/*
* 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.solr.internal.csv.writer;
import java.io.Writer;
import java.util.Arrays;
import java.util.Map;
/**
* CSVWriter
*
*/
public class CSVWriter {
/** The CSV config **/
private CSVConfig config;
/** The writer **/
private Writer writer;
/**
*
*/
public CSVWriter() {
}
public CSVWriter(CSVConfig config) {
setConfig(config);
}
public void writeRecord(Map map) {
CSVField[] fields = config.getFields();
try {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < fields.length; i++) {
Object o = map.get(fields[i].getName());
if (o != null) {
String value = o.toString();
value = writeValue(fields[i], value);
sb.append(value);
}
if (!config.isDelimiterIgnored() && fields.length != (i+1)) {
sb.append(config.getDelimiter());
}
}
if (config.isEndTrimmed()) {
for (int i = sb.length()-1; i >= 0; i--) {
System.out.println("i : " + i);
if (Character.isWhitespace(sb.charAt(i))) {
sb.deleteCharAt(i);
} else {
break;
}
}
}
sb.append("\n");
String line = sb.toString();
writer.write(line);
} catch(Exception e) {
e.printStackTrace();
}
}
protected String writeValue(CSVField field, String value) throws Exception {
if (config.isFixedWidth()) {
if (value.length() < field.getSize()) {
int fillPattern = config.getFill();
if (field.overrideFill()) {
fillPattern = field.getFill();
}
StringBuilder sb = new StringBuilder();
int fillSize = (field.getSize() - value.length());
char[] fill = new char[fillSize];
Arrays.fill(fill, config.getFillChar());
if (fillPattern == CSVConfig.FILLLEFT) {
sb.append(fill);
sb.append(value);
value = sb.toString();
} else {
// defaults to fillpattern FILLRIGHT when fixedwidth is used
sb.append(value);
sb.append(fill);
value = sb.toString();
}
} else if (value.length() > field.getSize()) {
// value to big..
value = value.substring(0, field.getSize());
}
if (!config.isValueDelimiterIgnored()) {
// add the value delimiter..
value = config.getValueDelimiter()+value+config.getValueDelimiter();
}
}
return value;
}
/**
* @return the CVSConfig or null if not present
*/
public CSVConfig getConfig() {
return config;
}
/**
* Set the CSVConfig
* @param config the CVSConfig
*/
public void setConfig(CSVConfig config) {
this.config = config;
}
/**
* Set the writer to write the CSV file to.
* @param writer the writer.
*/
public void setWriter(Writer writer) {
this.writer = writer;
}
}