Summary of steps. The following XML code contains metadata values that correspond to the previous illustration. For example, notice the bold items, which specify keywords. Include necessary files into your development project. If you are creating a client application using Java, include the necessary JAR files. If you are using web services, ensure that you include the proxy files.
Including LiveCycle Java library files. Setting connection properties. Include client JAR files, such as adobe-pdfutility-client. If you use the importMetadata method, pass in the following values:. A com. Document object that represents the PDF file. If you use the importXMP method, pass in the following values:.
Document object that represents an XML file that contains the metadata to be imported. In either case, the returned value is a com. Document object that represents the PDF file with the newly imported metadata. You can then save this object to disk. Create a Microsoft. See Invoking LiveCycle using Base64 encoding. Reference the Microsoft. NET client assembly. See Creating a. NET client assembly that uses Base64 encoding.
Invoking LiveCycle using Base64 encoding. Creating a.
View full size graphic. Invoke the XMP metadata import operation. Include project files Include necessary files into your development project. Note: The adobe-pdfutility-client. If you use the importMetadata method, pass in the following values: A com.
If you use the importXMP method, pass in the following values: A com.The Azure Instance Metadata Service IMDS provides information about currently running virtual machine instances and can be used to manage and configure your virtual machines. Information provided includes the SKU, network configuration, and upcoming maintenance events.
For a complete list of the data that is available, see metadata APIs. The endpoint is available at a well-known non-routable IP address This service is generally available in all Azure Regions. It regularly receives updates to expose new information about virtual machine instances.
This page reflects the up-to-date metadata APIs available. The service is available in generally available Azure regions. You can see the newest versions listed in this availability table.
AEM Tagging Framework
As newer versions are added, older versions can still be accessed for compatibility if your scripts have dependencies on specific data formats. When you query the Instance Metadata Service, you must provide the header Metadata: true to ensure the request was not unintentionally redirected.
Access all data categories for a virtual machine instance using the following request:. However, different APIs return data in different formats if requested. The following table is a reference of other data formats APIs may support. To access a non-default response format, specify the requested format as a query string parameter in the request. For example:. The Instance Metadata Service endpoint is accessible only from within the running virtual machine instance on a non-routable IP address.
In addition, any request with a X-Forwarded-For header is rejected by the service. Requests must also contain a Metadata: true header to ensure that the actual request was directly intended and not a part of unintentional redirection. All following example responses are pretty-printed for readability. Part of the scenario served by Instance Metadata Service is to provide guarantees that the data provided is coming from Azure.
We sign part of this information so that marketplace images can be sure that it's their image running on Azure. The following example responses are pretty-printed for readability. Api-version is a mandatory field. Refer to the service availability section for supported API versions. Nonce is an optional digit string. Due to IMDS's caching mechanism, a previously cached nonce value may be returned.
The signature blob is a pkcs7 signed version of document. It contains the certificate used for signing along with the VM details like vmId, sku, nonce, subscriptionId, timeStamp for creation and expiry of the document and the plan information about the image.
The plan information is only populated for Azure Market place images. The certificate can be extracted from the response and used to validate that the response is valid and is coming from Azure. The response is a JSON string.
The following example response is pretty-printed for readability. As a service provider, you may require to track the number of VMs running your software or have agents that need to track uniqueness of the VM. For certain scenarios, placement of different data replicas is of prime importance.
Content Fragments are typically created as channel-agnostic content, that is intended to be used and re-used across channels, which in turn wrap the content in a context-specific experience. Content Fragments, independent of layout, can be used directly in AEM Sites with Core Components or can be delivered in a headless manner to downstream channels.
This video series covers the delivery options for using Content Fragments. Details about defining and authoring Content Fragments can be found here. Content Fragments. Using Content Fragments in Web pages Your browser does not support the iframe element. The Content Fragment List Component is a new component that allows an author to define a query that will dynamically populate the page with a list of Content Fragments.
First introduced in AEM 6. The Content Services framework provides more flexibility and options as to what data gets exposed. A typical use case is ingesting 3rd party content on an AEM author environment. Additional Resources Authoring Content Fragments. To download and install the package below on an AEM 6.
I'm thinking about create a component by I don't know what i sholud write inside. Usecase : An asset is displayed in page and it will have link MetadataInfo. Once I click on the MetadataInfo link, it will re-direct to metadatainfo page which will display all the metadata information of the asset.
Once the link is clicked it redirects to url of the metadatinfo page appended with parameter "assetpath" containing the asseturl. Created a servlet which will get the parameter "path" containig the asseturl as string and convert it to a resource. Will resolve it to resource till the metadata node of the asset. By Value map got all the properties of metadata and created hashmap storing all the metadata properties as Key:Value pair. Learn more. How to display Asset Metadata on a Page?
