| /* |
| * ProGuard -- shrinking, optimization, obfuscation, and preverification |
| * of Java bytecode. |
| * |
| * Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu) |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| package proguard.classfile.util; |
| |
| import proguard.util.*; |
| |
| import java.io.PrintStream; |
| import java.util.List; |
| |
| /** |
| * This class prints out and counts warnings. |
| * |
| * @author Eric Lafortune |
| */ |
| public class WarningPrinter |
| { |
| private final PrintStream printStream; |
| private final StringMatcher classFilter; |
| private int warningCount; |
| |
| |
| /** |
| * Creates a new WarningPrinter that prints to the System.err print stream. |
| */ |
| public WarningPrinter() |
| { |
| this(System.err); |
| } |
| |
| |
| /** |
| * Creates a new WarningPrinter that prints to the given print stream. |
| */ |
| public WarningPrinter(PrintStream printStream) |
| { |
| this.printStream = printStream; |
| this.classFilter = null; |
| } |
| |
| |
| /** |
| * Creates a new WarningPrinter that prints to the given print stream, |
| * except if the names of any involved classes matches the given filter. |
| */ |
| public WarningPrinter(PrintStream printStream, List classFilter) |
| { |
| this.printStream = printStream; |
| this.classFilter = classFilter == null ? null : |
| new ListParser(new ClassNameParser()).parse(classFilter); |
| } |
| |
| |
| /** |
| * Prints out the given warning and increments the warning count, if |
| * the given class name passes the class name filter. |
| */ |
| public void print(String className, String warning) |
| { |
| if (accepts(className)) |
| { |
| print(warning); |
| } |
| } |
| |
| |
| /** |
| * Returns whether the given class name passes the class name filter. |
| */ |
| public boolean accepts(String className) |
| { |
| return classFilter == null || |
| !classFilter.matches(className); |
| } |
| |
| |
| /** |
| * Prints out the given warning and increments the warning count, if |
| * the given class names pass the class name filter. |
| */ |
| public void print(String className1, String className2, String warning) |
| { |
| if (accepts(className1, className2)) |
| { |
| print(warning); |
| } |
| } |
| |
| |
| /** |
| * Returns whether the given class names pass the class name filter. |
| */ |
| public boolean accepts(String className1, String className2) |
| { |
| return classFilter == null || |
| !(classFilter.matches(className1) || |
| classFilter.matches(className2)); |
| } |
| |
| |
| /** |
| * Prints out the given warning and increments the warning count. |
| */ |
| private void print(String warning) |
| { |
| printStream.println(warning); |
| |
| warningCount++; |
| } |
| |
| |
| /** |
| * Returns the number of warnings printed so far. |
| */ |
| public int getWarningCount() |
| { |
| return warningCount; |
| } |
| } |