From be28697467867e6da06c81d0d771d87ab9fdf134 Mon Sep 17 00:00:00 2001
From: yukihane <yukihane.feather@gmail.com>
Date: Sun, 21 Aug 2011 11:43:55 +0900
Subject: [PATCH] =?utf8?q?=E5=8B=95=E7=94=BBID=E6=8A=BD=E5=87=BA=E3=83=A1?=
 =?utf8?q?=E3=82=BD=E3=83=83=E3=83=89=E3=82=92=E3=83=90=E3=83=83=E3=82=AF?=
 =?utf8?q?=E3=83=9D=E3=83=BC=E3=83=88?=
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
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---
 frontend/src/yukihane/Util.java | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/frontend/src/yukihane/Util.java b/frontend/src/yukihane/Util.java
index 6c8175c..237b90b 100644
--- a/frontend/src/yukihane/Util.java
+++ b/frontend/src/yukihane/Util.java
@@ -1,6 +1,9 @@
 /* $Id$ */
 package yukihane;
 
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 /**
  * nicobrowser.util.Utilより, 必要なものをピックアップしたクラス.
  * @author yuki
@@ -22,4 +25,16 @@ public class Util {
         }
         return contentType.split("/")[1];
     }
+
+    public static String getVideoId(final String alterId) {
+        final int startIdIdx = alterId.lastIndexOf("/") + 1;
+        final String altId = alterId.substring(startIdIdx);
+        final Pattern idPattern = Pattern.compile("([a-z]*\\d+)");
+        final Matcher idMatcher = idPattern.matcher(altId);
+        if (!idMatcher.find()) {
+            throw new IllegalArgumentException("URL/IDの指定が不正です: " + alterId);
+        }
+
+        return idMatcher.group(1);
+    }
 }
-- 
2.11.0