import org.codehaus.plexus.util.InterpolationFilterReader; //导入依赖的package包/类
private String interpolateBaseDirAndRepo( String content )
{
    StringReader sr = new StringReader( content );
    StringWriter result = new StringWriter();

    Map context = new HashMap();

    context.put( "BASEDIR", StringUtils.quoteAndEscape( getBasedir(), '"' ) );
    context.put( "REPO", StringUtils.quoteAndEscape( getRepo(), '"' ) );
    InterpolationFilterReader interpolationFilterReader = new InterpolationFilterReader( sr, context, "@", "@" );
    try
    {
        IOUtil.copy( interpolationFilterReader, result );
    }
    catch ( IOException e )
    {
        // shouldn't happen...
    }
    return result.toString();
}
 

import org.codehaus.plexus.util.InterpolationFilterReader; //导入依赖的package包/类
private String interpolateBaseDirAndRepo( String content )
{
    StringReader sr = new StringReader( content );
    StringWriter result = new StringWriter();

    Map<Object, Object> context = new HashMap<Object, Object>();

    context.put( "BASEDIR", StringUtils.quoteAndEscape( getBasedir(), '"' ) );
    context.put( "REPO", StringUtils.quoteAndEscape( getRepo(), '"' ) );
    InterpolationFilterReader interpolationFilterReader = new InterpolationFilterReader( sr, context, "@", "@" );
    try
    {
        IOUtil.copy( interpolationFilterReader, result );
    }
    catch ( IOException e )
    {
        // shouldn't happen...
    }
    return result.toString();
}
 

import org.codehaus.plexus.util.InterpolationFilterReader; //导入依赖的package包/类
private static void writeFilteredFile( DaemonGenerationRequest request, Daemon daemon, Reader reader,
                                       File outputFile, Map context )
    throws DaemonGeneratorException
{
    InterpolationFilterReader interpolationFilterReader = new InterpolationFilterReader( reader, context, "@", "@" );

    writeFile( outputFile, interpolationFilterReader );
}
 

import org.codehaus.plexus.util.InterpolationFilterReader; //导入依赖的package包/类
protected File createFilteredFile( String file )
    throws IOException, FileNotFoundException, DaemonGeneratorException, XmlPullParserException
{
    String version = getAppAssemblerBooterVersion();
    Properties context = new Properties();
    context.setProperty( "appassembler.version", version );

    File tempPom = File.createTempFile( "appassembler", "tmp" );
    tempPom.deleteOnExit();

    InterpolationFilterReader reader =
        new InterpolationFilterReader( new FileReader( getTestFile( file ) ), context, "@", "@" );
    FileWriter out = null;

    try
    {
        out = new FileWriter( tempPom );

        IOUtil.copy( reader, out );
    }
    catch ( IOException e )
    {
        throw new DaemonGeneratorException( "Error writing output file: " + tempPom.getAbsolutePath(), e );
    }
    finally
    {
        IOUtil.close( reader );
        IOUtil.close( out );
    }
    return tempPom;
}
 

import org.codehaus.plexus.util.InterpolationFilterReader; //导入依赖的package包/类
private static void writeFilteredFile( DaemonGenerationRequest request, Daemon daemon, Reader reader,
                                       File outputFile, Map context )
                                           throws DaemonGeneratorException
{
    InterpolationFilterReader interpolationFilterReader =
        new InterpolationFilterReader( reader, context, "@", "@" );

    writeFile( outputFile, interpolationFilterReader );
}
 

import org.codehaus.plexus.util.InterpolationFilterReader; //导入依赖的package包/类
private void filterCopy( File sourceFile, String resourcePath, File destinationFile, Properties filterProperties )
    throws IOException
{
    // buffer so it isn't reading a byte at a time!
    Reader source = null;
    Writer destination = null;
    try
    {
        InputStream instream;
        if ( sourceFile != null )
        {
            instream = new FileInputStream( sourceFile );
        }
        else
        {
            instream = getClass().getClassLoader().getResourceAsStream( resourcePath );
        }
        FileOutputStream outstream = new FileOutputStream( destinationFile );

        source = new BufferedReader( new InputStreamReader( instream, "UTF-8" ) );
        destination = new OutputStreamWriter( outstream, "UTF-8" );

        // support ${token}
        Reader reader = new InterpolationFilterReader( source, filterProperties, "${", "}" );

        IOUtil.copy( reader, destination );
    }
    finally
    {
        IOUtil.close( source );
        IOUtil.close( destination );
    }
}
 

import org.codehaus.plexus.util.InterpolationFilterReader; //导入依赖的package包/类
private static String interpolate(Map<String, String> dict, String value) {
    if (value == null) {
        return null;
    }

    for (;;) {
        if (!value.contains("${")) {
            // Nothing to interpolate.
            break;
        }

        InterpolationFilterReader reader = new InterpolationFilterReader(new StringReader(value), dict);
        StringWriter writer = new StringWriter(value.length());
        for (;;) {
            int ch;
            try {
                ch = reader.read();
            } catch (IOException e) {
                // Should not reach here.
                throw (Error) new Error().initCause(e);
            }

            if (ch == -1) {
                break;
            }
            writer.write(ch);
        }

        String newValue = writer.toString();
        if (value.equals(newValue)) {
            // No interpolatable prpoerties left.
            break;
        }

        // Interpolated at least one variable.
        // Try again just in case the interpolation introduced another variable.
        value = newValue;
    }

    return value;
}