrayOutputStream byteArrayOutputStream = null;
ObjectOutputStream objectOutput = null;
try {
byteArrayOutputStream = new ByteArrayOutputStream();
objectOutput = new ObjectOutputStream(byteArrayOutputStream);
objectOutput.writeObject(issuerSecretKey);
byte[] bytes = byteArrayOutputStream.toByteArray();
this.storage.addIssuerSecret(issuerParamsUid, bytes);
} catch (Exception ex) {
throw new CredentialManagerException(ex);
} finally {
// Close the streams.
StorageUtil.closeIgnoringException(objectOutput);
StorageUtil.closeIgnoringException(byteArrayOutputStream);
}
}
@Override
public URI[] listUris() throws Exception {
FileInputStream fis = new FileInputStream(this.file);
long fileSize = this.file.length();
if (fileSize < 4) {
fis.close();
return new URI[0];
}
DataInputStream in = new DataInputStream(new BufferedInputStream(fis));
List<URI> ls = new ArrayList<URI>();
try {
while (true) {
int n = in.readInt();
byte[] uriBytes = new byte[n];
URI storedUri = StorageUtil.readUriBytes(in, n, uriBytes);
ls.add(storedUri);
int sizeOfValue = in.readInt();
StorageUtil.skip(in, sizeOfValue);
}
} catch (EOFException ex) {
return ls.toArray(new URI[0]);
}
}
@Override
public void addValue(URI uri, byte[] key) throws IOException {
StorageUtil.appendData(this.file, uri, key);
}
@Override
public byte[] getValue(URI uri) throws Exception {
return StorageUtil.getData(this.file, uri);
}