Updated MapML Spring MessageConverter configuration to work properly …

…with Geoserver REST module's Spring configuration
geoserver · May 7, 2019 · eca5d44 · eca5d44
1 parent 6270dbe
commit eca5d44
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Showing 6 changed files with 64 additions and 21 deletions.
diff --git a/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLConstants.java b/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLConstants.java
@@ -5,12 +5,18 @@
 
 package org.geoserver.mapml;
 
+import java.nio.charset.Charset;
 import java.text.SimpleDateFormat;
+import org.springframework.http.MediaType;
 
 public final class MapMLConstants {
 
     /** format mime type */
-    public static final String MIME_TYPE = "text/mapml";
+    public static final String MAPML_MIME_TYPE = "text/mapml";
+
+    /** format MediaType */
+    public static final MediaType MAPML_MEDIA_TYPE =
+            new MediaType("text", "mapml", Charset.forName("UTF-8"));
 
     /** format name */
     public static final String FORMAT_NAME = "MAPML";

diff --git a/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLController.java b/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLController.java
@@ -71,7 +71,7 @@ public class MapMLController {
     @RequestMapping(
         value = "/{layer}/{proj}",
         method = {RequestMethod.GET, RequestMethod.POST},
-        produces = MIME_TYPE
+        produces = MAPML_MIME_TYPE
     )
     public Mapml mapML(
             HttpServletRequest request,
@@ -160,7 +160,7 @@ public Mapml mapML(
         metas.add(meta);
         meta = new Meta();
         meta.setHttpEquiv("Content-Type");
-        meta.setContent(MIME_TYPE + ";projection=" + projType.value());
+        meta.setContent(MAPML_MIME_TYPE + ";projection=" + projType.value());
         metas.add(meta);
         meta = new Meta();
         meta.setName("projection");

diff --git a/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLGetFeatureInfoOutputFormat.java b/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLGetFeatureInfoOutputFormat.java
@@ -40,7 +40,7 @@ public class MapMLGetFeatureInfoOutputFormat extends GetFeatureInfoOutputFormat
     private WMS wms;
 
     public MapMLGetFeatureInfoOutputFormat(WMS wms) {
-        super(MapMLConstants.MIME_TYPE);
+        super(MapMLConstants.MAPML_MIME_TYPE);
         this.wms = wms;
     }
 
@@ -80,7 +80,7 @@ public void write(
         metas.add(meta);
         meta = new Meta();
         meta.setHttpEquiv("Content-Type");
-        meta.setContent(MapMLConstants.MIME_TYPE); // ;projection=" + projType.value());
+        meta.setContent(MapMLConstants.MAPML_MIME_TYPE); // ;projection=" + projType.value());
         metas.add(meta);
         mapml.setHead(head);
 

diff --git a/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLGetFeatureOutputFormat.java b/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLGetFeatureOutputFormat.java
@@ -47,7 +47,7 @@ public MapMLGetFeatureOutputFormat(GeoServer gs) {
 
     @Override
     public String getMimeType(Object value, Operation operation) throws ServiceException {
-        return MapMLConstants.MIME_TYPE;
+        return MapMLConstants.MAPML_MIME_TYPE;
     }
 
     @Override
@@ -89,7 +89,7 @@ protected void write(
         metas.add(meta);
         meta = new Meta();
         meta.setHttpEquiv("Content-Type");
-        meta.setContent(MapMLConstants.MIME_TYPE); // ;projection=" + projType.value());
+        meta.setContent(MapMLConstants.MAPML_MIME_TYPE); // ;projection=" + projType.value());
         metas.add(meta);
         List<Link> links = head.getLinks();
 

diff --git a/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLMessageConverter.java b/src/community/mapml/src/main/java/org/geoserver/mapml/MapMLMessageConverter.java
@@ -0,0 +1,49 @@
+package org.geoserver.mapml;
+
+import java.io.IOException;
+import java.io.OutputStreamWriter;
+import java.io.UnsupportedEncodingException;
+import javax.xml.transform.Result;
+import javax.xml.transform.stream.StreamResult;
+import org.geoserver.rest.converters.BaseMessageConverter;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpOutputMessage;
+import org.springframework.http.MediaType;
+import org.springframework.lang.Nullable;
+import org.springframework.oxm.jaxb.Jaxb2Marshaller;
+
+public class MapMLMessageConverter extends BaseMessageConverter<Object> {
+
+    @Autowired private Jaxb2Marshaller mapmlMarshaller;
+
+    public MapMLMessageConverter() {
+        super(MapMLConstants.MAPML_MEDIA_TYPE);
+    }
+
+    @Override
+    public boolean canRead(Class<?> clazz, @Nullable MediaType mediaType) {
+        return false;
+    }
+
+    @Override
+    public boolean canWrite(Class<?> clazz, @Nullable MediaType mediaType) {
+        return (canWrite(mediaType) && mapmlMarshaller.supports(clazz));
+    }
+
+    @Override
+    protected boolean supports(Class<?> clazz) {
+        // should not be called, since we override canRead()/canWrite()
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    protected void writeInternal(Object o, HttpOutputMessage outputMessage)
+            throws UnsupportedEncodingException, IOException {
+        OutputStreamWriter osw =
+                new OutputStreamWriter(
+                        outputMessage.getBody(), geoServer.getSettings().getCharset());
+        Result result = new StreamResult(osw);
+        mapmlMarshaller.marshal(o, result);
+        osw.flush();
+    }
+}
diff --git a/src/community/mapml/src/main/resources/applicationContext.xml b/src/community/mapml/src/main/resources/applicationContext.xml
@@ -27,19 +27,7 @@
   <bean id="wmsGetFeatureInfoMapML" class="org.geoserver.mapml.MapMLGetFeatureInfoOutputFormat">
     <constructor-arg ref="wms"/>
   </bean>
-  <mvc:annotation-driven>
-    <mvc:message-converters>
-      <bean class="org.springframework.http.converter.xml.MarshallingHttpMessageConverter">
-        <property name="marshaller" ref="mapmlMarshaller"></property>
-        <property name="unmarshaller" ref="mapmlMarshaller"></property>
-        <property name="supportedMediaTypes">
-          <list>
-            <value>text/mapml</value>
-          </list>
-        </property>
-      </bean>
-    </mvc:message-converters>
-  </mvc:annotation-driven>
+  <bean class="org.geoserver.mapml.MapMLMessageConverter" id="mapmlMessageConverter"/>
   <bean class="org.springframework.oxm.jaxb.Jaxb2Marshaller" id="mapmlMarshaller">
     <property name="contextPath" value="org.geoserver.mapml.xml"/>
     <property name="marshallerProperties">
@@ -52,5 +40,5 @@
         </entry>
       </map>
     </property>
-    </bean>
+  </bean>
 </beans>