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added GlobUtil

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This commit is contained in:
Sebastian Sdorra
2011-10-15 11:17:55 +02:00
parent 845373fa3c
commit 356c933246
2 changed files with 271 additions and 0 deletions
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195
scm-core/src/main/java/sonia/scm/util/GlobUtil.java Normal file
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/**
* Copyright (c) 2010, Sebastian Sdorra
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of SCM-Manager; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* http://bitbucket.org/sdorra/scm-manager
*
*/
package sonia.scm.util;
/**
* Util for pattern matching with glob
* (http://en.wikipedia.org/wiki/Glob_%28programming%29) syntax.
*
* @author Sebastian Sdorra
* @since 1.8
*/
public class GlobUtil
{
/**
* Converts the given glob string to a regular expression string.
*
*
* @param globString string to convert
*
* @return regular expression string
*/
public static String convertGlobToRegEx(String globString)
{
globString = globString.trim();
int strLen = globString.length();
StringBuilder sb = new StringBuilder(strLen);
boolean escaping = false;
int inCurlies = 0;
for (char currentChar : globString.toCharArray())
{
switch (currentChar)
{
case '*' :
if (escaping)
{
sb.append("\\*");
}
else
{
sb.append(".*");
}
escaping = false;
break;
case '?' :
if (escaping)
{
sb.append("\\?");
}
else
{
sb.append('.');
}
escaping = false;
break;
case '.' :
case '(' :
case ')' :
case '+' :
case '|' :
case '^' :
case '$' :
case '@' :
case '%' :
sb.append('\\');
sb.append(currentChar);
escaping = false;
break;
case '\\' :
if (escaping)
{
sb.append("\\\\");
escaping = false;
}
else
{
escaping = true;
}
break;
case '{' :
if (escaping)
{
sb.append("\\{");
}
else
{
sb.append('(');
inCurlies++;
}
escaping = false;
break;
case '}' :
if ((inCurlies > 0) &&!escaping)
{
sb.append(')');
inCurlies--;
}
else if (escaping)
{
sb.append("\\}");
}
else
{
sb.append("}");
}
escaping = false;
break;
case ',' :
if ((inCurlies > 0) &&!escaping)
{
sb.append('|');
}
else if (escaping)
{
sb.append("\\,");
}
else
{
sb.append(",");
}
break;
default :
escaping = false;
sb.append(currentChar);
}
}
return sb.toString();
}
/**
* Returns true if the glob string matches the given value.
*
*
* @param glob glob pattern
* @param value string value
*
* @return true if the glob string matches the given value
*/
public static boolean matches(String glob, String value)
{
return value.matches(convertGlobToRegEx(value));
}
}

76
scm-core/src/test/java/sonia/scm/util/GlobUtilTest.java Normal file
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/**
* Copyright (c) 2010, Sebastian Sdorra
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of SCM-Manager; nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* http://bitbucket.org/sdorra/scm-manager
*
*/
package sonia.scm.util;
//~--- non-JDK imports --------------------------------------------------------
import org.junit.Test;
import static org.junit.Assert.*;
/**
*
* @author Sebastian Sdorra
*/
public class GlobUtilTest
{
/**
* Method description
*
*/
@Test
public void convertGlobToRegExTest()
{
assertEquals("/test/path/.*", GlobUtil.convertGlobToRegEx("/test/path/*"));
assertEquals(".*/somefile\\.txt",
GlobUtil.convertGlobToRegEx("*/somefile.txt"));
assertEquals("a.d", GlobUtil.convertGlobToRegEx("a?d"));
}
/**
* Method description
*
*/
@Test
public void matchesTest()
{
assertTrue(GlobUtil.matches("/test/path/somefile.txt", "/test/path/*"));
assertTrue(GlobUtil.matches("/test/path/somefile.txt", "*/somefile.txt"));
assertTrue(GlobUtil.matches("asd", "a*d"));
assertTrue(GlobUtil.matches("asd", "a?d"));
assertFalse(GlobUtil.matches("asd", "a\\*d"));
assertFalse(GlobUtil.matches("asd", "a\\?d"));
}
}