#34: Added configuration via property file

CHANGELOG.md

@@ -1,4 +1,9 @@
-## 1.0-alpha.1 [unreleased]
+## 1.0.0.M2 [unreleased]
+
+### Features
+1. [#34](https://github.com/bonitoo-io/influxdb-client-java/issues/34): Auto-configure client from configuration file
+
+## 1.0.0.M1
 
 ### Features
 1. [client-java](https://github.com/bonitoo-io/influxdb-client-java/tree/master/client#influxdb-client-java): The reference Java client that allows query, write and InfluxDB 2.0 management

client-kotlin/README.md

@@ -85,23 +85,66 @@ fun main(args: Array<String>) = runBlocking {
 
 ## Advanced Usage
 
+### Client configuration file
+
+A client can be configured via configuration file. The configuration file has to be named as `influx2.properties` and has to be in root of classpath.
+
+The following options are supported:
+
+| Property name             | default   | description |
+| --------------------------|-----------|-------------| 
+| influx2.url               | -         | the url to connect to InfluxDB |
+| influx2.org               | -         | default destination organization for writes and queries |
+| influx2.bucket            | -         | default destination bucket for writes |
+| influx2.token             | -         | the token to use for the authorization |
+| influx2.logLevel          | NONE      | rest client verbosity level |
+| influx2.readTimeout       | 10000 ms  | read timeout |
+| influx2.writeTimeout      | 10000 ms  | write timeout |
+| influx2.connectTimeout    | 10000 ms  | socket timeout |
+
+The `influx2.readTimeout`, `influx2.writeTimeout` and `influx2.connectTimeout` supports `ms`, `s` and `m` as unit. Default is milliseconds.
+
+
+##### Configuration example
+
+```properties
+influx2.url=http://localhost:9999
+influx2.org=my-org
+influx2.bucket=my-bucket
+influx2.token=my-token
+influx2.logLevel=BODY
+influx2.readTimeout=5s
+influx2.writeTimeout=10s
+influx2.connectTimeout=5s
+```
+
+and then:
+
+```kotlin
+val influxDBClient = InfluxDBClientKotlinFactory.create();
+```
+
 ### Client connection string
 
 A client can be constructed using a connection string that can contain the InfluxDBClientOptions parameters encoded into the URL.  
 
