com.cnten.platform.util.FileUtil.java Source code

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Here is the source code for com.cnten.platform.util.FileUtil.java

Source

package com.cnten.platform.util;

import java.io.File;
import java.io.InputStream;
import java.io.OutputStream;

import net.coobird.thumbnailator.Thumbnails;

import org.apache.commons.lang3.StringUtils;

import com.cnten.bdlocation.constants.CorsAccountConsts;

public class FileUtil {

    public static void createDir(String dirPath) {
        if (StringUtils.isEmpty(dirPath)) {
            return;
        }
        File file = new File(dirPath);
        if (!file.exists()) {
            file.setWritable(true, false);//linux java ???
            file.mkdirs();
        }
    }

    public static String getExtensionName(String fileName) {
        String extension = "";
        if (StringUtils.isNotBlank(fileName)) {
            int lastIndex = fileName.lastIndexOf('.');
            lastIndex = lastIndex > 0 ? lastIndex + 1 : 0;
            extension = fileName.substring(lastIndex);
        }
        return extension;
    }

    public static String getUUIDFileName(String fileName) {
        StringBuffer newName = new StringBuffer();
        if (StringUtils.isNotBlank(fileName)) {
            newName.append(UUIDUtil.getUUID());
            newName.append('.');
            newName.append(getExtensionName(fileName));
        }
        return newName.toString();
    }

    public static String getThumbnailFilePath(String filePath) {
        StringBuffer thumbnailFilePath = new StringBuffer();
        if (StringUtils.isNotBlank(filePath)) {
            int lastIndex = filePath.lastIndexOf('.');
            lastIndex = lastIndex > 0 ? lastIndex : 0;
            thumbnailFilePath.append(filePath.substring(0, lastIndex));
            thumbnailFilePath.append("_thumbnail");
            thumbnailFilePath.append('.');
            thumbnailFilePath.append(getExtensionName(filePath));
        }
        return thumbnailFilePath.toString();
    }

    public static void saveThumbnail(String filePath, String thumbnailType) {
        if (StringUtils.isBlank(filePath))
            return;
        String thumbnailFilePath = getThumbnailFilePath(filePath);
        try {
            if (CorsAccountConsts.COMPANY_LICENSE_ENTITY_NAME.equals(thumbnailType)) {
                Thumbnails.of(filePath).size(220, 160).toFile(thumbnailFilePath);
            } else {
                Thumbnails.of(filePath).size(130, 92).toFile(thumbnailFilePath);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void writeStream(InputStream is, OutputStream os) throws Exception {
        byte[] buff = new byte[1024];
        int readCount = 0;
        readCount = is.read(buff);
        while (readCount != -1) {
            os.write(buff, 0, readCount);
            readCount = is.read(buff);
        }
    }
}