| /* |
| * 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.IOException; |
| import java.io.PrintWriter; |
| import java.io.Writer; |
| |
| import com.sun.codemodel.CodeWriter; |
| import com.sun.codemodel.JPackage; |
| |
| /** |
| * Writes all the source files under the specified file folder and |
| * inserts a file prolog comment in each java source file. |
| * |
| * @author |
| * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com) |
| */ |
| public class PrologCodeWriter extends FilterCodeWriter { |
| |
| /** prolog comment */ |
| private final String prolog; |
| |
| /** |
| * @param core |
| * This CodeWriter will be used to actually create a storage for files. |
| * PrologCodeWriter simply decorates this underlying CodeWriter by |
| * adding prolog comments. |
| * @param prolog |
| * Strings that will be added as comments. |
| * This string may contain newlines to produce multi-line comments. |
| * '//' will be inserted at the beginning of each line to make it |
| * a valid Java comment, so the caller can just pass strings like |
| * "abc\ndef" |
| */ |
| public PrologCodeWriter( CodeWriter core, String prolog ) { |
| super(core); |
| this.prolog = prolog; |
| } |
| |
| |
| @Override |
| public Writer openSource(JPackage pkg, String fileName) throws IOException { |
| Writer w = super.openSource(pkg,fileName); |
| |
| PrintWriter out = new PrintWriter(w); |
| |
| // write prolog if this is a java source file |
| if( prolog != null ) { |
| out.println( "//" ); |
| |
| String s = prolog; |
| int idx; |
| while( (idx=s.indexOf('\n'))!=-1 ) { |
| out.println("// "+ s.substring(0,idx) ); |
| s = s.substring(idx+1); |
| } |
| out.println("//"); |
| out.println(); |
| } |
| out.flush(); // we can't close the stream for that would close the undelying stream. |
| |
| return w; |
| } |
| } |