/*
* Copyright 2007 Kasper B. Graversen
*
* 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 org.supercsv.io;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.supercsv.cellprocessor.ift.CellProcessor;
import org.supercsv.prefs.CsvPreference;
import org.supercsv.util.Util;
/**
* CsvMapWriter writes Maps of Objects to a CSV file.
*
* @author Kasper B. Graversen
* @author James Bassett
*/
public class CsvMapWriter extends AbstractCsvWriter implements ICsvMapWriter {
// temporary storage of processed columns to be written
private final List<Object> processedColumns = new ArrayList<Object>();
/**
* Constructs a new <tt>CsvMapWriter</tt> with the supplied Writer and CSV preferences. Note that the
* <tt>writer</tt> will be wrapped in a <tt>BufferedWriter</tt> before accessed.
*
* @param writer
* the writer
* @param preference
* the CSV preferences
* @throws NullPointerException
* if writer or preference are null
* @since 1.0
*/
public CsvMapWriter(final Writer writer, final CsvPreference preference) {
super(writer, preference);
}
/**
* Constructs a new <tt>CsvMapWriter</tt> with the supplied Writer, CSV preferences and option
* to bufferize the writer.
*
* @param writer
* the writer
* @param preference
* the CSV preferences
* @param bufferizeWriter
* if {@code true}, the <tt>writer</tt> will be wrapped in
* a <tt>BufferedWriter</tt> before accessed.
* @throws NullPointerException
* if writer or preference are null
* @since 1.0
*/
public CsvMapWriter(final Writer writer, final CsvPreference preference, boolean bufferizeWriter) {
super(writer, preference, bufferizeWriter);
}
/**
* {@inheritDoc}
*/
public void write(final Map<String, ?> values, final String... nameMapping) throws IOException {
super.incrementRowAndLineNo();
super.writeRow(Util.filterMapToObjectArray(values, nameMapping));
}
/**
* {@inheritDoc}
*/
public void write(final Map<String, ?> values, final String[] nameMapping, final CellProcessor[] processors)
throws IOException {
super.incrementRowAndLineNo();
// execute the processors for each column
Util.executeCellProcessors(processedColumns, Util.filterMapToList(values, nameMapping), processors,
getLineNumber(), getRowNumber());
super.writeRow(processedColumns);
}
}
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