org.etudes.mneme.tool.UploadCsv.java Source code

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Here is the source code for org.etudes.mneme.tool.UploadCsv.java

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/**********************************************************************************
 * $URL: https://source.etudes.org/svn/apps/mneme/trunk/mneme-tool/tool/src/java/org/etudes/mneme/tool/UploadCsv.java $
 * $Id: UploadCsv.java 9578 2014-12-18 03:27:47Z ggolden $
 ***********************************************************************************
 *
 * Copyright (c) 2014 Etudes, Inc.
 * 
 * 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.etudes.mneme.tool;

import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.util.List;

import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVParser;
import org.apache.commons.csv.CSVRecord;
import org.apache.commons.fileupload.FileItem;

/**
 * Upload handles file uploads of XML documents, parsing the text into a DOM.
 */
public class UploadCsv {
    /** The uploaded file. */
    protected String contents = null;

    /** The file name extension. */
    protected String extension = null;

    /** The file name. */
    protected String name = null;

    /** The parsed file. */
    protected List<CSVRecord> records = null;

    /**
     * Construct.
     */
    public UploadCsv() {
    }

    /**
     * @return The uploaded file, as a string.
     */
    public String getContents() {
        return this.contents;
    }

    /**
     * @return The file name extension.
     */
    public String getExtension() {
        return this.extension;
    }

    /**
     * @return The file name.
     */
    public String getName() {
        return this.name;
    }

    /**
     * @return The uploaded file, as a list of parsed CSV records.
     */
    public List<CSVRecord> getRecords() {
        return this.records;
    }

    /**
     * Accept a file upload from the user.
     * 
     * @param file
     *        The file.
     */
    public void setUpload(FileItem file) {
        this.name = file.getName();
        this.extension = (this.name != null && this.name.lastIndexOf('.') != -1)
                ? this.name.substring(this.name.lastIndexOf('.') + 1)
                : null;
        this.contents = file.getString();

        parse();
    }

    /**
     * Parse the contents into CSV records.
     */
    protected void parse() {
        try {
            Reader in = new StringReader(this.contents);
            CSVParser parser = new CSVParser(in, CSVFormat.RFC4180);
            this.records = parser.getRecords();
            parser.close();
        } catch (IOException e) {
        } finally {

        }
    }
}