implementation and use of user and group dao

scm-backend-xml/src/main/java/sonia/scm/group/xml/XmlGroupDAO.java

@@ -0,0 +1,97 @@
+/**
+ * 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.group.xml;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+
+import sonia.scm.group.Group;
+import sonia.scm.group.GroupDAO;
+import sonia.scm.store.StoreFactory;
+import sonia.scm.xml.AbstractXmlDAO;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@Singleton
+public class XmlGroupDAO extends AbstractXmlDAO<Group, XmlGroupDatabase>
+        implements GroupDAO
+{
+
+  /** Field description */
+  public static final String STORE_NAME = "groups";
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param storeFactory
+   */
+  @Inject
+  public XmlGroupDAO(StoreFactory storeFactory)
+  {
+    super(storeFactory.getStore(XmlGroupDatabase.class, STORE_NAME));
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param group
+   *
+   * @return
+   */
+  @Override
+  protected Group clone(Group group)
+  {
+    return group.clone();
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  protected XmlGroupDatabase createNewDatabase()
+  {
+    return new XmlGroupDatabase();
+  }
+}

scm-backend-xml/src/main/java/sonia/scm/group/xml/XmlGroupDatabase.java

@@ -36,6 +36,7 @@ package sonia.scm.group.xml;
 //~--- non-JDK imports --------------------------------------------------------
 
 import sonia.scm.group.Group;
+import sonia.scm.xml.XmlDatabase;
 
 //~--- JDK imports ------------------------------------------------------------
 
@@ -55,7 +56,7 @@ import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
  */
 @XmlRootElement(name = "group-db")
 @XmlAccessorType(XmlAccessType.FIELD)
-public class XmlGroupDatabase
+public class XmlGroupDatabase implements XmlDatabase<Group>
 {
 
   /**
@@ -78,6 +79,7 @@ public class XmlGroupDatabase
    *
    * @param group
    */
+  @Override
   public void add(Group group)
   {
     groupMap.put(group.getName(), group);
@@ -91,6 +93,7 @@ public class XmlGroupDatabase
    *
    * @return
    */
+  @Override
   public boolean contains(String groupname)
   {
     return groupMap.containsKey(groupname);
@@ -104,6 +107,7 @@ public class XmlGroupDatabase
    *
    * @return
    */
+  @Override
   public Group remove(String groupname)
   {
     return groupMap.remove(groupname);
@@ -115,6 +119,7 @@ public class XmlGroupDatabase
    *
    * @return
    */
+  @Override
   public Collection<Group> values()
   {
     return groupMap.values();
@@ -130,6 +135,7 @@ public class XmlGroupDatabase
    *
    * @return
    */
+  @Override
   public Group get(String groupname)
   {
     return groupMap.get(groupname);
@@ -141,6 +147,7 @@ public class XmlGroupDatabase
    *
    * @return
    */
+  @Override
   public long getCreationTime()
   {
     return creationTime;
@@ -152,6 +159,7 @@ public class XmlGroupDatabase
    *
    * @return
    */
+  @Override
   public long getLastModified()
   {
     return lastModified;
@@ -165,6 +173,7 @@ public class XmlGroupDatabase
    *
    * @param creationTime
    */
+  @Override
   public void setCreationTime(long creationTime)
   {
     this.creationTime = creationTime;
@@ -176,6 +185,7 @@ public class XmlGroupDatabase
    *
    * @param lastModified
    */
+  @Override
   public void setLastModified(long lastModified)
   {
     this.lastModified = lastModified;

scm-backend-xml/src/main/java/sonia/scm/group/xml/XmlGroupManager.java

@@ -48,13 +48,12 @@ import sonia.scm.TransformFilter;
 import sonia.scm.group.AbstractGroupManager;
 import sonia.scm.group.Group;
 import sonia.scm.group.GroupAllreadyExistExeption;
+import sonia.scm.group.GroupDAO;
 import sonia.scm.group.GroupException;
 import sonia.scm.group.GroupListener;
 import sonia.scm.search.SearchRequest;
 import sonia.scm.search.SearchUtil;
 import sonia.scm.security.SecurityContext;
-import sonia.scm.store.Store;
-import sonia.scm.store.StoreFactory;
 import sonia.scm.util.CollectionAppender;
 import sonia.scm.util.SecurityUtil;
 import sonia.scm.util.Util;
@@ -79,12 +78,6 @@ import java.util.Set;
 public class XmlGroupManager extends AbstractGroupManager
 {
 
