Add a prometheus exporter
Change-Id: I2989d87c2a83eed31c6617694bdcb78bf9b38553
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/config/DefaultPrometheusTelemetryConfig.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/config/DefaultPrometheusTelemetryConfig.java
new file mode 100644
index 0000000..b22f053
--- /dev/null
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/config/DefaultPrometheusTelemetryConfig.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.openstacktelemetry.config;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Maps;
+import org.onosproject.openstacktelemetry.api.config.PrometheusTelemetryConfig;
+import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+
+import java.util.Map;
+import java.util.Objects;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * A configuration file contains Prometheus telemetry parameters.
+ */
+public final class DefaultPrometheusTelemetryConfig implements PrometheusTelemetryConfig {
+
+ private final String address;
+ private final int port;
+ private final Map<String, Object> configMap;
+
+ private DefaultPrometheusTelemetryConfig(String address,
+ int port,
+ Map<String, Object> configMap) {
+ this.address = address;
+ this.port = port;
+ this.configMap = configMap;
+ }
+
+ @Override
+ public String address() {
+ return address;
+ }
+
+ @Override
+ public int port() {
+ return port;
+ }
+
+ @Override
+ public Map<String, Object> configMap() {
+ if (configMap != null) {
+ return ImmutableMap.copyOf(configMap);
+ } else {
+ return Maps.newConcurrentMap();
+ }
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+
+ if (obj instanceof DefaultPrometheusTelemetryConfig) {
+ final DefaultPrometheusTelemetryConfig other = (DefaultPrometheusTelemetryConfig) obj;
+ return Objects.equals(this.address, other.address) &&
+ Objects.equals(this.port, other.port) &&
+ Objects.equals(this.configMap, other.configMap);
+ }
+ return false;
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(address, port, configMap);
+ }
+
+ @Override
+ public String toString() {
+ return toStringHelper(this)
+ .add("address", address)
+ .add("port", port)
+ .add("configMap", configMap)
+ .toString();
+ }
+
+ @Override
+ public TelemetryConfig.Builder createBuilder() {
+ return new DefaultBuilder();
+ }
+
+ /**
+ * Builder class of DefaultPrometheusTelemetryConfig.
+ */
+ public static final class DefaultBuilder implements Builder {
+ private String address;
+ private int port;
+ private Map<String, Object> configMap;
+
+ @Override
+ public Builder withAddress(String address) {
+ this.address = address;
+ return this;
+ }
+
+ @Override
+ public Builder withPort(int port) {
+ this.port = port;
+ return this;
+ }
+
+ @Override
+ public Builder withConfigMap(Map<String, Object> configMap) {
+ this.configMap = configMap;
+ return this;
+ }
+ @Override
+ public PrometheusTelemetryConfig build() {
+ checkNotNull(address, "Prometheus exporter binding address cannot be null");
+ checkNotNull(configMap, "Config map cannot be null");
+ return new DefaultPrometheusTelemetryConfig(address, port, configMap);
+ }
+ }
+}