/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.directory.studio.openldap.syncrepl;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* This class implements a retry.
* <p>
* Format: "[<retry interval> <# of retries>]+"
*/
public class Retry
{
/** The pattern used for parsing */
private static final Pattern pattern = Pattern.compile( "^(([0-9]+) ([0-9]+|\\+))( ([0-9]+) ([0-9]+|\\+))*$" );
/** The pairs */
private List<RetryPair> pairs = new ArrayList<RetryPair>();
/**
* Gets a copy of a Retry object.
*
* @param syncRepl the initial Retry object
* @return a copy of the given Retry object
*/
public static Retry copy( Retry retry )
{
if ( retry != null )
{
Retry retryCopy = new Retry();
for ( RetryPair retryPair : retry.getPairs() )
{
retryCopy.addPair( RetryPair.copy( retryPair ) );
}
return retryCopy;
}
return null;
}
/**
* Gets a copy of the Retry object.
*
* @return a copy of the Retry object
*/
public Retry copy()
{
return Retry.copy( this );
}
/**
* Parses a retry string.
*
* @param s the string
* @return a retry
* @throws ParseException if an error occurs during parsing
*/
public static Retry parse( String s ) throws ParseException
{
// Creating the retry
Retry retry = new Retry();
// Matching the string
Matcher matcher = pattern.matcher( s );
// Checking the result
if ( matcher.find() )
{
// Splitting the string into pieces
String[] pieces = s.split( " " );
// Checking we got a even number of pieces
if ( ( pieces.length % 2 ) == 0 )
{
for ( int i = 0; i < pieces.length; i = i + 2 )
{
retry.addPair( RetryPair.parse( pieces[i] + " " + pieces[i + 1] ) );
}
}
else
{
throw new ParseException( "Unable to parse string '" + s + "' as a valid retry.", 0 );
}
}
else
{
throw new ParseException( "Unable to parse string '" + s + "' as a valid retry.", 0 );
}
return retry;
}
public void addPair( RetryPair pair )
{
pairs.add( pair );
}
public RetryPair[] getPairs()
{
return pairs.toArray( new RetryPair[0] );
}
public void removePair( RetryPair pair )
{
pairs.remove( pair );
}
public void setPairs( RetryPair[] pairs )
{
this.pairs = new ArrayList<RetryPair>();
this.pairs.addAll( Arrays.asList( pairs ) );
}
public int size()
{
return pairs.size();
}
/**
* {@inheritDoc}
*/
public String toString()
{
StringBuilder sb = new StringBuilder();
for ( int i = 0; i < pairs.size(); i++ )
{
sb.append( pairs.get( i ).toString() );
if ( i != ( pairs.size() - 1 ) )
{
sb.append( " " );
}
}
return sb.toString();
}
}