Chapter 6 explores the add, modify, delete, and rename operations for updating data in a directory, along with how to use groups. Authentication is touched on briefly in Chapter 6 because most directories are configured not to allow anonymous clients to update any data. Chapter 7, however, covers the topic thoroughly. Down and Dirty Chapter 8 discusses the special considerations for LDAP client code that is intended to run as an applet in a browser.
Chapter 10 demonstrates how to encapsulate LDAP functionality in a JavaBean and provides full source for a directory tree browser JavaBean and a table JavaBean for listing the results of a search operation. In Chapter 11 we take a detailed look at how an application can store configuration and preferences in a directory. In a directory, data is stored as a tree.
Chapter 12 illustrates how directory data can model relationships other than the physical tree relationships. A JavaBean is developed to extract reporting relationships from LDAP data and present the results as an organizational chart. Another JavaBean presents the contents of a directory entry. The chapter concludes by hooking up into simple applications the graphical JavaBeans that have been developed up to that point in the book. Chapter 13 develops a complete server-side application: a corporate online "phone book.
In Chapter 14 we summarize and discuss all the options and constraints that may be selected by an application for searching and other operations. Advanced topics, such as schema management, LDAP controls, and the asynchronous operation methods, are presented in Chapter If You're in a Hurry In general, the book contains a logical progression of information and examples, each chapter building on previous ones.
If you are familiar with the use of directories and with LDAP concepts, you may choose to skip over the first two chapters. Similarly, if you do not need to know how to write a Java servlet that uses LDAP, you may choose to skip over Chapter The SDK and examples are also provided as precompiled class and JAR files so that you can run any program directly, without compiling or copying to a local hard disk.
The full text of the book is also included, to allow you to view the contents in a browser and to search for any word.
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View all copies of this ISBN edition:. Review : From centralized corporate phone books to the localized storage of user preferences, Internet directories have many useful features. How the Book Is Organized Introduction to LDAP Chapter 1 presents the role of directories in software systems today and describes how applications can benefit from using them, as well as presenting cases in which directories are not as good a fit as relational databases.
In corporations anonymous bind is often disabled for security reasons. So, in order to connect you need to instantiate LDAP class using newInstance method, with the following variants:. A non-parameter method connects to the default address, which is localhost It proves to be useful for various short proof-of-concept scripts. The second method takes the url of the directory as a second parameter.
If anonymous bind is not allowed or not sufficient there is an equivalent method, taking additionally user credentials:. Once the connection is established, you can perform any other actions. One tip is to always provide a baseDN as a part of the connection url e. By doing so you define the default base, upon which searches will be performed, which in turn allows you to use convenient one parameter search methods, instead of specifying a search base and scope each time.
As a companion there is read method, that reads directory entry, specified by its DN:. This method returns either a boolean value or a given entry, accordingly. But there might be cases when you do not want to search by DN, but by another attribute which is also unique.
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A good example of this is a userId attribute, which is usually unique within a company. This method assumes uniqueness of an object. If more than one result is returned from the search, you will get an exception. Searches can be also performed with more compact and more Groovy method eachEntry taking a closure as the last parameter:.
As you see, when you have the entry object, you can reference all its properties using native map syntax e. It doesn't, because you haven't specified anything else, but the basic query.
ISBN 13: 9780201657586
So it assumed you want to search in baseDN hopefully specified, when connecting to the directory. They define additional parameters such as base upon which a search is performed and search scope, being one of the three possible constants:. When you know how to search and read from the directory, it's time to do some modifications.
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Let's start from adding a new entry:. You need to remember not to put DN in the attributes map, as it is not an attribute but rather the unique identifier of an entry. Removing a directory entry is even more straightforward:. Modifying a directory entry is not very Groovyish for the time being. Adding single attributes is still relatively easy:.
Performing batch modifications could be more readable using Builder-like syntax.. The current way to do this is the following:. As a project it resides in Apache Directory sandbox, so when you have a chance, contribute and help Groovy LDAP to become an official subproject of the Apache Directory. Over a million developers have joined DZone. Let's be friends:.
Spring LDAP – LDAP Programming in Java Made Simple
DZone 's Guide to. Free Resource. Like 5. Join the DZone community and get the full member experience. Join For Free. In order to do that, I had to turn the snippet into the Groovy recurrent function and avoid hardcoding a group's name in favor of taking it as a command line parameter.
Here is the entire script: import org. LDAP import org.