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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.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.vtnweb.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.of(UUID.fromString(id)))) {
return Response.status(NOT_FOUND).entity(FLOW_CLASSIFIER_NOT_FOUND).build();
}
FlowClassifier flowClassifier = nullIsNotFound(
service.getFlowClassifier(FlowClassifierId.of(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.of(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();
}
}
}
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