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From ahu...@apache.org
Subject git commit: New String Util
Date Fri, 31 Aug 2012 01:57:17 GMT
Updated Branches:
  refs/heads/javelin c0ccabb5a -> 28982486e


New String Util


Project: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/commit/28982486
Tree: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/tree/28982486
Diff: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/diff/28982486

Branch: refs/heads/javelin
Commit: 28982486e7d275c69241b16660f5c8715fbdc2b1
Parents: c0ccabb
Author: Alex Huang <alex.huang@citrix.com>
Authored: Thu Aug 30 18:56:35 2012 -0700
Committer: Alex Huang <alex.huang@citrix.com>
Committed: Thu Aug 30 18:56:35 2012 -0700

----------------------------------------------------------------------
 utils/src/com/cloud/utils/StringUtils.java |  158 ++++++++++++----------
 1 files changed, 86 insertions(+), 72 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/28982486/utils/src/com/cloud/utils/StringUtils.java
----------------------------------------------------------------------
diff --git a/utils/src/com/cloud/utils/StringUtils.java b/utils/src/com/cloud/utils/StringUtils.java
index 0f0ef05..2b99c89 100644
--- a/utils/src/com/cloud/utils/StringUtils.java
+++ b/utils/src/com/cloud/utils/StringUtils.java
@@ -23,10 +23,10 @@ import java.util.List;
 // StringUtils exists in Apache Commons Lang, but rather than import the entire JAR to our
system, for now
 // just implement the method needed
 public class StringUtils {
-	private static final char[] hexChar = {
+    private static final char[] hexChar = {
         '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
     };
-	
+
     public static String join(Iterable<? extends Object> iterable, String delim) {
         StringBuilder sb = new StringBuilder();
         if (iterable != null) {
@@ -42,90 +42,104 @@ public class StringUtils {
         }
         return sb.toString();
     }
-    
-    
-	/**
-	 * @param tags
-	 * @return List of tags
-	 */
-    
+
+
+    /**
+     * @param tags
+     * @return List of tags
+     */
+
     public static List<String> csvTagsToList(String tags) {
-    	List<String> tagsList = new ArrayList<String>();
-    	
-    	if (tags != null) {
+        List<String> tagsList = new ArrayList<String>();
+
+        if (tags != null) {
             String[] tokens = tags.split(",");
             for (int i = 0; i < tokens.length; i++) {
                 tagsList.add(tokens[i].trim());
             }
         }
-    	
-    	return tagsList;
+
+        return tagsList;
     }
-    
-	
+
+
     /**
-	 * Converts a List of tags to a comma separated list
-	 * @param tags
-	 * @return String containing a comma separated list of tags
-	 */
-    
+     * Converts a List of tags to a comma separated list
+     * @param tags
+     * @return String containing a comma separated list of tags
+     */
+
     public static String listToCsvTags(List<String> tagsList) {
-    	String tags = "";
-    	if (tagsList.size() > 0) {
-    		for (int i = 0; i < tagsList.size(); i++) {
-    			tags += tagsList.get(i);
-    			if (i != tagsList.size() - 1) {
-    				tags += ",";
-    			}
-    		}
-    	} 
-    	
-    	return tags;
+        String tags = "";
+        if (tagsList.size() > 0) {
+            for (int i = 0; i < tagsList.size(); i++) {
+                tags += tagsList.get(i);
+                if (i != tagsList.size() - 1) {
+                    tags += ",";
+                }
+            }
+        } 
+
+        return tags;
     }        
-    
+
     public static String getExceptionStackInfo(Throwable e) {
-    	StringBuffer sb = new StringBuffer();
-    	
-    	sb.append(e.toString()).append("\n");
-    	StackTraceElement[] elemnents = e.getStackTrace();
-    	for(StackTraceElement element : elemnents) {
-    		sb.append(element.getClassName()).append(".");
-    		sb.append(element.getMethodName()).append("(");
-    		sb.append(element.getFileName()).append(":");
-    		sb.append(element.getLineNumber()).append(")");
-    		sb.append("\n");
-    	}
-    	
-    	return sb.toString();
+        StringBuffer sb = new StringBuffer();
+
+        sb.append(e.toString()).append("\n");
+        StackTraceElement[] elemnents = e.getStackTrace();
+        for(StackTraceElement element : elemnents) {
+            sb.append(element.getClassName()).append(".");
+            sb.append(element.getMethodName()).append("(");
+            sb.append(element.getFileName()).append(":");
+            sb.append(element.getLineNumber()).append(")");
+            sb.append("\n");
+        }
+
+        return sb.toString();
     }
-    
+
     public static String unicodeEscape(String s) {
-    	StringBuilder sb = new StringBuilder();
-    	for (int i = 0; i < s.length(); i++) {
-    	    char c = s.charAt(i);
-    	    if ((c >> 7) > 0) {
-	    		sb.append("\\u");
-	    		sb.append(hexChar[(c >> 12) & 0xF]); // append the hex character for the
left-most 4-bits
-	    		sb.append(hexChar[(c >> 8) & 0xF]);  // hex for the second group of 4-bits
from the left
-	    		sb.append(hexChar[(c >> 4) & 0xF]);  // hex for the third group
-	    		sb.append(hexChar[c & 0xF]);         // hex for the last group, e.g., the right
most 4-bits
-    	    }
-    	    else {
-	    		sb.append(c);
-    	    }
-    	}
-    	return sb.toString();
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < s.length(); i++) {
+            char c = s.charAt(i);
+            if ((c >> 7) > 0) {
+                sb.append("\\u");
+                sb.append(hexChar[(c >> 12) & 0xF]); // append the hex character
for the left-most 4-bits
+                sb.append(hexChar[(c >> 8) & 0xF]);  // hex for the second group
of 4-bits from the left
+                sb.append(hexChar[(c >> 4) & 0xF]);  // hex for the third group
+                sb.append(hexChar[c & 0xF]);         // hex for the last group, e.g.,
the right most 4-bits
+            }
+            else {
+                sb.append(c);
+            }
+        }
+        return sb.toString();
     }
-    
+
     public static String getMaskedPasswordForDisplay(String password) {
-    	if(password == null || password.isEmpty())
-    		return "*";
-    	
-    	StringBuffer sb = new StringBuffer();
-    	sb.append(password.charAt(0));
-    	for(int i = 1; i < password.length(); i++)
-    		sb.append("*");
-    	
-    	return sb.toString();
+        if(password == null || password.isEmpty())
+            return "*";
+
+        StringBuffer sb = new StringBuffer();
+        sb.append(password.charAt(0));
+        for(int i = 1; i < password.length(); i++)
+            sb.append("*");
+
+        return sb.toString();
+    }
+
+    public static int formatForOutput(String text, int start, int columns, char separator)
{
+        if (start >= text.length()) {
+            return -1;
+        }
+
+        int end = start + columns;
+        if (end > text.length()) {
+            end = text.length();
+        }
+        String searchable = text.substring(start, end);
+        int found = searchable.lastIndexOf(separator);
+        return found > 0 ? found :  end - start;
     }
 }


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