Difference between revisions of "OSGi : Develop Simple Apps"

Latest revision as of 22:56, 24 January 2011

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OSGi Activities

Start and run the Eclipse for OSGi as installed in the previous lecture.
Open the Subversion Perspective in Eclipse for OSGi.
Check out the Simple Sample from OSGi Course Repository
Run the sample and change it.
Define the main steps involved in developing OSGi applications.
Write a small tutorial (main steps) about using Eclipse to develop OSGi applications.

Start the lab activities in the order defined below:

Bundels and Java Applications

Check out the Service Interface
Check out the Service Provider
Check out the Service Consumer

Steps for Building Applications from Bundels

Bundels and the Declarative Services

Check out the Declarative Service Consumer
Check out the Declarative Service Provider

Steps for Building Declarative Services

@@ Line 1: / Line 1: @@
-{{Ecl_activities|type=OSGi|type-repo=osgi}}
+{{Ecl_activities|type=OSGi|type-repo=osgi}}__NOTOC__
+<h2>Bundels and Java Applications</h2>
 # Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-interface/ Service Interface]
 # Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-serviceprovider/ Service Provider]
 # Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-serviceconsumer/ Service Consumer]
+<h3>[[Steps for Building Applications from Bundels]]</h3>
-<strong>Steps for Building Bundels</strong>
+[[File:OSGi-DS.png|border|SOA in JVM|400px| ]]
-<h4>1. Study the Interfaces</h4>
-* [http://www.osgi.org/javadoc/r4v42/org/osgi/framework/Bundle.html Bundle]
-* [http://www.osgi.org/javadoc/r4v42/org/osgi/framework/BundleContext.html BundleContext]
-* [http://www.osgi.org/javadoc/r4v42/org/osgi/framework/BundleActivator.html BundleActivator]
-<h4>2. Define the Bundle that provide the service (Provider Bundle)</h4>
-<h5>2.1 Define the Java Interface that exposes the services</h5>
-Let us suppose that you want to define a service that allows the user to find a book from the book isbn. Then the interface should look similare with this one:
-<source lang="java">
-package cs.ecl.osgi.simple.bookfinder;
-public interface BookFinder {
-	Book findBook(int isbn) throws BookNotFoundException;
-}
-</source>
-Define in the same bundle the classes that you need such as: Book and BookNotFoundException
-<source lang="java">
-package cs.ecl.osgi.simple.bookfinder;
-public class Book {
-	private int isbn;
-	private String title;
-	public Book(int isbn, String title) {
-		super();
-		this.isbn = isbn;
-		this.title = title;
-	}
-	public String getTitle() {
-		return title;
-	}
-	public void setTitle(String title) {
-		this.title = title;
-	}
-	public int getIsbn() {
-		return isbn;
-	}
-	public void setIsbn(int isbn) {
-		this.isbn = isbn;
-	}
-}
-package cs.ecl.osgi.simple.bookfinder;
-public class BookNotFoundException extends Exception {
-	private static final long serialVersionUID = -6184839510952070091L;
-	public BookNotFoundException() {
-		super();
-	}
-	public BookNotFoundException(String arg0) {
-		super(arg0);
-	}
-}
-</source>
-Define in the MANIFEST.MF that cs.ecl.osgi.simple.bookfinder is the '''Exported-Package'''
+<h2>Bundels and the Declarative Services</h2>
-<source lang="xml">
+# Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-declarativeservice-consumer Declarative Service Consumer]
-Manifest-Version: 1.0
+# Check out the [https://guest:1673852@zenit.senecac.on.ca/svn/ecl500/Lectures/trunk/w11-osgi-simple-declarativeservice-provider Declarative Service Provider]
-Bundle-ManifestVersion: 2
+<h3>[[Steps for Building Declarative Services]]</h3>
-Bundle-Name: Bookfinder
-Bundle-SymbolicName: cs.ecl.osgi.simple.bookfinder
-Bundle-Version: 1.0.0.qualifier
-Bundle-RequiredExecutionEnvironment: JavaSE-1.6
-Bundle-Vendor: Seneca College - Eclipse Course
-Export-Package: cs.ecl.osgi.simple.bookfinder
-</source>

Difference between revisions of "OSGi : Develop Simple Apps"

Latest revision as of 22:56, 24 January 2011

Bundels and Java Applications

Steps for Building Applications from Bundels

Bundels and the Declarative Services

Steps for Building Declarative Services

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