-  /** Field description */
-  public static final String STORE_NAME = "groups";
-
-  /** Field description */
-  public static final String TYPE = "xml";
-
   /** the logger for XmlGroupManager */
   private static final Logger logger =
     LoggerFactory.getLogger(XmlGroupManager.class);
@@ -96,16 +89,16 @@ public class XmlGroupManager extends AbstractGroupManager
    *
    *
    * @param securityContextProvider
-   * @param storeFactory
+   * @param groupDAO
    * @param groupListenerProvider
    */
   @Inject
   public XmlGroupManager(Provider<SecurityContext> securityContextProvider,
-                         StoreFactory storeFactory,
+                         GroupDAO groupDAO,
                          Provider<Set<GroupListener>> groupListenerProvider)
   {
     this.securityContextProvider = securityContextProvider;
-    this.store = storeFactory.getStore(XmlGroupDatabase.class, STORE_NAME);
+    this.groupDAO = groupDAO;
     this.groupListenerProvider = groupListenerProvider;
   }
 
@@ -144,7 +137,7 @@ public class XmlGroupManager extends AbstractGroupManager
 
     SecurityUtil.assertIsAdmin(securityContextProvider);
 
-    if (groupDB.contains(group.getName()))
+    if (groupDAO.contains(group.getName()))
     {
       throw new GroupAllreadyExistExeption();
     }
@@ -153,17 +146,11 @@ public class XmlGroupManager extends AbstractGroupManager
 
     if (Util.isEmpty(type))
     {
-      group.setType(TYPE);
+      group.setType(groupDAO.getType());
     }
 
     group.setCreationDate(System.currentTimeMillis());
-
-    synchronized (XmlGroupManager.class)
-    {
-      groupDB.add(group.clone());
-      storeDB();
-    }
-
+    groupDAO.add(group);
     fireEvent(group, HandlerEvent.CREATE);
   }
 
@@ -189,14 +176,9 @@ public class XmlGroupManager extends AbstractGroupManager
 
     String name = group.getName();
 
-    if (groupDB.contains(name))
+    if (groupDAO.contains(name))
     {
-      synchronized (XmlGroupManager.class)
-      {
-        groupDB.remove(name);
-        storeDB();
-      }
-
+      groupDAO.delete(group);
       fireEvent(group, HandlerEvent.DELETE);
     }
     else
@@ -214,13 +196,6 @@ public class XmlGroupManager extends AbstractGroupManager
   @Override
   public void init(SCMContextProvider context)
   {
-    groupDB = store.get();
-
-    if (groupDB == null)
-    {
-      groupDB = new XmlGroupDatabase();
-    }
-
     Set<GroupListener> listeners = groupListenerProvider.get();
 
     if (Util.isNotEmpty(listeners))
@@ -251,17 +226,10 @@ public class XmlGroupManager extends AbstractGroupManager
 
     String name = group.getName();
 
-    if (groupDB.contains(name))
+    if (groupDAO.contains(name))
     {
       group.setLastModified(System.currentTimeMillis());
-
-      synchronized (XmlGroupManager.class)
-      {
-        groupDB.remove(name);
-        groupDB.add(group.clone());
-        storeDB();
-      }
-
+      groupDAO.modify(group);
       fireEvent(group, HandlerEvent.MODIFY);
     }
     else
@@ -290,7 +258,7 @@ public class XmlGroupManager extends AbstractGroupManager
 
     SecurityUtil.assertIsAdmin(securityContextProvider);
 
-    Group fresh = groupDB.get(group.getName());
+    Group fresh = groupDAO.get(group.getName());
 
     if (fresh == null)
     {
@@ -316,7 +284,7 @@ public class XmlGroupManager extends AbstractGroupManager
       logger.debug("search group with query {}", searchRequest.getQuery());
     }
 
