1 files changed, 41 insertions, 0 deletions
diff --git a/src/org/traccar/helper/PatternUtil.java b/src/org/traccar/helper/PatternUtil.java
new file mode 100644
index 000000000..e129a1438
--- /dev/null
+++ b/src/org/traccar/helper/PatternUtil.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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 org.traccar.helper;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
+
+public class PatternUtil {
+
+    public static String checkPattern(String pattern, String input) {
+
+        String match = null;
+
+        for (int i = 0; i < pattern.length(); i++) {
+            try {
+                Matcher matcher = Pattern.compile(pattern.substring(0, i) + ".*").matcher(input);
+                if (matcher.matches()) {
+                    match = pattern.substring(0, i);
+                }
+            } catch (PatternSyntaxException e) {
+            }
+        }
+
+        return match;
+    }
+
+}