openvidu-test-e2e: check ffmpeg installation on @BeforeAll

openvidu-test-e2e/src/test/java/io/openvidu/test/e2e/OpenViduTestAppE2eTest.java

@@ -83,6 +83,7 @@ import io.openvidu.test.e2e.browser.ChromeAndroidUser;
 import io.openvidu.test.e2e.browser.ChromeUser;
 import io.openvidu.test.e2e.browser.FirefoxUser;
 import io.openvidu.test.e2e.browser.OperaUser;
+import io.openvidu.test.e2e.utils.CommandLineExecuter;
 import io.openvidu.test.e2e.utils.MultimediaFileMetadata;
 import io.openvidu.test.e2e.utils.Unzipper;
 
@@ -111,6 +112,16 @@ public class OpenViduTestAppE2eTest {
 
 	@BeforeAll()
 	static void setupAll() {
+
+		String ffmpegOutput = new CommandLineExecuter().executeCommand("which ffmpeg");
+		if (ffmpegOutput == null || ffmpegOutput.isEmpty()) {
+			log.error("ffmpeg package is not installed in the host machine");
+			Assert.fail();
+			return;
+		} else {
+			log.info("ffmpeg is installed and accesible");
+		}
+
 		WebDriverManager.chromedriver().setup();
 		WebDriverManager.firefoxdriver().setup();
 

openvidu-test-e2e/src/test/java/io/openvidu/test/e2e/utils/CommandLineExecuter.java

@@ -0,0 +1,44 @@
+/*
+ * (C) Copyright 2017-2019 OpenVidu (https://openvidu.io/)
+ *
+ * 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 io.openvidu.test.e2e.utils;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+public class CommandLineExecuter {
+
+	public String executeCommand(String command) {
+		String output = "";
+		Process p = null;
+		try {
+			p = Runtime.getRuntime().exec(command);
+			p.waitFor();
+			BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
+			String line = "";
+			while ((line = br.readLine()) != null) {
+				output += line;
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		} finally {
+			p.destroy();
+		}
+		return output;
+	}
+
+}

openvidu-test-e2e/src/test/java/io/openvidu/test/e2e/utils/MultimediaFileMetadata.java

@@ -17,10 +17,6 @@
 
 package io.openvidu.test.e2e.utils;
 
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -32,6 +28,9 @@ public class MultimediaFileMetadata {
 
 	private static final Logger log = LoggerFactory.getLogger(MultimediaFileMetadata.class);
 
+	private CommandLineExecuter executer = new CommandLineExecuter();
+	private JsonParser parser = new JsonParser();
+
 	private JsonObject json;
 	private JsonObject formatJson;
 	private JsonObject audioStreamJson;
@@ -139,22 +138,8 @@ public class MultimediaFileMetadata {
 
 	private JsonObject executeFfprobeCommand(String filePath) {
 		log.info("Running ffprobe command on '{}'", filePath);
-		String jsonLines = "";
+		String cmd = "ffprobe -v quiet -print_format json -show_format -show_streams " + filePath;
-		try {
+		return this.parser.parse(this.executer.executeCommand(cmd)).getAsJsonObject();
-			String s;
-			Process p;
-			p = Runtime.getRuntime().exec("ffprobe -v quiet -print_format json -show_format -show_streams " + filePath);
-			BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
-			while ((s = br.readLine()) != null) {
-				jsonLines += s;
-			}
-			p.waitFor();
-			p.destroy();
-		} catch (IOException | InterruptedException e1) {
-			log.info("Error updateing permissions of jave executable. Error: {}" + e1.getMessage());
-		}
-		JsonParser parser = new JsonParser();
-		return parser.parse(jsonLines).getAsJsonObject();
 	}
 
 	@Override