关于项目自动化测试架构的改良计划 - 读取原始xml文件

/**
 *
 *@author cwang58
 *@created date: Jun 10, 2013
 */
public class XMLReader {
                                    
    private static final String LINE_SEPARATOR=System.getProperty("line.separator");
    private static String userDir = System.getProperty("user.dir");
    private static final String fileSeparator=System.getProperty("file.separator");
    private static final String dataFileName="test_suite.xml";
                                    
    /**
     * build the data file path which depends on the platform
     * @param projectName
     * @return
     */
    public static String buildDataFilePath (String projectName){
        return userDir+fileSeparator+"src"
                      +fileSeparator+"test"
                      +fileSeparator+"resources"
                      +fileSeparator+projectName
                      +fileSeparator+"data"
                      +fileSeparator+dataFileName;
                                                      
    }
                                    
    /**
     * read the file content then store contant into a string
     * @param source the file source name
     * @return
     * @throws IOException
     */
    public static String readContentFromFile(String source) throws IOException{
        File file = new File(source);
        // open a file reader to read the file content
        FileInputStream fis = null;
        InputStreamReader isr = null;
        BufferedReader reader = null;
        try {
                                        
            fis = new FileInputStream(file);
            isr = new InputStreamReader(fis, "utf-8");
            reader = new BufferedReader(isr);
            StringBuffer bufferedFileContent = new StringBuffer();
            String line = null;
            while ((line = reader.readLine()) != null) {
                bufferedFileContent.append(line).append(LINE_SEPARATOR);
            }
            return bufferedFileContent.toString();
        } catch (FileNotFoundException ex) {
            ex.printStackTrace();
            return null;
        } finally {
            if(reader!=null)
                reader.close();
            if(isr!=null)
                isr.close();
            if(fis!=null)
                fis.close();
        }
    }