Establishing a Connection
Creating a JDBC Data Source
You can create a JDBC data source to connect from your Java application. Creating a JDBC data source based on the CData JDBC Driver for XML consists of three basic steps:
- Add the driver JAR file to the classpath. The JAR file is located in the lib subfolder of the installation directory. Note that the .lic file must be located in the same folder as the JAR file.
- Provide the driver class. For example:
cdata.jdbc.xml.XMLDriver
- Provide the JDBC URL. For example:
jdbc:xml:DataModel=Relational;URI=C:\people.xml or jdbc:cdata:xml:DataModel=Relational;URI=C:\people.xml
The second format above can be used whenever there is a conflict in your application between drivers using the same URL format to ensure you are using the CData driver. The URL must start with either "jdbc:xml:" or "jdbc:cdata:xml:" and can include any of the connection properties in name-value pairs separated with semicolons.
The CData JDBC Driver for XML allows connecting to local and remote XML resources. Set the URI property to the XML resource location, in addition to any other properties necessary to connect to your data source.
Connecting to Local Files
Set the ConnectionType to Local. Local files support SELECT\INSERT\UPDATE\DELETE.
Set the URI to a folder containing XML files: C:\folder1.
Connecting to Cloud-Hosted XML Files
While the driver is capable of pulling data from XML files hosted on a variety of cloud data stores, INSERT, UPDATE, and DELETE are not supported outside of local files in this driver.If you need INSERT/UPDATE/DELETE cloud files, you can download the corresponding CData driver for that cloud host (supported via stored procedures), make changes with the local file's corresponding driver, then upload the file using the cloud source's stored procedures.
As an example, if you wanted to update a file stored on SharePoint, you could use the CData SharePoint driver's DownloadDocument procedure to download the XML file, update the local XML file with the CData XML driver, then use the SharePoint driver's UploadDocument procedure to upload the changed file to SharePoint.
A unique prefix at the beginning of the URI connection property is used to identify the cloud data store being targed by the driver and the remainder of the path is a relative path to the desired folder (one table per file) or single file (a single table).
Amazon S3
Set the following to identify your XML resources stored on Amazon S3:
- ConnectionType: Set the ConnectionType to Amazon S3.
- URI: Set this to an XML document in a bucket: s3://bucket1/folder1.
See Connecting to Amazon S3 for more information regarding how to connect and authenticate to XML files hosted on Amazon S3.
Azure Blob Storage
Set the following to identify your XML resources stored on Azure Blob Storage:
- ConnectionType: Set this to Azure Blob Storage.
- URI: Set this to the name of your container and the name of the blob. For example: azureblob://mycontainer/myblob.
See Connecting to Azure Blob Storage for more information regarding how to connect and authenticate to XML files hosted on Amazon Blob Storage.
Azure Data Lake Storage
Set the following to identify your XML resources stored on Azure Data Lake Storage:
- ConnectionType: Set this to Azure Data Lake Storage Gen1, Azure Data Lake Storage Gen2, or Azure Data Lake Storage Gen2 SSL.
- URI: Set this to the name of the file system, the name of the folder which contains your XML files, and the name of an XML file. For example:
- Gen 1: adl://myfilesystem/folder1
- Gen 2: abfs://myfilesystem/folder1
- Gen 2 SSL: abfss://myfilesystem/folder1
See Connecting to Azure Data Lake Storage for more information regarding how to connect and authenticate to XML files hosted on Azure Data Lake Storage.
Azure File Storage
Set the following properties to connect:
- ConnectionType: Set this to Azure Files.
- URI: Set this the name of your azure file share and the name of the resource. For example: azurefile://fileShare/remotePath.
- AzureStorageAccount (Required): Set this to the account associated with the Azure file.
You can authenticate either an Azure access key or an Azure shared access signature. Set one of the following:
- AzureAccessKey: Set this to the access key associated with the Azure file.
- AzureSharedAccessSignature: Set this to the shared access signature associated with the Azure file.
Box
Set the following to identify your XML resources stored on Box:
- ConnectionType: Set this to Box.
- URI: Set this the name of the file system, the name of the folder which contains your XML files, and the name of an XML file. For example: box://folder1.
See Connecting to Box for more information regarding how to connect and authenticate to XML files hosted on Box.
Dropbox
Set the following to identify your XML resources stored on Dropbox:
- ConnectionType: Set this to Dropbox.
- URI: Set this to the path to a XML file. For example: dropbox://folder1.
See Connecting to Dropbox for more information regarding how to connect and authenticate to XML files hosted on Dropbox.
FTP
The driver supports both plaintext and SSL/TLS connections to FTP servers.
Set the following connection properties to connect:
- ConnectionType: Set this to either FTP or FTPS.
- URI: Set this to the address of the server followed by the path to the XML file. For example: ftp://localhost:990/folder1 or ftps://localhost:990/folder1.
- User: Set this to your username on the FTP(S) server you want to connect to.
