[Jakarta-slide Wiki] Update of "Sample API application" by James Kelly

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The following page has been changed by James Kelly:
http://wiki.apache.org/jakarta-slide/Sample_API_application

The comment on the change is:
Added properties example

------------------------------------------------------------------------------
- Sample application sent by Stefan Fromm which was found in mailing-list archives (jakarta-slide-user, Mon, 06 Sep 2004 12:29:35 GMT)
+ = Creating File Revisions =
  
- It shows how to create revisions for file. 
+ Sample application sent by Stefan Fromm which was found in mailing-list archives (jakarta-slide-user, Mon, 06 Sep 2004 12:29:35 GMT) It shows how to create revisions for file.
+  
  {{{
  import java.io.ByteArrayInputStream;
  import java.util.Date;
@@ -157, +158 @@

  }
  }}}
  
+ = Getting Properties =
+ 
+ This example demonstrates how to access file contents and properties from the SlideAPI.
+ 
+ {{{
+ import java.util.Enumeration;
+ 
+ import javax.transaction.NotSupportedException;
+ import javax.transaction.SystemException;
+ 
+ import org.apache.slide.authenticate.CredentialsToken;
+ import org.apache.slide.authenticate.SecurityToken;
+ import org.apache.slide.common.Domain;
+ import org.apache.slide.common.NamespaceAccessToken;
+ import org.apache.slide.common.SlideToken;
+ import org.apache.slide.common.SlideTokenImpl;
+ import org.apache.slide.content.Content;
+ import org.apache.slide.content.NodeProperty;
+ import org.apache.slide.content.NodeRevisionContent;
+ import org.apache.slide.content.NodeRevisionDescriptor;
+ import org.apache.slide.content.NodeRevisionDescriptors;
+ 
+ /**
+  * An example the Slide API that demonstrates fetching the properties
+  * enumeration from a NodeRevisionDescriptor. This example assumes the existance
+  * of "/files/test.txt" in the store (this file can be generated by the
+  * SlideVersionsTest in the example above.)
+  * 
+  * @author James Kelly
+  */
+ public class SlideTest2 {
+ 
+     /**
+      * Prints the contents and properties for "/files/test.txt"
+      * 
+      * @param args
+      */
+     public static void main(String[] args) {
+         SlideTest2 client = new SlideTest2();
+         try {
+             client.printContent("/files/test.txt");
+             client.printProperties("/files/test.txt");
+         } catch (NotSupportedException e) {
+ 
+             e.printStackTrace();
+         } catch (SystemException e) {
+             e.printStackTrace();
+         }
+     }
+ 
+     /** Default Namespace */
+     private NamespaceAccessToken namespace;
+ 
+     /** Security Token */
+     private SlideToken token;
+ 
+     /**
+      * Loads the default namespace and creates a new security token for "root"
+      */
+     public SlideTest2() {
+         this.namespace = Domain.accessNamespace(new SecurityToken(""), Domain
+                 .getDefaultNamespace());
+         this.token = new SlideTokenImpl(new CredentialsToken("root"));
+         this.token.setForceStoreEnlistment(true);
+     }
+ 
+     /**
+      * Fetches a file from the store and prints its content to STOUT.
+      * 
+      * @param path
+      *            the path to the file
+      * @throws NotSupportedException
+      * @throws SystemException
+      */
+     public void printContent(String path) throws NotSupportedException,
+             SystemException {
+         this.namespace.begin();
+         try {
+             Content c = this.namespace.getContentHelper();
+             NodeRevisionDescriptors revs = c.retrieve(this.token, path);
+             NodeRevisionDescriptor rev = c.retrieve(this.token, revs, revs
+                     .getLatestRevision());
+             NodeRevisionContent nrc = c.retrieve(this.token, path, rev);
+             System.out.print(nrc.getContent());
+         } catch (Exception e) {
+             e.printStackTrace();
+         } finally {
+             this.namespace.rollback();
+         }
+     }
+ 
+     /**
+      * Fetches and prints the properties enumeration to STDOUT.
+      * 
+      * @param path
+      *            the file URI
+      * @throws IllegalStateException
+      * @throws SecurityException
+      * @throws SystemException
+      * @throws NotSupportedException
+      */
+     @SuppressWarnings("unchecked")
+     public void printProperties(String path) throws IllegalStateException,
+             SecurityException, SystemException, NotSupportedException {
+         this.namespace.begin();
+         try {
+             Content c = this.namespace.getContentHelper();
+             NodeRevisionDescriptors revs = c.retrieve(this.token, path);
+             NodeRevisionDescriptor rev = c.retrieve(this.token, revs, revs
+                     .getLatestRevision());
+             Enumeration e = rev.enumerateProperties();
+             while (e.hasMoreElements()) {
+                 NodeProperty p = (NodeProperty) e.nextElement();
+                 System.out.println(String.format("%s = %s", p.getName(), p
+                         .getValue()));
+             }
+         } catch (Exception e) {
+             e.printStackTrace();
+         } finally {
+             this.namespace.rollback();
+         }
+     }
+ }
+ }}}
+ 

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