feat(agent): two-way communications

pom.xml

@@ -85,7 +85,7 @@
   <com.google.dagger.version>2.47</com.google.dagger.version>
   <com.google.dagger.compiler.version>${com.google.dagger.version}</com.google.dagger.compiler.version>
 
-  <io.cryostat.core.version>2.21.1</io.cryostat.core.version>
+  <io.cryostat.core.version>2.22.0</io.cryostat.core.version>
 
   <org.openjdk.nashorn.core.version>15.4</org.openjdk.nashorn.core.version>
   <org.apache.commons.lang3.version>3.12.0</org.apache.commons.lang3.version>

smoketest.sh

@@ -235,6 +235,7 @@ runDemoApps() {
         --env CRYOSTAT_AGENT_TRUST_ALL="true" \
         --env CRYOSTAT_AGENT_AUTHORIZATION="Basic $(echo user:pass | base64)" \
         --env CRYOSTAT_AGENT_REGISTRATION_PREFER_JMX="false" \
+        --env CRYOSTAT_AGENT_API_WRITES_ENABLED="true" \
         --rm -d quay.io/andrewazores/quarkus-test:latest
 
     # copy a jboss-client.jar into /clientlib first

src/main/java/io/cryostat/jmc/serialization/HyperlinkedSerializableRecordingDescriptor.java

@@ -19,6 +19,7 @@
 import org.openjdk.jmc.rjmx.services.jfr.IRecordingDescriptor;
 import org.openjdk.jmc.rjmx.services.jfr.IRecordingDescriptor.RecordingState;
 
+import io.cryostat.core.serialization.SerializableRecordingDescriptor;
 import io.cryostat.recordings.RecordingMetadataManager.Metadata;
 
 import org.apache.commons.lang3.builder.EqualsBuilder;

src/main/java/io/cryostat/messaging/MessagingServer.java

@@ -35,7 +35,7 @@
 import io.cryostat.messaging.notifications.NotificationFactory;
 import io.cryostat.messaging.notifications.NotificationListener;
 import io.cryostat.net.AuthManager;
-import io.cryostat.net.AuthorizationErrorException;
+import io.cryostat.net.AuthenticationErrorException;
 import io.cryostat.net.HttpServer;
 import io.cryostat.net.security.ResourceAction;
 import io.cryostat.net.web.http.HttpMimeType;
@@ -132,7 +132,7 @@ public void start() throws SocketException, UnknownHostException {
                                                         .onFailure(
                                                                 () ->
                                                                         promise.fail(
-                                                                                new AuthorizationErrorException(
+                                                                                new AuthenticationErrorException(
                                                                                         "")))
                                                         .execute();
                                             } catch (InterruptedException
@@ -146,9 +146,9 @@ public void start() throws SocketException, UnknownHostException {
                                             if (result.failed()) {
                                                 if (ExceptionUtils.hasCause(
                                                         result.cause(),
-                                                        AuthorizationErrorException.class)) {
+                                                        AuthenticationErrorException.class)) {
                                                     logger.info(
-                                                            (AuthorizationErrorException)
+                                                            (AuthenticationErrorException)
                                                                     result.cause());
                                                     logger.info(
                                                             "Disconnected remote client {} due to"

src/main/java/io/cryostat/net/AgentApiException.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright The Cryostat Authors.
+ *
+ * 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 io.cryostat.net;
+
+public class AgentApiException extends RuntimeException {
+    public AgentApiException(int statusCode) {
+        super(String.format("Unexpected HTTP response code %d", statusCode));
+    }
+}