com.ewcms.common.io.HtmlFileUtil.java Source code

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Here is the source code for com.ewcms.common.io.HtmlFileUtil.java

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/**
 * Copyright (c)2010-2011 Enterprise Website Content Management System(EWCMS), All rights reserved.
 * EWCMS PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 * http://www.ewcms.com
 */

package com.ewcms.common.io;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;

import org.apache.commons.lang.ArrayUtils;

/**
 * ?
 * 
 * @author ?
 */
public class HtmlFileUtil {
    public static String normalizePath(String path) {
        path = path.replace('\\', '/');
        path = HtmlStringUtil.replaceEx(path, "../", "/");
        path = HtmlStringUtil.replaceEx(path, "./", "/");
        if (path.endsWith(".."))
            path = path.substring(0, path.length() - 2);
        path = path.replaceAll("/+", "/");
        return path;
    }

    public static File normalizeFile(File f) {
        String path = f.getAbsolutePath();
        path = normalizePath(path);
        return new File(path);
    }

    public static String readText(File f) {
        f = normalizeFile(f);
        return readText(f, "UTF-8");
    }

    public static String readText(File f, String encoding) {
        try {
            f = normalizeFile(f);
            InputStream is = new FileInputStream(f);
            String str = readText(is, encoding);
            is.close();
            return str;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String readText(InputStream is, String encoding) {
        try {
            byte bs[] = readByte(is);
            if (encoding.equalsIgnoreCase("UTF-8")
                    && HtmlStringUtil.hexEncode(ArrayUtils.subarray(bs, 0, 3)).equals("efbbbf"))
                bs = ArrayUtils.subarray(bs, 3, bs.length);
            return new String(bs, encoding);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static byte[] readByte(String fileName) {
        try {
            fileName = normalizePath(fileName);
            FileInputStream fis = new FileInputStream(fileName);
            byte r[] = new byte[fis.available()];
            fis.read(r);
            fis.close();
            return r;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static byte[] readByte(File f) {
        try {
            f = normalizeFile(f);
            FileInputStream fis = new FileInputStream(f);
            byte r[] = readByte(((InputStream) (fis)));
            fis.close();
            return r;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

    public static byte[] readByte(InputStream is) {
        try {
            byte r[] = new byte[is.available()];
            is.read(r);
            return r;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }
}