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Cmis And Apache Chemistry In Action Pdf

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When working with the repository, the first thing you need to do is grab an instance of cmislib. CmisClient , passing it the repository endpoint URL, username, and password. For example, in Alfresco 4.

CMIS and Apache Chemistry in Action

In my case, that repository is Alfresco 4. I use that example to show the same code working against Alfresco in the cloud and Alfresco on-premise. The main method simply calls doExample. The first thing you need is a session. I have a getCmisSession method that knows how to get one, and it looks like this:. As you can see, establishing a session is as simple as providing the username, password, binding, and service URL.

In CMIS 1. CMIS 1. The other parameter that gets set is the service URL. This is server-specific. For Alfresco 4.

The last thing the method does is return a session for a specific repository. CMIS servers can serve more than one repository.

The repository is a hierarchical tree of objects folders and documents similar to a local file system. The class is configured with a parent folder path and the name of a new folder that should be created in that parent folder. So the first thing we need to do is get a reference to the parent folder. My example getParentFolder method just grabs the folder by path, like this:. Now, given the parent folder and the name of a new folder, the createFolder method attempts to create the new folder to hold our files:.

Look at the Map that is getting set up to hold the properties of the folder. Just like when the folder was created, every file we upload to the repository will have its own set of metadata. It contains several types. Alfresco will automatically extract metadata like this when you add files to the repository. The getProperties method does this work.

Now we have everything we need to upload the file to the repository: a session, the target folder, and a map of properties for each object being uploaded. The first thing the createDocument method does is to make sure that we have a Map with the minimal set of metadata, which is the object type and the name. Similar to the folder creating logic earlier, it could be that the document already exists, so we use the same find-or-create pattern here.

When I run this locally using a folder that contains five pics I snapped in Berlin, the output looks like this:. As the name suggests, this repository is a reference CMIS server available from Apache Chemistry that runs entirely in-memory. And when I run the class, my photos get uploaded to a completely different repository implementation.

See comments for a link to webinar recording and slides. The HTML version of the tutorial is here. It has been updated for Maven and AMPs. That page has had over 37, unique visits since it was posted. It makes sense that it would be popular—creating a content model, exposing it to the user interface, and then performing CRUD functions against the repository through code are the first steps for most Alfresco development projects.

The second edition moves the Alfresco Explorer configuration to the Appendix and replaces it with steps for doing the same thing in Alfresco Share. Last Fall, just before the Developer Conference in New York City, Alfresco approached Metaversant with a small project—they needed a web site to share presentations from the DevCon sessions and other events. There are several generic slide-sharing sites out there—Alfresco and I have both used SlideShare for that sort of thing pretty extensively.

But Alfresco was looking for something they could have complete control over, plus they were looking to exercise their new Web Quick Start offering. Technology companies, of course, but also any company with a large sales force or even more modest extranet needs could benefit from a solution like this.

SlideShare is great when what you want to share is public. When presentations need to be securely shared, many companies use expansive portals to share sales collateral, marketing presentations, or company communications, but those often come with a very low signal-to-noise ratio. Even so, if you want to do slide-sharing on top of Alfresco, you can save even more time by starting with DeckShare.

I thought it might be cool to walk you through how we got from the Web Quick Start sample app to DeckShare as a way of getting you familiar with Web Quick Start and to help you understand how DeckShare works in case you want to use it on your project.

Alfresco is currently branding DeckShare to meet their needs so I have no idea if the About page will still be there when the site goes live, so I may or may not be repeating myself somewhat. DeckShare is a solution for quickly creating a self-hosted presentation-sharing site on top of Alfresco without having to write any code. DeckShare lets non-technical users manage and categorize presentations that are then consumed by end-users. In this solution, Content Managers are a different set of users than Content Consumers.

Obviously, it could be customized to do that. Using Share for content administration works really well. The home page includes a featured content carousel, a recently added document list, and a document category tree. The set of categories is almost completely arbitrary and can be managed by DeckShare administrators.

In fact, if you are running DeckShare on top of an existing Alfresco repository, you can specify the subset of categories you want to show in the category tree. When you click a specific category, the resulting page looks like this:.

The category page shows only the presentations for a specific category and features the same category tree browser that appears on the home page. The details page, shown below, shows high-level metadata about the presentation, supporting files that accompany the presentation, related presentations, and a flash-based document preview. The flash-based preview allows end-users to browse the presentation without downloading the entire file.

The site also has full-text search and that page is very similar to the category list page. The look-and-feel of the end-user web site can be completely customized to match client branding needs. And, both the metadata model and category hierarchy can be extended to support specific client requirements.

Alternatively, Content Managers have several other options for getting presentations into the repository, including FTP, drag-and-drop via Windows Explorer or Mac Finder, emailing content into the repository, drag-and-drop from within Microsoft Outlook or Lotus Notes, or saving directly from Microsoft Office as if the repository were a Microsoft SharePoint Server.

