Android Open Source - budget-envelopes C S V Writer

• Back to App/money  ↑

From Project

Back to project page budget-envelopes.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * This file is a part of Budget with Envelopes.
 * Copyright 2013 Michael Howell <michael@notriddle.com>
 */*from w  w w .  j a  va 2  s. c  om*/
 * Budget 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.
 *
 * Budget 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 Budget. If not, see <http://www.gnu.org/licenses/>.
 */

package com.notriddle.budget.csv;

/**
 Copyright 2005 Bytecode Pty Ltd.

 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.
 */

/*
 * The code copied from http://opencsv.sourceforge.net/ via http://secrets-for-android.googlecode.com/
 *
 * While incorporating into secrets, the following changes were made:
 *
 * - removed the following methods to keep the bytecode smaller:
 *   writeAll(), all methods related to sql
 */

import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;

/**
 * A very simple CSV writer released under a commercial-friendly license.
 *
 * @author Glen Smith
 *
 */
public class CSVWriter {

    private PrintWriter pw;

    private char separator;

    private char quotechar;

    private char escapechar;

    private String lineEnd;

    /** The character used for escaping quotes. */
    public static final char DEFAULT_ESCAPE_CHARACTER = '"';

    /** The default separator to use if none is supplied to the constructor. */
    public static final char DEFAULT_SEPARATOR = ',';

    /**
     * The default quote character to use if none is supplied to the
     * constructor.
     */
    public static final char DEFAULT_QUOTE_CHARACTER = '"';

    /** The quote constant to use when you wish to suppress all quoting. */
    public static final char NO_QUOTE_CHARACTER = '\u0000';

    /** The escape constant to use when you wish to suppress all escaping. */
    public static final char NO_ESCAPE_CHARACTER = '\u0000';

    /** Default line terminator uses platform encoding. */
    public static final String DEFAULT_LINE_END = "\n";

    /**
     * Constructs CSVWriter using a comma for the separator.
     *
     * @param writer
     *            the writer to an underlying CSV source.
     */
    public CSVWriter(Writer writer) {
        this(writer, DEFAULT_SEPARATOR, DEFAULT_QUOTE_CHARACTER,
            DEFAULT_ESCAPE_CHARACTER, DEFAULT_LINE_END);
    }

    /**
     * Constructs CSVWriter with supplied separator, quote char, escape char and line ending.
     *
     * @param writer
     *            the writer to an underlying CSV source.
     * @param separator
     *            the delimiter to use for separating entries
     * @param quotechar
     *            the character to use for quoted elements
     * @param escapechar
     *            the character to use for escaping quotechars or escapechars
     * @param lineEnd
     *         the line feed terminator to use
     */
    public CSVWriter(Writer writer, char separator, char quotechar, char escapechar, String lineEnd) {
        this.pw = new PrintWriter(writer);
        this.separator = separator;
        this.quotechar = quotechar;
        this.escapechar = escapechar;
        this.lineEnd = lineEnd;
    }

    /**
     * Writes the next line to the file.
     *
     * @param nextLine
     *            a string array with each comma-separated element as a separate
     *            entry.
     */
    public void writeNext(String[] nextLine) {

      if (nextLine == null)
        return;

        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < nextLine.length; i++) {

            if (i != 0) {
                sb.append(separator);
            }

            String nextElement = nextLine[i];
            if (nextElement == null)
                continue;
            if (quotechar !=  NO_QUOTE_CHARACTER)
              sb.append(quotechar);
            for (int j = 0; j < nextElement.length(); j++) {
                char nextChar = nextElement.charAt(j);
                if (escapechar != NO_ESCAPE_CHARACTER && nextChar == quotechar) {
                  sb.append(escapechar).append(nextChar);
                } else if (escapechar != NO_ESCAPE_CHARACTER && nextChar == escapechar) {
                  sb.append(escapechar).append(nextChar);
                } else {
                    sb.append(nextChar);
                }
            }
            if (quotechar != NO_QUOTE_CHARACTER)
              sb.append(quotechar);
        }

        sb.append(lineEnd);
        pw.write(sb.toString());

    }

    /**
     * Flush underlying stream to writer.
     *
     * @throws IOException if bad things happen
     */
    public void flush() throws IOException {

        pw.flush();

    }

    /**
     * Close the underlying stream writer flushing any buffered content.
     *
     * @throws IOException if bad things happen
     *
     */
    public void close() throws IOException {
        pw.flush();
        pw.close();
    }

}

Java Source Code List

• Back to App/money  ↑