0014859: Add feature for REST delete request to select entities via HQL in URI instead of xml-document in request body

diff --git a/src/org/openbravo/dal/service/OBQuery.java b/src/org/openbravo/dal/service/OBQuery.java
--- a/src/org/openbravo/dal/service/OBQuery.java
+++ b/src/org/openbravo/dal/service/OBQuery.java
@@ -158,6 +158,27 @@
     return qryStr;
   }
 
+  public Query deleteQuery(){
+    final String qryStr = createQueryString();
+    String whereClause;
+    final int whereIndex = qryStr.toLowerCase().indexOf(WHERE);
+
+    if (whereIndex != -1) {
+      whereClause = qryStr.substring(whereIndex );
+    }
+    else {
+      throw new OBException("Exception when creating delete query " + qryStr);
+    }
+    
+    try {
+      final Query qry = getSession().createQuery("DELETE FROM "+getEntity().getName() + " " + whereClause);
+      setParameters(qry);
+      return qry;
+    } catch (final Exception e) {
+      throw new OBException("Exception when creating delete query " + "DELETE FROM "+getEntity().getName() + " " + whereClause, e);
+    }    
+  }
+
   /**
    * Creates a Hibernate Query object using the whereclause and extra filters (for readable
    * organizations etc.).
diff --git a/src/org/openbravo/service/rest/DalWebService.java b/src/org/openbravo/service/rest/DalWebService.java
--- a/src/org/openbravo/service/rest/DalWebService.java
+++ b/src/org/openbravo/service/rest/DalWebService.java
@@ -290,6 +290,42 @@
       return;
     }
 
+  if(segments.length == 1) 
+  {
+    final String entityName = segments[0];
+    
+    try {
+      ModelProvider.getInstance().getEntity(entityName);
+    } catch (final CheckException ce) {
+      throw new ResourceNotFoundException("Resource " + entityName + " not found", ce);
+    }
+
+    final String where = request.getParameter(PARAMETER_WHERE);    
+    String whereOrderByClause = "";
+    if (where != null) {
+      whereOrderByClause += where;
+    }
+
+
+    try {
+      final OBQuery<BaseOBObject> obq = OBDal.getInstance().createQuery(entityName,
+        whereOrderByClause);
+
+      Object o=obq.deleteQuery().executeUpdate();
+      
+      final String resultXml = WebServiceUtil.getInstance().createResultXMLWithLogWarning(
+          "Action performed successfully", "Removed business objects " + o, null);
+        response.setContentType("text/xml;charset=UTF-8");
+        final Writer w = response.getWriter();
+        w.write(resultXml);
+        w.close();
+    } catch (final Exception e) {
+        throw new OBException(e);
+    }
+
+    return;
+  }
+
     // use the content of the request
     doChangeAction(path, request, response, ChangeAction.DELETE);
   }