Migrate Custom Portal Applications to SAP NetWeaver 73

SAP NetWeaver How-To Guide

How To... Migrate Custom Portal Applications to SAP NetWeaver 7.3

Applicable Releases:

SAP NetWeaver 7.30 SP03 and above

SAP NetWeaver 7.31 SP02 and above

IT Practice / Topic Area:

SAP NetWeaver Portal

Version 1.0

February 2012

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Document History Document Version Description

1.00 First official release of this guide

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Table of Contents 1. Business Scenario ..........................................................................................................1

2. Acronyms.........................................................................................................................1

3. Prerequisites....................................................................................................................1

4. Step-by-Step Procedure ..................................................................................................2 4.1 Sample Application ...................................................................................................2 4.2 Importing Application Source Code to NWDS ............................................................3 4.3 Updating JAR Locations for Build Time .....................................................................5

4.3.1 Finding Public APIs JARs .............................................................................5 4.3.2 Finding Relevant JARs for Imported Classes ................................................6 4.3.3 Adding JARs .................................................................................................6

4.4 Handling Deprecated APIs ........................................................................................7 4.5 Adjusting Code to Support JDK 1.6 ...........................................................................8 4.6 Setting Runtime Dependencies in Portalapp.xml .......................................................8 4.7 Building and Deploying Application ......................................................................... 10 4.8 Testing Application at Runtime ................................................................................ 11


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1. Business Scenario This guide helps you to migrate your custom portal applications from SAP NetWeaver 7.0x to 7.3 by presenting the required steps, potential obstacles and recommended solutions. Migrating Portal Applications provides information about enabling your existing applications to run in the new environment. The procedures described in the guide enable you to modify your applications in the future.

Note This guide does not focus on the development infrastructure aspects. If you are using NWDI, see Migrating Tracks Content from SAP NetWeaver 7.0 to a Higher Version.

2. Acronyms x AS Application Server x API Application Program Interface x DC Development Component x GPAL - Generic Portal Application Layer x EAR Enterprise Archive x JAR Java Archive x JDK- Java Development Kit x NWDS SAP NetWeaver Developer Studio x NWDI SAP NetWeaver Development Infrastructure x PAR - Portal Archive x SCA- Software Component Archive

3. Prerequisites

x SAP NetWeaver 7.3 is installed (used for deployment and runtime tests) x NWDS 7.3 is installed x JDK 1.6 is installed x Source code of a working application is available


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4. Step-by-Step Procedure This section describes all the steps necessary for migrating custom portal applications.

4.1 Sample Application To illustrate these steps, we use a sample application com.myCompany.MigrationTest, developed and deployed in a SAP NetWeaver 7.0x portal. The application looks as follows:

When the application is loaded, the title displays the full name of the current user: Hello . Entering the user ID and clicking OK displays the full UME ID and navigation tree of the user with active links.


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4.2 Importing Application Source Code to NWDS To import the source code of the application to NWDS 7.3, perform the following steps:

1. To open the Enterprise Portal perspective in NWDS, choose Window Open Perspective Other, and then Enterprise Portal.

2. To import the project, choose File Import 3. Select Existing Projects into Workspace and choose Next.


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4. Select the folder in which your project is located, and choose Finish.

The imported project should appear in the Package Explorer.


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4.3 Updating JAR Locations for Build Time In SAP NetWeaver 7.3, the public APIs are packaged in JAR files, that are now stored in different locations. To ensure that your application has access to the public APIs it uses, you need to update the locations of the JAR files in your project. In the application code, you can see the import errors that result from the change of location of the public JARs.

To resolve these errors, perform the steps described in the following sections.

4.3.1 Finding Public APIs JARs 1. In the NWDS installation folder, open the plugins subfolder, and check for all the plugins

(JARs) that start with com.sap.tc.ap.* Each of these files represents an SCA and contains the public API JARs. The name pattern of a JAR file is com.sap.tc.ap._.jar. There may be more than one version for each SCA, of which you should use the latest.

2. Open a JAR and set the display option to Flat Folder View. The JARs are located under SCA>\DCs\sap.com\tc\\\api\_comp\gen\default\public\api\lib\java.

3. In your file system, create a folder in which you want to store the public APIs. 4. In this folder, create a subfolder with the name _. 5. Copy all the required JARs into this subfolder.

For example: 1. Open com.sap.tc.ap.epruntime_7.3.0.111019142240.jar. 2. Locate com.sap.portal.navigation.api_service.jar under EP-

RUNTIME\DCs\sap.com\tc\ep\navigation\api\_comp\gen\default\public\api\lib\java, and copy it to the ep_navigation subfolder. Repeat these steps for all required JARs.


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4.3.2 Finding Relevant JARs for Imported Classes 1. In the Javadocs section at SAP Help Portal, choose the relevant version of SAP NetWeaver

7.3, and then Enterprise Portal. 2. Find an imported class, for example, AbstractPortalComponent, and open the link. 3. Under Access Rights see the location of the JAR: in EP-BASIS-API under ..../epbc/prt/api/...

4.3.3 Adding JARs 1. In NWDS, right-click the project and choose Properties. 2. In the Properties dialog, choose Add External JARs. 3. Select tc~epbc~prt~api.jar in the epbc_prt folder, and choose OK.