-    return SearchUtil.search(searchRequest, groupDB.values(),
+    return SearchUtil.search(searchRequest, groupDAO.getAll(),
                              new TransformFilter<Group>()
     {
       @Override
@@ -348,7 +316,7 @@ public class XmlGroupManager extends AbstractGroupManager
   @Override
   public Group get(String id)
   {
-    Group group = groupDB.get(id);
+    Group group = groupDAO.get(id);
 
     if (group != null)
     {
@@ -385,7 +353,7 @@ public class XmlGroupManager extends AbstractGroupManager
 
     List<Group> groups = new ArrayList<Group>();
 
-    for (Group group : groupDB.values())
+    for (Group group : groupDAO.getAll())
     {
       groups.add(group.clone());
     }
@@ -415,7 +383,7 @@ public class XmlGroupManager extends AbstractGroupManager
   {
     SecurityUtil.assertIsAdmin(securityContextProvider);
 
-    return Util.createSubCollection(groupDB.values(), comparator,
+    return Util.createSubCollection(groupDAO.getAll(), comparator,
                                     new CollectionAppender<Group>()
     {
       @Override
@@ -454,7 +422,7 @@ public class XmlGroupManager extends AbstractGroupManager
   {
     LinkedList<Group> groups = new LinkedList<Group>();
 
-    for (Group group : groupDB.values())
+    for (Group group : groupDAO.getAll())
     {
       if (group.isMember(member))
       {
@@ -474,32 +442,17 @@ public class XmlGroupManager extends AbstractGroupManager
   @Override
   public Long getLastModified()
   {
-    return groupDB.getLastModified();
-  }
-
-  //~--- methods --------------------------------------------------------------
-
-  /**
-   * Method description
-   *
-   */
-  private void storeDB()
-  {
-    groupDB.setLastModified(System.currentTimeMillis());
-    store.set(groupDB);
+    return groupDAO.getLastModified();
   }
 
   //~--- fields ---------------------------------------------------------------
 
   /** Field description */
-  private XmlGroupDatabase groupDB;
+  private GroupDAO groupDAO;
 
   /** Field description */
   private Provider<Set<GroupListener>> groupListenerProvider;
 
   /** Field description */
   private Provider<SecurityContext> securityContextProvider;
-
-  /** Field description */
-  private Store<XmlGroupDatabase> store;
 }

scm-backend-xml/src/main/java/sonia/scm/user/xml/XmlUserDAO.java

@@ -0,0 +1,97 @@
+/**
+ * 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.user.xml;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+
+import sonia.scm.store.StoreFactory;
+import sonia.scm.user.User;
+import sonia.scm.user.UserDAO;
+import sonia.scm.xml.AbstractXmlDAO;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@Singleton
+public class XmlUserDAO extends AbstractXmlDAO<User, XmlUserDatabase>
+        implements UserDAO
+{
+
+  /** Field description */
+  public static final String STORE_NAME = "users";
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param storeFactory
+   */
+  @Inject
+  public XmlUserDAO(StoreFactory storeFactory)
+  {
+    super(storeFactory.getStore(XmlUserDatabase.class, STORE_NAME));
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param user
+   *
+   * @return
+   */
+  @Override
+  protected User clone(User user)
+  {
+    return user.clone();
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  protected XmlUserDatabase createNewDatabase()
+  {
+    return new XmlUserDatabase();
+  }
+}

scm-backend-xml/src/main/java/sonia/scm/user/xml/XmlUserDatabase.java

@@ -36,6 +36,7 @@ package sonia.scm.user.xml;
 //~--- non-JDK imports --------------------------------------------------------
 
 import sonia.scm.user.User;
+import sonia.scm.xml.XmlDatabase;
 
 //~--- JDK imports ------------------------------------------------------------
 
@@ -55,7 +56,7 @@ import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
  */
 @XmlRootElement(name = "user-db")
 @XmlAccessorType(XmlAccessType.FIELD)
-public class XmlUserDatabase
+public class XmlUserDatabase implements XmlDatabase<User>
 {
 
