added paging to ChangesetViewer

plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgChangesetViewer.java

@@ -54,7 +54,6 @@ import java.text.ParseException;
 import java.text.SimpleDateFormat;
 
 import java.util.Date;
-import java.util.List;
 import java.util.StringTokenizer;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -73,9 +72,12 @@ public class HgChangesetViewer implements ChangesetViewer
   public static final String ID_TIP = "tip";
 
   /** Field description */
-  public static final String TEMPLATE =
+  public static final String TEMPLATE_CHANGESETS =
     "<changeset><id>{rev}:{node|short}</id><author>{author|escape}</author><description>{desc|escape}</description><date>{date|isodatesec}</date></changeset>\n";
 
+  /** Field description */
+  public static final String TEMPLATE_TOTAL = "{rev}";
+
   /** the logger for HgChangesetViewer */
   private static final Logger logger =
     LoggerFactory.getLogger(HgChangesetViewer.class);
@@ -104,23 +106,34 @@ public class HgChangesetViewer implements ChangesetViewer
 
   /**
    *
-   * @param startId
+   *
+   * @param start
    * @param max
    *
    * @return
    */
   @Override
-  public List<Changeset> getChangesets(String startId, int max)
+  public ChangesetPagingResult getChangesets(int start, int max)
   {
-    List<Changeset> changesets = null;
+    ChangesetPagingResult changesets = null;
     InputStream in = null;
 
     try
     {
       String repositoryPath = getRepositoryPath(repository);
+      int total = getTotalChangesets(repositoryPath);
+      int startRev = total - start;
+      int endRev = startRev - max;
+
+      if (endRev < 0)
+      {
+        endRev = 0;
+      }
+
       Command command = new SimpleCommand(handler.getConfig().getHgBinary(),
-                          "-R", repositoryPath, "log", "-r", "tip:0", "-l",
-                          String.valueOf(max), "--template", TEMPLATE);
+                          "-R", repositoryPath, "log", "-r",
+                          startRev + ":" + endRev, "--template",
+                          TEMPLATE_CHANGESETS);
       CommandResult result = command.execute();
 
       if (result.isSuccessfull())
@@ -132,12 +145,12 @@ public class HgChangesetViewer implements ChangesetViewer
 
         if ((cs != null) && Util.isNotEmpty(cs.getChangesets()))
         {
-          changesets = cs.getChangesets();
+          changesets = new ChangesetPagingResult(total, cs.getChangesets());
         }
         else if (logger.isWarnEnabled())
         {
-          logger.warn("could not find any changeset from {} to +{}", startId,
-                      max);
+          logger.warn("could not find any changeset from {} to {}", start,
+                      start + max);
         }
       }
       else
@@ -166,20 +179,6 @@ public class HgChangesetViewer implements ChangesetViewer
     return changesets;
   }
 
-  /**
-   * Method description
-   *
-   *
-   * @param max
-   *
-   * @return
-   */
-  @Override
-  public List<Changeset> getLastChangesets(int max)
-  {
-    return getChangesets(ID_TIP, max);
-  }
-
   /**
    * Method description
    *
@@ -231,6 +230,32 @@ public class HgChangesetViewer implements ChangesetViewer
     return handler.getDirectory(repository).getAbsolutePath();
   }
 
+  /**
+   * Method description
+   *
+   *
+   * @param repositoryPath
+   *
+   * @return
+   *
+   * @throws IOException
+   */
+  private int getTotalChangesets(String repositoryPath) throws IOException
+  {
+    int total = 0;
+    Command command = new SimpleCommand(handler.getConfig().getHgBinary(),
+                        "-R", repositoryPath, "tip", "--template",
+                        TEMPLATE_TOTAL);
+    CommandResult result = command.execute();
+
+    if (result.isSuccessfull())
+    {
+      total = Integer.parseInt(result.getOutput().trim());
+    }
+
+    return total;
+  }
+
   //~--- fields ---------------------------------------------------------------
 
   /** Field description */

scm-core/src/main/java/sonia/scm/io/SimpleCommand.java

@@ -117,7 +117,14 @@ public class SimpleCommand implements Command
   {
     if (logger.isDebugEnabled())
     {
-      logger.debug("start external process {}", command);
+      StringBuilder cmd = new StringBuilder();
+
+      for (String c : command)
+      {
+        cmd.append(c).append(" ");
+      }
+
+      logger.debug("start external process '{}'", cmd.toString());
     }
 
