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[Branch ~dhis2-devs-core/dhis2/trunk] Rev 21808: wip, new metadata export service + controller, uses nodes as export mechanism

 

------------------------------------------------------------
revno: 21808
committer: Morten Olav Hansen <mortenoh@xxxxxxxxx>
branch nick: dhis2
timestamp: Mon 2016-01-25 15:31:37 +0700
message:
  wip, new metadata export service + controller, uses nodes as export mechanism
added:
  dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/
  dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/DefaultMetadataExportService.java
  dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportException.java
  dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportParams.java
  dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportService.java
  dhis-2/dhis-services/dhis-service-dxf2/src/test/java/org/hisp/dhis/dxf2/metadata2/
  dhis-2/dhis-services/dhis-service-dxf2/src/test/java/org/hisp/dhis/dxf2/metadata2/MetadataExportServiceTest.java
  dhis-2/dhis-web/dhis-web-api/src/main/java/org/hisp/dhis/webapi/controller/metadata/MetadataExportController.java
modified:
  dhis-2/dhis-services/dhis-service-dxf2/src/main/resources/META-INF/dhis/beans.xml


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=== added directory 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2'
=== added file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/DefaultMetadataExportService.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/DefaultMetadataExportService.java	1970-01-01 00:00:00 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/DefaultMetadataExportService.java	2016-01-25 08:31:37 +0000
@@ -0,0 +1,84 @@
+package org.hisp.dhis.dxf2.metadata2;
+
+/*
+ * Copyright (c) 2004-2016, University of Oslo
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 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.
+ * Neither the name of the HISP project 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 COPYRIGHT OWNER 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.
+ */
+
+import org.hisp.dhis.common.IdentifiableObject;
+import org.hisp.dhis.query.Query;
+import org.hisp.dhis.query.QueryService;
+import org.hisp.dhis.schema.Schema;
+import org.hisp.dhis.schema.SchemaService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author Morten Olav Hansen <mortenoh@xxxxxxxxx>
+ */
+@Component
+public class DefaultMetadataExportService implements MetadataExportService
+{
+    @Autowired
+    private SchemaService schemaService;
+
+    @Autowired
+    private QueryService queryService;
+
+    @Override
+    @SuppressWarnings( "unchecked" )
+    public Map<Class<? extends IdentifiableObject>, List<? extends IdentifiableObject>> getMetadata( MetadataExportParams params )
+    {
+        Map<Class<? extends IdentifiableObject>, List<? extends IdentifiableObject>> metadata = new HashMap<>();
+
+        if ( params.getClasses().isEmpty() )
+        {
+            schemaService.getMetadataSchemas().stream().filter( Schema::isIdentifiableObject )
+                .forEach( schema -> params.getClasses().add( (Class<? extends IdentifiableObject>) schema.getKlass() ) );
+        }
+
+        for ( Class<? extends IdentifiableObject> klass : params.getClasses() )
+        {
+            Schema schema = schemaService.getDynamicSchema( klass );
+            Query query = Query.from( schema );
+
+            List<? extends IdentifiableObject> objects = queryService.query( query );
+            metadata.put( klass, objects );
+        }
+
+        return metadata;
+    }
+
+    @Override
+    public void validate( MetadataExportParams params ) throws MetadataExportException
+    {
+
+    }
+}

=== added file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportException.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportException.java	1970-01-01 00:00:00 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportException.java	2016-01-25 08:31:37 +0000
@@ -0,0 +1,41 @@
+package org.hisp.dhis.dxf2.metadata2;
+
+/*
+ * Copyright (c) 2004-2016, University of Oslo
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 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.
+ * Neither the name of the HISP project 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 COPYRIGHT OWNER 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.
+ */
+
+/**
+ * @author Morten Olav Hansen <mortenoh@xxxxxxxxx>
+ */
+public class MetadataExportException
+    extends RuntimeException
+{
+    public MetadataExportException( String message )
+    {
+        super( message );
+    }
+}

