Support INFO command in UnifiedJedis (simplified)

src/main/java/redis/clients/jedis/CommandObjects.java

@@ -92,6 +92,16 @@ public final CommandObject<String> configSet(String parameter, String value) {
     return new CommandObject<>(commandArguments(Command.CONFIG).add(Keyword.SET).add(parameter).add(value), BuilderFactory.STRING);
   }
 
+  private final CommandObject<String> INFO_COMMAND_OBJECT = new CommandObject<>(commandArguments(Command.INFO), BuilderFactory.STRING);
+
+  public final CommandObject<String> info() {
+    return INFO_COMMAND_OBJECT;
+  }
+
+  public final CommandObject<String> info(String section) {
+    return new CommandObject<>(commandArguments(Command.INFO).add(section), BuilderFactory.STRING);
+  }
+
   // Key commands
   public final CommandObject<Boolean> exists(String key) {
     return new CommandObject<>(commandArguments(Command.EXISTS).key(key), BuilderFactory.BOOLEAN);

src/main/java/redis/clients/jedis/JedisCluster.java

@@ -353,6 +353,16 @@ public Connection getConnectionFromSlot(int slot) {
   }
 
   // commands
+  @Override
+  public String info() {
+    throw new UnsupportedOperationException("INFO command is not supported from JedisCluster.");
+  }
+
+  @Override
+  public String info(String section) {
+    throw new UnsupportedOperationException("INFO command is not supported from JedisCluster.");
+  }
+
   public long spublish(String channel, String message) {
     return executeCommand(commandObjects.spublish(channel, message));
   }

src/main/java/redis/clients/jedis/UnifiedJedis.java

@@ -353,6 +353,14 @@ public String configSet(String parameter, String value) {
     return checkAndBroadcastCommand(commandObjects.configSet(parameter, value));
   }
 
+  public String info() {
+    return executeCommand(commandObjects.info());
+  }
+
+  public String info(String section) {
+    return executeCommand(commandObjects.info(section));
+  }
+
   // Key commands
   @Override
   public boolean exists(String key) {

src/test/java/redis/clients/jedis/commands/jedis/ClusterValuesCommandsTest.java

@@ -2,6 +2,7 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertThrows;
 import static org.junit.Assert.fail;
 
 import java.util.ArrayList;
@@ -128,6 +129,13 @@ public void pingBroadcast() {
     assertEquals("PONG", cluster.ping());
   }
 
+  @Test
+  public void info() {
+    assertThrows(UnsupportedOperationException.class, () -> cluster.info());
+
+    assertThrows(UnsupportedOperationException.class, () -> cluster.info("server"));
+  }
+
   @Test
   public void flushAllBroadcast() {
     assertNull(cluster.get("foo"));

src/test/java/redis/clients/jedis/commands/unified/pooled/PooledMiscellaneousTest.java

@@ -1,5 +1,6 @@
 package redis.clients.jedis.commands.unified.pooled;
 
+import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertThrows;
@@ -9,6 +10,7 @@
 import java.util.List;
 
 import io.redis.test.annotations.SinceRedisVersion;
+import org.hamcrest.Matchers;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Rule;
@@ -164,4 +166,13 @@ public void broadcastWithError() {
         () -> jedis.functionDelete("xyz"));
     assertEquals("ERR Library not found", error.getMessage());
   }
+
+  @Test
+  public void info() {
+    String info = jedis.info();
+    assertThat(info, Matchers.notNullValue());
+
+    info = jedis.info("server");
+    assertThat(info, Matchers.notNullValue());
+  }
 }