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Alfresco CMIS

Chapter 2. Basic CMIS Operations

In this chapter, we will dig into the CMIS API and test it by calling a CMIS server directly via HTTP, and it will respond in XML or JSON depending on whether we are using the AtomPub binding or the Browser binding. We will try out most of the common operations that would be normal to perform against a CMS system such as follows:

Authenticating and connecting to the server
Fetching repository information including repository ID and root-folder URL
Listing the content of a folder
Listing the content types that are available
Reading content metadata and downloading content
Creating, updating, and deleting folders and files

This chapter is particularly useful for those who cannot, for some reason, use a third-party library that abstracts the inner workings of the CMIS interface. So if you cannot use any of the libraries from the Apache Chemistry project, this chapter will be helpful as it will tell you how to interact with any CMIS-compliant server using only HTTP...

Creating, updating, and deleting content

After you have listed content (that is, CMIS objects) in the repository, you would probably want to be able to create, update, and delete content. This is handled via the CMIS object services.

The following table gives you an overview of the available object service calls that are related to creating the content of different types:

Service call name	Short description	Long description
`createDocument`	Creates a document	Creates a document object of the specified type (given by the `cmis:objectTypeId` property) in the (optionally) specified location.
`createDocumentFromSource`	Copies a document	Creates a document object as a copy of the given source document in the (optionally) specified location.
`createFolder`	Creates a folder	Creates a folder object of the specified type in the specified location.
`createRelationship`	Creates a relationship	Creates a relationship object of the specified type.
`createPolicy`	Creates a policy	Creates...

What you will learn

Add, update, delete, and search for content with increasing efficiency using HTTP and XML/JSON, OpenCMIS , JavaScript, and Groovy

Feed content directly into a JavaScript widget from a CMIS call JSON response, so you can see how content management servers can be accessed directly via AJAX calls from a web application

Integrate Drupal with a content management server via CMIS, so Drupal does not have to store documents and images

Integrate multiple content management systems in a standard way via an enterprise service bus and a CMIS connector

Handle advanced concepts such as versioning, permissions, and relationships between content items

Talk to the Alfresco Cloud service via CMIS, so you can make content available outside the company firewall

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Johnny Gee Jun 06, 2014

I have read and reviewed many Alfresco books over the years, but I must say that Martin Bergljung has done a terrific job of making a technical book easy to read. "Alfresco CMIS" is simple and easy to understand. He minimize the amount of technical jargon and if there were some concepts he felt that the reader may not know, he explained them clearly and effortlessly.He does a great job giving the history of CMIS and he does even a better job of describing the various CMIS operations in detail and in plain English. He even talks about how to install CMIS server so that the reader has opportunity to play with CMIS sample code he provides. My only wish is that the author would have talked about the CMIS operations in the context of business problem. The best technical books I have read are the ones that relate technical information to business case.I would recommend this book to anyone who is looking to write a custom app using CMIS against Alfresco repository.

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AHASH Jul 19, 2014

This book is an excellent resource for anyone wanting to know more about CMIS (Content Management Interoperability Services). It starts out with a good introduction to the CMIS standard including the service, basic and advanced CMIS operations, and the object model. Examples include version management, security, search, and relationship management. The book illustrates various integration patterns via different uses cases. It then goes on to discuss the CMIS implementation in Alfresco (open source content management system).The book discusses various methods for accessing a CMIS server including use of a Java client as well as using using scripting languages such as Groovy. The examples and code snippets provided are very valuable for someone who wants to try out the various examples on their own. A thorough explanation of the code included in the book is also provided.The book concludes with an explanation of how to integrate other systems/applications using CMIS. The examples include integration with Drupal.CMIS is an open standard for integrating content management systems and is gaining popularity. This book provides excellent coverage on the topic with a focus on Alfresco.

Sam Jun 01, 2014

As an Enterprise Architect, I work with ECM systems, Documentum, Alfresco, Sharepoint etc. Alfresco is incredibly powerful and has such a low cost comparing to other options, it has enabled me to build full fledged application suite with very short periods of time. Many organizations still have Documentum, but Alfresco can take to many other ECM systems using CMIS protocol. The resulting federated ECM system is a comprehensive solution to document management, collaboration and integration.If you are using Alfresco and need CMIS integration, stop reading the review and just buy it !I have bought >10 Alfresco books that this is among the two books that I would recommend.Enterprise ArchitectSam Wu, SAMSSOFT

Jorge Jun 03, 2017

This is a great book if you need to code an integration with a CMIS server such as Alfresco. Specifically, if you don't want to use a third-party API wrapper, this book will give you the details on how to implement it yourself. Or, if you want to understand what's going on under the hood of your third-party API wrapper.One area where this book could be improved is explaining error cases. For example, if I upload a file to CMIS, what errors should I expect? What if the file already exists? What if my filename is invalid? What other things can go wrong? Without this information, I am left to try all the cases myself to see what happens.

Romin K. Irani May 14, 2014

The number of solutions being built on top of Content Management Systems is plenty and across implementations, you wish that there was a common API that you could access all the CMS. CMIS is the common API via which you can access any Content Management System that supports this standard.The book starts off with an overview of CMIS and how it came about. The next set of chapters goes into the CMIS Standard, especially the different operations via which you can do create, update, delete and query for documents. These two chapters setup a solid foundation since they allowed you to understand what is happening behind the scenes in terms of the REST Calls and the data formats being exchanged in the request / response.I preferred this approach rather than jumping into a high level API that does not allow the developer to understand some of the details behind the calls. The next chapter jumps into specific support for CMIS via Alfresco.Once this is covered, you get to pick the languages via which you want to access the CMIS API. One chapter covers the Java API in case you are talking to the CMS via a Server side infrastructure or are planning to create your own service layer on top of it. In case you are looking for accessing CMIS via the Web interface, a chapter on invoking the CMIS Interface via JavaScript is also covered.The final couple of chapters delve deeper into integration scenarios with the Drupal Web Content Management (WCM) and Mule ESB Integration.Overall the book is a solid guide to the CMIS Standard via Alfresco. In case you are planning on integrating with any CMIS capable repository, keep this book handy.

Alfresco CMIS: Learn how to build applications that talk to content management servers in a standardized way using this superb course on getting the best from Alfresco CMIS. This is a highly practical, step-by-step guide.

What do you get with Print?

Alfresco CMIS

Chapter 2. Basic CMIS Operations

Setting up a CMIS server

Installing your own CMIS server

Setting up a tool to make HTTP requests

Authenticating with the repository

Getting repository information

Listing the children of the root folder

Optional parameters when listing the children of a folder

Listing available types and subtypes

Getting metadata and content

Getting metadata and content with the AtomPub binding

Creating, updating, and deleting content

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