Мне пришлось внести некоторые изменения в этот пост от AMegmondoEmber
Мой основной файл схемы содержал некоторые включения из соседних папок, а включенные файлы также имели некоторые включения из своих локальных папок. Я также должен был отследить базовый путь ресурса и относительный путь текущего ресурса. Этот код работает, насколько мне известно, но имейте в виду, что он предполагает, что все файлы xsd имеют уникальное имя. Если у вас есть xsd-файлы с одинаковыми именами, но разным содержимым по разным путям, это, вероятно, вызовет проблемы.
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.ls.LSInput;
import org.w3c.dom.ls.LSResourceResolver;
/**
* The Class ResourceResolver.
*/
public class ResourceResolver implements LSResourceResolver {
/** The logger. */
private final Logger logger = LoggerFactory.getLogger(this.getClass());
/** The schema base path. */
private final String schemaBasePath;
/** The path map. */
private Map<String, String> pathMap = new HashMap<String, String>();
/**
* Instantiates a new resource resolver.
*
* @param schemaBasePath the schema base path
*/
public ResourceResolver(String schemaBasePath) {
this.schemaBasePath = schemaBasePath;
logger.warn("This LSResourceResolver implementation assumes that all XSD files have a unique name. "
+ "If you have some XSD files with same name but different content (at different paths) in your schema structure, "
+ "this resolver will fail to include the other XSD files except the first one found.");
}
/* (non-Javadoc)
* @see org.w3c.dom.ls.LSResourceResolver#resolveResource(java.lang.String, java.lang.String, java.lang.String, java.lang.String, java.lang.String)
*/
@Override
public LSInput resolveResource(String type, String namespaceURI,
String publicId, String systemId, String baseURI) {
// The base resource that includes this current resource
String baseResourceName = null;
String baseResourcePath = null;
// Extract the current resource name
String currentResourceName = systemId.substring(systemId
.lastIndexOf("/") + 1);
// If this resource hasn't been added yet
if (!pathMap.containsKey(currentResourceName)) {
if (baseURI != null) {
baseResourceName = baseURI
.substring(baseURI.lastIndexOf("/") + 1);
}
// we dont need "./" since getResourceAsStream cannot understand it
if (systemId.startsWith("./")) {
systemId = systemId.substring(2, systemId.length());
}
// If the baseResourcePath has already been discovered, get that
// from pathMap
if (pathMap.containsKey(baseResourceName)) {
baseResourcePath = pathMap.get(baseResourceName);
} else {
// The baseResourcePath should be the schemaBasePath
baseResourcePath = schemaBasePath;
}
// Read the resource as input stream
String normalizedPath = getNormalizedPath(baseResourcePath, systemId);
InputStream resourceAsStream = this.getClass().getClassLoader()
.getResourceAsStream(normalizedPath);
// if the current resource is not in the same path with base
// resource, add current resource's path to pathMap
if (systemId.contains("/")) {
pathMap.put(currentResourceName, normalizedPath.substring(0,normalizedPath.lastIndexOf("/")+1));
} else {
// The current resource should be at the same path as the base
// resource
pathMap.put(systemId, baseResourcePath);
}
Scanner s = new Scanner(resourceAsStream).useDelimiter("\\A");
String s1 = s.next().replaceAll("\\n", " ") // the parser cannot understand elements broken down multiple lines e.g. (<xs:element \n name="buxing">)
.replace("\\t", " ") // these two about whitespaces is only for decoration
.replaceAll("\\s+", " ").replaceAll("[^\\x20-\\x7e]", ""); // some files has a special character as a first character indicating utf-8 file
InputStream is = new ByteArrayInputStream(s1.getBytes());
return new LSInputImpl(publicId, systemId, is); // same as Input class
}
// If this resource has already been added, do not add the same resource again. It throws
// "org.xml.sax.SAXParseException: sch-props-correct.2: A schema cannot contain two global components with the same name; this schema contains two occurrences of ..."
// return null instead.
return null;
}
/**
* Gets the normalized path.
*
* @param basePath the base path
* @param relativePath the relative path
* @return the normalized path
*/
private String getNormalizedPath(String basePath, String relativePath){
if(!relativePath.startsWith("../")){
return basePath + relativePath;
}
else{
while(relativePath.startsWith("../")){
basePath = basePath.substring(0,basePath.substring(0, basePath.length()-1).lastIndexOf("/")+1);
relativePath = relativePath.substring(3);
}
return basePath+relativePath;
}
}
}