jdeps | Great JDK 8 Command-line Static Dependency Checker tool

While exploring new technical stuff, I came across wonderful JDK 8 command line tool. This is called jdeps (Java class dependency analyzer). It is useful for quickly identifying static dependencies of libraries. The jdeps command-line tool is easy to use and quickly identifies static dependencies on a provided JAR and its package or class contents.The level of detail shown is configurable and some ways of configuring this command's output are shown next.

The following screen snapshot (cropped image, doesn't include full output) demonstrates basic usage of the jdeps command executed for tools.jar (java library jar).

Jdeps Output

To print class level dependency use -v option.

Jdeps Class Level Output

There are a few more useful options available for use with jdeps that are not covered in this post, but these can be seen by running jdeps -help.

Resolved | GIT branch switch issue

While using GIT, encountered a special scenario. I was working on one branch. There were no changes local. Then I decided to switch to different branch.

I have faced below error.

===========================================================================

$ git checkout New_Temp_Branch

error : The following untracked working tree files would be overwritten by checkout:

      <list of files here>

Please move or remove them before you can switch branches.

Aborting

===========================================================================

Solution : Use below set of commands.

git add *

git stash

git pull

This will track all files, remove all of your local changes to those files, and then get the files from the server.

Endeca Terminology

While studying about Endeca ,I have seen interesting terms related to Endeca. Here is the list of terms along with their meaning.

Navigation State The navigation state is the set of all dimension values selected in the current query context,the navigation state record set consists of the records selected by the navigation state.

Descriptor Dimensions Descriptor dimensions contain the dimension values (or descriptors) that were used to query for the current record set. Integrated dimensions represent a consolidation of those dimensions that contain either descriptors or refinement values for the current record set.

Complete Dimension Complete dimensions represent a consolidation of all dimensions that have at least one of the following:

a descriptor, a standard refinement, or an implicit refinement.

Snippeting The snippeting feature (also referred to as keyword in context or KWIC) provides the ability to return an excerpt from a record—called a snippet—to an application user who performs a record search query.

Wildcard search Wildcard search allows users to match query terms to fragments of words in indexed text.

Pivoting The activity of adding or removing dimension values to or from the navigation state is known as pivoting.

Positional Indexing To enable faster phrase search performance and faster relevance ranking with the Phrase module,your project builds index data out of word positions.This is called positional indexing.

Resolved | Endeca export site failure

Export site failed with below exception.
==========================================================================
Can't load log handler "com.endeca.soleng.eac.toolkit.logging.RelativePathFileHandler"
java.io.IOException: Couldn't get lock for /srv/endeca/apps/Store/logs/Store.%u.%g.log
java.io.IOException: Couldn't get lock for /srv/endeca/apps/Store/logs/Store.%u.%g.log
        at java.util.logging.FileHandler.openFiles(FileHandler.java:389)
        at java.util.logging.FileHandler.<init>(FileHandler.java:254)
        at com.endeca.soleng.eac.toolkit.logging.RelativePathFileHandler.<init>(RelativePathFileHandler.java:93)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at java.lang.Class.newInstance(Class.java:374)
        at java.util.logging.LogManager$4.run(LogManager.java:690)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.util.logging.LogManager.loadLoggerHandlers(LogManager.java:683)
        at java.util.logging.LogManager.initializeGlobalHandlers(LogManager.java:1255)
        at java.util.logging.LogManager.access$1300(LogManager.java:148)
        at java.util.logging.LogManager$RootLogger.getHandlers(LogManager.java:1338)
        at java.util.logging.Logger.log(Logger.java:609)
        at java.util.logging.Logger.doLog(Logger.java:631)
        at java.util.logging.Logger.log(Logger.java:654)
        at java.util.logging.Logger.fine(Logger.java:1204)
        at com.endeca.soleng.eac.toolkit.Controller.parseArgs(Controller.java:1036)
        at com.endeca.soleng.eac.toolkit.Controller.main(Controller.java:136)
[02.17.17 11:17:18] INFO: Checking definition from AppConfig.xml against existing EAC provisioning.
[02.17.17 11:17:28] SEVERE: Caught an exception while checking provisioning.

Caused by com.endeca.soleng.eac.toolkit.exception.EacCommunicationException
com.endeca.soleng.eac.toolkit.application.Application isDefined - Caught exception while querying for defined application list.
Caused by com.endeca.eac.client.EACFault
sun.reflect.NativeConstructorAccessorImpl newInstance0 - null

==========================================================================
Solution :
         1)      Stop the EAC (Endeca HTTP Service)
         2)      Rename the directory  ENDECA_CONF/state to state-backup
         3)      Create an empty state directory
         4)      Start the Endeca HTTP Service again 

Explore the Endeca Configuration Repository using WebDAV Client

The Endeca Workbench application is storing all its configuration files inside a configuration repository. It is called Endeca configuration repository (ECR). Endeca Configuration Repository is Apache Sling, a REST web framework built on top of the Java Content Repository Apache JackRabbit.

Workbench interacts with ECR using scripts in the control folder (inside deployed application) to upload content to that configuration repository, such as set_media, set_editors_config, import_site and set_templates.

One interesting thing about this repository is you can connect with ECR using any WebDAV client. Once connected you can explore the content of the repository.

Here I am going to demonstrate ECR (for Discover application) exploration using CyberDuck client on windows.

1. Download and install CyberDuck.

2. Open CyberDuck and enter details for connection.

Server : Workbench server
Port : Workbench Port
Username : Workbench username
Password : Workbench password
Path :/ifcr/sites/<Enter name of endeca application>

Connect Endeca Content Repository

3. Explore the repository.

Explore Endeca Content Repository

4. Disconnect from repository using Disconnect button.

Endeca | Display Deployment Template Version

Sometimes you need to find out version of the deployment template (EAC Development Toolkit)

To show the version of deployment template.

1. Navigate to control directory of your application.

2. Invoke runcommand with --version flag.

Deployment Template Version

Endeca | Check application component status

Sometimes you need to check provisioned component status for a Endeca application. You can check application component status using one of the three ways.

1. Endeca Workbench :  Use EAC Admin console to check component status. Check Auto Refresh check box on right to refresh status automatically.

Component Status

2. Deployment Template : Run below command from control directory of deployed application.

          runcommand.bat --print-status

Component Status Deployment Template

3. The eaccmd Utility : Run below eaccmd command to check component status.

          eaccmd status --app <application name> --comp <component id>

eaccmd component status