   /**
@@ -78,6 +79,7 @@ public class XmlUserDatabase
    *
    * @param user
    */
+  @Override
   public void add(User user)
   {
     userMap.put(user.getName(), user);
@@ -91,6 +93,7 @@ public class XmlUserDatabase
    *
    * @return
    */
+  @Override
   public boolean contains(String username)
   {
     return userMap.containsKey(username);
@@ -104,6 +107,7 @@ public class XmlUserDatabase
    *
    * @return
    */
+  @Override
   public User remove(String username)
   {
     return userMap.remove(username);
@@ -115,6 +119,7 @@ public class XmlUserDatabase
    *
    * @return
    */
+  @Override
   public Collection<User> values()
   {
     return userMap.values();
@@ -130,6 +135,7 @@ public class XmlUserDatabase
    *
    * @return
    */
+  @Override
   public User get(String username)
   {
     return userMap.get(username);
@@ -141,6 +147,7 @@ public class XmlUserDatabase
    *
    * @return
    */
+  @Override
   public long getCreationTime()
   {
     return creationTime;
@@ -152,6 +159,7 @@ public class XmlUserDatabase
    *
    * @return
    */
+  @Override
   public long getLastModified()
   {
     return lastModified;
@@ -165,6 +173,7 @@ public class XmlUserDatabase
    *
    * @param creationTime
    */
+  @Override
   public void setCreationTime(long creationTime)
   {
     this.creationTime = creationTime;
@@ -176,6 +185,7 @@ public class XmlUserDatabase
    *
    * @param lastModified
    */
+  @Override
   public void setLastModified(long lastModified)
   {
     this.lastModified = lastModified;

scm-backend-xml/src/main/java/sonia/scm/user/xml/XmlUserManager.java

@@ -48,11 +48,10 @@ import sonia.scm.TransformFilter;
 import sonia.scm.search.SearchRequest;
 import sonia.scm.search.SearchUtil;
 import sonia.scm.security.ScmSecurityException;
-import sonia.scm.store.Store;
-import sonia.scm.store.StoreFactory;
 import sonia.scm.user.AbstractUserManager;
 import sonia.scm.user.User;
 import sonia.scm.user.UserAllreadyExistException;
+import sonia.scm.user.UserDAO;
 import sonia.scm.user.UserException;
 import sonia.scm.user.UserListener;
 import sonia.scm.util.AssertUtil;
@@ -96,9 +95,6 @@ public class XmlUserManager extends AbstractUserManager
   /** Field description */
   public static final String STORE_NAME = "users";
 
-  /** Field description */
-  public static final String TYPE = "xml";
-
   /** the logger for XmlUserManager */
   private static final Logger logger =
     LoggerFactory.getLogger(XmlUserManager.class);
@@ -110,16 +106,16 @@ public class XmlUserManager extends AbstractUserManager
    *
    *
    * @param scurityContextProvider
-   * @param storeFactory
+   * @param userDAO
    * @param userListenerProvider
    */
   @Inject
   public XmlUserManager(Provider<WebSecurityContext> scurityContextProvider,
-                        StoreFactory storeFactory,
+                        UserDAO userDAO,
                         Provider<Set<UserListener>> userListenerProvider)
   {
     this.scurityContextProvider = scurityContextProvider;
-    this.store = storeFactory.getStore(XmlUserDatabase.class, STORE_NAME);
+    this.userDAO = userDAO;
     this.userListenerProvider = userListenerProvider;
   }
 
@@ -149,7 +145,7 @@ public class XmlUserManager extends AbstractUserManager
   @Override
   public boolean contains(String username)
   {
-    return userDB.contains(username);
+    return userDAO.contains(username);
   }
 
   /**
@@ -176,7 +172,7 @@ public class XmlUserManager extends AbstractUserManager
       throw new ScmSecurityException("admin account is required");
     }
 
-    if (userDB.contains(user.getName()))
+    if (userDAO.contains(user.getName()))
     {
       throw new UserAllreadyExistException(user.getName());
     }
@@ -185,18 +181,12 @@ public class XmlUserManager extends AbstractUserManager
 
     if (Util.isEmpty(type))
     {
-      user.setType(TYPE);
+      user.setType(userDAO.getType());
     }
 
     AssertUtil.assertIsValid(user);
     user.setCreationDate(System.currentTimeMillis());
-
-    synchronized (XmlUserManager.class)
-    {
-      userDB.add(user.clone());
-      storeDB();
-    }
-
+    userDAO.add(user);
     fireEvent(user, HandlerEvent.CREATE);
   }
 