Ask Question. Asked 11 months ago. Active 9 months ago. Viewed 71 times. I'm learning by myself to use AEM, I'm using metadata for building my own forms for assets. Edoardo Mongale. Edoardo Mongale Edoardo Mongale 1 1 1 bronze badge. Welcome to StackOverflow Edoardo. Can you please provide more information.By Anirudh Sharma.
Sometimes we are faced with a situation where we need to pass data from one workflow step to the another. Please note that only primitive data types like Integer, String etc. If you have a requirement to pass non-primitive data then use the byte array. Caution: If the data to be passed is too large, refrain passing InputStream. Instead, a better approach is to save the data in a JCR node in the step and retrieve it from the JCR node in a later step.
A MetaDataMap is the data structure which acts as a value map and allows users to set and get data among the steps. Code example Let's see a code example to demonstrate this concept.
Here we will be using two process steps.
In the first, we will be passing data and in the second, we will be retrieving it. Component; import org. Logger; import org. LoggerFactory; import com. WorkflowException; import com. WorkflowSession; import com. WorkItem; import com. WorkflowProcess; import com.
So in this post, we looked into how to work with MetaDataMap API and saw how can we pass data from one workflow step to another. I hope you enjoyed this post. Your suggestions and feedback are always welcome. Post a Comment. Hello everyone! Welcome to this AEM development series. We can all see the revolution of Digital Marketing today. Companies are dying to be a part of it and they have made this a war for the Digital Marketing tools.
Some authors advise to use JCR API like more performance optimized and the rest are on the side of Apache Sling because it's faster to write and far more readable and maintainable in the long run.
And I had some questions:. Which API should I use and when? It is then important however to know the border between these two scenarios.
Maciej notices it is around 1ms difference for opening the regular AEM page without taking any caching into account. Taking care of the performance is totally unnecessary in that case.
We should instead focus on writing code that is readable, understandable, reduced to the minimum and reusing already existing APIs, frameworks, util classes that are covered already by proper unit tests and peer reviewed, rather than reinventing the wheel from the beginning. Base on that, we should also prefer AEM layer over Sling layer.
From my experience, I would say that JCR should be utilized in few scenarios, mainly when traversing of a large amount of data of CRX database and it cannot be achieved by any searching API. However, the most important thing is to not mix both abstract layers in your implementation.
In this scenario, obviously the Sling API's win by a huge margin on the ease of access and usability. Approach: In such a requirement where you need to do certain one-time changes to your JCR repository, you should use the JCR APIs by creating a Standalone Java Application to perform such tasks instead of creating an unnecessary component, its controller, an unnecessary page to put this component and then using the Sling API's in the controller to perform these tasks.
Learn more. Asked 2 years, 8 months ago. Active 2 years, 8 months ago. Viewed 2k times. And I had some questions: What practice is better from your point of view?
What is more often used in production projects? Kamil Ciecierski 1 1 silver badge 6 6 bronze badges. Anthony Piontkowski Anthony Piontkowski 89 7 7 bronze badges. Active Oldest Votes. Kamil Ciecierski Kamil Ciecierski 1 1 silver badge 6 6 bronze badges.
Show Menu. This article explores the major APIs and when and why they should be used. This order is a general rule, meaning exceptions exist. Acceptable reasons to break from this rule are:. These APIs are supported and should not be avoided, unless com.Create Custom workflow for dam asset upload AEM 6.4
New abstractions such as Content Fragments and Experience Fragments are built out in the com. The most important concern is maintaining a consistent query language across the code base, to reduce complexity and cost to understand. OOTB predicates supporting common query requirements. Extensible API, allowing for the development of custom query predicates. To mitigate this leak follow this code sample.
Providing security context via the ResourceResolver. Updating properties via the ModifiableValueMap. Servlet Filters. Event and Job Handlers. Sling Models. Service users. Ensure Sling APIs should not be used instead.
OSGi Declarative Services 1. Exceptions to the rule The following are common exceptions to the rules defined above. While the com. Query APIs AEM QueryBuilder does not support certain query functions such as suggestionsspellcheck and index hints amongst other less common functions.
Helpful code snippets The following are helpful Java code snippets that illustrate best practices for common use cases using discussed APIs. Using this syntax, an explicit call to resourceResolver.
Manually closed Sling ResourceResolver ResourceResolvers can be must be manually closed in a finally block, if the auto-closing technique shown above cannot be used. Alternative approach Adapting a resource to an Asset requires the resource itself to be the dam:Asset node. Alternative approach Adapting a resource to a Page requires the resource itself to be the cq:Page node.
Note that this is not a ValueMap, the 2nd parameter default value, and auto-type casting is not supported. In this case, the AEM object may have to be converted into a Sling Resource to efficiently locate the desired property or sub-resource. This can only write to the immediate node relative property paths are not supported. Note the call to. Create a Sling Resource ResourceResolver supports basic operations for creating resources.
Delete a Sling Resource ResourceResolver supports removing a resource. Yes No.