IOS 文件解析

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;

import org.apache.commons.lang.StringUtils;
import org.apache.poi.util.IOUtils;
import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;


/**
 * IOS文件解析
 * 
 * @author     dKF63325
 * @version    ONIP BME V300R001 2014-6-9
 * @since      ONIP BME V300R001C00
 */
public class IosInfoUtils
{

    
    public static HashMap<String, Object> getIosInfo(String filePath, String fileName) throws Exception
    {
        // 获得二级目录名称
        String appName = getAppName(filePath);
        
        // 解析文件
        HashMap<String, Object> infoMap = parseXml(filePath, appName);
        
        File file = new File(filePath);
        // 文件名称
        infoMap.put("fileName", file.getName());
        // 文件大小
        infoMap.put("fileSize", convertFileSize(file.length()));
        // 文件大小(单位：字节)
        infoMap.put("fileByteSize", file.length());
        // 是否存在SDK
        infoMap.put("isSDK", AXMLPrinter2.isExistsSdkFromIOS(filePath, appName));
        // SDK版本号
        infoMap.put("sdkVersion", AXMLPrinter2.getSdkVersionFromIOS(filePath, appName));

        return infoMap;
    }
    
    private static String getAppName(String filePath)
    {
        ZipFile file = null;
        InputStream in = null;
        String name = StringUtils.EMPTY;
        try
        {
            in = new BufferedInputStream(new FileInputStream(filePath));
            ZipInputStream zip = new ZipInputStream(in);
            ZipEntry zp = null;
            while ((zp = zip.getNextEntry()) != null)
            {
                name = zp.getName();
                if (name.indexOf(".app") != -1)
                {
                    name = name.substring(name.indexOf("Payload/")+"Payload/".length(), name.indexOf(".app") + ".app".length());
                    break;
                }
            }
        }
        catch (IOException e)
        {
            DEBUGGER.error("Failed to getAppName", e);
        }
        finally
        {
            IOUtils.closeQuietly(in);
            AXMLPrinter2.closeZipFile(file);
        }
        return name;
    }

    private static HashMap<String, Object> parseXml(String filePath, String projectName) throws IOException, Exception, DocumentException
    {
        String xml = AXMLPrinter2.getXmlFromIOS(filePath, projectName);
        StringReader read = new StringReader(xml);
        InputSource scource = new InputSource(read);
        SAXReader sax = new SAXReader();
        sax.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
        Document root = sax.read(scource);
        Element dictElement = (Element) root.selectSingleNode("//dict");
        List<Element> children = filterElement(dictElement.elements());
        HashMap<String, Object> infoMap = new HashMap<String, Object>();
        for (int i = 0; i < children.size(); i+=2)
        {
            Element key = children.get(i);
            Element val = children.get(i+1);
            if ("array".equals(val.getName()))
            {
                List<Element> arrayList = filterElement(val.elements());
                String values = StringUtils.EMPTY;
                for (Element element : arrayList)
                {
                    values += element.getStringValue() + ",";
                }
                infoMap.put(key.getStringValue(), StringUtils.removeEnd(values, ","));
            } else if ("true".equals(val.getName())) {
                infoMap.put(key.getStringValue(), true);
            } else if ("false".equals(val.getName())) {
                infoMap.put(key.getStringValue(), false);
            } else {
                infoMap.put(key.getStringValue(), val.getStringValue());
            }
        }
        return infoMap;
    }
    
    private static List<Element> filterElement(List<?> elements) {
        List<Element> result = new ArrayList<Element>(elements.size());
        for (Object object : elements)
        {
            Element element = (Element)object;
            if (element.getNodeType() == Node.ELEMENT_NODE)
            {
                result.add(element);
            }
        }
        return result;
    }
    
    public static String convertFileSize(long filesize)
    {
        String strUnit = "Bytes";
        String strAfterComma = "";
        int intDivisor = 1;
        if (filesize >= 1024 * 1024)
        {
            strUnit = "MB";
            intDivisor = 1024 * 1024;
        } else if (filesize >= 1024)
        {
            strUnit = "KB";
            intDivisor = 1024;
        }
        if (intDivisor == 1){
            return filesize + " " + strUnit;
        }

        strAfterComma = "" + 100 * (filesize % intDivisor) / intDivisor;
        if (strAfterComma.equals(""))
            strAfterComma = ".0";
        
        return filesize / intDivisor + "." + strAfterComma + " " + strUnit;
    }
}