added SvnRepositoryViewer

plugins/scm-svn-plugin/src/main/java/sonia/scm/repository/SvnChangesetViewer.java

@@ -0,0 +1,159 @@
+/**
+ * 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;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.tmatesoft.svn.core.SVNException;
+import org.tmatesoft.svn.core.SVNLogEntry;
+import org.tmatesoft.svn.core.SVNURL;
+import org.tmatesoft.svn.core.io.SVNRepository;
+import org.tmatesoft.svn.core.io.SVNRepositoryFactory;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class SvnChangesetViewer implements ChangesetViewer
+{
+
+  /** the logger for SvnChangesetViewer */
+  private static final Logger logger =
+    LoggerFactory.getLogger(SvnChangesetViewer.class);
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param handler
+   * @param repostory
+   */
+  public SvnChangesetViewer(SvnRepositoryHandler handler, Repository repostory)
+  {
+    this.handler = handler;
+    this.repostory = repostory;
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param start
+   * @param max
+   *
+   * @return
+   */
+  @Override
+  public ChangesetPagingResult getChangesets(int start, int max)
+  {
+    ChangesetPagingResult changesets = null;
+    File directory = handler.getDirectory(repostory);
+    SVNRepository repository = null;
+
+    try
+    {
+      repository = SVNRepositoryFactory.create(SVNURL.fromFile(directory));
+
+      long total = repository.getLatestRevision();
+      long startRev = total - start;
+      long endRev = total - start - (max - 1);
+
+      if (endRev < 0)
+      {
+        endRev = 0;
+      }
+
+      List<Changeset> changesetList = new ArrayList<Changeset>();
+      Collection<SVNLogEntry> entries = repository.log(new String[] { "" },
+                                          null, startRev, endRev, true, true);
+
+      for (SVNLogEntry entry : entries)
+      {
+        changesetList.add(createChangeset(entry));
+      }
+
+      changesets = new ChangesetPagingResult((int) total, changesetList);
+    }
+    catch (SVNException ex)
+    {
+      logger.error("could not open repository", ex);
+    }
+    finally
+    {
+      repository.closeSession();
+    }
+
+    return changesets;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param entry
+   *
+   * @return
+   */
+  private Changeset createChangeset(SVNLogEntry entry)
+  {
+    return new Changeset(String.valueOf(entry.getRevision()),
+                         entry.getDate().getTime(), entry.getAuthor(),
+                         entry.getMessage());
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private SvnRepositoryHandler handler;
+
+  /** Field description */
+  private Repository repostory;
+}

plugins/scm-svn-plugin/src/main/java/sonia/scm/repository/SvnRepositoryHandler.java

@@ -45,6 +45,7 @@ import sonia.scm.Type;
 import sonia.scm.io.FileSystem;
 import sonia.scm.plugin.ext.Extension;
 import sonia.scm.store.StoreFactory;
+import sonia.scm.util.AssertUtil;
 
 //~--- JDK imports ------------------------------------------------------------
 
@@ -87,6 +88,37 @@ public class SvnRepositoryHandler
 
   //~--- get methods ----------------------------------------------------------
 
+  /**
+   * Method description
+   *
+   *
+   * @param repository
+   *
+   * @return
+   */
+  @Override
+  public ChangesetViewer getChangesetViewer(Repository repository)
+  {
+    SvnChangesetViewer changesetViewer = null;
+
+    AssertUtil.assertIsNotNull(repository);
+
+    String type = repository.getType();
+
+    AssertUtil.assertIsNotEmpty(type);
+
+    if (TYPE_NAME.equals(type))
+    {
+      changesetViewer = new SvnChangesetViewer(this, repository);
+    }
+    else
+    {
+      throw new IllegalArgumentException("mercurial repository is required");
+    }
+
+    return changesetViewer;
+  }
+
   /**
    * Method description
    *