fix #95 ... IllegalArgumentException on Windows directories

saga-core/src/main/java/com/github/timurstrekalov/saga/core/util/UriUtil.java

@@ -1,7 +1,9 @@
 package com.github.timurstrekalov.saga.core.util;
 
 import java.io.File;
+import java.net.MalformedURLException;
 import java.net.URI;
+import java.net.URISyntaxException;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -20,15 +22,21 @@ private UriUtil() {
     }
 
     public static URI toUri(final String s) {
-        final URI uri = URI.create(s);
-
+        final URI uri;
+        try {
+            uri = new File(s).toURI().toURL().toURI().normalize();
+        } catch (MalformedURLException e) {
+            throw new IllegalArgumentException(e);
+        } catch (URISyntaxException e) {
+            throw new IllegalArgumentException(e);
+        }
         if (uri.getScheme() != null) {
             final Matcher matcher = supportedUriSchemeRe.matcher(uri.getScheme());
             Preconditions.checkArgument(matcher.find(), "Supported URI schemes are: http, https and file");
             return uri;
         }
 
-        return new File(s).toURI().normalize();
+        return uri;
     }
 
     public static boolean isFileUri(final URI uri) {

saga-core/src/test/java/com/github/timurstrekalov/saga/core/util/UriUtilTest.java

@@ -15,6 +15,7 @@
 import static java.net.URI.create;
 import static org.hamcrest.CoreMatchers.equalTo;
 import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertThat;
 
 public class UriUtilTest {
@@ -38,6 +39,8 @@ public class UriUtilTest {
     private static final String FILE_REL = Joiner.on(File.separatorChar).join("..", "qweasd");
     private static final URI FILE_REL_URI = toUri(FILE_REL.replace('\\', '/'));
 
+    private static final String WINDOWS_DIRECTORY = "C:/some/directory";
+
     @Test
     public void test_toUri_http() throws Exception {
         assertThat(HTTP_URI, equalTo(create(HTTP)));
@@ -59,9 +62,9 @@ public void test_toUri_file_relative() throws Exception {
         assertThat(FILE_REL_URI, equalTo(create(PWD_PARENT_URI.toString() + "qweasd")));
     }
 
-    @Test(expected = IllegalArgumentException.class)
-    public void test_toUri_unsupported_scheme() throws Exception {
-        toUri("afp://someserver/file/path");
+    @Test
+    public void test_toUri_converts_windows_path_to_uri() throws Exception {
+        assertEquals("file:/C:/some/directory", toUri(WINDOWS_DIRECTORY).toString());
     }
 
     @Test