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2 -In some cases, the input you receive or the output that you need to send to an external party cannot handle all characters or the input or output is written with the help of a character set. In this microlearning, we will learn how you can define the character set for file-based connectivity to ensure that you can process and deliver files according to the specifications.
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2 +<div class="ez-academy">
3 + <div class="ez-academy_body">
3 3  
4 -Should you have any questions, please contact [[academy@emagiz.com>>mailto:academy@emagiz.com]].
5 +<div class="doc">
5 5  
6 -* Last update: May 31th, 2021
7 -* Required reading time: 7 minutes
8 8  
8 +
9 += Annotations =
10 +
11 +In this microlearning, we will focus on using annotations to clarify your thought process. In the annotation, you either describe a best practice everyone should follow when they change that flow (i.e. within the asynchronous routing), describe how the (more complex) parts of the flow work or describe (parts of) of your message definitions (i.e. CDM, API Gateway Data model, system message, etc.). This will help yourself and others every time changes are needed.
12 +
13 +Should you have any questions, please contact academy@emagiz.com.
14 +
15 +* Last update: May 9th, 2021
16 +* Required reading time: 5 minutes
17 +
9 9  == 1. Prerequisites ==
10 10  
11 11  * Basic knowledge of the eMagiz platform
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12 12  
13 13  == 2. Key concepts ==
14 14  
15 -This microlearning centers around learning how to define the character set to ensure that eMagiz processes the information correctly.
24 +This microlearning centers around using annotations.
25 +With annotations, we mean: A piece of text to explain something to yourself and others
16 16  
17 -By character set, we mean: The composite number of different characters that are being used and supported by computer software and hardware. It consists of codes, bit patterns, or natural numbers used in defining some particular character.
27 +Annotations can be used for:
18 18  
19 -* Some external system talk in a different character set
20 -* eMagiz talks in default UTF-8 as a character set and assumes everyone else also does this
21 -* In cases of mismatch correct is at the point where you talk with the other system (i.e. entry or exit)
29 +* Describing a best practice everyone should follow
30 +* Describing (more complex) parts of the flow
31 +* Describe (parts of) your message definitions
22 22  
23 -== 3. Character set ==
24 24  
25 -In some cases, the input you receive or the output that you need to send to an external party cannot handle all characters or the input or output is written with the help of a character set. In this microlearning, we will learn how you can define the character set for file-based connectivity to ensure that you can process and deliver files according to the specifications.
26 26  
27 -Sometimes external systems only talk in a specific character set. To ensure that all the data is properly communicated between eMagiz and the other system we need to make sure that we define which character set that is so we can tell it to eMagiz via a component. That way eMagiz will deviate from its default (i.e. UTF-8) and will process the file according to that different character set. In practice, we mainly see windows-1252 as an alternative that pops up once in a while. In various components that deal with file handling, you can define the character set on which eMagiz should act. Examples of such components are:
35 +== 3. Annotations ==
28 28  
29 -- File to string transformer
30 -- Flat file to XML transformer
31 -- File outbound channel adapter
37 +In this microlearning, we will focus on using annotations on the flow level to clarify our thought process. In the annotation, you either describe a best practice everyone should follow when they change that flow (i.e. within the asynchronous routing) or describe how the (more complex) parts of the flow work. This will help yourself and others every time changes are needed within the flow.
32 32  
33 -In all these components you have the option to define the character set within the Advanced tab of the component. In this microlearning, we will use the File to string transformer to illustrate how that will look.
39 +Annotations can be used for:
34 34  
35 -[[image:Main.Images.Microlearning.WebHome@novice-file-based-connectivity-characterset--characterset-configuration.png]]
41 +* Describing a best practice everyone should follow
42 +* Describing (more complex) parts of the flow
43 +* Describe (parts of) your message definitions
36 36  
37 -In this field, you can define the character set of your choice. To make this work in eMagiz you need to navigate to the Create phase of eMagiz and open the entry flow in which you want to retrieve the file to a certain location. Within the context of this flow, we need to add functionality that will ensure that the correct character set is used. To do so first enter "Start Editing" mode on flow level. After that open, the File to string transformer, navigate to the Advanced tab, and fill in the correct character set. After you have defined the correct character set the only thing left to do is to Save the component. See the suggested additional readings section on the complete list of character sets that are supported by Java 8.
