diff options
Diffstat (limited to 'framework/src/onos/apps/openstackswitching/app/src/main/java/org/onosproject/openstackswitching/OpenstackRestHandler.java')
-rw-r--r-- | framework/src/onos/apps/openstackswitching/app/src/main/java/org/onosproject/openstackswitching/OpenstackRestHandler.java | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/framework/src/onos/apps/openstackswitching/app/src/main/java/org/onosproject/openstackswitching/OpenstackRestHandler.java b/framework/src/onos/apps/openstackswitching/app/src/main/java/org/onosproject/openstackswitching/OpenstackRestHandler.java new file mode 100644 index 00000000..9065bc52 --- /dev/null +++ b/framework/src/onos/apps/openstackswitching/app/src/main/java/org/onosproject/openstackswitching/OpenstackRestHandler.java @@ -0,0 +1,179 @@ +/* + * 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.openstackswitching; + +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fasterxml.jackson.databind.node.ArrayNode; +import com.fasterxml.jackson.databind.node.ObjectNode; +import com.google.common.collect.Lists; +import com.sun.jersey.api.client.Client; +import com.sun.jersey.api.client.WebResource; +import org.onosproject.openstackswitching.web.OpenstackNetworkCodec; +import org.onosproject.openstackswitching.web.OpenstackPortCodec; +import org.onosproject.openstackswitching.web.OpenstackSubnetCodec; +import org.slf4j.Logger; +import javax.ws.rs.core.MediaType; +import java.io.IOException; +import java.util.Collection; +import java.util.List; + +import static com.google.common.base.Preconditions.checkNotNull; +import static com.google.common.net.MediaType.JSON_UTF_8; +import static org.slf4j.LoggerFactory.getLogger; + +/** + * Handles REST Calls to Openstack Neutron. + * + */ +public class OpenstackRestHandler { + + private final Logger log = getLogger(getClass()); + private String neutronUrl; + private String keystoneUrl; + private String tokenId; + private String userName; + private String pass; + + /** + * Creates OpenstackRestHandler instance. + * + * @param cfg OpenstackSwitchingConfig reference + */ + public OpenstackRestHandler(OpenstackSwitchingConfig cfg) { + this.neutronUrl = checkNotNull(cfg.neutronServer()); + this.keystoneUrl = checkNotNull(cfg.keystoneServer()); + this.userName = checkNotNull(cfg.userName()); + this.pass = checkNotNull(cfg.password()); + } + + /** + * Returns network information stored in Neutron. + * + * @return List of OpenstackNetwork + */ + public Collection<OpenstackNetwork> getNetworks() { + + WebResource.Builder builder = getClientBuilder(neutronUrl + "networks"); + String response = builder.accept(MediaType.APPLICATION_JSON_TYPE). + header("X-Auth-Token", getToken()).get(String.class); + + ObjectMapper mapper = new ObjectMapper(); + List<OpenstackNetwork> openstackNetworks = Lists.newArrayList(); + try { + ObjectNode node = (ObjectNode) mapper.readTree(response); + ArrayNode networkList = (ArrayNode) node.path("networks"); + OpenstackNetworkCodec networkCodec = new OpenstackNetworkCodec(); + networkList.forEach(n -> openstackNetworks.add(networkCodec.decode((ObjectNode) n, null))); + } catch (IOException e) { + e.printStackTrace(); + } + + log.debug("networks response:" + response); + openstackNetworks.forEach(n -> log.debug("network ID: {}", n.id())); + + return openstackNetworks; + } + + /** + * Returns port information stored in Neutron. + * + * @return List of OpenstackPort + */ + public Collection<OpenstackPort> getPorts() { + + WebResource.Builder builder = getClientBuilder(neutronUrl + "ports"); + String response = builder.accept(MediaType.APPLICATION_JSON_TYPE). + header("X-Auth-Token", getToken()).get(String.class); + + ObjectMapper mapper = new ObjectMapper(); + List<OpenstackPort> openstackPorts = Lists.newArrayList(); + try { + ObjectNode node = (ObjectNode) mapper.readTree(response); + ArrayNode portList = (ArrayNode) node.path("ports"); + OpenstackPortCodec portCodec = new OpenstackPortCodec(); + portList.forEach(p -> openstackPorts.add(portCodec.decode((ObjectNode) p, null))); + } catch (IOException e) { + e.printStackTrace(); + } + + log.debug("port response:" + response); + openstackPorts.forEach(n -> log.debug("port ID: {}", n.id())); + + return openstackPorts; + } + + /** + * Returns Subnet information in Neutron. + * + * @return List of OpenstackSubnet + */ + public Collection<OpenstackSubnet> getSubnets() { + + WebResource.Builder builder = getClientBuilder(neutronUrl + "subnets"); + String response = builder.accept(MediaType.APPLICATION_JSON_TYPE). + header("X-Auth-Token", getToken()).get(String.class); + + ObjectMapper mapper = new ObjectMapper(); + List<OpenstackSubnet> subnets = Lists.newArrayList(); + try { + ObjectNode node = (ObjectNode) mapper.readTree(response); + ArrayNode subnetList = (ArrayNode) node.path("subnets"); + OpenstackSubnetCodec subnetCodec = new OpenstackSubnetCodec(); + subnetList.forEach(s -> subnets.add(subnetCodec.decode((ObjectNode) s, null))); + } catch (IOException e) { + e.printStackTrace(); + } + + log.debug("subnets response:" + response); + subnets.forEach(s -> log.debug("subnet ID: {}", s.id())); + + return subnets; + } + + private WebResource.Builder getClientBuilder(String uri) { + Client client = Client.create(); + WebResource resource = client.resource(uri); + return resource.accept(JSON_UTF_8.toString()) + .type(JSON_UTF_8.toString()); + } + + private String getToken() { + if (isTokenInvalid()) { + String request = "{\"auth\": {\"tenantName\": \"admin\", " + + "\"passwordCredentials\": {\"username\": \"" + + userName + "\",\"password\": \"" + pass + "\"}}}"; + WebResource.Builder builder = getClientBuilder(keystoneUrl + "tokens"); + String response = builder.accept(MediaType.APPLICATION_JSON).post(String.class, request); + + ObjectMapper mapper = new ObjectMapper(); + try { + ObjectNode node = (ObjectNode) mapper.readTree(response); + tokenId = node.path("access").path("token").path("id").asText(); + } catch (IOException e) { + e.printStackTrace(); + } + log.debug("token response:" + response); + } + + return tokenId; + } + + private boolean isTokenInvalid() { + //TODO: validation check for the existing token + return true; + } + +} |