added client method to fetch a single changeset

scm-clients/scm-client-api/src/main/java/sonia/scm/client/ClientChangesetHandler.java

@@ -35,6 +35,7 @@ package sonia.scm.client;
 
 //~--- non-JDK imports --------------------------------------------------------
 
+import sonia.scm.repository.Changeset;
 import sonia.scm.repository.ChangesetPagingResult;
 
 /**
@@ -45,6 +46,18 @@ import sonia.scm.repository.ChangesetPagingResult;
 public interface ClientChangesetHandler
 {
 
+  /**
+   * Method description
+   *
+   *
+   * @param revision
+   *
+   * @return
+   * 
+   * @since 1.12
+   */
+  public Changeset getChangeset(String revision);
+
   /**
    * Method description
    *

scm-clients/scm-client-impl/src/main/java/sonia/scm/client/JerseyClientChangesetHandler.java

@@ -35,6 +35,7 @@ package sonia.scm.client;
 
 //~--- non-JDK imports --------------------------------------------------------
 
+import sonia.scm.repository.Changeset;
 import sonia.scm.repository.ChangesetPagingResult;
 import sonia.scm.repository.Repository;
 
@@ -66,6 +67,42 @@ public class JerseyClientChangesetHandler implements ClientChangesetHandler
 
   //~--- get methods ----------------------------------------------------------
 
+  /**
+   * Method description
+   *
+   *
+   * @param revision
+   *
+   * @return
+   */
+  @Override
+  public Changeset getChangeset(String revision)
+  {
+    Changeset changeset = null;
+    String url =
+      session.getUrlProvider().getRepositoryUrlProvider().getChangesetUrl(
+          repository.getId(), revision);
+    WebResource resource = session.getClient().resource(url);
+    ClientResponse response = null;
+
+    try
+    {
+      response = resource.get(ClientResponse.class);
+
+      if (response.getStatus() != ScmClientException.SC_NOTFOUND)
+      {
+        ClientUtil.checkResponse(response, 200);
+        changeset = response.getEntity(Changeset.class);
+      }
+    }
+    finally
+    {
+      ClientUtil.close(response);
+    }
+
+    return changeset;
+  }
+
   /**
    * Method description
    *

scm-core/src/main/java/sonia/scm/url/RepositoryUrlProvider.java

@@ -79,6 +79,19 @@ public interface RepositoryUrlProvider extends ModelUrlProvider
   public String getChangesetUrl(String repositoryId, String path,
                                 String revision, int start, int limit);
 
+  /**
+   * Method description
+   *
+   *
+   * @param repositoryId
+   * @param revision
+   *
+   * @return
+   * 
+   * @since 1.12
+   */
+  public String getChangesetUrl(String repositoryId, String revision);
+
   /**
    * Method description
    *

scm-core/src/main/java/sonia/scm/url/RestRepositoryUrlProvider.java

@@ -63,6 +63,11 @@ public class RestRepositoryUrlProvider extends RestModelUrlProvider
   /** Field description */
   public static final String PART_BROWSE = "browse";
 
+  /**
+   * @since 1.12
+   */
+  public static final String PART_CHANGESET = "changeset";
+
   /** Field description */
   public static final String PART_CHANGESETS = "changesets";
 
@@ -177,6 +182,26 @@ public class RestRepositoryUrlProvider extends RestModelUrlProvider
         PARAMETER_LIMIT, limit).toString();
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param repositoryId
+   * @param revision
+   *
+   * @return
+   *
+   * @since 1.12
+   */
+  @Override
+  public String getChangesetUrl(String repositoryId, String revision)
+  {
+    revision = UrlUtil.fixRevision(revision);
+
+    return new UrlBuilder(base).appendUrlPart(repositoryId).appendUrlPart(
+        PART_CHANGESET).appendUrlPart(revision).append(extension).toString();
+  }
+
   /**
    * Method description
    *

scm-core/src/main/java/sonia/scm/url/WUIRepositoryUrlProvider.java

@@ -64,6 +64,11 @@ public class WUIRepositoryUrlProvider extends WUIModelUrlProvider
   /** Field description */
   public static final String VIEW_BLAME = "blame";
 
+  /**
+   * @since 1.12
+   */
+  public static final String VIEW_CHANGESET = "changeset";
+
   /** Field description */
   public static final String VIEW_CONTENT = "content";
 
@@ -167,6 +172,26 @@ public class WUIRepositoryUrlProvider extends WUIModelUrlProvider
         repositoryId).append(start).append(limit).toString();
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param repositoryId
+   * @param revision
+   *
+   * @return
+   *
+   * @since 1.12
+   */
+  @Override
+  public String getChangesetUrl(String repositoryId, String revision)
+  {
+    revision = UrlUtil.fixRevision(revision);
+
+    return new WUIUrlBuilder(baseUrl, VIEW_CHANGESET).append(
+        repositoryId).append(revision).toString();
+  }
+
   /**
    * Method description
    *