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So we implement it to reach so far one is bookmarking while the other is marking an item as kid friendly

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.

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Now we will implement the feature for sharing kid friendly bookmark with partner websites.

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However the constraint is that only a kid friendly bookmark that is either a book or of eyeblink can

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be shared.

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So a movie cannot be shared.

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You may recall the slide from one officer up chapter which introduced this new requirement.

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Here we have this strength to get friendly books so you can see that there is this link called shared

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with snips where courtships is a fictitious part on the website.

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This link will be shown only for books and ramblings but not for movies.

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You can assume that this link shows up as soon as a staff member mocks either a book or a blink as kid

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friendly.

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Clicking on this link will invoke shared method in the back in which we know will be a method in the

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controller in the Bakken.

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Did we have a logic that will generate the data to be shared in SML format with the partner site like

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in the case of marking.

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Get friendly bookmarks.

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We already discussed implementation because for this feature we did that well and are using interfaces

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as an interface is needed for this new requirement.

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So we're already familiar with this class diagram to enforce the constraint that only book on wabbling

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can be shared.

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We define an interface called sharable which is implemented by only book and Roblin classes he called

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a sharable cannot be an abstract class because our classes are already extending that abstract bookmark

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class.

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Moreover sharing is an optional capability and so we know that it would have to be represented using

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an interface.

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So let's get started now and let's first create the interface shippable.

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Let's create it in a new package called partner as shootable has something to do better.

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Third party partner websites

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so let's create a new package

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partner

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.

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Let's create an interface here shootable

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and that's how you define the method get item data.

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Next let's have rebeling on book.

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Implement this sharable interface.

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Let's just open the book Class control shift are just and this book is implemented in open

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court.

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So just sit ired unimplemented methods which is to get item data.

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So if you scroll down so be how the Templer generated automatically.

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OK so we know that this method returns information about this particular item which is a book in XML

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format which isn't shared with a partner website.

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Typically data exchange between Web sites is done either in examen or Jason farmer Gissen is another

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format but it is much more compact and XML in case you don't know what ex-head malice.

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It is short for Extensible Markup Language And it basically encapsulates doodah using meaningful examinee

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tax so the docs describe what the data is about the exim unstring that is generated is human readable

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.

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Art can also be processed by machines suitable ex-MIL string we will use a string builder as there are

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several fields in book class and we need to combine them into a single string.

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Recall that it's not recommended to use plus operator for string concatenation especially when performance

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is critical.

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That surplus should be used only sparingly.

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OK so let's just get started and belive this particular method.

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You can just delete this

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Arnaud's builder

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so a builder has happened matter.

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So let's have the first semantic tag as item and its cluelessness.

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So I accidently tax how the starting tag and name tags are it's have an ending tag a name tag would

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have a forward slash followed by the tag name item.

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Now since this is of Bible book so let's have an element just for book saying that it's a book so it's

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Connard as Bible

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so book is the real data type is another I.

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Let's have a burn at night here.

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But it has real value.

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So let's just remove this

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and rebuild that Shane.

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Yes.

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I mean that's good one more happened here for the name tag.

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Now the title is present in the supercross which is bookmark.

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And to get that we just need to do when we need to invoke the get Bitly method in the superclass.

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So next

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so we have all these feelings and we need to combine We need to include all these fields in our Exham

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of string.

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So next let's say publisher

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schoolbags public publisher publication here.

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OK it's good been publisher.

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So let's call the element as publisher

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since publisher is available in this class itself so we can directly access it

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.

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Next let's have publication here

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.

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Next let's have John Ray

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.

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Next is Amazon rating

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.

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One more we have is authors let's just keep it here because it's like an important field.

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However alter says a string array rather than a string or an.

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It is a string array.

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So what we can do is we can make use of a third party library here we can use Apache Commons slang because

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it has it has a class called String Udall's which can be used to join to combine to concatenate all

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of the authors using a single function.

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OK.

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So with a single function in the string utils class we can combine all the authors all the alternates

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into a single string and we can do that.

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So let's use the string utos grads from Apache Commons line.

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But we don't have it here.

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So what we need to do is we need to download Apache a common Lange's and use the Jarve file for doc

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.

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So I have already done that.

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So I have it here but you can just go ahead and can just type in about the Commons monster lying.

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Here it is.

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And you can download Apache Commons line.

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That's the latest version is 3.4 and it requires that I was 6 and just you can download the binary here

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and just unzip it and extract the folder and within that with no room for Ladu you will have a jar file

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so you can just extract that jar file and store it on your desk.

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And then we need to import it into our into our eclipse.

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So the way we do it is just right click on three are here is going to properties going to be part and

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I had external jars and this is an older one so to me

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your

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think Howard here.

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Yes.

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So this is the one and lie.

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OK.

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So here is the reference library.

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So it's already there.

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So Apache Commons Lang has this class called String Udalls.

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So let me do it and let's just search for it.

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We just show that

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string your DOS.

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Here is the class String utos class.

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So it has a lot of utility functions and I'm sure you will be making use of this class quite a bit.

122

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So here there is one function called Join in and this is the one.

123

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So this can take a string array.

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It's an object array but you can pass a string array and you will pass on any operator like a hybrid

125

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of can be Ostrower or anything like that.

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And we will pass on common so that we get a comma separated string.

127

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So it will combine all the auteurs into it and into a single string which is operated by comma.

128

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And so let's just make use of this function

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.

130

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So you join others.

131

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Now the second argument is a comma.

132

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OK so that's it.

133

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So that's the string Udalls it's already imported.

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She's next.

135

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And let's just see written Berliner got to string.

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OK.

137

00:12:10,680  -->  00:12:12,630
So this would work on a string.

138

00:12:13,000  -->  00:12:15,110
So that's the good item there Dummett there.

139

00:12:15,490  -->  00:12:18,690
Let me just go ahead and do the same.

140

00:12:18,740  -->  00:12:24,400
Godard under Dummett that let me implement the Guitard underdone method in the grappling class because

141

00:12:24,390  -->  00:12:27,480
wabbling also implements this interface.

142

00:12:27,750  -->  00:12:32,760
And then I'll do this offline and I'll come back and show it to you.

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OK.

144

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Here it is.

145

00:12:35,860  -->  00:12:37,670
So we are implementing shareable.

146

00:12:37,960  -->  00:12:40,420
And of course we are extending bookmark.

147

00:12:41,130  -->  00:12:43,800
So here is the get item re-admitted.

148

00:12:44,350  -->  00:12:47,810
And as you can see we are once again using string builder.

149

00:12:48,400  -->  00:12:51,020
And so we have this item tags here.

150

00:12:51,040  -->  00:12:52,740
Opening tag on the closing tag.

151

00:12:53,380  -->  00:12:55,530
And we have pipe which is wabbling.

152

00:12:55,930  -->  00:13:02,260
Let's actually make this gap to be consistent and then the next element is title and the next is you

153

00:13:02,250  -->  00:13:04,510
aren't on the next as host.

154

00:13:04,720  -->  00:13:09,450
So those are the only fields that we have for for the ruling class.

155

00:13:09,490  -->  00:13:10,970
So that's about it for now.

156

00:13:11,020  -->  00:13:14,960
So just go ahead and implement what we covered so far here.

157

00:13:15,250  -->  00:13:20,580
Next we will complete the remaining part of this feature in the next lesson and we will code the logic

158

00:13:20,640  -->  00:13:23,920
in view controller and the manager process.

159

00:13:24,070  -->  00:13:30,320
OK so please just go ahead and call whatever has been shown in this class and this lesson