Regardless of how the files arrive, Alfresco automatically takes care of creating thumbnails and PDF renditions of the presentations. It is essentially a sample web application that sits on top of the Web Quick Start API Java , some presentation tier services, some repository tier services, and an extended content model. That means you can use all of the familiar building blocks present in the repository such as custom types and aspects to model your data, behaviors, and web scripts.

The presentation tier uses Alfresco Surf to lay out pages and to define regions on those pages. Regions get their content from presentation tier web scripts. For example, Metaversant recently worked with a client that chose Spring 3 and Apache Tiles for the front-end because that was their standard, but they used Web Quick Start for everything else from the API, back.

Web Quick Start is meant as a starter application. Here are the high-level steps we took to reshape the starter app into DeckShare. Web Quick Start has a simple content model that provides for articles, images, and user feedback. For DeckShare, we added two new aspects to our own model. One is used to associate a presentation with zero or more related presentations.

The other is used to associate a presentation with zero or more supporting files like source code downloads. At some point we may also add an aspect to track fine-grained event metadata such as session time, speaker, etc.

Web Quick Start has a default folder structure that lives in the Document Library of the Share site being used to manage the content. Within that there is one folder for editorial content and one for live content. Each section will typically map to a section of a site and will therefore show up in the site navigation, but you can exclude sections from the navigation.

Every section folder has a set of collections. A collection is an arbitrary grouping of site assets. Collections can either be static or query based.

For a query-based collection, Content Managers can use either CMIS Query Language or Lucene to define queries that identify the assets that are included in the collection. There are two sample data sets that ship with Web Quick Start.

One is for a Finance example site and the other is for a Government site. Once we imported the sample site, we deleted all of the sample content and then tweaked the collection definitions. The carousel works similarly. The other tweaks we made to the sample data set include telling Web Quick Start which rendition should be used for the various thumbnails in the site. We added a new rendition definition for the images shown in the carousel and a new rendition for the thumbnails used everywhere else.

Once we had some sample data in place and our collections defined, it was time to start laying out the pages. As luck would have it, the requirements matched up fairly closely to the layout of the sample financial site. Surf templates are just FreeMarker , after all. Other than minor re-arranging, our template modifications were limited to adding additional regions to existing templates. Once you define your page layouts, you use metadata on the section folders to tell Web Quick Start which page layout to use for a given piece of content.

The mapping is type-based. The template mapping is hierarchical. So if we specify:. For the Metaversant client that used Spring 3 and Tiles, for example, the template mapping specified which Tile definition to use. We spent most of our time on components. In Surf, components are implemented as web scripts. In this case, controllers are JavaScript. This one is simply grabbing a collection of articles and a parameter and sticking them on the model for the FreeMarker-based view to pick up.

CMIS and Apache Chemistry in Action

In it, you'll tackle hands-on examples for building applications on CMIS repositories from both the client and the server sides. You'll learn how to create new content-centric applications that install and run in any CMIS-compliant repository. It specifies a vendor-and language-neutral way to interact with any compliant content repository. Apache Chemistry provides complete reference implementations of the CMIS standard with robust APIs for developers writing tools, applications, and servers. In it, you'll find clear teaching and instantly useful examples for building content-centric client and server-side applications that run against any CMIS-compliant repository. This book requires some familiarity with content management systems and a standard programming language like Java or C. Jay regularly speaks on this subject at IBM's annual conferences.

It has been far too long since our last Apache Chemistry cmislib release, but we finally managed to get one out. The new release, 0. If you make no changes to your code the library will continue to use the Atom Pub binding, by default. But, the browser binding, which communicates with CMIS 1. To use the new browser binding, import it, then pass it to the CmisClient constructor, like this:. For more information, please see the docs.

Since OpenCms version 8. We do not describe the CMIS standard in depth. Therefore, we refer you to the CMIS specification. OpenCms version 8. So no configuration is required on the OpenCms side. We use the Apache Chemistry Workbench for this example. You can download it from here.

Content Management Interoperability Services

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Content Management Interoperability Services CMIS is an open standard that allows different content management systems to inter-operate over the Internet. CMIS defines a domain model plus bindings that can be used by applications to manipulate content stored in a repository. CMIS provides a common data model covering typed files and folders with generic properties that can be set or read.

The latest published CMIS 1. Keep up-to-date Cover Pages blog posts twitter press. On April 9, , Alfresco released Alfresco Community 3. On October 06, , OASIS issued a public call for participation in a new technical committee chartered to define specifications for use of Web services and Web 2.

CMIS and Apache Chemistry in Action (Paperback)

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Content Management Interoperability Services (CMIS)

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3 Comments

Blocburloger 17.05.2021 at 10:11

In my case, that repository is Alfresco 4.

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