-```java
+```kotlin
 val influxDBClient = InfluxDBClientKotlinFactory
             .create("http://localhost:8086?readTimeout=5000&connectTimeout=5000&logLevel=BASIC", token)
 ```
 The following options are supported:
 
-| Property name | default | description |
-| --------------|-------------|-------------| 
-| readTimeout       | 10000 ms| read timeout |
-| writeTimeout      | 10000 ms| write timeout |
-| connectTimeout    | 10000 ms| socket timeout |
-| logLevel          | NONE | rest client verbosity level |
-
+| Property name     | default   | description |
+| ------------------|-----------|-------------| 
+| org               | -         | default destination organization for writes and queries |
+| bucket            | -         | default destination bucket for writes |
+| token             | -         | the token to use for the authorization |
+| logLevel          | NONE      | rest client verbosity level |
+| readTimeout       | 10000 ms  | read timeout |
+| writeTimeout      | 10000 ms  | write timeout |
+| connectTimeout    | 10000 ms  | socket timeout |
+
+The `readTimeout`, `writeTimeout` and `connectTimeout` supports `ms`, `s` and `m` as unit. Default is milliseconds.
 
 ### Gzip support
 `InfluxDBClientKotlin` does not enable gzip compress for http request body by default. If you want to enable gzip to reduce transfer data's size, you can call:

client-kotlin/src/main/kotlin/org/influxdata/client/kotlin/InfluxDBClientKotlinFactory.kt

@@ -26,7 +26,7 @@ import org.influxdata.client.InfluxDBClientOptions
 import org.influxdata.client.kotlin.internal.InfluxDBClientKotlinImpl
 
 /**
- * The Factory that creates a instance of a Flux client.
+ * The Factory that creates an instance of a Flux client.
  * 
  * @author Jakub Bednar (bednar@github) (30/10/2018 08:19)
  */
@@ -35,23 +35,39 @@ class InfluxDBClientKotlinFactory {
     companion object {
 
         /**
-         * Create a instance of the InfluxDB 2.0 reactive client.
+         * Create an instance of the InfluxDB 2.0 client that is configured via {@code influx2.properties}.
+         * The {@code influx2.properties} has to be located on classpath.
          *
-         * @param url the url to connect to the InfluxDB
          * @return client
-         * @see InfluxDBClientOptions.Builder.url
          */
-        fun create(url: String): InfluxDBClientKotlin {
+        fun create(): InfluxDBClientKotlin {
 
             val options = InfluxDBClientOptions.builder()
-                    .url(url)
+                    .loadProperties()
+                    .build()
+
+            return create(options)
+        }
+
+        /**
+         * Create an instance of the InfluxDB 2.0 client. The url could be a connection string with various configurations.
+         *
+         * e.g.: "http://localhost:8086?readTimeout=5000&connectTimeout=5000&logLevel=BASIC
+         *
+         * @param connectionString connection string with various configurations.
+         * @return client
+         */
+        fun create(connectionString: String): InfluxDBClientKotlin {
+
+            val options = InfluxDBClientOptions.builder()
+                    .connectionString(connectionString)
                     .build()
 
             return create(options)
         }
 
         /**
-         * Create a instance of the InfluxDB 2.0 reactive client.
+         * Create an instance of the InfluxDB 2.0 reactive client.
          *
          * @param url      the url to connect to the InfluxDB
          * @param username the username to use in the basic auth
@@ -72,7 +88,7 @@ class InfluxDBClientKotlinFactory {
         }
 
         /**
-         * Create a instance of the InfluxDB 2.0 reactive client.
+         * Create an instance of the InfluxDB 2.0 reactive client.
          *
          * @param url   the url to connect to the InfluxDB
          * @param token the token to use for the authorization
@@ -90,7 +106,7 @@ class InfluxDBClientKotlinFactory {
         }
 
         /**
-         * Create a instance of the InfluxDB 2.0 reactive client.
+         * Create an instance of the InfluxDB 2.0 reactive client.
          *
          * @param options the connection configuration
          * @return client

client-kotlin/src/test/kotlin/org/influxdata/client/kotlin/InfluxDBClientKotlinFactoryTest.kt

@@ -21,22 +21,52 @@
  */
 package org.influxdata.client.kotlin
 
+import okhttp3.OkHttpClient
+import org.assertj.core.api.Assertions
 import org.assertj.core.api.AssertionsForClassTypes
+import org.influxdata.LogLevel
+import org.influxdata.client.InfluxDBClientOptions
+import org.influxdata.client.internal.AbstractInfluxDBClient
+import org.influxdata.test.AbstractTest
 import org.junit.jupiter.api.Test
 import org.junit.platform.runner.JUnitPlatform
 import org.junit.runner.RunWith
+import retrofit2.Retrofit
 
 /**
  * @author Jakub Bednar (bednar@github) (30/10/2018 08:32)
  */
 @RunWith(JUnitPlatform::class)
-class InfluxDBClientKotlinFactoryTest {
+class InfluxDBClientKotlinFactoryTest: AbstractTest() {
 
     @Test
     fun connect()
     {
-        val client = InfluxDBClientKotlinFactory.create("http://localhost:8093")
+        val client = InfluxDBClientKotlinFactory.create("http://localhost:9999")
 
         AssertionsForClassTypes.assertThat<InfluxDBClientKotlin>(client).isNotNull
     }
+
+    @Test
+    @Throws(NoSuchFieldException::class, IllegalAccessException::class)
+    fun loadFromProperties() {
+
+        val influxDBClient = InfluxDBClientKotlinFactory.create()
+
+        val options = getDeclaredField<InfluxDBClientOptions>(influxDBClient, "options", AbstractInfluxDBClient::class.java)
+
+        Assertions.assertThat(options.url).isEqualTo("http://localhost:9999")
+        Assertions.assertThat(options.org).isEqualTo("my-org")
+        Assertions.assertThat(options.bucket).isEqualTo("my-bucket")
+        Assertions.assertThat(options.token).isEqualTo("my-token".toCharArray())
+        AssertionsForClassTypes.assertThat<LogLevel>(options.logLevel).isEqualTo(LogLevel.BASIC)
+        AssertionsForClassTypes.assertThat<LogLevel>(influxDBClient.getLogLevel()).isEqualTo(LogLevel.BASIC)
+
+        val retrofit = getDeclaredField<Retrofit>(influxDBClient, "retrofit", AbstractInfluxDBClient::class.java)
+        val okHttpClient = retrofit.callFactory() as OkHttpClient
+
+        Assertions.assertThat(okHttpClient.readTimeoutMillis()).isEqualTo(5000)
+        Assertions.assertThat(okHttpClient.writeTimeoutMillis()).isEqualTo(60000)
+        Assertions.assertThat(okHttpClient.connectTimeoutMillis()).isEqualTo(5000)
+    }
 }

client-kotlin/src/test/resources/influx2.properties

@@ -0,0 +1,30 @@
+#
+# The MIT License
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+
+influx2.url=http://localhost:9999
+influx2.org=my-org
+influx2.bucket=my-bucket
+influx2.token=my-token
+influx2.logLevel=BASIC
+influx2.readTimeout=5s
+influx2.writeTimeout=1m
+influx2.connectTimeout=5s

client-legacy/src/main/java/org/influxdata/client/flux/FluxClientFactory.java

@@ -27,7 +27,7 @@
 import org.influxdata.client.flux.internal.FluxApiImpl;
 
 /**
- * The Factory that creates a instance of a Flux client.
+ * The Factory that creates an instance of a Flux client.
  *
  * @author Jakub Bednar (bednar@github) (31/07/2018 13:11)
  */
@@ -37,7 +37,7 @@ private FluxClientFactory() {
     }
 
     /**
-     * Create a instance of the Flux client.
+     * Create an instance of the Flux client.
      *
      * @param connectionString the connectionString to connect to InfluxDB.
      * @return client
@@ -54,7 +54,7 @@ public static FluxClient create(@Nonnull final String connectionString) {
     }
 
     /**
-     * Create a instance of the Flux client.
+     * Create an instance of the Flux client.
      *
      * @param options the connection configuration
      * @return client

client-reactive/README.md

@@ -248,6 +248,45 @@ public class WriteEvery10Seconds {
 ```
 ## Advanced Usage
 
