[ONOS-3113] Web Resource for Flow classifier in SFC
Change-Id: Id5e3a85883e8fb682bb43c45400860a3b07d05fe
diff --git a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/FlowClassifierWebResource.java b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/FlowClassifierWebResource.java
new file mode 100644
index 0000000..1450e4e
--- /dev/null
+++ b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/FlowClassifierWebResource.java
@@ -0,0 +1,192 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.vtnweb.resources;
+
+import static javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR;
+import static org.onlab.util.Tools.nullIsNotFound;
+import static javax.ws.rs.core.Response.Status.NOT_FOUND;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.UUID;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DELETE;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+import org.onosproject.vtnrsc.FlowClassifier;
+import org.onosproject.vtnrsc.FlowClassifierId;
+import org.onosproject.rest.AbstractWebResource;
+import org.onosproject.vtnrsc.flowClassifier.FlowClassifierService;
+import org.onosproject.vtnrsc.web.FlowClassifierCodec;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+/**
+ * Query and program flow classifier.
+ */
+@Path("flow_classifiers")
+public class FlowClassifierWebResource extends AbstractWebResource {
+
+ final FlowClassifierService service = get(FlowClassifierService.class);
+ final ObjectNode root = mapper().createObjectNode();
+ public static final String FLOW_CLASSIFIER_NOT_FOUND = "Flow classifier not found";
+
+ /**
+ * Get all flow classifiers created. Returns list of all flow classifiers
+ * created.
+ *
+ * @return 200 OK
+ */
+ @GET
+ @Produces(MediaType.APPLICATION_JSON)
+ public Response getFlowClassifiers() {
+ Iterable<FlowClassifier> flowClassifiers = service.getFlowClassifiers();
+ ObjectNode result = new ObjectMapper().createObjectNode();
+ result.set("flow_classifiers", new FlowClassifierCodec().encode(flowClassifiers, this));
+ return ok(result.toString()).build();
+ }
+
+ /**
+ * Get details of a flow classifier. Returns details of a specified flow
+ * classifier id.
+ *
+ * @param id flow classifier id
+ * @return 200 OK
+ */
+ @GET
+ @Path("{flow_id}")
+ @Produces(MediaType.APPLICATION_JSON)
+ public Response getFlowClassifier(@PathParam("flow_id") String id) {
+
+ if (!service.hasFlowClassifier(FlowClassifierId.flowClassifierId(UUID.fromString(id)))) {
+ return Response.status(NOT_FOUND).entity(FLOW_CLASSIFIER_NOT_FOUND).build();
+ }
+ FlowClassifier flowClassifier = nullIsNotFound(
+ service.getFlowClassifier(FlowClassifierId.flowClassifierId(UUID.fromString(id))),
+ FLOW_CLASSIFIER_NOT_FOUND);
+
+ ObjectNode result = new ObjectMapper().createObjectNode();
+ result.set("flow_classifier", new FlowClassifierCodec().encode(flowClassifier, this));
+ return ok(result.toString()).build();
+ }
+
+ /**
+ * Creates and stores a new flow classifier.
+ *
+ * @param flowClassifierId flow classifier identifier
+ * @param stream flow classifier from JSON
+ * @return status of the request - CREATED if the JSON is correct,
+ * BAD_REQUEST if the JSON is invalid
+ */
+ @POST
+ @Path("{flow_id}")
+ @Consumes(MediaType.APPLICATION_JSON)
+ @Produces(MediaType.APPLICATION_JSON)
+ public Response createFlowClassifier(@PathParam("flow_id") String flowClassifierId, InputStream stream) {
+ URI location;
+ try {
+ ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream);
+
+ FlowClassifier flowClassifier = codec(FlowClassifier.class).decode(jsonTree, this);
+ service.createFlowClassifier(flowClassifier);
+ location = new URI(flowClassifierId);
+ } catch (IOException | URISyntaxException ex) {
+ throw new IllegalArgumentException(ex);
+ }
+ return Response.created(location).build();
+ }
+
+ /**
+ * Creates and stores a new flow classifier.
+ *
+ * @param stream flow classifier from JSON
+ * @return status of the request - CREATED if the JSON is correct,
+ * BAD_REQUEST if the JSON is invalid
+ */
+ @POST
+ @Consumes(MediaType.APPLICATION_JSON)
+ @Produces(MediaType.APPLICATION_JSON)
+ public Response createFlowClassifier(InputStream stream) {
+ URI location;
+ try {
+ ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream);
+
+ FlowClassifier flowClassifier = codec(FlowClassifier.class).decode(jsonTree, this);
+ service.createFlowClassifier(flowClassifier);
+ location = new URI(flowClassifier.flowClassifierId().toString());
+ } catch (IOException | URISyntaxException ex) {
+ throw new IllegalArgumentException(ex);
+ }
+ return Response.created(location).build();
+ }
+
+ /**
+ * Update details of a flow classifier. Update details of a specified flow
+ * classifier id.
+ *
+ * @param id flow classifier id
+ * @param stream InputStream
+ * @return 200 OK
+ */
+ @PUT
+ @Path("{flow_id}")
+ @Produces(MediaType.APPLICATION_JSON)
+ @Consumes(MediaType.APPLICATION_JSON)
+ public Response updateFlowClassifier(@PathParam("flow_id") String id, final InputStream stream) {
+ try {
+ ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream);
+ FlowClassifier flowClassifier = codec(FlowClassifier.class).decode(jsonTree, this);
+ Boolean result = nullIsNotFound(service.updateFlowClassifier(flowClassifier), FLOW_CLASSIFIER_NOT_FOUND);
+ if (!result) {
+ return Response.status(204).entity(FLOW_CLASSIFIER_NOT_FOUND).build();
+ }
+ return Response.status(203).entity(result.toString()).build();
+ } catch (Exception e) {
+ return Response.status(INTERNAL_SERVER_ERROR).entity(e.toString()).build();
+ }
+ }
+
+ /**
+ * Delete details of a flow classifier. Delete details of a specified flow
+ * classifier id.
+ *
+ * @param id flow classifier id
+ * @return 200 OK
+ * @throws IOException when input doesn't match.
+ */
+ @Path("{flow_id}")
+ @DELETE
+ public Response deleteFlowClassifier(@PathParam("flow_id") String id) throws IOException {
+ try {
+ FlowClassifierId flowClassifierId = FlowClassifierId.flowClassifierId(UUID.fromString(id));
+ service.removeFlowClassifier(flowClassifierId);
+ return Response.status(201).entity("SUCCESS").build();
+ } catch (Exception e) {
+ return Response.status(INTERNAL_SERVER_ERROR).entity(e.toString()).build();
+ }
+ }
+}