4. Verify that the class references are now resolved, since all

com.sapportals.portal.component* APIs are included in the same JAR.


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5. Repeat the above steps to resolve com.sap.portal.navigation* by adding com.sap.portal.navigation.api_service.jar, and com.sapportals.htmlb* by adding com.sapportals.htmlb.jar, located under FRAMEWORK-EXT\DCs\sap.com\com.sapportals.htmlb\_comp\gen\default\public\default\lib\java.

4.4 Handling Deprecated APIs Deprecated means that, although an API is still available and supported, it will be phased out in the subsequent releases, therefore you should avoid using it, and use the suggested alternative API. We recommend using the new 7.3 reference DC in the new projects.

1. Repeat the steps described in the previous section for com.sapportals.portal.prt.service.usermanagement.IUserManagementService. In the Javadoc for the IUserManagementService interface, you can see that it is deprecated and replaced by the IUserManagementEngine interface, located in the com.sap.ip.portal.service.ume package.

2. In the imports statement, replace com.sapportals.portal.prt.service.usermanagement.IUserManagementService with com.sap.ip.portal.service.ume.IUserManagementEngine.

3. Add the JAR com.sap.portal.usermanagement.jar from EP-BASIS, as described above. 4. In your code, make the necessary changes where this interface is used.

For example:

1. Replace all IUsermanagementService with IUserManagementEngine. There is still an error with com.sapportals.portal.security.usermanagement.IRoleFactory.

2. Check the Javadocs at http://help.sap.com/javadocs/NW73/SPS05/CE/se/com.sap.se/index.html for IRoleFactory under com.sap.security.api. You need to replace com.sapportals.portal.security.usermanagement.IRoleFactory with com.sap.security.api.IRoleFactory and import com.sap.security.api.IRoleFactory instead of com.sapportals.portal.security.usermanagement.IRole.


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3. Set a reference to the relevant tc~je~usermanagement~api.jar under ENGFACADE. 4. To resolve IRole, add the imports com.sap.security.api.IRole statement. 5. The strikethrough on UserManagementException indicates that it is deprecated.

In the imports statement, replace com.sapportals.portal.security.usermanagement.UserManagementException with com.sap.security.api.UMException. Replace UserManagementException with UMException from com.sap.security.api.

6. Use the NWDS quick fix to replace the unidentified method role.getUMEID() with getUniqueID().

4.5 Adjusting Code to Support JDK 1.6 SAP NetWeaver 7.3 uses JDK 1.6, which means that all custom code should comply with the JDK 1.6 standard. In the imports list, there are errors for the com.sapportals.htmlb.enum* objects, because enum is a reserved word in JDK1.6. It should be replaced with com.sapportals.htmlb.enums*, and all instances of enum in the code should be replaced with another string, for example, enum1.

4.6 Setting Runtime Dependencies in Portalapp.xml Make sure that the application descriptor, portalapp.xml, located under dist PORTAL-INF, complies with the standard defined in Deployment Descriptor (portalapp.xml). In our example, portalapp.xml looks as follows:


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4.7 Building and Deploying Application After resolving all errors, build your application and create a deployable object (EAR).

Note If you are using NWDI, the process is different. For more information, see Migrating Tracks Content from SAP NetWeaver 7.0 to a Higher Version. 1. Right-click the project and select Export. 2. Select SAP NetWeaver Portal EAR File and choose Next.

3. Select the project from the list and choose Next. 4. Define the Name and Location properties and choose Next. 5. Verify that the EAR file is created in your project.

Deploy the application and verify there are no deployment errors. 1. To configure the 7.3 NetWeaver Portal Server for deployment, go to Window Preferences SAP AS JAVA.

2. To open the Deploy View, go to Window Show View Deploy View. 3. Add the EAR file you have created, and deploy it. 4. Verify that deployment completed successfully (with no errors or warnings)

For more information about deployment of applications, see Application Lifecycle and Deployment.


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4.8 Testing Application at Runtime Following the successful deployment, test your application at runtime and verify that its behavior is the same as in NetWeaver 7.0.

1. Log on to the portal as a Content Administrator, and navigate to Content AdministrationPortal Content Management.

2. Choose Portal Applications to open the GPAL repository.

3. Right-click the deployed application, and choose Preview.

Verify that the application functions as expected.

Note If the application requires parameters, it will not run properly in preview. You need to create a wrapping iView by copying the application into the PCD, and set the required parameters. For more information, see Working with GPAL Repositories.

www.sdn.sap.com/irj/sdn/howtoguides

1. Business Scenario2. Acronyms3. Prerequisites4. Step-by-Step Procedure4.1 Sample Application4.2 Importing Application Source Code to NWDS4.3 Updating JAR Locations for Build Time4.3.1 Finding Public APIs JARs4.3.2 Finding Relevant JARs for Imported Classes4.3.3 Adding JARs

4.4 Handling Deprecated APIs4.5 Adjusting Code to Support JDK 1.64.6 Setting Runtime Dependencies in Portalapp.xml4.7 Building and Deploying Application4.8 Testing Application at Runtime

Documents

Migrate Custom Portal Applications to SAP NetWeaver 73