| /* |
| * 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.xosintegration; |
| |
| import java.util.Dictionary; |
| import java.util.Set; |
| import java.util.stream.Collectors; |
| import java.util.stream.IntStream; |
| |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.apache.felix.scr.annotations.Modified; |
| import org.apache.felix.scr.annotations.Property; |
| import org.apache.felix.scr.annotations.Reference; |
| import org.apache.felix.scr.annotations.ReferenceCardinality; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onlab.util.Tools; |
| import org.onosproject.cfg.ComponentConfigService; |
| import org.onosproject.core.ApplicationId; |
| import org.onosproject.core.CoreService; |
| import org.osgi.service.component.ComponentContext; |
| import org.slf4j.Logger; |
| |
| import com.eclipsesource.json.JsonArray; |
| import com.eclipsesource.json.JsonObject; |
| import com.sun.jersey.api.client.Client; |
| import com.sun.jersey.api.client.ClientResponse; |
| import com.sun.jersey.api.client.WebResource; |
| import com.sun.jersey.api.client.filter.HTTPBasicAuthFilter; |
| |
| import static com.google.common.base.Strings.isNullOrEmpty; |
| import static com.google.common.net.MediaType.JSON_UTF_8; |
| import static java.net.HttpURLConnection.HTTP_CREATED; |
| import static java.net.HttpURLConnection.HTTP_NO_CONTENT; |
| import static java.net.HttpURLConnection.HTTP_OK; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| |
| /** |
| * XOS interface application. |
| */ |
| @Component(immediate = true) |
| @Service |
| public class OnosXOSIntegrationManager implements VoltTenantService { |
| |
| private static final String TEST_XOS_SERVER_ADDRESS = "10.254.1.22"; |
| private static final int TEST_XOS_SERVER_PORT = 8000; |
| private static final String XOS_TENANT_BASE_URI = "/xoslib/volttenant/"; |
| |
| private final Logger log = getLogger(getClass()); |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected CoreService coreService; |
| @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY) |
| protected ComponentConfigService cfgService; |
| @Property(name = "XOSServerAddress", |
| value = TEST_XOS_SERVER_ADDRESS, |
| label = "XOS Server address") |
| protected String xosServerAddress = TEST_XOS_SERVER_ADDRESS; |
| @Property(name = "XOSServerPort", |
| intValue = TEST_XOS_SERVER_PORT, |
| label = "XOS Server port") |
| protected int xosServerPort = TEST_XOS_SERVER_PORT; |
| private ApplicationId appId; |
| |
| @Activate |
| public void activate(ComponentContext context) { |
| log.info("XOS app is starting"); |
| cfgService.registerProperties(getClass()); |
| appId = coreService.registerApplication("org.onosproject.xosintegration"); |
| readComponentConfiguration(context); |
| |
| log.info("XOS({}) started", appId.id()); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| cfgService.unregisterProperties(getClass(), false); |
| log.info("XOS({}) stopped", appId.id()); |
| } |
| |
| @Modified |
| public void modified(ComponentContext context) { |
| readComponentConfiguration(context); |
| } |
| |
| /** |
| * Converts a JSON representation of a tenant into a tenant object. |
| * |
| * @param jsonTenant JSON object representing the tenant |
| * @return volt tenant object |
| */ |
| private VoltTenant jsonToTenant(JsonObject jsonTenant) { |
| return VoltTenant.builder() |
| .withHumanReadableName(jsonTenant.get("humanReadableName").asString()) |
| .withId(jsonTenant.get("id").asInt()) |
| .withProviderService(jsonTenant.get("provider_service").asInt()) |
| .withServiceSpecificId(jsonTenant.get("service_specific_id").asString()) |
| .withVlanId(jsonTenant.get("vlan_id").asString()) |
| .build(); |
| } |
| |
| /** |
| * Converts a tenant object into a JSON string. |
| * |
| * @param tenant volt tenant object to convert |
| * @return JSON string for the tenant |
| */ |
| private String tenantToJson(VoltTenant tenant) { |
| return "{" |
| + "\"humanReadableName\": \"" + tenant.humanReadableName() + "\"," |
| + "\"id\": \"" + tenant.id() + "\"," |
| + "\"provider_service\": \"" + tenant.providerService() + "\"," |
| + "\"service_specific_id\": \"" + tenant.serviceSpecificId() + "\"," |
| + "\"vlan_id\": \"" + tenant.vlanId() + "\"" |
| + "}"; |
| } |
| |
| /** |
| * Gets a client web resource builder for the base XOS REST API |
| * with no additional URI. |
| * |
