io.continual.util.data.csv.CsvLineBuilder Maven / Gradle / Ivy
/*
* Copyright 2019, Continual.io
*
* Licensed 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 io.continual.util.data.csv;
import java.util.Date;
public class CsvLineBuilder
{
public CsvLineBuilder ()
{
this ( '"', ',', true );
}
public CsvLineBuilder ( char quoteChar, char sepChar, boolean forceQuotes )
{
fBuilder = new StringBuilder ();
fDoneOne = false;
fQuoteChar = quoteChar;
fSepChar = sepChar;
fForceQuotes = forceQuotes;
}
@Override
public String toString ()
{
return fBuilder.toString ();
}
public CsvLineBuilder appendEmpty ( )
{
return appendLiteral ( "" );
}
public CsvLineBuilder append ( String value )
{
return appendLiteral ( CsvEncoder.encodeForCsv ( value, fQuoteChar, fSepChar, fForceQuotes ) );
}
public CsvLineBuilder append ( long value )
{
return appendLiteral ( Long.toString ( value ) );
}
public CsvLineBuilder append ( boolean value )
{
return appendLiteral ( Boolean.toString ( value ) );
}
public CsvLineBuilder append ( double value )
{
return appendLiteral ( Double.toString ( value ) );
}
public CsvLineBuilder append ( Date value )
{
return appendLiteral ( CsvEncoder.encodeForCsv ( value ) );
}
private final StringBuilder fBuilder;
private final char fQuoteChar;
private final char fSepChar;
private final boolean fForceQuotes;
private boolean fDoneOne;
public CsvLineBuilder appendLiteral ( String val )
{
if ( fDoneOne ) fBuilder.append ( ',' );
fBuilder.append ( val );
fDoneOne = true;
return this;
}
}