ONOS-3692 Southbound Rest provider and protocol
Change-Id: I74a5752d4fce1df88828fa6c531979ab7c30a26a
t
diff --git a/protocols/rest/ctl/src/main/java/org/onosproject/protocol/rest/ctl/RestSBControllerImpl.java b/protocols/rest/ctl/src/main/java/org/onosproject/protocol/rest/ctl/RestSBControllerImpl.java
new file mode 100644
index 0000000..66f2530
--- /dev/null
+++ b/protocols/rest/ctl/src/main/java/org/onosproject/protocol/rest/ctl/RestSBControllerImpl.java
@@ -0,0 +1,210 @@
+/*
+ * 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.protocol.rest.ctl;
+
+import com.sun.jersey.api.client.Client;
+import com.sun.jersey.api.client.ClientResponse;
+import com.sun.jersey.api.client.WebResource;
+import org.apache.commons.io.IOUtils;
+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.Service;
+import org.onlab.packet.IpAddress;
+import org.onosproject.net.DeviceId;
+import org.onosproject.protocol.rest.RestSBController;
+import org.onosproject.protocol.rest.RestSBDevice;
+import org.osgi.service.component.ComponentContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * The implementation of RestSBController.
+ */
+@Component(immediate = true)
+@Service
+public class RestSBControllerImpl implements RestSBController {
+
+ private static final Logger log =
+ LoggerFactory.getLogger(RestSBControllerImpl.class);
+ private static final String APPLICATION = "application/";
+ private static final String XML = "xml";
+ private static final String JSON = "json";
+ private static final String DOUBLESLASH = "//";
+ private static final String COLON = ":";
+ private static final int STATUS_OK = Response.Status.OK.getStatusCode();
+ private static final int STATUS_CREATED = Response.Status.CREATED.getStatusCode();
+ private static final int STATUS_ACCEPTED = Response.Status.ACCEPTED.getStatusCode();
+ private static final String SLASH = "/";
+
+ private final Map<DeviceId, RestSBDevice> deviceMap = new ConcurrentHashMap<>();
+ Client client;
+
+ @Activate
+ public void activate(ComponentContext context) {
+ client = Client.create();
+ log.info("Started");
+ }
+
+ @Deactivate
+ public void deactivate() {
+ deviceMap.clear();
+ log.info("Stopped");
+ }
+
+ @Override
+ public Map<DeviceId, RestSBDevice> getDevices() {
+ return deviceMap;
+ }
+
+ @Override
+ public RestSBDevice getDevice(DeviceId deviceInfo) {
+ return deviceMap.get(deviceInfo);
+ }
+
+ @Override
+ public RestSBDevice getDevice(IpAddress ip, int port) {
+ for (DeviceId info : deviceMap.keySet()) {
+ if (IpAddress.valueOf(info.uri().getHost()).equals(ip) &&
+ info.uri().getPort() == port) {
+ return deviceMap.get(info);
+ }
+ }
+ return null;
+ }
+
+ @Override
+ public void addDevice(RestSBDevice device) {
+ deviceMap.put(device.deviceId(), device);
+ }
+
+ @Override
+ public void removeDevice(RestSBDevice device) {
+ deviceMap.remove(device.deviceId());
+ }
+
+ @Override
+ public boolean post(DeviceId device, String request, InputStream payload, String mediaType) {
+ WebResource webResource = getWebResource(device, request);
+
+ ClientResponse response = null;
+ if (payload != null) {
+ try {
+ response = webResource.accept(mediaType)
+ .post(ClientResponse.class, IOUtils.toString(payload, StandardCharsets.UTF_8));
+ } catch (IOException e) {
+ log.error("Cannot do POST {} request on device {} because can't read payload",
+ request, device);
+ }
+ } else {
+ response = webResource.accept(mediaType)
+ .post(ClientResponse.class);
+ }
+ return checkReply(response);
+ }
+
+ @Override
+ public boolean put(DeviceId device, String request, InputStream payload, String mediaType) {
+ WebResource webResource = getWebResource(device, request);
+ ClientResponse response = null;
+ if (payload != null) {
+ try {
+ response = webResource.accept(mediaType)
+ .put(ClientResponse.class, IOUtils.toString(payload, StandardCharsets.UTF_8));
+ } catch (IOException e) {
+ log.error("Cannot do PUT {} request on device {} because can't read payload",
+ request, device);
+ }
+ } else {
+ response = webResource.accept(mediaType)
+ .put(ClientResponse.class);
+ }
+ return checkReply(response);
+ }
+
+ @Override
+ public InputStream get(DeviceId device, String request, String mediaType) {
+ WebResource webResource = getWebResource(device, request);
+ String type;
+ switch (mediaType) {
+ case XML:
+ type = MediaType.APPLICATION_XML;
+ break;
+ case JSON:
+ type = MediaType.APPLICATION_JSON;
+ break;
+ default:
+ throw new IllegalArgumentException("Unsupported media type " + mediaType);
+
+ }
+ return new ByteArrayInputStream(webResource.accept(type).get(ClientResponse.class)
+ .getEntity(String.class)
+ .getBytes(StandardCharsets.UTF_8));
+ }
+
+ @Override
+ public boolean delete(DeviceId device, String request, InputStream payload, String mediaType) {
+ WebResource webResource = getWebResource(device, request);
+ ClientResponse response = null;
+ if (payload != null) {
+ try {
+ response = webResource.accept(mediaType)
+ .delete(ClientResponse.class, IOUtils.toString(payload, StandardCharsets.UTF_8));
+ } catch (IOException e) {
+ log.error("Cannot do PUT {} request on device {} because can't read payload",
+ request, device);
+ }
+ } else {
+ response = webResource.accept(mediaType)
+ .delete(ClientResponse.class);
+ }
+ return checkReply(response);
+ }
+
+ private WebResource getWebResource(DeviceId device, String request) {
+ return Client.create().resource(deviceMap.get(device).protocol() + COLON +
+ DOUBLESLASH +
+ deviceMap.get(device).ip().toString() +
+ COLON + deviceMap.get(device).port() +
+ SLASH + request);
+ }
+
+ private boolean checkReply(ClientResponse response) {
+ if (response != null) {
+ if (response.getStatus() == STATUS_OK ||
+ response.getStatus() == STATUS_CREATED ||
+ response.getStatus() == STATUS_ACCEPTED) {
+ return true;
+ } else {
+ log.error("Failed request: HTTP error code : "
+ + response.getStatus());
+ return false;
+ }
+ }
+ log.error("Null reply from device");
+ return false;
+ }
+}