JReport Designer でIBM Cloud Object Storage Data を連携

JReport Designer でIBM Cloud Object Storage data に連携するチャートとレポートを作成します。

CData JDBC Driver for IBM Cloud Object Storage を使用すると、IBM Cloud Object Storage がリレーショナルデータベースであるかのようにダッシュボードやレポートからライブデータにアクセスでき、使い慣れたSQL クエリを使用してIBM Cloud Object Storage data をクエリできます。ここでは、JDBC データソースとしてIBM Cloud Object Storage data に連携し、JReport Designer でIBM Cloud Object Storage data のレポートを作成する方法を説明します。

IBM Cloud Object Storage Data に接続

  1. Edit C:\JReport\Designer\bin\setenv.bat to add the location of the JAR file to the ADDCLASSPATH variable:
    ...
    set ADDCLASSPATH=%JAVAHOME%\lib\tools.jar;C:\Program Files\CData\CData JDBC Driver for IBM Cloud Object Storage 2016\lib\cdata.jdbc.ibmcloudobjectstorage.jar;
    ...
    
  2. Create a new data source by clicking File New Data Source.
  3. In the resulting dialog, create a name for the data source (CData JDBC Driver for IBM Cloud Object Storage), select JDBC, and click OK.
  4. In the Get JDBC Connection Information dialog you will configure your connection to the JDBC driver:
    • Driver:Be sure that the Driver box is checked and fill in the name of the class for the driver: cdata.jdbc.ibmcloudobjectstorage.IBMCloudObjectStorageDriver
    • URL:Enter the JDBC URL.This starts with jdbc:ibmcloudobjectstorage: and is followed by a semicolon-separated list of connection properties.

      Register a New Instance of Cloud Object Storage

      If you do not already have Cloud Object Storage in your IBM Cloud account, follow the procedure below to install an instance of SQL Query in your account:

      1. Log in to your IBM Cloud account.
      2. Navigate to the page, choose a name for your instance and click Create. You will be redirected to the instance of Cloud Object Storage you just created.

      Connecting using OAuth Authentication

      There are certain connection properties you need to set before you can connect. You can obtain these as follows:

      API Key

      To connect with IBM Cloud Object Storage, you need an API Key. You can obtain this as follows:

      1. Log in to your IBM Cloud account.
      2. Navigate to the Platform API Keys page.
      3. On the middle-right corner click "Create an IBM Cloud API Key" to create a new API Key.
      4. In the pop-up window, specify the API Key name and click "Create". Note the API Key as you can never access it again from the dashboard.

      Cloud Object Storage CRN

      If you have multiple accounts, you will need to specify the CloudObjectStorageCRN explicitly. To find the appropriate value, you can:

      • Query the Services view. This will list your IBM Cloud Object Storage instances along with the CRN for each.
      • Locate the CRN directly in IBM Cloud. To do so, navigate to your IBM Cloud Dashboard. In the Resource List, Under Storage, select your Cloud Object Storage resource to get its CRN.

      Connecting to Data

      You can now set the following to connect to data:

      • InitiateOAuth: Set this to GETANDREFRESH. You can use InitiateOAuth to avoid repeating the OAuth exchange and manually setting the OAuthAccessToken.
      • ApiKey: Set this to your API key which was noted during setup.
      • CloudObjectStorageCRN (Optional): Set this to the cloud object storage CRN you want to work with. While the connector attempts to retrieve this automatically, specifying this explicitly is recommended if you have more than Cloud Object Storage account.

      When you connect, the connector completes the OAuth process.

      1. Extracts the access token and authenticates requests.
      2. Saves OAuth values in OAuthSettingsLocation to be persisted across connections.

      ビルトイン接続文字列デザイナー

      For assistance in constructing the JDBC URL, use the connection string designer built into the IBM Cloud Object Storage JDBC Driver.Either double-click the JAR file or execute the jar file from the command-line.

      java -jar cdata.jdbc.ibmcloudobjectstorage.jar

      Fill in the connection properties and copy the connection string to the clipboard.

      When you configure the JDBC URL, you may also want to set the Max Rows connection property.This will limit the number of rows returned, which is especially helpful for improving performance when designing reports and visualizations.

      Below is a typical JDBC URL:

      jdbc:ibmcloudobjectstorage:ApiKey=myApiKey;CloudObjectStorageCRN=MyInstanceCRN;Region=myRegion;OAuthClientId=MyOAuthClientId;OAuthClientSecret=myOAuthClientSecret;
    • User:The username to authenticate with; typically left blank.
    • Password:The password to authenticate with; typically left blank.
  5. In the Add Table dialog, select the tables you wish to include in your report (or in future reports using this data source) and click Add.

    Click Done once the dialog has completed loading the tables.

  6. In the Catalog Browser, you can create the queries that you will use to populate your reports.You can do this now, or after you create your report.In either case, expand () the data source (CData JDBC Driver for IBM Cloud Object Storage), right-click on Queries, and select Add Query.
  7. In the Add Table/View/Query dialog, expand () the JDBC URL and Tables and select the table(s) you wish to use in the query and click OK.
  8. In the Query Editor dialog, you can select the columns you wish to include or simply click the SQL button and manually input your own query.For example:
    SELECT Key, Etag FROM Objects WHERE Bucket = 'someBucket'
    

    With the query built, click OK to close the Query Editor dialog.At this point you are ready to add IBM Cloud Object Storage data to a new or existing report.

    NOTE: Now that the query is built, you can create a Business View based on the query.With a Business View, you can create Web reports or library components based on the query.For more information on this, refer to the JReport tutorials.

レポートにIBM Cloud Object Storage Data を追加

You are now ready to create a report with IBM Cloud Object Storage data.

  1. Create a new report (File New Page Report) or open the Chart Wizard for an existing report.
  2. Select the Query (or create a new one; see above).
  3. Assign a Category and Value for the chart from the columns in your Query and click Finish.
  4. Click the View tab for your report to see the chart.
 
 
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