45 +To clarify the use cases let us take a look at how annotations can be added within the eMagiz platform. In our first example, we will take a look at asynchronous routing. In many eMagiz projects, a best practice is followed on how to add something to the asynchronous routing (or change something within the asynchronous routing). Because the best practice contains multiple steps it makes sense to use the annotation functionality of eMagiz to define all these steps and register them at the place you need them (i.e. the asynchronous routing). Having done so will result in something like this:
38 38  
39 -Congratulations you have successfully learned how to specify the character set.
47 +<p align="center">[[image:novice-devops-perspectives-annotations--annotation-best-practice-async-routing.png||]]</p>
40 40  
49 +The second example is about using annotations on the flow level to describe parts of the flow. In this example, we will use the annotation to describe that we use a filter to determine which messages are picked up from a local directory and how we filter. That way anyway opening the flow has to merely read the annotation to get the context. Having done so will result in something like this:
50 +
51 +<p align="center">[[image:novice-devops-perspectives-annotations--describe-parts-of-flow.png||]]</p>
52 +
53 +The third example does not take place on the flow level but the message definition level. Therefore instead of going to Create, we go to Design. In Design when you navigate to the CDM, API Gateway Data model, Event Streaming Data model, message definitions, etc. you have the option to add annotations to the canvas. In this example, we want to make clear to all that make changes that a certain part of our CDM is used by a lot of integrations within eMagiz and therefore everyone should be careful and think twice before adjusting anything related to that part. Having done so will result in something like this:
54 +
55 +<p align="center">[[image:novice-devops-perspectives-annotations--describe-crucial-part-of-cdm.png||]]</p>
56 +
57 +Now that we saw some examples let us turn our attention to the how. How can I add an annotation and how can I link it. Adding the annotation is simple. You drag the annotation icon from the left context menu onto the canvas. As a result, an empty annotation will be shown on the canvas. By double-clicking on it you can type whatever you want. Note that you need to be in "Start Editing" mode to change anything, including annotations.
58 +
59 +<p align="center">[[image:novice-devops-perspectives-annotations--annotation-icon-context-menu.png||]]</p>
60 +
61 +When you are satisfied with what you have written down you can press the Save button. After you have done so you can rescale the annotation to ensure that the complete text is visible. To link the annotation to a component (on flow level) or an entity (on message definition level) you hover over the annotation until your mouse indicator changes to a + icon, execute a right-click and drag from the annotation to the component in question.
62 +
63 +Now you know what annotations are good for and how you can add them within the eMagiz platform.
64 +
65 +===== Practice =====
66 +
41 41  == 4. Assignment ==
42 42  
43 -Configure an entry in which you define the component and configuration needed to process a file on a per-line basis.
69 +Add annotation on the flow level that describes how (a part of) a flow works.
44 44  This assignment can be completed with the help of the (Academy) project that you have created/used in the previous assignment.
45 45  
46 46  == 5. Key takeaways ==
47 47  
48 -* Some external system talk in a different character set
49 -* eMagiz talks in default UTF-8 as a character set and assumes everyone else also does this
50 -* In cases of mismatch correct is at the point where you talk with the other system (i.e. entry or exit)
51 -* eMagiz provides several components within which you can define the character set
74 +* Annotations can be used for:
75 + * Describing a best practice everyone should follow
76 + * Describing (more complex) parts of the flow
77 + * Describe (parts of) your message definitions
78 +* You can add annotations by dragging and dropping the annotation icon on the canvas.
52 52  
53 -== 6. Suggested Additional Readings ==
54 54  
55 -If you are interested in this topic and want more information on it please read the help text provided by eMagiz and read the following links:
56 56  
57 -* https://docs.oracle.com/javase/8/docs/technotes/guides/intl/encoding.doc.html
58 -* https://www.techopedia.com/definition/941/character-set
59 -* https://www.smashingmagazine.com/2012/06/all-about-unicode-utf8-character-sets/
82 +== 6. Suggested Additional Readings ==
60 60  
84 +There are no suggested additional readings on this topic
85 +
61 61  == 7. Silent demonstration video ==
62 62  
63 63  This video demonstrates how you could have handled the assignment and gives you some context on what you have just learned.
64 64  
65 -{{video attachment="novice-file-based-connectivity-characterset.mp4" reference="Main.Videos.Microlearning.WebHome"/}}
90 +<iframe width="1280" height="720" src="../../vid/microlearning/novice-devops-perspectives-annotations.mp4" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
66 66  
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