     ProcessBuilder processBuilder = new ProcessBuilder(command);

scm-core/src/main/java/sonia/scm/repository/ChangesetPagingResult.java

@@ -0,0 +1,131 @@
+/**
+ * Copyright (c) 2010, Sebastian Sdorra
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.repository;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.util.List;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlElement;
+import javax.xml.bind.annotation.XmlElementWrapper;
+import javax.xml.bind.annotation.XmlRootElement;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@XmlRootElement(name = "changeset-paging")
+@XmlAccessorType(XmlAccessType.FIELD)
+public class ChangesetPagingResult
+{
+
+  /**
+   * Constructs ...
+   *
+   */
+  public ChangesetPagingResult() {}
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param total
+   * @param changesets
+   */
+  public ChangesetPagingResult(int total, List<Changeset> changesets)
+  {
+    this.total = total;
+    this.changesets = changesets;
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public List<Changeset> getChangesets()
+  {
+    return changesets;
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public int getTotal()
+  {
+    return total;
+  }
+
+  //~--- set methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param changesets
+   */
+  public void setChangesets(List<Changeset> changesets)
+  {
+    this.changesets = changesets;
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param total
+   */
+  public void setTotal(int total)
+  {
+    this.total = total;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  @XmlElement(name = "changeset")
+  @XmlElementWrapper(name = "changesets")
+  private List<Changeset> changesets;
+
+  /** Field description */
+  private int total;
+}

scm-core/src/main/java/sonia/scm/repository/ChangesetViewer.java

@@ -33,10 +33,6 @@
 
 package sonia.scm.repository;
 
-//~--- JDK imports ------------------------------------------------------------
-
-import java.util.List;
-
 /**
  *
  * @author Sebastian Sdorra
@@ -49,20 +45,11 @@ public interface ChangesetViewer
    *
    *
    *
-   * @param startId
+   *
+   * @param start
    * @param max
    *
    * @return
    */
-  public List<Changeset> getChangesets(String startId, int max);
-
-  /**
-   * Method description
-   *
-   *
-   * @param max
-   *
-   * @return
-   */
-  public List<Changeset> getLastChangesets(int max);
+  public ChangesetPagingResult getChangesets(int start, int max);
 }

scm-webapp/src/main/java/sonia/scm/api/rest/resources/RepositoryResource.java

@@ -40,7 +40,7 @@ import com.google.inject.Provider;
 import com.google.inject.Singleton;
 
 import sonia.scm.config.ScmConfiguration;
-import sonia.scm.repository.Changeset;
+import sonia.scm.repository.ChangesetPagingResult;
 import sonia.scm.repository.ChangesetViewer;
 import sonia.scm.repository.Permission;
 import sonia.scm.repository.PermissionType;
@@ -50,14 +50,12 @@ import sonia.scm.repository.RepositoryException;
 import sonia.scm.repository.RepositoryHandler;
 import sonia.scm.repository.RepositoryManager;
 import sonia.scm.util.HttpUtil;
-import sonia.scm.util.Util;
 import sonia.scm.web.security.WebSecurityContext;
 
 //~--- JDK imports ------------------------------------------------------------
 
 import java.util.ArrayList;
 import java.util.Collection;
-import java.util.List;
 
 import javax.servlet.http.HttpServletRequest;
 
@@ -116,8 +114,8 @@ public class RepositoryResource
    *
    *
    * @param id
-   * @param startId
-   * @param max
+   * @param start
+   * @param limit
    *
    * @return
    *
@@ -127,8 +125,8 @@ public class RepositoryResource
   @Path("{id}/changesets")
   @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
   public Response getChangesets(@PathParam("id") String id, 
-                                @QueryParam("changeset") String startId,
-                                @DefaultValue("25") @QueryParam("max") int max)
+                                @DefaultValue("0") @QueryParam("start") int start,
+                                @DefaultValue("25") @QueryParam("limit") int limit)
                                 throws RepositoryException
   {
     Response response = null;
@@ -141,19 +139,10 @@ public class RepositoryResource
 
       if (changesetViewer != null)
       {
-        List<Changeset> changesets = null;
+        ChangesetPagingResult changesets = changesetViewer.getChangesets(start,
+                                             limit);
 
-        if (Util.isNotEmpty(startId))
-        {
-          changesets = changesetViewer.getChangesets(startId, max);
-        }
-        else
-        {
-          changesets = changesetViewer.getLastChangesets(max);
-        }
-
-        response = Response.ok(new GenericEntity<List<Changeset>>(changesets) {}
-        ).build();
+        response = Response.ok(changesets).build();
       }
       else
       {

scm-webapp/src/main/webapp/resources/js/sonia.repository.js

@@ -695,9 +695,14 @@ Sonia.repository.ChangesetViewerGrid = Ext.extend(Ext.grid.GridPanel, {
 
     var changesetStore = new Ext.data.JsonStore({
       id: 'changesetStore',
+      proxy: new Ext.data.HttpProxy({
         url: restUrl + 'repositories/' + this.repository.id  + '/changesets.json',
+        method: 'GET'
+      }),
       fields: ['id', 'date', 'author', 'description'],
+      root: 'changesets',
       idProperty: 'id',
+      totalProperty: 'total',
       autoLoad: true,
       autoDestroy: true
     });
@@ -718,7 +723,13 @@ Sonia.repository.ChangesetViewerGrid = Ext.extend(Ext.grid.GridPanel, {
       autoExpandColumn: 'changeset',
       autoHeight: true,
       store: changesetStore,
-      colModel: changesetColModel
+      colModel: changesetColModel,
+      bbar: new Ext.PagingToolbar({
+        store: changesetStore,
+        displayInfo: true,
+        pageSize: 25,
+        prependButtons: true
+      })
     }
     
     Ext.apply(this, Ext.apply(this.initialConfig, config));