Add examples for 1.5 driver documentation

Author: Zhen

examples/src/main/java/org/neo4j/docs/driver/ConfigConnectionPoolExample.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2002-2017 "Neo Technology,"
+ * Network Engine for Objects in Lund AB [http://neotechnology.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * 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.neo4j.docs.driver;
+
+import java.util.concurrent.TimeUnit;
+
+import org.neo4j.driver.v1.AuthTokens;
+import org.neo4j.driver.v1.Config;
+import org.neo4j.driver.v1.Driver;
+import org.neo4j.driver.v1.GraphDatabase;
+import org.neo4j.driver.v1.StatementResult;
+
+public class ConfigConnectionPoolExample  implements AutoCloseable
+{
+    private final Driver driver;
+
+    // tag::config-connection-pool[]
+    public ConfigConnectionPoolExample( String uri, String user, String password )
+    {
+        driver = GraphDatabase.driver( uri, AuthTokens.basic( user, password ), Config.build()
+                .withMaxConnectionLifetime( 30, TimeUnit.MINUTES )
+                .withMaxConnectionPoolSize( 50 )
+                .withConnectionAcquisitionTimeout( 2, TimeUnit.MINUTES )
+                .toConfig() );
+    }
+    // end::config-connection-pool[]
+
+    @Override
+    public void close() throws Exception
+    {
+        driver.close();
+    }
+
+    public boolean canConnect()
+    {
+        StatementResult result = driver.session().run( "RETURN 1" );
+        return result.single().get( 0 ).asInt() == 1;
+    }
+}

examples/src/main/java/org/neo4j/docs/driver/ConfigLoadBalancingStrategyExample.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2002-2017 "Neo Technology,"
+ * Network Engine for Objects in Lund AB [http://neotechnology.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * 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.neo4j.docs.driver;
+
+import org.neo4j.driver.v1.AuthTokens;
+import org.neo4j.driver.v1.Config;
+import org.neo4j.driver.v1.Driver;
+import org.neo4j.driver.v1.GraphDatabase;
+import org.neo4j.driver.v1.StatementResult;
+
+public class ConfigLoadBalancingStrategyExample implements AutoCloseable
+{
+    private final Driver driver;
+
+    // tag::config-load-balancing-strategy[]
+    public ConfigLoadBalancingStrategyExample( String uri, String user, String password )
+    {
+        driver = GraphDatabase.driver( uri, AuthTokens.basic( user, password ), Config.build()
+                .withLoadBalancingStrategy( Config.LoadBalancingStrategy.LEAST_CONNECTED )
+                .toConfig() );
+    }
+    // end::config-load-balancing-strategy[]
+
+    @Override
+    public void close() throws Exception
+    {
+        driver.close();
+    }
+
+    public boolean canConnect()
+    {
+        StatementResult result = driver.session().run( "RETURN 1" );
+        return result.single().get( 0 ).asInt() == 1;
+    }
+}

examples/src/test/java/org/neo4j/docs/driver/ExamplesIT.java

@@ -122,6 +122,29 @@ public void testShouldRunAutocommitTransactionExample() throws Exception
         }
     }
 
+    @Test
+    public void testShouldRunConfigConnectionPoolExample() throws Exception
+    {
+        // Given
+        try ( ConfigConnectionPoolExample example = new ConfigConnectionPoolExample( uri, USER, PASSWORD ) )
+        {
+            // Then
+            assertTrue( example.canConnect() );
+        }
+    }
+
+    @Test
+    public void testShouldRunConfigLoadBalancingStrategyExample() throws Exception
+    {
+        // Given
+        try ( ConfigLoadBalancingStrategyExample example =
+                      new ConfigLoadBalancingStrategyExample( uri, USER, PASSWORD ) )
+        {
+            // Then
+            assertTrue( example.canConnect() );
+        }
+    }
+
     @Test
     public void testShouldRunBasicAuthExample() throws Exception
     {