Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright 2014 Zhenguo Jin
 * <p/>
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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.
 */

import android.text.TextUtils;

import java.io.File;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;

import java.io.OutputStream;

import java.util.List;

public class Main {

    public static boolean copyFile(String sourceFilePath, String destFilePath) {
        InputStream inputStream = null;
        try {
            inputStream = new FileInputStream(sourceFilePath);
        } catch (FileNotFoundException e) {
            throw new RuntimeException("FileNotFoundException occurred. ", e);
        }
        return writeFile(destFilePath, inputStream);
    }

    public static boolean writeFile(String filePath, String content, boolean append) {
        if (TextUtils.isEmpty(content)) {
            return false;
        }

        FileWriter fileWriter = null;
        try {
            makeDirs(filePath);
            fileWriter = new FileWriter(filePath, append);
            fileWriter.write(content);
            fileWriter.close();
            return true;
        } catch (IOException e) {
            throw new RuntimeException("IOException occurred. ", e);
        } finally {
            if (fileWriter != null) {
                try {
                    fileWriter.close();
                } catch (IOException e) {
                    throw new RuntimeException("IOException occurred. ", e);
                }
            }
        }
    }

    public static boolean writeFile(String filePath, List<String> contentList, boolean append) {
        if (contentList == null || contentList.size() < 1) {
            return false;
        }

        FileWriter fileWriter = null;
        try {
            makeDirs(filePath);
            fileWriter = new FileWriter(filePath, append);
            int i = 0;
            for (String line : contentList) {
                if (i++ > 0) {
                    fileWriter.write("\r\n");
                }
                fileWriter.write(line);
            }
            fileWriter.close();
            return true;
        } catch (IOException e) {
            throw new RuntimeException("IOException occurred. ", e);
        } finally {
            if (fileWriter != null) {
                try {
                    fileWriter.close();
                } catch (IOException e) {
                    throw new RuntimeException("IOException occurred. ", e);
                }
            }
        }
    }

    public static boolean writeFile(String filePath, String content) {
        return writeFile(filePath, content, false);
    }

    public static boolean writeFile(String filePath, List<String> contentList) {
        return writeFile(filePath, contentList, false);
    }

    public static boolean writeFile(String filePath, InputStream stream) {
        return writeFile(filePath, stream, false);
    }

    /**
     * write file
     *
     * @param filePath the file to be opened for writing.
     * @param stream   the input stream
     * @param append   if <code>true</code>, then bytes will be written to the end of
     *                 the file rather than the beginning
     * @return return true
     * @throws RuntimeException if an error occurs while operator FileOutputStream
     */
    public static boolean writeFile(String filePath, InputStream stream, boolean append) {
        return writeFile(filePath != null ? new File(filePath) : null, stream, append);
    }

    public static boolean writeFile(File file, InputStream stream) {
        return writeFile(file, stream, false);
    }

    /**
     * write file
     *
     * @param file   the file to be opened for writing.
     * @param stream the input stream
     * @param append if <code>true</code>, then bytes will be written to the end of
     *               the file rather than the beginning
     * @return return true
     * @throws RuntimeException if an error occurs while operator FileOutputStream
     */
    public static boolean writeFile(File file, InputStream stream, boolean append) {
        OutputStream o = null;
        try {
            makeDirs(file.getAbsolutePath());
            o = new FileOutputStream(file, append);
            byte data[] = new byte[1024];
            int length = -1;
            while ((length = stream.read(data)) != -1) {
                o.write(data, 0, length);
            }
            o.flush();
            return true;
        } catch (FileNotFoundException e) {
            throw new RuntimeException("FileNotFoundException occurred. ", e);
        } catch (IOException e) {
            throw new RuntimeException("IOException occurred. ", e);
        } finally {
            if (o != null) {
                try {
                    o.close();
                    stream.close();
                } catch (IOException e) {
                    throw new RuntimeException("IOException occurred. ", e);
                }
            }
        }
    }

    public static boolean makeDirs(String filePath) {
        String folderName = getFolderName(filePath);
        if (TextUtils.isEmpty(folderName)) {
            return false;
        }

        File folder = new File(folderName);
        return (folder.exists() && folder.isDirectory()) || folder.mkdirs();
    }

    public static String getFolderName(String filePath) {

        if (TextUtils.isEmpty(filePath)) {
            return filePath;
        }

        int filePosi = filePath.lastIndexOf(File.separator);
        return (filePosi == -1) ? "" : filePath.substring(0, filePosi);
    }
}