Mindmap loading is lazy.

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

@@ -84,16 +84,17 @@ public class MindmapManagerImpl
 
         final List<MindMapHistory> historyList = hibernateCriteria.list();
 
-        final Mindmap mindmapById = this.getMindmapById(mapId);
+        final Mindmap mindmap = this.getMindmapById(mapId);
+        if (mindmap != null) {
             final Calendar yearAgo = Calendar.getInstance();
             yearAgo.add(Calendar.MONTH, -12);
 
             // 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;
+            int max = mindmap.getLastModificationTime().before(yearAgo) ? 10 : 25;
 
             for (MindMapHistory history : historyList) {
                 byte[] zippedXml = history.getZippedXml();
-            if(new String(zippedXml).startsWith("<map")){
+                if (new String(zippedXml).startsWith("<map")) {
                     history.setZippedXml(ZipUtils.bytesToZip(zippedXml));
                     getHibernateTemplate().update(history);
                 }
@@ -105,6 +106,7 @@ public class MindmapManagerImpl
                 }
             }
         }
+    }
 
     @Override
     public List<Mindmap> search(MindMapCriteria criteria, int maxResult) {

wise-webapp/src/main/java/com/wisemapping/exporter/FreemindExporter.java

@@ -57,7 +57,7 @@ public class FreemindExporter
     private Map<String, Node> nodesMap = null;
 
     public void export(Mindmap map, OutputStream outputStream) throws ExportException {
-        export(map.getXml(), outputStream);
+        export(map.getUnzipXml(), outputStream);
     }
 
     public void export(byte[] xml, @NotNull OutputStream outputStream) throws ExportException {

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

@@ -48,7 +48,7 @@ public class Mindmap {
     private User creator;
     private String tags;
     private String title;
-    private byte[] xml;
+    private byte[] zippedXml;
 
     //~ Constructors .........................................................................................
 
@@ -57,32 +57,30 @@ public class Mindmap {
 
     //~ Methods ..............................................................................................
 
-    public void setXml(byte[] xml) {
+    public void setUnzipXml(@NotNull byte[] value) {
-        this.xml = xml;
-    }
-
-    public void setXmlStr(@NotNull String xml)
-            throws IOException {
-        this.xml = xml.getBytes(UTF_8);
-    }
-
-    public byte[] getXml() {
-        return xml;
-    }
-
-    public String getXmlStr() throws UnsupportedEncodingException {
-        String result = null;
-        if (this.xml != null) {
-            result = new String(this.xml, UTF_8);
-        }
-        return result;
-    }
-
-    public byte[] getZippedXml(){
-        byte[] result = this.xml;
-        if (result != null) {
         try {
-                result = ZipUtils.bytesToZip(result);
+            final byte[] zip = ZipUtils.bytesToZip(value);
+            this.setZippedXml(zip);
+        } catch (IOException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    public void setXmlStr(@NotNull String xml) {
+        try {
+            this.setUnzipXml(xml.getBytes(UTF_8));
+        } catch (UnsupportedEncodingException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    @NotNull
+    public byte[] getUnzipXml() {
+        byte[] result = new byte[]{};
+        if (zippedXml != null) {
+            try {
+                final byte[] zip = this.getZippedXml();
+                result = ZipUtils.zipToBytes(zip);
             } catch (IOException e) {
                 throw new IllegalStateException(e);
             }
@@ -90,9 +88,18 @@ public class Mindmap {
         return result;
     }
 
-    public void setZippedXml(byte[] xml)
+    @NotNull
-            throws IOException {
+    public String getXmlStr() throws UnsupportedEncodingException {
-        this.xml = ZipUtils.zipToBytes(xml);
+        return new String(this.getUnzipXml(), UTF_8);
+    }
+
+    @NotNull
+    public byte[] getZippedXml() {
+        return zippedXml;
+    }
+
+    public void setZippedXml(@NotNull byte[] value) {
+        this.zippedXml = value;
     }
 
     public Set<Collaboration> getCollaborations() {
@@ -143,6 +150,7 @@ public class Mindmap {
         this.isPublic = isPublic;
     }
 
+    @NotNull
     public Calendar getLastModificationTime() {
         return lastModificationTime;
     }
@@ -282,7 +290,7 @@ public class Mindmap {
         final Mindmap result = new Mindmap();
         result.setDescription(this.getDescription());
         result.setTitle(this.getTitle());
-        result.setXml(this.getXml());
+        result.setUnzipXml(this.getUnzipXml());
         result.setTags(this.getTags());
 
         return result;

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

@@ -158,15 +158,10 @@ public class UserServiceImpl
 
         final String mapXml = VelocityEngineUtils.mergeTemplateIntoString(velocityEngine, "/samples/tutorial.vm", model);
 
-        try {
         result.setXmlStr(mapXml);
         result.setTitle(messageSource.getMessage("WELCOME", null, locale) + " " + firstName);
         result.setDescription("");
 
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-
         return result;
     }
 

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

@@ -12,7 +12,7 @@
         <property name="title"/>
         <property name="public"/>
         <property name="description"/>
-        <property name="zippedXml" column="XML"/>
+        <property name="zippedXml" column="XML" lazy="true"/>
         <property name="lastModificationTime" column="edition_date"/>
         <property name="creationTime" column="creation_date"/>
         <property name="tags" column="tags"/>

wise-webapp/src/test/java/com/wisemapping/test/export/ExportFreemindTest.java

@@ -47,7 +47,7 @@ public class ExportFreemindTest {
     private Mindmap load(@NotNull File wisemap) throws IOException {
         final byte[] recContent = FileUtils.readFileToByteArray(wisemap);
         final Mindmap result = new Mindmap();
-        result.setXml(recContent);
+        result.setUnzipXml(recContent);
         return result;
     }
 

wise-webapp/src/test/java/com/wisemapping/test/export/ExportXsltBasedTest.java

@@ -45,7 +45,7 @@ public class ExportXsltBasedTest {
     private Mindmap load(@NotNull File wisemap) throws IOException {
         final byte[] recContent = FileUtils.readFileToByteArray(wisemap);
         final Mindmap result = new Mindmap();
-        result.setXml(recContent);
+        result.setUnzipXml(recContent);
         return result;
     }