| * @return web resource builder |
| */ |
| private WebResource.Builder getClientBuilder() { |
| return getClientBuilder(""); |
| } |
| |
| /** |
| * Gets a client web resource builder for the base XOS REST API |
| * with an optional additional URI. |
| * |
| * @return web resource builder |
| */ |
| private WebResource.Builder getClientBuilder(String uri) { |
| String baseUrl = "http://" + xosServerAddress + ":" |
| + Integer.toString(xosServerPort); |
| Client client = Client.create(); |
| client.addFilter(new HTTPBasicAuthFilter("padmin@vicci.org", "letmein")); |
| WebResource resource = client.resource(baseUrl |
| + XOS_TENANT_BASE_URI + uri); |
| return resource.accept(JSON_UTF_8.toString()) |
| .type(JSON_UTF_8.toString()); |
| } |
| |
| /** |
| * Performs a REST GET operation on the base XOS REST URI. |
| * |
| * @return JSON string fetched by the GET operation |
| */ |
| private String getRest() { |
| return getRest(""); |
| } |
| |
| /** |
| * Performs a REST GET operation on the base XOS REST URI with |
| * an optional additional URI. |
| * |
| * @return JSON string fetched by the GET operation |
| */ |
| private String getRest(String uri) { |
| WebResource.Builder builder = getClientBuilder(uri); |
| ClientResponse response = builder.get(ClientResponse.class); |
| |
| if (response.getStatus() != HTTP_OK) { |
| log.info("REST GET request returned error code {}", |
| response.getStatus()); |
| } |
| String jsonString = response.getEntity(String.class); |
| log.info("JSON read:\n{}", jsonString); |
| |
| return jsonString; |
| } |
| |
| /** |
| * Performs a REST POST operation of a json string on the base |
| * XOS REST URI with an optional additional URI. |
| * |
| * @param json JSON string to post |
| */ |
| private void postRest(String json) { |
| WebResource.Builder builder = getClientBuilder(); |
| ClientResponse response = builder.post(ClientResponse.class, json); |
| |
| if (response.getStatus() != HTTP_CREATED) { |
| log.info("REST POST request returned error code {}", |
| response.getStatus()); |
| } |
| } |
| |
| /** |
| * Performs a REST DELETE operation on the base |
| * XOS REST URI with an optional additional URI. |
| * |
| * @param uri optional additional URI |
| */ |
| private void deleteRest(String uri) { |
| WebResource.Builder builder = getClientBuilder(uri); |
| ClientResponse response = builder.delete(ClientResponse.class); |
| |
| if (response.getStatus() != HTTP_NO_CONTENT) { |
| log.info("REST DELETE request returned error code {}", |
| response.getStatus()); |
| } |
| } |
| |
| /** |
| * Deletes the tenant with the given ID. |
| * |
| * @param tenantId ID of tenant to delete |
| */ |
| private void deleteTenant(long tenantId) { |
| deleteRest(Long.toString(tenantId)); |
| } |
| |
| @Override |
| public Set<VoltTenant> getAllTenants() { |
| String jsonString = getRest(); |
| |
| JsonArray voltTenantItems = JsonArray.readFrom(jsonString); |
| |
| return IntStream.range(0, voltTenantItems.size()) |
| .mapToObj(index -> jsonToTenant(voltTenantItems.get(index).asObject())) |
| .collect(Collectors.toSet()); |
| } |
| |
| @Override |
| public void removeTenant(long id) { |
| deleteTenant(id); |
| } |
| |
| @Override |
| public VoltTenant addTenant(VoltTenant newTenant) { |
| String json = tenantToJson(newTenant); |
| postRest(json); |
| return newTenant; |
| } |
| |
| @Override |
| public VoltTenant getTenant(long id) { |
| String jsonString = getRest(Long.toString(id)); |
| JsonObject jsonTenant = JsonObject.readFrom(jsonString); |
| if (jsonTenant.get("id") != null) { |
| return jsonToTenant(jsonTenant); |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Extracts properties from the component configuration context. |
| * |
| * @param context the component context |
| */ |
| private void readComponentConfiguration(ComponentContext context) { |
| Dictionary<?, ?> properties = context.getProperties(); |
| |
| String newXosServerAddress = Tools.get(properties, "XOSServerAddress"); |
| if (!isNullOrEmpty(newXosServerAddress)) { |
| xosServerAddress = newXosServerAddress; |
| } |
| |
| String newXosServerPortString = Tools.get(properties, "XOSServerPort"); |
| if (!isNullOrEmpty(newXosServerPortString)) { |
| xosServerPort = Integer.parseInt(newXosServerPortString); |
| } |
| log.info("XOS URL is now http://{}:{}", xosServerAddress, xosServerPort); |
| } |
| } |
| |
| |