com.sec.ose.osi.util.tools.FileOperator.java Source code

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Here is the source code for com.sec.ose.osi.util.tools.FileOperator.java

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/**
 * Copyright(C) 2010-2014 Samsung Electronics Co., Ltd. All rights reserved.
 *
 *   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 com.sec.ose.osi.util.tools;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * FileOperator
 * @author suhyun47.kim, sjh.yoo, hankido.lee
 * 
 */
public class FileOperator {
    private static Log log = LogFactory.getLog(FileOperator.class);

    private static final int BUF_SIZE = 2048;

    public static boolean saveFile(String filePath, String contents) {

        File writeFile = new File(filePath);

        PrintWriter writer = null;

        try {
            writer = new PrintWriter(new FileWriter(writeFile));
            writer.println(contents);

        } catch (IOException e) {
            // TODO Auto-generated catch block
            log.warn(e);
            return false;
        } finally {

            if (writer != null) {
                writer.flush();
                writer.close();
            }
            writer = null;
        }

        return true;
    }

    public static void copyFile(File pSource, File pDest) throws FileNotFoundException {

        if (pSource == null)
            throw new FileNotFoundException("Source file is not found");

        if (pSource.exists() == false)
            throw new FileNotFoundException(pSource.getPath());

        if (pDest == null)
            throw new FileNotFoundException("Report file is not found");

        BufferedInputStream bi = null;
        BufferedOutputStream bo = null;

        try {
            bi = new BufferedInputStream(new FileInputStream(pSource)); // FileNotFoundExeption
            bo = new BufferedOutputStream(new FileOutputStream(pDest));

            byte buffer[] = new byte[BUF_SIZE];

            int readByte = 0;

            while ((readByte = bi.read(buffer)) != -1) { // IOException
                bo.write(buffer, 0, readByte);

            }

        } catch (FileNotFoundException e) {
            log.warn(e);
            throw e;
        } catch (IOException e) {
            log.warn(e);
        } finally {

            if (bo != null) {
                try {
                    bo.flush();

                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    log.warn(e);
                }
                try {
                    bo.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    log.warn(e);
                }

                bo = null;
            }
            if (bi != null) {
                try {
                    bi.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    log.warn(e);
                }
                bi = null;
            }
        }

    }

    public static String getExtention(String filePath) {
        if (filePath == null)
            return null;

        int lastIdxSlash = filePath.lastIndexOf("/");
        int lastIdxDot = filePath.lastIndexOf(".");

        if (lastIdxDot < 0 || lastIdxDot < lastIdxSlash)
            return null;

        if (lastIdxSlash + 1 == lastIdxDot)
            return "";
        return filePath.substring(lastIdxDot + 1, filePath.length());
    }

    public static String readFile(String filePath) {

        File file = new File(filePath);

        BufferedReader br = null;

        StringBuffer buf = new StringBuffer();

        try {
            br = new BufferedReader((new FileReader(file)));
            String line = null;

            while ((line = br.readLine()) != null) {
                buf.append(line).append("\n");
            }
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            log.warn(e);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            log.warn(e);
        } finally {
            if (br != null) {
                try {
                    br.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    log.warn(e);
                }
            }
        }

        return buf.toString();
    }

}