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To understand this article, you need a basic understanding of Java and maven. See Maven in five minutes for a quick introduction to maven.
About Web Links
When users right-click an annotation, they see a context menu that contains one or more options called "linkouts," menus that run a Google Web search or open a Web page related to the selected item on some external site. The Weblinks module is responsible for creating and adding linkout menu items to the context menu.
The Weblinks module also lets users create all-new custom linkouts using regular expressions. It accomplishes does this feat by allowing regular expression patterns to be applied to the annotation or track currently selected to dynamically populate a context menu for a given selection. If an annotation or track id matches a user-defined pattern, then IGB creates a linkout menu item with URL defined in the custom linkout.
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The parent tag indicates that the POM for the IGB code base, defined using a relative path, is the parent for the Web Links POM. This means that the Web Links POM can reference dependencies defined in the parent POM. The parent tag also indicates that the is the par the IGB code base using a relative path. By inheriting from the parent POM, the Web Links module's POM can reference dependencies defined in the parent. Dependencies defined in the parent POM is compatible with IGB version 8.6.0 and higher.
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A very useful utility module which is used extensively in our project. We highly recommend you take a look at the content of this project (see https://code.google.com/p/guava-libraries/), and occasionally even demmand demand in our interfaces you leverage some of the collection data structures from Guava (e.g. Multimap). You will thank us later!
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The Web Links module accesses implementation of the IGB Service interfaces via the service registry managed by the OSGI runtime. There are several ways this could be done; however, our preferred way to access services is with the use of the Declarative Service @Component annotation.Note that in 2016, the core IGB team will focus on refining the IGB Services module to make the APIs easier to use for developers.
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@Component(immediate = true)
public class LinkControl implements AnnotationContextMenuProvider {
private static final String SEARCH_WEB_ICONPATH = "searchweb.png";
private static final org.slf4j.Logger logger = LoggerFactory.getLogger(MenuIcon.class);
private IgbService igbService;
public LinkControl() {
}
@Activate
private void activate() {
}
@Reference
public void setIgbService(IgbService igbService) {
this.igbService = igbService;
}
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@Override
public Optional<ContextMenuItem> buildMenuItem(AnnotationContextEvent event) {
if (event.getSelectedItems().isEmpty()) {
return Optional.empty();
}
SeqSymmetry primarySym = event.getSelectedItems().get(0);
if (primarySym instanceof CdsSeqSymmetry) {
primarySym = ((CdsSeqSymmetry) primarySym).getPropertySymmetry();
}
return buildContextMenuItem(primarySym); // a private method defined elsewhere in the class
}
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