[ONOS-3112] Web resource for Port Chain in SFC
Change-Id: Idc3bc7e2789923459b58fa400a1e97a1f7b78a88
diff --git a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/PortChainWebResource.java b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/PortChainWebResource.java
new file mode 100644
index 0000000..915eda5
--- /dev/null
+++ b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/resources/PortChainWebResource.java
@@ -0,0 +1,157 @@
+/*
+ * Copyright 2014-2015 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.NOT_FOUND;
+import static javax.ws.rs.core.Response.Status.OK;
+import static org.onlab.util.Tools.nullIsNotFound;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+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.rest.AbstractWebResource;
+import org.onosproject.vtnrsc.PortChain;
+import org.onosproject.vtnrsc.PortChainId;
+import org.onosproject.vtnrsc.portchain.PortChainService;
+import org.onosproject.vtnweb.web.PortChainCodec;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+/**
+ * Query and program port chain.
+ */
+
+@Path("port_chains")
+public class PortChainWebResource extends AbstractWebResource {
+
+ private final Logger log = LoggerFactory.getLogger(PortChainWebResource.class);
+ private final PortChainService service = get(PortChainService.class);
+ public static final String PORT_CHAIN_NOT_FOUND = "Port chain not found";
+ public static final String PORT_CHAIN_ID_EXIST = "Port chain exists";
+ public static final String PORT_CHAIN_ID_NOT_EXIST = "Port chain does not exist with identifier";
+
+ /**
+ * Get details of all port chains created.
+ *
+ * @return 200 OK
+ */
+ @GET
+ @Produces(MediaType.APPLICATION_JSON)
+ public Response getPortChains() {
+ Iterable<PortChain> portChains = service.getPortChains();
+ ObjectNode result = new ObjectMapper().createObjectNode();
+ result.set("port_chains", new PortChainCodec().encode(portChains, this));
+ return ok(result).build();
+ }
+
+ /**
+ * Get details of a specified port chain id.
+ *
+ * @param id port chain id
+ * @return 200 OK, 404 if given identifier does not exist
+ */
+ @GET
+ @Path("{chain_id}")
+ @Produces(MediaType.APPLICATION_JSON)
+ public Response getPortPain(@PathParam("chain_id") String id) {
+
+ if (!service.exists(PortChainId.portChainId(id))) {
+ return Response.status(NOT_FOUND).entity(PORT_CHAIN_NOT_FOUND).build();
+ }
+ PortChain portChain = nullIsNotFound(service.getPortChain(PortChainId.portChainId(id)),
+ PORT_CHAIN_NOT_FOUND);
+ ObjectNode result = new ObjectMapper().createObjectNode();
+ result.set("port_chain", new PortChainCodec().encode(portChain, this));
+ return ok(result).build();
+ }
+
+ /**
+ * Creates a new port chain.
+ *
+ * @param stream port chain 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 createPortChain(InputStream stream) {
+ try {
+ ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream);
+ PortChain portChain = codec(PortChain.class).decode(jsonTree, this);
+ Boolean issuccess = nullIsNotFound(service.createPortChain(portChain), PORT_CHAIN_NOT_FOUND);
+ return Response.status(OK).entity(issuccess.toString()).build();
+ } catch (IOException e) {
+ log.error("Exception while creating port chain {}.", e.toString());
+ throw new IllegalArgumentException(e);
+ }
+ }
+
+ /**
+ * Update details of a specified port chain id.
+ *
+ * @param id port chain id
+ * @param stream port chain json
+ * @return 200 OK, 404 if given identifier does not exist
+ */
+ @PUT
+ @Path("{chain_id}")
+ @Produces(MediaType.APPLICATION_JSON)
+ @Consumes(MediaType.APPLICATION_JSON)
+ public Response updatePortPain(@PathParam("chain_id") String id,
+ final InputStream stream) {
+ try {
+ ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream);
+ PortChain portChain = codec(PortChain.class).decode(jsonTree, this);
+ Boolean result = nullIsNotFound(service.updatePortChain(portChain), PORT_CHAIN_NOT_FOUND);
+ return Response.status(OK).entity(result.toString()).build();
+ } catch (IOException e) {
+ log.error("Update port chain failed because of exception {}.", e.toString());
+ throw new IllegalArgumentException(e);
+ }
+ }
+
+ /**
+ * Delete details of a specified port chain id.
+ *
+ * @param id port chain id
+ */
+ @Path("{chain_id}")
+ @DELETE
+ public void deletePortPain(@PathParam("chain_id") String id) {
+ log.debug("Deletes port chain by identifier {}.", id);
+ PortChainId portChainId = PortChainId.portChainId(id);
+
+ Boolean issuccess = nullIsNotFound(service.removePortChain(portChainId), PORT_CHAIN_NOT_FOUND);
+ if (!issuccess) {
+ log.debug("Port Chain identifier {} does not exist", id);
+ }
+ }
+}