=== added file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportParams.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportParams.java	1970-01-01 00:00:00 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportParams.java	2016-01-25 08:31:37 +0000
@@ -0,0 +1,56 @@
+package org.hisp.dhis.dxf2.metadata2;
+
+/*
+ * Copyright (c) 2004-2016, University of Oslo
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 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.
+ * Neither the name of the HISP project 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 COPYRIGHT OWNER 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.
+ */
+
+import org.hisp.dhis.common.IdentifiableObject;
+
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * @author Morten Olav Hansen <mortenoh@xxxxxxxxx>
+ */
+public class MetadataExportParams
+{
+    private Set<Class<? extends IdentifiableObject>> classes = new HashSet<>();
+
+    public MetadataExportParams()
+    {
+    }
+
+    public Set<Class<? extends IdentifiableObject>> getClasses()
+    {
+        return classes;
+    }
+
+    public void setClasses( Set<Class<? extends IdentifiableObject>> classes )
+    {
+        this.classes = classes;
+    }
+}

=== added file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportService.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportService.java	1970-01-01 00:00:00 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata2/MetadataExportService.java	2016-01-25 08:31:37 +0000
@@ -0,0 +1,44 @@
+package org.hisp.dhis.dxf2.metadata2;
+
+/*
+ * Copyright (c) 2004-2016, University of Oslo
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 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.
+ * Neither the name of the HISP project 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 COPYRIGHT OWNER 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.
+ */
+
+import org.hisp.dhis.common.IdentifiableObject;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author Morten Olav Hansen <mortenoh@xxxxxxxxx>
+ */
+public interface MetadataExportService
+{
+    Map<Class<? extends IdentifiableObject>, List<? extends IdentifiableObject>> getMetadata( MetadataExportParams params );
+
+    void validate( MetadataExportParams params ) throws MetadataExportException;
+}

=== modified file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/resources/META-INF/dhis/beans.xml'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/resources/META-INF/dhis/beans.xml	2016-01-14 23:58:13 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/resources/META-INF/dhis/beans.xml	2016-01-25 08:31:37 +0000
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xmlns="http://www.springframework.org/schema/beans";
-  xmlns:aop="http://www.springframework.org/schema/aop";
+  xmlns:aop="http://www.springframework.org/schema/aop"; xmlns:context="http://www.springframework.org/schema/context";
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
-  http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd";>
+  http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd";>
+
+  <context:component-scan base-package="org.hisp.dhis.dxf2.metadata2" />
 
   <bean id="org.hisp.dhis.dxf2.metadata.MergeService" class="org.hisp.dhis.dxf2.metadata.DefaultMergeService" />
 

=== added directory 'dhis-2/dhis-services/dhis-service-dxf2/src/test/java/org/hisp/dhis/dxf2/metadata2'
=== added file 'dhis-2/dhis-services/dhis-service-dxf2/src/test/java/org/hisp/dhis/dxf2/metadata2/MetadataExportServiceTest.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/test/java/org/hisp/dhis/dxf2/metadata2/MetadataExportServiceTest.java	1970-01-01 00:00:00 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/test/java/org/hisp/dhis/dxf2/metadata2/MetadataExportServiceTest.java	2016-01-25 08:31:37 +0000
@@ -0,0 +1,94 @@
+package org.hisp.dhis.dxf2.metadata2;
+
+/*
+ * Copyright (c) 2004-2016, University of Oslo
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 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.
+ * Neither the name of the HISP project 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 COPYRIGHT OWNER 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.
+ */
+
+import org.hisp.dhis.DhisSpringTest;
+import org.hisp.dhis.common.IdentifiableObject;
+import org.hisp.dhis.common.IdentifiableObjectManager;
+import org.hisp.dhis.dataelement.DataElement;
+import org.hisp.dhis.dataelement.DataElementGroup;
+import org.hisp.dhis.user.User;
+import org.junit.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * @author Morten Olav Hansen <mortenoh@xxxxxxxxx>
+ */
+public class MetadataExportServiceTest
+    extends DhisSpringTest
+{
+    @Autowired
+    private MetadataExportService metadataExportService;
+
+    @Autowired
+    private IdentifiableObjectManager manager;
+
+    @Test
+    public void testValidate()
+    {
+        MetadataExportParams params = new MetadataExportParams();
+        metadataExportService.validate( params );
+    }
+
+    @Test
+    @SuppressWarnings( "unchecked" )
+    public void testMetadataExport()
+    {
+        DataElementGroup deg1 = createDataElementGroup( 'A' );
+        DataElement de1 = createDataElement( 'A' );
+        DataElement de2 = createDataElement( 'B' );
+        DataElement de3 = createDataElement( 'C' );
+
+        manager.save( de1 );
+        manager.save( de2 );
+        manager.save( de3 );
+
+        User user = createUser( 'A' );
+        manager.save( user );
+
+        deg1.addDataElement( de1 );
+        deg1.addDataElement( de2 );
+        deg1.addDataElement( de3 );
+
+        deg1.setUser( user );
+        manager.save( deg1 );
+
+        MetadataExportParams params = new MetadataExportParams();
+        Map<Class<? extends IdentifiableObject>, List<? extends IdentifiableObject>> metadata = metadataExportService.getMetadata( params );
+
+        assertEquals( 1, metadata.get( User.class ).size() );
+        assertEquals( 1, metadata.get( DataElementGroup.class ).size() );
+        assertEquals( 3, metadata.get( DataElement.class ).size() );
+    }
+}

