Create error response for already existing entities

scm-webapp/src/main/java/sonia/scm/api/v2/NotFoundExceptionMapper.java

@@ -0,0 +1,51 @@
+/*
+  Copyright (c) 2014, Sebastian Sdorra All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+  1. Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer. 2. 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. 3. Neither the name of SCM-Manager;
+  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 REGENTS 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.
+
+  http://bitbucket.org/sdorra/scm-manager
+
+ */
+
+
+package sonia.scm.api.v2;
+
+
+import sonia.scm.NotFoundException;
+import sonia.scm.api.v2.resources.ErrorDto;
+import sonia.scm.web.VndMediaType;
+
+import javax.ws.rs.core.Response;
+import javax.ws.rs.ext.ExceptionMapper;
+import javax.ws.rs.ext.Provider;
+
+/**
+ * @since 2.0.0
+ */
+@Provider
+public class NotFoundExceptionMapper implements ExceptionMapper<NotFoundException> {
+  @Override
+  public Response toResponse(NotFoundException exception) {
+    return Response.status(Response.Status.NOT_FOUND).entity(ErrorDto.from(exception)).type(VndMediaType.ERROR_TYPE).build();
+  }
+}