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/*
* 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.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.PortPair;
import org.onosproject.vtnrsc.PortPairId;
import org.onosproject.vtnrsc.portpair.PortPairService;
import org.onosproject.vtnweb.web.PortPairCodec;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
/**
* Query and program port pair.
*/
@Path("port_pairs")
public class PortPairWebResource extends AbstractWebResource {
private final Logger log = LoggerFactory.getLogger(PortPairWebResource.class);
private final PortPairService service = get(PortPairService.class);
public static final String PORT_PAIR_NOT_FOUND = "Port pair not found";
public static final String PORT_PAIR_ID_EXIST = "Port pair exists";
public static final String PORT_PAIR_ID_NOT_EXIST = "Port pair does not exist with identifier";
/**
* Get details of all port pairs created.
*
* @return 200 OK
*/
@GET
@Produces(MediaType.APPLICATION_JSON)
public Response getPortPairs() {
Iterable<PortPair> portPairs = service.getPortPairs();
ObjectNode result = new ObjectMapper().createObjectNode();
ArrayNode portPairEntry = result.putArray("port_pairs");
if (portPairs != null) {
for (final PortPair portPair : portPairs) {
portPairEntry.add(new PortPairCodec().encode(portPair, this));
}
}
return ok(result.toString()).build();
}
/**
* Get details of a specified port pair id.
*
* @param id port pair id
* @return 200 OK, 404 if given identifier does not exist
*/
@GET
@Path("{pair_id}")
@Produces(MediaType.APPLICATION_JSON)
public Response getPortPair(@PathParam("pair_id") String id) {
if (!service.exists(PortPairId.of(id))) {
return Response.status(NOT_FOUND).entity(PORT_PAIR_NOT_FOUND).build();
}
PortPair portPair = nullIsNotFound(service.getPortPair(PortPairId.of(id)), PORT_PAIR_NOT_FOUND);
ObjectNode result = new ObjectMapper().createObjectNode();
result.set("port_pair", new PortPairCodec().encode(portPair, this));
return ok(result.toString()).build();
}
/**
* Creates a new port pair.
*
* @param stream port pair 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 createPortPair(InputStream stream) {
try {
ObjectMapper mapper = new ObjectMapper();
ObjectNode jsonTree = (ObjectNode) mapper.readTree(stream);
JsonNode port = jsonTree.get("port_pair");
PortPair portPair = new PortPairCodec().decode((ObjectNode) port, this);
Boolean isSuccess = nullIsNotFound(service.createPortPair(portPair), PORT_PAIR_NOT_FOUND);
return Response.status(OK).entity(isSuccess.toString()).build();
} catch (IOException e) {
log.error("Exception while creating port pair {}.", e.toString());
throw new IllegalArgumentException(e);
}
}
/**
* Update details of a specified port pair id.
*
* @param id port pair id
* @param stream port pair from json
* @return 200 OK, 404 if the given identifier does not exist
*/
@PUT
@Path("{pair_id}")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public Response updatePortPair(@PathParam("pair_id") String id,
final InputStream stream) {
try {
ObjectMapper mapper = new ObjectMapper();
ObjectNode jsonTree = (ObjectNode) mapper.readTree(stream);
JsonNode port = jsonTree.get("port_pair");
PortPair portPair = new PortPairCodec().decode((ObjectNode) port, this);
Boolean isSuccess = nullIsNotFound(service.updatePortPair(portPair), PORT_PAIR_NOT_FOUND);
return Response.status(OK).entity(isSuccess.toString()).build();
} catch (IOException e) {
log.error("Update port pair failed because of exception {}.", e.toString());
throw new IllegalArgumentException(e);
}
}
/**
* Delete details of a specified port pair id.
*
* @param id port pair id
*/
@Path("{pair_id}")
@DELETE
public void deletePortPair(@PathParam("pair_id") String id) {
PortPairId portPairId = PortPairId.of(id);
Boolean isSuccess = nullIsNotFound(service.removePortPair(portPairId), PORT_PAIR_NOT_FOUND);
if (!isSuccess) {
log.debug("Port pair identifier {} does not exist", id);
}
}
}
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