/**
* Loops through the SchemaDocuments in the Schema and returns null or the first which has a
* matching systemID to the given systemID;
*
* @throws IllegalArgumentException if Schema is null or contains no SchemaDocuments
* @param schema the Schema to search
* @param systemId the systemID to look for
* @return the matching SchemaDocuemnt or null
*/
public static XMLSchemaDocument getSchemaDocumentFromSchema(XMLSchema schema, String systemId) {
if (schema == null) {
throw new IllegalArgumentException("Schema must be non null.");
}
if (schema.getRootDocument().getSystemID().equals(systemId)) {
return schema.getRootDocument();
} else {
for (XMLSchemaDocument sd : schema.getAdditionalDocuments()) {
if (sd.getSystemID().equals(systemId)) {
return sd;
}
}
}
return null;
}
/**
* Constructs a SchemaDocument with the given file's contents, and uses the filename (not the full
* path), as the systemID. Note: this does not check that the file actually represents a valid XML
* Schema.
*
* @param schemaFile the file to convert to a schemadocument
* @return the constructed SchemaDocument
* @throws java.io.FileNotFoundException if the file is not valid
* @throws java.io.IOException if the file is not valid
*/
public static XMLSchemaDocument createSchemaDocument(File schemaFile)
throws FileNotFoundException, IOException {
if (schemaFile == null || !schemaFile.canRead()) {
throw new IllegalArgumentException(
"schemaFile [" + schemaFile + "] must be a valid, readable file.");
}
FileInputStream fileInputStream = new FileInputStream(schemaFile);
String fileContents = IOUtils.toString(fileInputStream);
fileInputStream.close();
String systemID = schemaFile.getName();
XMLSchemaDocument sd = new XMLSchemaDocument();
sd.setSchemaText(fileContents);
sd.setSystemID(systemID);
return sd;
}