- Password: Set this to your password on the FTP(S) server you want to connect to.
Google Cloud Storage
Set the following to identify your XML resources stored on Google Cloud Storage:
- ConnectionType: Set this to Google Cloud Storage.
- URI: Set this to the path to the name of the file system, the name of the folder which contains your XML files, and the name of a XML file. For example: gs://bucket/remotePath.
See Connecting to Google Cloud Storage for more information regarding how to connect and authenticate to XML files hosted on Google Cloud Storage.
Google Drive
Set the following to identify your XML resources stored on Google Drive:
- ConnectionType: Set this to Google Drive.
- URI: Set to the path to the name of the file system, the name of the folder which contains your XML files, and the name of an XML file. For example: gdrive://folder1.
See Connecting to Google Drive for more information regarding how to connect and authenticate to XML files hosted on Google Drive.
HDFS
Set the following to identify your XML resources stored on HDFS:
- ConnectionType: Set this to HDFS or HDFS Secure.
- URI: Set this to the path to a XML file. For example:
- HDFS: webhdfs://host:port/remotePath
- HDFS Secure: webhdfss://host:port/remotePath
There are two authentication methods available for connecting to HDFS data source, Anonymous Authentication and Negotiate (Kerberos) Authentication.
Anonymous Authentication
In some situations, you can connect to HDFS without any authentication connection properties. To do so, set the AuthScheme property to None (default).
Authenticate using Kerberos
When authentication credentials are required, you can use Kerberos for authentication. See Using Kerberos for details on how to authenticate with Kerberos.
HTTP Streams
Set the following to identify your XML resources stored on HTTP streams:
- ConnectionType: Set this to HTTP or HTTPS.
- URI: Set this to the URI of your HTTP(S) stream. For example:
- HTTP: http://remoteStream
- HTTPS: https://remoteStream
See Connecting to HTTP Streams for more information regarding how to connect and authenticate to XML files hosted on HTTP Streams.
IBM Cloud Object Storage
Set the following to identify your XML resources stored on IBM Cloud Object Storage:
- ConnectionType: Set this to IBM Object Storage Source.
- URI: Set this to the bucket and folder. For example: ibmobjectstorage://bucket1/remotePath.
See Connecting to IBM Object Storage for more information regarding how to connect and authenticate to XML files hosted on IBM Cloud Object Storage.
OneDrive
Set the following to identify your XML resources stored on OneDrive:
- ConnectionType: Set this to OneDrive.
- URI: Set this to the path to a XML file. For example: onedrive://remotePath.
See Connecting to OneDrive for more information regarding how to connect and authenticate to XML files hosted on OneDrive.
Oracle Cloud Storage
Set the following properties to authenticate with HMAC:
- ConnectionType: Set the ConnectionType to Oracle Cloud Storage.
- URI: Set this to an XML document in a bucket: os://bucket/remotePath.
- AccessKey: Set this to an Oracle Cloud Access Key.
- SecretKey: Set this to an Oracle Cloud Secret Key.
- OracleNamespace: Set this to an Oracle cloud namespace.
- Region (optional): Set this to the hosting region for your S3-like Web Services.
SFTP
Set the following to identify your XML resources stored on SFTP:
- ConnectionType: Set this to SFTP.
- URI: Set this to the address of the server followed by the path to the folder to be used as the root folder. For example: sftp://server:port/remotePath.
See Connecting to SFTP for more information regarding how to connect and authenticate to XML files hosted on SFTP.
SharePoint Online
Set the following to identify your XML resources stored on SharePoint Online:
- ConnectionType: Set this to SharePoint REST or SharePoint SOAP.
- URI: Set this to a document library containing XML files. For example:
- SharePoint Online REST: sprest://remotePath
- SharePoint Online SOAP: sp://remotePath
See Connecting to SharePoint Online for more information regarding how to connect and authenticate to XML files hosted on SharePoint Online.
Connecting to HTTP XML Streams
Set the URI to the HTTP or HTTPS URL of the XML resource you want to access as a table. Set AuthScheme to use the following authentication types. The driver also supports OAuth authentication; see Using OAuth for more information.
- HTTP:To use HTTP Basic or Digest, set the User and Password and set the corresponding AuthScheme. Set CustomHeaders if you need access to the request headers. Set CustomUrlParams to modify the URL query string.
- Windows (NTLM): Set the Windows User and Password to connect and set AuthScheme to "NTLM".
- Kerberos and Kerberos Delegation: To authenticate with Kerberos, set the User and Password and set AuthScheme to NEGOTIATE. To use Kerberos Delegation, set AuthScheme to KERBEROSDELEGATION.
For example:
URI=http://www.host1.com/streamname1;AuthScheme=BASIC;User=admin;Password=admin
Securing XML Connections
By default, the driver attempts to negotiate SSL/TLS by checking the server's certificate against the system's trusted certificate store. To specify another certificate, see the SSLServerCert property for the available formats to do so.