=== added file 'dhis-2/dhis-web/dhis-web-api/src/main/java/org/hisp/dhis/webapi/controller/metadata/MetadataExportController.java'
--- dhis-2/dhis-web/dhis-web-api/src/main/java/org/hisp/dhis/webapi/controller/metadata/MetadataExportController.java	1970-01-01 00:00:00 +0000
+++ dhis-2/dhis-web/dhis-web-api/src/main/java/org/hisp/dhis/webapi/controller/metadata/MetadataExportController.java	2016-01-25 08:31:37 +0000
@@ -0,0 +1,86 @@
+package org.hisp.dhis.webapi.controller.metadata;
+
+/*
+ * Copyright (c) 2004-2016, University of Oslo
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 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.
+ * Neither the name of the HISP project 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 COPYRIGHT OWNER 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.
+ */
+
+import com.google.common.collect.Lists;
+import org.hisp.dhis.common.IdentifiableObject;
+import org.hisp.dhis.dxf2.metadata2.MetadataExportParams;
+import org.hisp.dhis.dxf2.metadata2.MetadataExportService;
+import org.hisp.dhis.fieldfilter.DefaultFieldFilterService;
+import org.hisp.dhis.node.NodeUtils;
+import org.hisp.dhis.node.types.CollectionNode;
+import org.hisp.dhis.node.types.RootNode;
+import org.hisp.dhis.node.types.SimpleNode;
+import org.hisp.dhis.schema.Schema;
+import org.hisp.dhis.schema.SchemaService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+import java.util.Date;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author Morten Olav Hansen <mortenoh@xxxxxxxxx>
+ */
+@Controller
+@RequestMapping( "/metadata/export" )
+public class MetadataExportController
+{
+    @Autowired
+    private MetadataExportService metadataExportService;
+
+    @Autowired
+    private SchemaService schemaService;
+
+    @Autowired
+    private DefaultFieldFilterService fieldFilterService;
+
+    @RequestMapping( value = "", method = RequestMethod.GET )
+    public @ResponseBody RootNode getMetadata()
+    {
+        RootNode rootNode = NodeUtils.createMetadata();
+        rootNode.addChild( new SimpleNode( "date", new Date(), true ) );
+
+        MetadataExportParams params = new MetadataExportParams();
+        Map<Class<? extends IdentifiableObject>, List<? extends IdentifiableObject>> metadata = metadataExportService.getMetadata( params );
+
+        for ( Class<? extends IdentifiableObject> klass : metadata.keySet() )
+        {
+            Schema schema = schemaService.getDynamicSchema( klass );
+            CollectionNode collectionNode = fieldFilterService.filter( klass, metadata.get( klass ), Lists.newArrayList( ":owner" ) );
+            rootNode.addChild( collectionNode );
+        }
+
+        return rootNode;
+    }
+}