From 13a3f5bc3e2d25fc76850f86070dc34efe60d77a Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Fri, 07 Sep 2012 22:06:15 -0400
Subject: [PATCH] Draft project pages, project metadata, and RSS feeds
---
src/com/gitblit/utils/StringUtils.java | 193 +++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 165 insertions(+), 28 deletions(-)
diff --git a/src/com/gitblit/utils/StringUtils.java b/src/com/gitblit/utils/StringUtils.java
index a51c157..08fd497 100644
--- a/src/com/gitblit/utils/StringUtils.java
+++ b/src/com/gitblit/utils/StringUtils.java
@@ -16,12 +16,25 @@
package com.gitblit.utils;
import java.io.UnsupportedEncodingException;
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.CharacterCodingException;
+import java.nio.charset.Charset;
+import java.nio.charset.CharsetDecoder;
+import java.nio.charset.IllegalCharsetNameException;
+import java.nio.charset.UnsupportedCharsetException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
+import java.util.LinkedHashSet;
import java.util.List;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
/**
@@ -65,7 +78,7 @@
* @return plain text escaped for html
*/
public static String escapeForHtml(String inStr, boolean changeSpace) {
- StringBuffer retStr = new StringBuffer();
+ StringBuilder retStr = new StringBuilder();
int i = 0;
while (i < inStr.length()) {
if (inStr.charAt(i) == '&') {
@@ -106,7 +119,7 @@
* @return properly escaped url
*/
public static String encodeURL(String inStr) {
- StringBuffer retStr = new StringBuffer();
+ StringBuilder retStr = new StringBuilder();
int i = 0;
while (i < inStr.length()) {
if (inStr.charAt(i) == '/') {
@@ -127,7 +140,7 @@
* @param values
* @return flattened list
*/
- public static String flattenStrings(List<String> values) {
+ public static String flattenStrings(Collection<String> values) {
return flattenStrings(values, " ");
}
@@ -139,7 +152,7 @@
* @param separator
* @return flattened list
*/
- public static String flattenStrings(List<String> values, String separator) {
+ public static String flattenStrings(Collection<String> values, String separator) {
StringBuilder sb = new StringBuilder();
for (String value : values) {
sb.append(value).append(separator);
@@ -165,16 +178,6 @@
return value;
}
return value.substring(0, max - 3) + "...";
- }
-
- /**
- * Returns a trimmed shortlog message.
- *
- * @param string
- * @return trimmed shortlog message
- */
- public static String trimShortLog(String string) {
- return trimString(string, 60);
}
/**
@@ -336,20 +339,24 @@
* @return list of strings
*/
public static List<String> getStringsFromValue(String value, String separator) {
- List<String> strings = new ArrayList<String>();
- try {
- String[] chunks = value.split(separator);
- for (String chunk : chunks) {
- chunk = chunk.trim();
- if (chunk.length() > 0) {
- strings.add(chunk);
- }
- }
- } catch (PatternSyntaxException e) {
- throw new RuntimeException(e);
- }
- return strings;
- }
+ List<String> strings = new ArrayList<String>();
+ try {
+ String[] chunks = value.split(separator + "(?=([^\"]*\"[^\"]*\")*[^\"]*$)");
+ for (String chunk : chunks) {
+ chunk = chunk.trim();
+ if (chunk.length() > 0) {
+ if (chunk.charAt(0) == '"' && chunk.charAt(chunk.length() - 1) == '"') {
+ // strip double quotes
+ chunk = chunk.substring(1, chunk.length() - 1).trim();
+ }
+ strings.add(chunk);
+ }
+ }
+ } catch (PatternSyntaxException e) {
+ throw new RuntimeException(e);
+ }
+ return strings;
+ }
/**
* Validates that a name is composed of letters, digits, or limited other
@@ -487,4 +494,134 @@
String bs = Integer.toHexString((int) (b * 256));
return "#" + rs + gs + bs;
}
+
+ /**
+ * Strips a trailing ".git" from the value.