@@ -221,14 +211,9 @@ public class XmlUserManager extends AbstractUserManager
 
     String name = user.getName();
 
-    if (userDB.contains(name))
+    if (userDAO.contains(name))
     {
-      synchronized (XmlUserManager.class)
-      {
-        userDB.remove(name);
-        storeDB();
-      }
-
+      userDAO.delete(user);
       fireEvent(user, HandlerEvent.DELETE);
     }
     else
@@ -246,11 +231,10 @@ public class XmlUserManager extends AbstractUserManager
   @Override
   public void init(SCMContextProvider context)
   {
-    userDB = store.get();
 
-    if (userDB == null)
+    // TODO improve
+    if (!userDAO.contains("scmadmin") &&!userDAO.contains("anonymous"))
     {
-      userDB = new XmlUserDatabase();
       createDefaultAccounts();
     }
 
@@ -288,18 +272,11 @@ public class XmlUserManager extends AbstractUserManager
 
     String name = user.getName();
 
-    if (userDB.contains(name))
+    if (userDAO.contains(name))
     {
       AssertUtil.assertIsValid(user);
       user.setLastModified(System.currentTimeMillis());
-
-      synchronized (XmlUserManager.class)
-      {
-        userDB.remove(name);
-        userDB.add(user.clone());
-        storeDB();
-      }
-
+      userDAO.modify(user);
       fireEvent(user, HandlerEvent.MODIFY);
     }
     else
@@ -327,7 +304,7 @@ public class XmlUserManager extends AbstractUserManager
 
     SecurityUtil.assertIsAdmin(scurityContextProvider);
 
-    User fresh = userDB.get(user.getName());
+    User fresh = userDAO.get(user.getName());
 
     if (fresh == null)
     {
@@ -353,7 +330,7 @@ public class XmlUserManager extends AbstractUserManager
       logger.debug("search user with query {}", searchRequest.getQuery());
     }
 
-    return SearchUtil.search(searchRequest, userDB.values(),
+    return SearchUtil.search(searchRequest, userDAO.getAll(),
                              new TransformFilter<User>()
     {
       @Override
@@ -387,7 +364,7 @@ public class XmlUserManager extends AbstractUserManager
   {
 
     // SecurityUtil.assertIsAdmin(scurityContextProvider);
-    User user = userDB.get(id);
+    User user = userDAO.get(id);
 
     if (user != null)
     {
@@ -424,7 +401,7 @@ public class XmlUserManager extends AbstractUserManager
 
     List<User> users = new ArrayList<User>();
 
-    for (User user : userDB.values())
+    for (User user : userDAO.getAll())
     {
       users.add(user.clone());
     }
@@ -454,7 +431,7 @@ public class XmlUserManager extends AbstractUserManager
   {
     SecurityUtil.assertIsAdmin(scurityContextProvider);
 
-    return Util.createSubCollection(userDB.values(), comaparator,
+    return Util.createSubCollection(userDAO.getAll(), comaparator,
                                     new CollectionAppender<User>()
     {
       @Override
@@ -489,7 +466,7 @@ public class XmlUserManager extends AbstractUserManager
   @Override
   public Long getLastModified()
   {
-    return userDB.getLastModified();
+    return userDAO.getLastModified();
   }
 
   //~--- methods --------------------------------------------------------------
@@ -510,8 +487,7 @@ public class XmlUserManager extends AbstractUserManager
       User user = (User) unmarshaller.unmarshal(input);
 
       user.setCreationDate(System.currentTimeMillis());
-      userDB.add(user);
-      storeDB();
+      userDAO.add(user);
     }
     catch (Exception ex)
     {
@@ -543,26 +519,13 @@ public class XmlUserManager extends AbstractUserManager
     }
   }
 
-  /**
-   * Method description
-   *
-   */
-  private void storeDB()
-  {
-    userDB.setLastModified(System.currentTimeMillis());
-    store.set(userDB);
-  }
-
   //~--- fields ---------------------------------------------------------------
 
   /** Field description */
   private Provider<WebSecurityContext> scurityContextProvider;
 
