001 /* 002 * Jpkg - Java library and tools for operating system package creation. 003 * 004 * Copyright (c) 2007 Three Rings Design, Inc. 005 * All rights reserved. 006 * 007 * Redistribution and use in source and binary forms, with or without 008 * modification, are permitted provided that the following conditions 009 * are met: 010 * 1. Redistributions of source code must retain the above copyright 011 * notice, this list of conditions and the following disclaimer. 012 * 2. Redistributions in binary form must reproduce the above copyright 013 * notice, this list of conditions and the following disclaimer in the 014 * documentation and/or other materials provided with the distribution. 015 * 3. Neither the name of the copyright owner nor the names of contributors 016 * may be used to endorse or promote products derived from this software 017 * without specific prior written permission. 018 * 019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 021 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 022 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 023 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 024 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 025 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 026 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 027 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 029 * POSSIBILITY OF SUCH DAMAGE. 030 */ 031 package com.threerings.antidote; 032 033 import java.util.ArrayList; 034 import java.util.List; 035 036 import org.apache.tools.ant.BuildException; 037 038 /** 039 * Turns lists of {@link RequiresValidation} objects into a single {@link BuildException} 040 */ 041 public class Validator 042 { 043 /** 044 * Add a {@link RequiresValidation} object to be reported by this Validator 045 */ 046 public void addValidation (RequiresValidation validator) 047 { 048 _validators.add(validator); 049 } 050 051 /** 052 * Validates all {@link RequiresValidation} objects known to this Validator, throwing a 053 * single {@link BuildException} for all detected violations. 054 * @throws BuildException 055 */ 056 public void validateAll () 057 { 058 final StringBuilder builder = new StringBuilder(); 059 for (final RequiresValidation validator : _validators) { 060 for (final Violation violation : validator.validate()) { 061 if (builder.length() > 0) { 062 builder.append("\n"); 063 } 064 if (builder.length() == 0) { 065 builder.append("Validation exceptions encountered:\n"); 066 } 067 builder.append(violation.getLocation() + violation.getReason()); 068 } 069 } 070 if (builder.length() > 0) { 071 throw new BuildException(builder.toString()); 072 } 073 } 074 075 private final List<RequiresValidation> _validators = new ArrayList<RequiresValidation>(); 076 }