From ced7b1017def05a9e4c73e1945cb9950c7d0d1a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bart=C5=82omiej=20Pluta?= <bartlomiej.p.pluta@gmail.com>
Date: Tue, 2 Apr 2019 20:04:09 +0200
Subject: [PATCH] 8: Create ProcessExecutor

---
 .../decompiler/process/ProcessExecutor.java   | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 src/main/java/com/bartek/esa/decompiler/process/ProcessExecutor.java

diff --git a/src/main/java/com/bartek/esa/decompiler/process/ProcessExecutor.java b/src/main/java/com/bartek/esa/decompiler/process/ProcessExecutor.java
new file mode 100644
index 0000000..1b59dbd
--- /dev/null
+++ b/src/main/java/com/bartek/esa/decompiler/process/ProcessExecutor.java
@@ -0,0 +1,31 @@
+package com.bartek.esa.decompiler.process;
+
+import com.bartek.esa.error.EsaException;
+import io.vavr.control.Try;
+
+import javax.inject.Inject;
+
+public class ProcessExecutor {
+
+    @Inject
+    public ProcessExecutor() {
+
+    }
+
+    public void execute(String[] command) {
+        Process process = Try.of(() -> Runtime.getRuntime().exec(command))
+                .getOrElseThrow(EsaException::new);
+        waitForProcess(process);
+        checkExitValue(process, command[0]);
+    }
+
+    private void waitForProcess(Process process) {
+        Try.run(process::waitFor).getOrElseThrow(EsaException::new);
+    }
+
+    private void checkExitValue(Process process, String commandName) {
+        if(process.exitValue() != 0) {
+            throw new EsaException("'" + commandName + "' process has finished with non-zero code. Interrupting...");
+        }
+    }
+}