1 /*
   2  * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.tools.internal.xjc;
  27 
  28 import java.io.File;
  29 import java.io.IOException;
  30 import java.io.OutputStream;
  31 import java.io.Writer;
  32 
  33 import com.sun.codemodel.internal.CodeWriter;
  34 import com.sun.codemodel.internal.JPackage;
  35 import com.sun.codemodel.internal.writer.FilterCodeWriter;
  36 
  37 /**
  38  * {@link CodeWriter} that reports progress to {@link XJCListener}.
  39  */
  40 final class ProgressCodeWriter extends FilterCodeWriter {
  41 
  42     private int current;
  43     private final int totalFileCount;
  44 
  45     public ProgressCodeWriter( CodeWriter output, XJCListener progress, int totalFileCount ) {
  46         super(output);
  47         this.progress = progress;
  48         this.totalFileCount = totalFileCount;
  49         if(progress==null)
  50             throw new IllegalArgumentException();
  51     }
  52 
  53     private final XJCListener progress;
  54 
  55     @Override
  56     public Writer openSource(JPackage pkg, String fileName) throws IOException {
  57         report(pkg,fileName);
  58         return super.openSource(pkg, fileName);
  59     }
  60 
  61     @Override
  62     public OutputStream openBinary(JPackage pkg, String fileName) throws IOException {
  63         report(pkg,fileName);
  64         return super.openBinary(pkg,fileName);
  65     }
  66 
  67     /**
  68      * Report progress to {@link XJCListener}.
  69      * @param pkg The package of file being written. Value of {@code null} means that file has no package.
  70      * @param fileName The file name being written. Value can't be {@code null}.
  71      */
  72     private void report(final JPackage pkg, final String fileName) {
  73         if (fileName == null) {
  74             throw new IllegalArgumentException("File name is null");
  75         }
  76 
  77         final String pkgName;
  78         final String fileNameOut;
  79         if (pkg != null && (pkgName = pkg.name().replace('.', File.separatorChar)).length() > 0 ) {
  80             final StringBuilder sb = new StringBuilder(fileName.length() + pkgName.length() + 1);
  81             sb.append(pkgName);
  82             sb.append(File.separatorChar);
  83             sb.append(fileName);
  84             fileNameOut = sb.toString();
  85         } else {
  86             fileNameOut = fileName;
  87         }
  88 
  89         if(progress.isCanceled())
  90             throw new AbortException();
  91         progress.generatedFile(fileNameOut, current++, totalFileCount);
  92     }
  93 }