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A generic command shell with a client and server part.
/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see data )
{
return templateString( templateString, "\\$", data );
}
public static String templateString( String templateString,
String variablePrefix, Map data )
{
// Sort data strings on length.
Map> lengthMap =
new HashMap>();
int longest = 0;
for ( String key : data.keySet() )
{
int length = key.length();
if ( length > longest )
{
longest = length;
}
List innerList = null;
Integer innerKey = Integer.valueOf( length );
if ( lengthMap.containsKey( innerKey ) )
{
innerList = lengthMap.get( innerKey );
}
else
{
innerList = new ArrayList();
lengthMap.put( innerKey, innerList );
}
innerList.add( key );
}
// Replace it.
String result = templateString;
for ( int i = longest; i >= 0; i-- )
{
Integer lengthKey = Integer.valueOf( i );
if ( !lengthMap.containsKey( lengthKey ) )
{
continue;
}
List list = lengthMap.get( lengthKey );
for ( String key : list )
{
Object value = data.get( key );
if ( value != null )
{
String replacement = data.get( key ).toString();
String regExpMatchString = variablePrefix + key;
result = result.replaceAll( regExpMatchString, replacement );
}
}
}
return result;
}
public static String lastWordOrQuoteOf( String text, boolean preserveQuotation )
{
String[] quoteParts = text.split( "\"" );
String lastPart = quoteParts[quoteParts.length-1];
boolean isWithinQuotes = quoteParts.length % 2 == 0;
String lastWord = null;
if ( isWithinQuotes )
{
lastWord = lastPart;
if ( preserveQuotation )
{
lastWord = "\"" + lastWord + (text.endsWith( "\"" ) ? "\"" : "" );
}
}
else
{
String[] lastPartParts = splitAndKeepEscapedSpaces( lastPart, preserveQuotation );
lastWord = lastPartParts[lastPartParts.length-1];
}
return lastWord;
}
public static String[] splitAndKeepEscapedSpaces( String string, boolean preserveEscapes )
{
Collection result = new ArrayList();
StringBuilder current = new StringBuilder();
for ( int i = 0; i < string.length(); i++ )
{
char ch = string.charAt( i );
if ( ch == ' ' )
{
boolean isGluedSpace = i > 0 && string.charAt( i-1 ) == '\\';
if ( !isGluedSpace )
{
result.add( current.toString() );
current = new StringBuilder();
continue;
}
}
if ( preserveEscapes || ch != '\\' )
{
current.append( ch );
}
}
if ( current.length() > 0 )
{
result.add( current.toString() );
}
return result.toArray( new String[result.size()] );
}
public static String multiplyString( String string, int times )
{
StringBuilder result = new StringBuilder();
for ( int i = 0; i < times; i++ ) result.append( string );
return result.toString();
}
public static String removeSpaces( String command )
{
while ( command.length() > 0 && command.charAt( 0 ) == ' ' ) command = command.substring( 1 );
while ( command.length() > 0 && command.charAt( command.length()-1 ) == ' ' ) command = command.substring( 0, command.length()-1 );
return command;
}
/**
* Tokenizes a string, regarding quotes.
*
* @param string the string to tokenize.
* @return the tokens from the line.
*/
public static String[] tokenizeStringWithQuotes( String string )
{
return tokenizeStringWithQuotes( string, true );
}
/**
* Tokenizes a string, regarding quotes. Examples:
*
* o '"One two"' ==> [ "One two" ]
* o 'One two' ==> [ "One", "two" ]
* o 'One "two three" four' ==> [ "One", "two three", "four" ]
*
* @param string the string to tokenize.
* @param trim whether or not to trim each token.
* @return the tokens from the line.
*/
public static String[] tokenizeStringWithQuotes( String string, boolean trim )
{
if ( trim )
{
string = string.trim();
}
ArrayList result = new ArrayList();
string = string.trim();
boolean inside = string.startsWith( "\"" );
StringTokenizer quoteTokenizer = new StringTokenizer( string, "\"" );
while ( quoteTokenizer.hasMoreTokens() )
{
String token = quoteTokenizer.nextToken();
if ( trim )
{
token = token.trim();
}
if ( token.length() == 0 )
{
// Skip it
}
else if ( inside )
{
// Don't split
result.add( token );
}
else
{
Collections.addAll( result, TextUtil.splitAndKeepEscapedSpaces( token, false ) );
}
inside = !inside;
}
return result.toArray( new String[result.size()] );
}
public static String stripFromQuotes( String string )
{
if ( string != null )
{
if ( string.startsWith( "\"" ) && string.endsWith( "\"" ) )
{
return string.substring( 1, string.length()-1 );
}
}
return string;
}
}
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