+ *
+ * @param value
+ * @return a stripped value or the original value if .git is not found
+ */
+ public static String stripDotGit(String value) {
+ if (value.toLowerCase().endsWith(".git")) {
+ return value.substring(0, value.length() - 4);
+ }
+ return value;
+ }
+
+ /**
+ * Count the number of lines in a string.
+ *
+ * @param value
+ * @return the line count
+ */
+ public static int countLines(String value) {
+ if (isEmpty(value)) {
+ return 0;
+ }
+ return value.split("\n").length;
+ }
+
+ /**
+ * Returns the file extension of a path.
+ *
+ * @param path
+ * @return a blank string or a file extension
+ */
+ public static String getFileExtension(String path) {
+ int lastDot = path.lastIndexOf('.');
+ if (lastDot > -1) {
+ return path.substring(lastDot + 1);
+ }
+ return "";
+ }
+
+ /**
+ * Replace all occurences of a substring within a string with
+ * another string.
+ *
+ * From Spring StringUtils.
+ *
+ * @param inString String to examine
+ * @param oldPattern String to replace
+ * @param newPattern String to insert
+ * @return a String with the replacements
+ */
+ public static String replace(String inString, String oldPattern, String newPattern) {
+ StringBuilder sb = new StringBuilder();
+ int pos = 0; // our position in the old string
+ int index = inString.indexOf(oldPattern);
+ // the index of an occurrence we've found, or -1
+ int patLen = oldPattern.length();
+ while (index >= 0) {
+ sb.append(inString.substring(pos, index));
+ sb.append(newPattern);
+ pos = index + patLen;
+ index = inString.indexOf(oldPattern, pos);
+ }
+ sb.append(inString.substring(pos));
+ // remember to append any characters to the right of a match
+ return sb.toString();
+ }
+
+ /**
+ * Decodes a string by trying several charsets until one does not throw a
+ * coding exception. Last resort is to interpret as UTF-8 with illegal
+ * character substitution.
+ *
+ * @param content
+ * @param charsets optional
+ * @return a string
+ */
+ public static String decodeString(byte [] content, String... charsets) {
+ Set<String> sets = new LinkedHashSet<String>();
+ if (!ArrayUtils.isEmpty(charsets)) {
+ sets.addAll(Arrays.asList(charsets));
+ }
+ String value = null;
+ sets.addAll(Arrays.asList("UTF-8", "ISO-8859-1", Charset.defaultCharset().name()));
+ for (String charset : sets) {
+ try {
+ Charset cs = Charset.forName(charset);
+ CharsetDecoder decoder = cs.newDecoder();
+ CharBuffer buffer = decoder.decode(ByteBuffer.wrap(content));
+ value = buffer.toString();
+ break;
+ } catch (CharacterCodingException e) {
+ // ignore and advance to the next charset
+ } catch (IllegalCharsetNameException e) {
+ // ignore illegal charset names
+ } catch (UnsupportedCharsetException e) {
+ // ignore unsupported charsets
+ }
+ }
+ if (value.startsWith("\uFEFF")) {
+ // strip UTF-8 BOM
+ return value.substring(1);
+ }
+ return value;
+ }
+
+ /**
+ * Attempt to extract a repository name from a given url using regular
+ * expressions. If no match is made, then return whatever trails after
+ * the final / character.
+ *
+ * @param regexUrls
+ * @return a repository path
+ */
+ public static String extractRepositoryPath(String url, String... urlpatterns) {
+ for (String urlPattern : urlpatterns) {
+ Pattern p = Pattern.compile(urlPattern);
+ Matcher m = p.matcher(url);
+ while (m.find()) {
+ String repositoryPath = m.group(1);
+ return repositoryPath;
+ }
+ }
+ // last resort
+ if (url.lastIndexOf('/') > -1) {
+ return url.substring(url.lastIndexOf('/') + 1);
+ }
+ return url;
+ }
}
\ No newline at end of file
--
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