Documentum REST Java Client Reference Implementation

This Java project contains a reference implementation of Documentum REST Services client written in Java code. The purpose of this project is to demonstrate one way to develop a hypermedia driven REST client to consume Documentum REST Services. It does NOT indicate that users could not develop a REST client using other technologies.

OpenText shares the source code of this project for the technology sharing. If users plan to migrate the sample code to their products, they are responsible to maintain this part of the code in their products and should agree with license polices of the referenced libraries used by this sample project.

Overview

This Documentum REST Services client is written with Java code. Underlying it leverages Spring RestTemplate to send the REST messages. It supports both XML and JSON representations. JAXB is used to bind XML object, and Jackson for JSON. Both http and https are supported. The Java client's supported features are listed in below tables.

API Spec	Description
Supported Servers	,
Supported Formats	JSON XML
Supported Authentications	Basic Basic plus client token cookie Basic plus client token cookie + CSRF
Call Mode	Synchronous Asynchronous

Service Spec	Description
Fundamental Services	Home document Product information Repositories Batch execution
Folder Services	Cabinet CRUD Folder CRUD Folder navigation Copy, move, link, unlink
Document / Sysobject Services	Document CRUD Checkout, cancel checkout, checkin Copy, move, link, unlink
Content Services	Import contents Update contents Export contents
Aspect Services	Attach aspects Detach aspects
Lightweight object Services	Shared parent/children navigation Materialization Dematerialization
Virtual document Services	List virtual document nodes
Query and search Services	DQL read-only query Full-text search Full-text search with facets Search template CRUD, execution Saved search CRUD, execution
User and group Services	User CRUD Group CRUD Add group members Remove group members User preference CRUD
Permission Services	ACL CRUD Set object permissions Enquire object permissions
Collaboration Services	List comments Add/reply comments Delete comments
Relation Services	Create relations List relations
Format Services	List formats
Network location Services	List network locations
Type services	List types List relation types List aspect types Get value assistance

CRUD - Create, Retrieve, Update, Delete

System requirements

1. Documentum REST Services 7.x is deployed in the development environment. The samples will be automatically loaded according the rest server version.
2. Java 7 or later is installed.
3. Maven 3 is required to build the project.

Build the project

1. Build the project with maven

  mvn clean install

2. There will be several files built in target directory:

• rest-api-client-sample-7.3.jar --> the sample client jar file
• lib -> the lib directory contains all other required third party library
• rest-api-client-sample-7.3-all-in-one.jar -> the sample client jar file, with all other third party classes embedded
• rest-api-client-sample-7.3-javadoc.jar -> javadoc of the sample client
• rest-api-client-sample-7.3-sources.jar -> source code of the sample client

Use the API

The class DCTMRestClient is the client stub class for the client application to call REST APIs. We can use DCTMRestClientBuilder to build a REST client instance.

// new a simple rest client instance
DCTMRestClient client = new DCTMRestClientBuilder().bind(DCTMRestClientBinding.JSON)
                .contextRoot("http://localhost:8080/dctm-rest")
                .repository("ACME")
                .credentials("username", "password")
                .build();
// get product info resource                
RestObject productInfo = client.getProductInfo();

Run samples

1. Run the project execute rest-api-client-sample-7.3.jar, with lib directory at the same place

java -jar rest-api-client-sample-7.3.jar

or execute rest-api-client-sample-7.3-all-in-one.jar directly

java -jar rest-api-client-sample-7.3-all-in-one.jar

2. After the program is started, please input the required information prompted by the sample client. After that, you will see a list of commands:

  Please input the number of the sample operation which need be executed:
    0 Exit
    1 Navigation
    2 Folder Create/Update/Delete
    ...

3. Then input the number of the sample you want to execute
4. Basic sample client
   

5. HTTPS connection without authenticating the rest server

6. HTTPS connection with authenticating the rest server (the trust store must contain the rest server)

Or provide the trust store path with -D parameter:

java -Djavax.net.ssl.trustStore=X:\git\documentum-rest-client-java\truststore.jks -Djavax.net.ssl.trustStorePassword=password -jar rest-api-client-sample-7.3.jar