+### Client configuration file
+
+A client can be configured via configuration file. The configuration file has to be named as `influx2.properties` and has to be in root of classpath.
+
+The following options are supported:
+
+| Property name             | default   | description |
+| --------------------------|-----------|-------------| 
+| influx2.url               | -         | the url to connect to InfluxDB |
+| influx2.org               | -         | default destination organization for writes and queries |
+| influx2.bucket            | -         | default destination bucket for writes |
+| influx2.token             | -         | the token to use for the authorization |
+| influx2.logLevel          | NONE      | rest client verbosity level |
+| influx2.readTimeout       | 10000 ms  | read timeout |
+| influx2.writeTimeout      | 10000 ms  | write timeout |
+| influx2.connectTimeout    | 10000 ms  | socket timeout |
+
+The `influx2.readTimeout`, `influx2.writeTimeout` and `influx2.connectTimeout` supports `ms`, `s` and `m` as unit. Default is milliseconds.
+
+
+##### Configuration example
+
+```properties
+influx2.url=http://localhost:9999
+influx2.org=my-org
+influx2.bucket=my-bucket
+influx2.token=my-token
+influx2.logLevel=BODY
+influx2.readTimeout=5s
+influx2.writeTimeout=10s
+influx2.connectTimeout=5s
+```
+
+and then:
+
+```java
+InfluxDBClientReactive influxDBClient = InfluxDBClientReactiveFactory.create();
+```
+
 ### Client connection string
 
 A client can be constructed using a connection string that can contain the InfluxDBClientOptions parameters encoded into the URL.  
@@ -258,13 +297,17 @@ InfluxDBClientReactive influxDBClient = InfluxDBClientReactiveFactory
 ```
 The following options are supported:
 
-| Property name | default | description |
-| --------------|-------------|-------------| 
-| readTimeout       | 10000 ms| read timeout |
-| writeTimeout      | 10000 ms| write timeout |
-| connectTimeout    | 10000 ms| socket timeout |
-| logLevel          | NONE | rest client verbosity level |
-
+| Property name     | default   | description |
+| ------------------|-----------|-------------| 
+| org               | -         | default destination organization for writes and queries |
+| bucket            | -         | default destination bucket for writes |
+| token             | -         | the token to use for the authorization |
+| logLevel          | NONE      | rest client verbosity level |
+| readTimeout       | 10000 ms  | read timeout |
+| writeTimeout      | 10000 ms  | write timeout |
+| connectTimeout    | 10000 ms  | socket timeout |
+
+The `readTimeout`, `writeTimeout` and `connectTimeout` supports `ms`, `s` and `m` as unit. Default is milliseconds.
 
 ### Gzip support
 `InfluxDBClientReactive` does not enable gzip compress for http request body by default. If you want to enable gzip to reduce transfer data's size, you can call: