support neo4j driver for jooby

jooby-neo4j/README.md

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+# neo4j driver
+
+[Neo4j](https://neo4j.com/) driver for Jooby.
+
+## exports
+
+* [BoltDBAccess](https://neo4j.com/developer/java/#jcypher)
+
+## dependency
+
+```xml
+<dependency>
+  <groupId>org.jooby</groupId>
+  <artifactId>jooby-neo4j</artifactId>
+  <version>{{version}}</version>
+</dependency>
+```
+
+## usage
+
+application.conf:
+
+```properties
+neo4j.db {
+  uri = "bolt://localhost:7687"
+  username = "neo4j"
+  password = "neo4j1"
+}
+```
+
+```java
+  {
+    use(new Neo4j());
+    get("/", req -> {
+      BoltDBAccess db = require(BoltDBAccess.class);
+      // work with db
+    });
+  }
+```
+
+Default connection info property is ```db``` but of course you can use any other name:
+
+application.conf:
+
+```properties
+neo4j.mydb {
+  uri = "bolt://localhost:7687"
+  username = "neo4j"
+  password = "neo4j1"
+}
+```
+
+```java
+  {
+    use(new Neo4j("mydb"));
+    get("/", req -> {
+      BoltDBAccess db = require(BoltDBAccess.class);
+      // work with db
+    });
+  }
+```
+
+## properties
+
+Properties can be set via ```.conf``` file:
+
+```properties
+neo4j.db.arrayBlockSize = "120"
+```
+
+or programmatically:
+
+```java
+{
+  use(new Neo4j()
+    .properties((properties, config) -> {
+      properties.put(DBProperties.ARRAY_BLOCK_SIZE, "120")
+    })
+  );
+}
+```
+
+### connection URI
+
+Default connection URI is defined by the ```neo4j.db.uri``` property. Neo4j URI looks like:
+
+```properties
+neo4j.db.uri = bolt://host1[:port1]
+```
+
+For more detailed information please check: [Neo4jBoltDrivers](https://neo4j.com/docs/developer-manual/current/drivers/).
+
+# neo4j session store
+
+## dependency
+
+```xml
+<dependency>
+  <groupId>org.jooby</groupId>
+  <artifactId>jooby-neo4j</artifactId>
+  <version>{{version}}</version>
+</dependency>
+```
+
+## usage
+
+```java
+{
+  session(Neo4jSessionStore.class);
+  get("/", req -> {
+   req.session().set("name", "jooby");
+  });
+}
+```
+
+The ```name``` attribute and value will be stored in a [Neo4j](https://neo4j.com/).
+
+## properties
+
+### timeout
+
+By default, a neo4j session will expire after ```30 minutes```. Changing the default timeout is as simple as:
+
+```properties
+# 8 hours
+
+session.timeout = 8h
+
+# 15 seconds
+
+session.timeout = 15
+
+# 120 minutes
+
+session.timeout = 120m
+
+# no timeout
+
+session.timeout = -1
+```
+
+It uses [GraphAware's expire library](https://github.com/graphaware/neo4j-expire) to automatically remove expired sessions.
+
+### session label
+
+It's possible to provide the session label using the `neo4j.session.label` property.
+
+## neo4j.conf
+
+```properties
+###################################################################################################
+
+# neo4j
+
+###################################################################################################
+
+neo4j.db {
+  server_root_uri = "bolt://localhost:7687"
+  array_block_size = "120"
+  pagecache_memory = "1M"
+  string_block_size = "120"
+  username = "****"
+  password = "****"
+}
+
+###################################################################################################
+
+# session datastore
+
+#  databaseDir: "/tmp"
+
+# neo4j.session.label: "sessions"
+
+#  session.timeout: 30m
+```

jooby-neo4j/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+
+  <parent>
+    <groupId>org.jooby</groupId>
+    <artifactId>jooby-project</artifactId>
+    <version>1.1.1</version>
+  </parent>
+
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>jooby-neo4j</artifactId>
+
+  <name>neo4j module</name>
+
+  <build>
+    <plugins>
+      <!-- sure-fire -->
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <configuration>
+          <includes>
+            <include>**/*Test.java</include>
+            <include>**/*Feature.java</include>
+            <include>**/Issue*.java</include>
+          </includes>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
+  <dependencies>
+    <!-- Jooby -->
+    <dependency>
+      <groupId>org.jooby</groupId>
+      <artifactId>jooby</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+
+    <!-- Neo4j -->
+    <dependency>
+      <groupId>net.iot-solutions.graphdb</groupId>
+      <artifactId>jcypher</artifactId>
+      <version>3.7.0</version>
+    </dependency>
+    <dependency>
+      <groupId>com.graphaware.neo4j</groupId>
+      <artifactId>expire</artifactId>
+      <version>3.1.4.49.4</version>
+    </dependency>
+    <dependency>
+      <groupId>com.graphaware.neo4j</groupId>
+      <artifactId>runtime</artifactId>
+      <version>3.1.4.49</version>
+    </dependency>
+
+    <!-- Test Dependencies -->
+    <dependency>
+      <groupId>org.jooby</groupId>
+      <artifactId>jooby</artifactId>
+      <version>${project.version}</version>
+      <scope>test</scope>
+      <classifier>tests</classifier>
+    </dependency>
+
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.easymock</groupId>
+      <artifactId>easymock</artifactId>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.powermock</groupId>
+      <artifactId>powermock-api-easymock</artifactId>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.powermock</groupId>
+      <artifactId>powermock-module-junit4</artifactId>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>org.jooby</groupId>
+      <artifactId>jooby-netty</artifactId>
+      <version>${project.version}</version>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>commons-lang</groupId>
+      <artifactId>commons-lang</artifactId>
+      <version>2.6</version>
+    </dependency>
+  </dependencies>
+
+</project>