Add compress fix.

wise-webapp/src/main/java/com/wisemapping/dao/MindmapManager.java

@@ -20,8 +20,8 @@ package com.wisemapping.dao;
 
 import com.wisemapping.model.*;
 import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
 
+import java.io.IOException;
 import java.util.List;
 
 public interface MindmapManager {
@@ -67,5 +67,5 @@ public interface MindmapManager {
 
     void updateCollaboration(@NotNull Collaboration collaboration);
 
-    void purgeHistory(int mapId);
+    void purgeHistory(int mapId) throws IOException;
 }

wise-webapp/src/main/java/com/wisemapping/dao/MindmapManagerImpl.java

@@ -19,6 +19,7 @@
 package com.wisemapping.dao;
 
 import com.wisemapping.model.*;
+import com.wisemapping.util.ZipUtils;
 import org.jetbrains.annotations.NotNull;
 import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
 import org.hibernate.criterion.Restrictions;
@@ -75,7 +76,7 @@ public class MindmapManagerImpl
     }
 
     @Override
-    public void purgeHistory(int mapId) {
+    public void purgeHistory(int mapId) throws IOException {
         final Criteria hibernateCriteria = getSession().createCriteria(MindMapHistory.class);
         hibernateCriteria.add(Restrictions.eq("mindmapId", mapId));
         hibernateCriteria.addOrder(Order.desc("creationTime"));
@@ -89,6 +90,14 @@ public class MindmapManagerImpl
         // If the map has not been modified in the last months, it means that I don't need to keep all the history ...
         int max = mindmapById.getLastModificationTime().before(yearAgo) ? 10 : 25;
 
+        for (MindMapHistory history : historyList) {
+            byte[] zippedXml = history.getZippedXml();
+            if(new String(zippedXml).startsWith("<map")){
+                history.setZippedXml(ZipUtils.bytesToZip(zippedXml));
+                getHibernateTemplate().update(history);
+            }
+        }
+
         if (historyList.size() > max) {
             for (int i = max; i < historyList.size(); i++) {
                 getHibernateTemplate().delete(historyList.get(i));

wise-webapp/src/main/java/com/wisemapping/model/MindMapHistory.java

@@ -19,6 +19,7 @@
 package com.wisemapping.model;
 
 import com.wisemapping.util.ZipUtils;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.io.IOException;
@@ -52,6 +53,7 @@ public class MindMapHistory {
         this.mindmapId = id;
     }
 
+    @NotNull
     public Calendar getCreationTime() {
         return creationTime;
     }

wise-webapp/src/main/java/com/wisemapping/rest/AdminController.java

@@ -19,10 +19,7 @@
 package com.wisemapping.rest;
 
 import com.wisemapping.exceptions.WiseMappingException;
-import com.wisemapping.model.AuthenticationType;
+import com.wisemapping.model.*;
-import com.wisemapping.model.Collaboration;
-import com.wisemapping.model.Mindmap;
-import com.wisemapping.model.User;
 import com.wisemapping.rest.model.RestUser;
 import com.wisemapping.service.MindmapService;
 import com.wisemapping.service.UserService;
@@ -176,13 +173,15 @@ public class AdminController extends BaseController {
                 e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
             } catch (RuntimeException e) {
                 e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
+            } catch (IOException e) {
+                e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
             }
         }
     }
 
     @ResponseStatus(value = HttpStatus.NO_CONTENT)
     @RequestMapping(method = RequestMethod.GET, value = "admin/database/purge/history")
-    public void purgeHistory(@RequestParam(required = true) Integer mapId) throws WiseMappingException, UnsupportedEncodingException {
+    public void purgeHistory(@RequestParam(required = true) Integer mapId) throws WiseMappingException, IOException {
 
         mindmapService.purgeHistory(mapId);
     }

wise-webapp/src/main/java/com/wisemapping/service/MindmapService.java

@@ -68,5 +68,5 @@ public interface MindmapService {
 
     boolean isAdmin(@Nullable User user);
 
-    void purgeHistory(int mapId);
+    void purgeHistory(int mapId) throws IOException;
 }

wise-webapp/src/main/java/com/wisemapping/service/MindmapServiceImpl.java

@@ -83,7 +83,7 @@ public class MindmapServiceImpl
     }
 
     @Override
-    public void purgeHistory(int mapId) {
+    public void purgeHistory(int mapId) throws IOException {
         mindmapManager.purgeHistory(mapId);
     }
 

wise-webapp/src/main/resources/com/wisemapping/model/MindMapHistory.hbm.xml

@@ -11,7 +11,7 @@
         </id>
 
         <property name="mindmapId" column="mindmap_id"/>
-        <property name="zippedXml" column="xml"/>
+        <property name="zippedXml" column="xml" lazy="true"/>
         <property name="creationTime" column="creation_date"/>
         <many-to-one name="editor" column="editor_id" unique="false" not-null="false" lazy="proxy"/>
     </class>