1 /* 2 * Copyright (c) 2012-2022, jcabi.com 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 1) Redistributions of source code must retain the above 8 * copyright notice, this list of conditions and the following 9 * disclaimer. 2) Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 3) Neither the name of the jcabi.com nor 13 * the names of its contributors may be used to endorse or promote 14 * products derived from this software without specific prior written 15 * permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT 19 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 20 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 21 * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 28 * OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 package com.jcabi.xml; 31 32 import java.io.InputStream; 33 import javax.xml.transform.Source; 34 import javax.xml.transform.TransformerException; 35 import javax.xml.transform.stream.StreamSource; 36 import lombok.EqualsAndHashCode; 37 38 /** 39 * Sources in classpath. 40 * @since 0.9 41 */ 42 @EqualsAndHashCode(of = "prefix") 43 public final class ClasspathSources implements Sources { 44 45 /** 46 * Pattern to compose resource. 47 */ 48 private static final String PATTERN = "%s%s"; 49 50 /** 51 * Prefix. 52 */ 53 private final transient String prefix; 54 55 /** 56 * Public ctor. 57 */ 58 public ClasspathSources() { 59 this(""); 60 } 61 62 /** 63 * Public ctor. 64 * @param type Start with this type 65 */ 66 public ClasspathSources(final Class<?> type) { 67 this( 68 String.format( 69 "/%s/", 70 type.getPackage().getName().replace(".", "/") 71 ) 72 ); 73 } 74 75 /** 76 * Public ctor. 77 * @param pfx Classpath prefix 78 */ 79 public ClasspathSources(final String pfx) { 80 this.prefix = pfx; 81 } 82 83 @Override 84 public Source resolve(final String href, final String base) 85 throws TransformerException { 86 InputStream stream = this.getClass().getResourceAsStream( 87 String.format(ClasspathSources.PATTERN, this.prefix, href) 88 ); 89 if (stream == null) { 90 stream = this.getClass().getResourceAsStream( 91 String.format(ClasspathSources.PATTERN, base, href) 92 ); 93 if (stream == null) { 94 throw new TransformerException( 95 String.format( 96 "Resource \"%s\" not found in classpath with prefix \"%s\" and base \"%s\"", 97 href, this.prefix, base 98 ) 99 ); 100 } 101 } 102 return new StreamSource(stream); 103 } 104 }