Allow to write lines directly to the database

src/main/java/org/influxdb/InfluxDB.java

@@ -129,6 +129,26 @@ public String value() {
 	 */
 	public void write(final BatchPoints batchPoints);
 
+	/**
+	 * Write a set of Points to the influxdb database with the string records.
+	 *
+	 * {@linkplain "https://github.com/influxdb/influxdb/pull/2696"}
+	 *
+	 * @param records
+	 */
+	public void write(final String database, final String retentionPolicy, final ConsistencyLevel consistency, final String records);
+
+	/**
+	 * Write a set of Points to the influxdb database with the list of string records.
+	 *
+	 * {@linkplain "https://github.com/influxdb/influxdb/pull/2696"}
+	 *
+	 * @param records
+	 */
+	public void write(final String database, final String retentionPolicy, final ConsistencyLevel consistency, final List<String> records);
+
+	/**
+
 	/**
 	 * Execute a query agains a database.
 	 * 

src/main/java/org/influxdb/impl/InfluxDBImpl.java

@@ -5,6 +5,7 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicLong;
 
+import com.google.common.base.Joiner;
 import org.influxdb.InfluxDB;
 import org.influxdb.dto.BatchPoints;
 import org.influxdb.dto.Point;
@@ -153,6 +154,23 @@ public void write(final BatchPoints batchPoints) {
 
 	}
 
+	@Override
+	public void write(final String database, final String retentionPolicy, final ConsistencyLevel consistency, final String records) {
+		this.influxDBService.writePoints(
+				this.username,
+				this.password,
+				database,
+				retentionPolicy,
+				TimeUtil.toTimePrecision(TimeUnit.NANOSECONDS),
+				consistency.value(),
+				new TypedString(records));
+	}
+	@Override
+	public void write(final String database, final String retentionPolicy, final ConsistencyLevel consistency, final List<String> records) {
+		final String joinedRecords = Joiner.on("\n").join(records);
+		write(database, retentionPolicy, consistency, joinedRecords);
+	}
+
 	/**
 	 * {@inheritDoc}
 	 */

src/test/java/org/influxdb/InfluxDBTest.java

@@ -1,6 +1,7 @@
 package org.influxdb;
 
 import java.io.IOException;
+import java.util.Arrays;
 import java.util.List;
 import java.util.logging.Level;
 import java.util.logging.Logger;
@@ -184,6 +185,63 @@ public void testWrite() {
 		this.influxDB.deleteDatabase(dbName);
 	}
 
+    /**
+     * Test writing to the database using string protocol.
+     */
+    @Test(enabled = true)
+    public void testWriteStringData() {
+        String dbName = "write_unittest_" + System.currentTimeMillis();
+        this.influxDB.createDatabase(dbName);
+
+        this.influxDB.write(dbName, "default", InfluxDB.ConsistencyLevel.ONE, "cpu,atag=test idle=90,usertime=9,system=1");
+        Query query = new Query("SELECT * FROM cpu GROUP BY *", dbName);
+        QueryResult result = this.influxDB.query(query);
+        Assert.assertFalse(result.getResults().get(0).getSeries().get(0).getTags().isEmpty());
+        this.influxDB.deleteDatabase(dbName);
+    }
+
+    /**
+     * Test writing multiple records to the database using string protocol.
+     */
+    @Test(enabled = true)
+    public void testWriteMultipleStringData() {
+        String dbName = "write_unittest_" + System.currentTimeMillis();
+        this.influxDB.createDatabase(dbName);
+
+        this.influxDB.write(dbName, "default", InfluxDB.ConsistencyLevel.ONE, "cpu,atag=test1 idle=100,usertime=10,system=1\ncpu,atag=test2 idle=200,usertime=20,system=2\ncpu,atag=test3 idle=300,usertime=30,system=3");
+        Query query = new Query("SELECT * FROM cpu GROUP BY *", dbName);
+        QueryResult result = this.influxDB.query(query);
+
+        Assert.assertEquals(result.getResults().get(0).getSeries().size(), 3);
+        Assert.assertEquals(result.getResults().get(0).getSeries().get(0).getTags().get("atag"), "test1");
+        Assert.assertEquals(result.getResults().get(0).getSeries().get(1).getTags().get("atag"), "test2");
+        Assert.assertEquals(result.getResults().get(0).getSeries().get(2).getTags().get("atag"), "test3");
+        this.influxDB.deleteDatabase(dbName);
+    }
+
+    /**
+     * Test writing multiple separate records to the database using string protocol.
+     */
+    @Test(enabled = true)
+    public void testWriteMultipleStringDataLines() {
+        String dbName = "write_unittest_" + System.currentTimeMillis();
+        this.influxDB.createDatabase(dbName);
+
+        this.influxDB.write(dbName, "default", InfluxDB.ConsistencyLevel.ONE, Arrays.asList(
+                "cpu,atag=test1 idle=100,usertime=10,system=1",
+                "cpu,atag=test2 idle=200,usertime=20,system=2",
+                "cpu,atag=test3 idle=300,usertime=30,system=3"
+        ));
+        Query query = new Query("SELECT * FROM cpu GROUP BY *", dbName);
+        QueryResult result = this.influxDB.query(query);
+
+        Assert.assertEquals(result.getResults().get(0).getSeries().size(), 3);
+        Assert.assertEquals(result.getResults().get(0).getSeries().get(0).getTags().get("atag"), "test1");
+        Assert.assertEquals(result.getResults().get(0).getSeries().get(1).getTags().get("atag"), "test2");
+        Assert.assertEquals(result.getResults().get(0).getSeries().get(2).getTags().get("atag"), "test3");
+        this.influxDB.deleteDatabase(dbName);
+    }
+
 	/**
 	 * Test that creating database which name is composed of numbers only works
 	 */