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//
// ========================================================================
// Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.toolchain.test;
/**
* Collection of utility methods for manipulating Strings for zen purposes.
*/
public final class StringMangler
{
/**
* Condenses a classname by stripping down the package name to just the first character of each package name
* segment.
*
* <pre>
* Examples:
* "org.eclipse.jetty.test.FooTest" = "oejt.FooTest"
* "org.eclipse.jetty.server.logging.LogTest" = "oejsl.LogTest"
* </pre>
*
* @param classname
* the fully qualified class name
* @return the condensed name
*/
public static String condensePackageString(String classname)
{
String parts[] = classname.split("\\.");
StringBuilder dense = new StringBuilder();
for (int i = 0; i < (parts.length - 1); i++)
{
dense.append(parts[i].charAt(0));
}
dense.append('.').append(parts[parts.length - 1]);
return dense.toString();
}
/**
* Smash a long string to fit within the max string length, by taking the middle section of the string and replacing them with an ellipsis "..."
*
* <pre>
* Examples:
* .maxStringLength( 9, "Eatagramovabits") == "Eat...its"
* .maxStringLength(10, "Eatagramovabits") == "Eat...bits"
* .maxStringLength(11, "Eatagramovabits") == "Eata...bits"
* </pre>
*
* @param max
* the maximum size of the string (minimum size supported is 9)
* @param raw
* the raw string to smash
* @return the ellipsis'd version of the string.
*/
public static String maxStringLength(int max, String raw)
{
int length = raw.length();
if (length <= max)
{
// already short enough
return raw;
}
if (max < 9)
{
// minimum supported
return raw.substring(0,max);
}
StringBuilder ret = new StringBuilder();
int startLen = (int)Math.round((double)max / (double)3);
ret.append(raw.substring(0,startLen));
ret.append("...");
ret.append(raw.substring(length - (max - startLen - 3)));
return ret.toString();
}
}
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