CHANGE 1:
Patch to show API for Alarms in Fault Management.
AlarmsWebResource.java & Alarm.java show what the external REST API for alarms would look like.
See more info at https://wiki.onosproject.org/display/ONOS/Fault+Management
Everything else is very early and work-in-progress/mostly just stubbed out, and not ready for review but all advice welcome.
CHANGE 2:
[ONOS-3203] Update re. comments on FM API draft.
Comments were from Thomas Vachuska regarding https://gerrit.onosproject.org/#/c/6180/
Change-Id: If8d330d1b18b503e89849587e2d4388bf67becc0
diff --git a/apps/faultmanagement/fmweb/src/main/java/org/onosproject/faultmanagement/web/AlarmsWebResource.java b/apps/faultmanagement/fmweb/src/main/java/org/onosproject/faultmanagement/web/AlarmsWebResource.java
new file mode 100644
index 0000000..56c891c
--- /dev/null
+++ b/apps/faultmanagement/fmweb/src/main/java/org/onosproject/faultmanagement/web/AlarmsWebResource.java
@@ -0,0 +1,148 @@
+/*
+ * 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.faultmanagement.web;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import java.io.IOException;
+import java.io.InputStream;
+import org.onosproject.rest.AbstractWebResource;
+
+import javax.ws.rs.core.Response;
+import org.onosproject.incubator.net.faultmanagement.alarm.Alarm;
+import org.onosproject.incubator.net.faultmanagement.alarm.AlarmId;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DefaultValue;
+import javax.ws.rs.GET;
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.MediaType;
+import org.onosproject.codec.CodecService;
+import org.onosproject.incubator.net.faultmanagement.alarm.AlarmService;
+import org.slf4j.Logger;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Alarms on devices or ONOS.
+ */
+@Path("alarms")
+public class AlarmsWebResource extends AbstractWebResource {
+
+ public static final String ALARM_NOT_FOUND = "Alarm is not found";
+
+ private final Logger log = getLogger(getClass());
+
+ public AlarmsWebResource() {
+ get(CodecService.class).registerCodec(Alarm.class, new AlarmCodec());
+ }
+
+ /**
+ * Get all alarms. Returns a list of all alarms across all devices.
+ *
+ * @param includeCleared include recently cleared alarms in response
+ * @return JSON encoded set of alarms
+ */
+ @GET
+ @Produces(MediaType.APPLICATION_JSON)
+ public Response getAlarms(@DefaultValue("false") @QueryParam("includeCleared") final boolean includeCleared
+ ) {
+
+ log.info("Requesting all alarms, includeCleared={}", includeCleared);
+ final AlarmService service = get(AlarmService.class);
+
+ final Iterable<Alarm> alarms = includeCleared
+ ? service.getAlarms()
+ : service.getActiveAlarms();
+
+ final ObjectNode result = new ObjectMapper().createObjectNode();
+ result.set("alarms",
+ codec(Alarm.class).
+ encode(alarms, this));
+ return ok(result.toString()).build();
+
+ }
+
+ /**
+ * Get specified alarm. Returns details of the specified alarm.
+ *
+ * @param id ONOS allocated identifier
+ * @return JSON encoded alarm
+ */
+ @GET
+ @Path("{id}")
+ @Produces(MediaType.APPLICATION_JSON)
+ public Response getAlarm(@PathParam("id") final String id) {
+ log.info("HTTP GET alarm for id={}", id);
+
+ final AlarmId alarmId = toAlarmId(id);
+ final Alarm alarm = get(AlarmService.class).getAlarm(alarmId);
+
+ final ObjectNode result = mapper().createObjectNode();
+ result.set("alarm", codec(Alarm.class).encode(alarm, this));
+ return ok(result.toString()).build();
+ }
+
+ /**
+ * Update book-keeping fields on the alarm. Returns an up-to-date version of the alarm. Some of its fields may have
+ * been updated since the REST client last retrieved the alarm being updated.
+ *
+ * @param alarmIdPath
+ * @param stream input JSON
+ * @return updated JSON encoded alarm
+ */
+ @PUT
+ @Path("{alarm_id}")
+ @Consumes(MediaType.APPLICATION_JSON)
+ @Produces(MediaType.APPLICATION_JSON)
+ public Response update(@PathParam("alarm_id") final String alarmIdPath, final InputStream stream) {
+ log.info("PUT NEW ALARM at /{}", alarmIdPath);
+
+ try {
+ final ObjectNode jsonTree = (ObjectNode) mapper().readTree(stream);
+ log.info("jsonTree={}", jsonTree);
+
+ final Alarm alarm = codec(Alarm.class).decode(jsonTree, this);
+
+ final AlarmService service = get(AlarmService.class);
+
+ if (Long.parseLong(alarmIdPath) != alarm.id().fingerprint()) {
+ throw new IllegalArgumentException("id in path is " + Long.parseLong(alarmIdPath)
+ + " but payload uses id=" + alarm.id().fingerprint());
+
+ }
+ final Alarm updated = service.update(alarm);
+ final ObjectNode encoded = new AlarmCodec().encode(updated, this);
+ return ok(encoded.toString()).build();
+
+ } catch (IOException ioe) {
+ throw new IllegalArgumentException(ioe);
+ }
+ }
+
+ private static AlarmId toAlarmId(final String id) {
+ try {
+ return AlarmId.valueOf(Long.parseLong(id));
+ } catch (NumberFormatException ex) {
+ throw new IllegalArgumentException("Alarm id should be numeric", ex);
+ }
+
+ }
+
+}