add WebStatFilter's exclusions, support /foo*, *.html, /bar/index.html

src/main/java/com/alibaba/druid/util/StringUtils.java

@@ -1,7 +1,11 @@
 package com.alibaba.druid.util;
 
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.LinkedHashMap;
+import java.util.List;
 import java.util.Map;
+import java.util.StringTokenizer;
 
 import com.alibaba.druid.support.logging.Log;
 import com.alibaba.druid.support.logging.LogFactory;
@@ -97,6 +101,85 @@ public class StringUtils {
         return parameters;
     }
 
+    /**
+     * Tokenize the given String into a String array via a StringTokenizer. Trims tokens and omits empty tokens.
+     * <p>
+     * The given delimiters string is supposed to consist of any number of delimiter characters. Each of those
+     * characters can be used to separate tokens. A delimiter is always a single character; for multi-character
+     * delimiters, consider using <code>delimitedListToStringArray</code>
+     * <p/>
+     * <p>
+     * Copied from the Spring Framework while retaining all license, copyright and author information.
+     * 
+     * @param str the String to tokenize
+     * @param delimiters the delimiter characters, assembled as String (each of those characters is individually
+     * considered as delimiter).
+     * @return an array of the tokens
+     * @see java.util.StringTokenizer
+     * @see java.lang.String#trim()
+     */
+    public static String[] tokenizeToStringArray(String str, String delimiters) {
+        return tokenizeToStringArray(str, delimiters, true, true);
+    }
+
+    /**
+     * Tokenize the given String into a String array via a StringTokenizer.
+     * <p>
+     * The given delimiters string is supposed to consist of any number of delimiter characters. Each of those
+     * characters can be used to separate tokens. A delimiter is always a single character; for multi-character
+     * delimiters, consider using <code>delimitedListToStringArray</code>
+     * <p/>
+     * <p>
+     * Copied from the Spring Framework while retaining all license, copyright and author information.
+     * 
+     * @param str the String to tokenize
+     * @param delimiters the delimiter characters, assembled as String (each of those characters is individually
+     * considered as delimiter)
+     * @param trimTokens trim the tokens via String's <code>trim</code>
+     * @param ignoreEmptyTokens omit empty tokens from the result array (only applies to tokens that are empty after
+     * trimming; StringTokenizer will not consider subsequent delimiters as token in the first place).
+     * @return an array of the tokens (<code>null</code> if the input String was <code>null</code>)
+     * @see java.util.StringTokenizer
+     * @see java.lang.String#trim()
+     */
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+    public static String[] tokenizeToStringArray(String str, String delimiters, boolean trimTokens,
+                                                 boolean ignoreEmptyTokens) {
+
+        if (str == null) {
+            return null;
+        }
+        StringTokenizer st = new StringTokenizer(str, delimiters);
+        List tokens = new ArrayList();
+        while (st.hasMoreTokens()) {
+            String token = st.nextToken();
+            if (trimTokens) {
+                token = token.trim();
+            }
+            if (!ignoreEmptyTokens || token.length() > 0) {
+                tokens.add(token);
+            }
+        }
+        return toStringArray(tokens);
+    }
+
+    /**
+     * Copy the given Collection into a String array. The Collection must contain String elements only.
+     * <p/>
+     * <p>
+     * Copied from the Spring Framework while retaining all license, copyright and author information.
+     * 
+     * @param collection the Collection to copy
+     * @return the String array (<code>null</code> if the passed-in Collection was <code>null</code>)
+     */
+    @SuppressWarnings({ "unchecked", "rawtypes" })
+    public static String[] toStringArray(Collection collection) {
+        if (collection == null) {
+            return null;
+        }
+        return (String[]) collection.toArray(new String[collection.size()]);
+    }
+
     public static void main(String args[]) {
         System.out.println(JSON.toJSONString(getParameters("test?t=1&f=").get("t")));
     }