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/*
 * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.codemodel.writer;

import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.Writer;

import com.sun.codemodel.CodeWriter;
import com.sun.codemodel.JPackage;

/**
 * Filter CodeWriter that writes a progress message to the specified
 * PrintStream.
 * 
 * @author
 * 	Kohsuke Kawaguchi ([email protected])
 */
public class ProgressCodeWriter extends FilterCodeWriter {
    public ProgressCodeWriter( CodeWriter output, PrintStream progress ) {
        super(output);
        this.progress = progress;
        if(progress==null)
            throw new IllegalArgumentException();
    }

    private final PrintStream progress;
    
    @Override
    public OutputStream openBinary(JPackage pkg, String fileName) throws IOException {
        report(pkg, fileName);
        return super.openBinary(pkg,fileName);
    }

    @Override
    public Writer openSource(JPackage pkg, String fileName) throws IOException {
        report(pkg, fileName);
        return super.openSource(pkg,fileName);
    }
    
    private void report(JPackage pkg, String fileName) {
        if(pkg == null || pkg.isUnnamed())
            progress.println(fileName);
        else
            progress.println(
                pkg.name().replace('.',File.separatorChar)
                    +File.separatorChar+fileName);
    }

}