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-rw-r--r--vpp-common/vpp-translate-utils/pom.xml12
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/VppStatusListener.java46
-rw-r--r--vpp-common/vpp-translate-utils/src/test/java/io/fd/honeycomb/translate/v3po/util/VppStatusListenerTest.java37
3 files changed, 95 insertions, 0 deletions
diff --git a/vpp-common/vpp-translate-utils/pom.xml b/vpp-common/vpp-translate-utils/pom.xml
index 15431c59d..bc9174b06 100644
--- a/vpp-common/vpp-translate-utils/pom.xml
+++ b/vpp-common/vpp-translate-utils/pom.xml
@@ -91,6 +91,18 @@
<artifactId>mockito-all</artifactId>
<scope>test</scope>
</dependency>
+ <dependency>
+ <groupId>org.skinny-framework</groupId>
+ <artifactId>skinny-logback</artifactId>
+ <version>1.0.8</version>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>com.github.stefanbirkner</groupId>
+ <artifactId>system-rules</artifactId>
+ <version>1.16.0</version>
+ <scope>test</scope>
+ </dependency>
</dependencies>
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/VppStatusListener.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/VppStatusListener.java
new file mode 100644
index 000000000..7a728280d
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/VppStatusListener.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * 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.fd.honeycomb.translate.v3po.util;
+
+import io.fd.honeycomb.translate.util.read.KeepaliveReaderWrapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Listens to vpp status changes. Restarts honeycomb if vpp is down.
+ */
+public final class VppStatusListener implements KeepaliveReaderWrapper.KeepaliveFailureListener {
+
+ /**
+ * Value picked up by honeycomb start script, tigers honeycomb restart when returned by the java process
+ */
+ public static final int RESTART_ERROR_CODE = 100;
+ private static final Logger LOG = LoggerFactory.getLogger(VppStatusListener.class);
+
+ private volatile boolean down;
+
+ public boolean isDown() {
+ return down;
+ }
+
+ @Override
+ public void onKeepaliveFailure() {
+ LOG.error("Keepalive failed. VPP is probably DOWN! Restarting Honeycomb");
+ this.down = true;
+ System.exit(RESTART_ERROR_CODE);
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/test/java/io/fd/honeycomb/translate/v3po/util/VppStatusListenerTest.java b/vpp-common/vpp-translate-utils/src/test/java/io/fd/honeycomb/translate/v3po/util/VppStatusListenerTest.java
new file mode 100644
index 000000000..b74c9c7d0
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/test/java/io/fd/honeycomb/translate/v3po/util/VppStatusListenerTest.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * 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.fd.honeycomb.translate.v3po.util;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.contrib.java.lang.system.ExpectedSystemExit;
+
+public class VppStatusListenerTest {
+
+ @Rule
+ public final ExpectedSystemExit exit = ExpectedSystemExit.none();
+
+ @Test
+ public void testOnKeepaliveFailure() throws Exception {
+ final VppStatusListener vppStatus = new VppStatusListener();
+ exit.expectSystemExitWithStatus(VppStatusListener.RESTART_ERROR_CODE);
+ exit.checkAssertionAfterwards(() -> assertTrue(vppStatus.isDown()));
+ vppStatus.onKeepaliveFailure();
+ }
+} \ No newline at end of file