   /** Field description */
-  private Store<XmlUserDatabase> store;
-
-  /** Field description */
-  private XmlUserDatabase userDB;
+  private UserDAO userDAO;
 
   /** Field description */
   private Provider<Set<UserListener>> userListenerProvider;

scm-backend-xml/src/main/java/sonia/scm/xml/AbstractXmlDAO.java

@@ -0,0 +1,294 @@
+/**
+ * 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.xml;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import sonia.scm.GenericDAO;
+import sonia.scm.ModelObject;
+import sonia.scm.group.xml.XmlGroupDAO;
+import sonia.scm.store.Store;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.util.Collection;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ *
+ * @param <I>
+ * @param <T>
+ */
+public abstract class AbstractXmlDAO<I extends ModelObject,
+        T extends XmlDatabase<I>> implements GenericDAO<I>
+{
+
+  /** Field description */
+  public static final String TYPE = "xml";
+
+  /**
+   * the logger for XmlGroupDAO
+   */
+  private static final Logger logger =
+    LoggerFactory.getLogger(XmlGroupDAO.class);
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   *
+   * @param store
+   */
+  public AbstractXmlDAO(Store<T> store)
+  {
+    this.store = store;
+    db = store.get();
+
+    if (db == null)
+    {
+      db = createNewDatabase();
+    }
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param item
+   *
+   * @return
+   */
+  protected abstract I clone(I item);
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  protected abstract T createNewDatabase();
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param item
+   */
+  @Override
+  public void add(I item)
+  {
+    if (logger.isTraceEnabled())
+    {
+      logger.trace("add item {} to xml backend", item.getId());
+    }
+
+    synchronized (store)
+    {
+      db.add(clone(item));
+      storeDB();
+    }
+  }
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param item
+   *
+   * @return
+   */
+  @Override
+  public boolean contains(I item)
+  {
+    return contains(item.getId());
+  }
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param id
+   *
+   * @return
+   */
+  @Override
+  public boolean contains(String id)
+  {
+    return db.contains(id);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param item
+   */
+  @Override
+  public void delete(I item)
+  {
+    if (logger.isTraceEnabled())
+    {
+      logger.trace("delete item {} from xml backend", item.getId());
+    }
+
+    synchronized (store)
+    {
+      db.remove(item.getId());
+      storeDB();
+    }
+  }
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param item
+   */
+  @Override
+  public void modify(I item)
+  {
+    if (logger.isTraceEnabled())
+    {
+      logger.trace("modify xml backend item {}", item.getId());
+    }
+
+    synchronized (store)
+    {
+      db.remove(item.getId());
+      db.add(clone(item));
+      storeDB();
+    }
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param id
+   *
+   * @return
+   */
+  @Override
+  public I get(String id)
+  {
+    return db.get(id);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public Collection<I> getAll()
+  {
+    return db.values();
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public Long getCreationTime()
+  {
+    return db.getCreationTime();
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public Long getLastModified()
+  {
+    return db.getLastModified();
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @Override
+  public String getType()
+  {
+    return TYPE;
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   */
+  private void storeDB()
+  {
+    if (logger.isTraceEnabled())
+    {
+      logger.trace("store xml database");
+    }
+
+    db.setLastModified(System.currentTimeMillis());
+    store.set(db);
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private final Store<T> store;
+
+  /** Field description */
+  private T db;
+}

scm-backend-xml/src/main/java/sonia/scm/xml/XmlDatabase.java

@@ -0,0 +1,132 @@
+/**
+ * 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.xml;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.util.Collection;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ *
+ * @param <T>
+ */
+public interface XmlDatabase<T>
+{
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param item
+   */
+  public void add(T item);
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param id
+   *
+   * @return
+   */
+  public boolean contains(String id);
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param id
+   *
+   * @return
+   */
+  public T remove(String id);
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public Collection<T> values();
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   *
+   * @param id
+   *
+   * @return
+   */
+  public T get(String id);
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public long getCreationTime();
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  public long getLastModified();
+
+  //~--- set methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param creationTime
+   */
+  public void setCreationTime(long creationTime);
+
+  /**
+   * Method description
+   *
+   *
+   * @param lastModified
+   */
+  public void setLastModified(long lastModified);
+}