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Elasticsearch Index v7.6

Elasticsearch, which is based on Lucene, is a distributed document store. It is a highly effective way of indexing your information for correlation and quick query for analysis. In this blog, I will just walk you through the steps required to create an Index, search, and visualize.

What Is an Index?

In the context of ES an index is a collection of documents.

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Elastic Search @ 6.4.3

Elastic - 6.4.3

Working with Elastic is quite fun. You can simply use a query string URL or compose a Java program using the Java high-level/low-level client to consume and return the results.

In this blog, I am going to write a simple Java service that will expose a specific computation on top of an elastic search query. You can read more at the elastic.io

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Angular Application : Spring Data-ldap part-3

Having created the Spring rest service in the previous two blogs, it is time to look at the angular based application that will be interacting with those end points. I prefer using angular-cli to create and add features to my application, it is an easy and reliable way of adding stub code which is easier to manage and traverse.

ng : Angular CLI

A simple definition from the angular.io website 

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Spring Data-LDAP: Part 2

Now, since we have plugged in the LDAP information, it is time to stitch it with Spring Security. The easiest thing to do is:

@Configuration
@EnableWebSecurity(debug = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    private static final Logger logger = LoggerFactory.getLogger(WebSecurityConfig.class);


    @Autowired
    private LdapContextSource ldapContextSource;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.httpBasic().and().authorizeRequests().antMatchers("/users","/").permitAll()
                .anyRequest().authenticated().and().csrf().disable();
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.ldapAuthentication().contextSource(ldapContextSource)
                .userSearchBase("ou=users")
                .groupSearchBase("ou=groups")
                .groupSearchFilter("member={0}")
                .userDnPatterns("ou=users,dc=example,dc=com")
                .userSearchFilter("uid={0}");
    }
}