public static Node iri(Node nv, String baseIRI) {
if (nv.isURI()) return nv;
if (nv.isBlank()) {
// Skolemization of blank nodes to IRIs : Don't ask, just don't ask.
String x = nv.getBlankNodeLabel();
return Node.createURI("_:" + x);
}
if (nv.isLiteral() && nv.getLiteralDatatype() == null && nv.getLiteralLanguage().equals("")) {
// Plain literal
IRI iri = null;
String iriStr = nv.getLiteralLexicalForm();
// Level of checking?
if (baseIRI != null) {
IRI base = iriFactory.create(baseIRI);
iri = base.create(iriStr);
} else iri = iriFactory.create(iriStr);
if (!iri.isAbsolute()) throw new ExprEvalException("Relative IRI string: " + iriStr);
if (warningsForIRIs && iri.hasViolation(false)) {
String msg = "unknown violation from IRI library";
Iterator<Violation> iter = iri.violations(false);
if (iter.hasNext()) {
Violation viol = iter.next();
msg = viol.getShortMessage();
}
Log.warn(NodeFunctions.class, "Bad IRI: " + msg + ": " + iri);
}
return Node.createURI(iri.toString());
}
throw new ExprEvalException("Can't make an IRI from " + nv);
}
private Object open(IRI uri, boolean in) {
IRI relative = uri.isAbsolute() ? base.relativize(uri, IRIRelativize.CHILD) : uri;
if (relative.isAbsolute())
throw new IllegalArgumentException(
"This TestInputStreamFactory only knows about '" + base + "'.");
String relPath = relative.toString();
if (relPath.length() - relPath.lastIndexOf('.') > 5) {
relPath = relPath + ".rdf";
relative = iriFactory.create(relPath);
}
if (mapBase != null) {
// System.out.println("LazyURL: " + relative + " " + mapBase);
try {
URL url = mapBase.create(relative).toURL();
if (!in) {
if (url.getProtocol().equalsIgnoreCase("file"))
return new FileOutputStream(url.getFile());
throw new IllegalArgumentException("Can only save to file: scheme");
}
return new LazyURLInputStream(url);
} catch (MalformedURLException e) {
throw new JenaException(e);
} catch (IOException e) {
e.printStackTrace();
throw new JenaException(e);
}
}
if (!in) throw new IllegalArgumentException("Can only save to URLs");
if (zip != null) return new LazyZipEntryInputStream(zip, relPath);
else return TestInputStreamFactory.getInputStream(property + relPath);
}
/** Implementation of node-centric functions. */
public class NodeFunctions {
private static final NodeValue xsdString = NodeValue.makeNode(XSD.xstring.asNode());
// -------- sameTerm
public static NodeValue sameTerm(NodeValue nv1, NodeValue nv2) {
return NodeValue.booleanReturn(sameTerm(nv1.asNode(), nv2.asNode()));
}
public static boolean sameTerm(Node n1, Node n2) {
if (n1.equals(n2)) return true;
if (n1.isLiteral() && n2.isLiteral()) {
// But language tags are case insensitive.
String lang1 = n1.getLiteralLanguage();
String lang2 = n2.getLiteralLanguage();
if (!lang1.equals("") && lang1.equalsIgnoreCase(lang2)) {
// Two language tags, equal by case insensitivity.
boolean b = n1.getLiteralLexicalForm().equals(n2.getLiteralLexicalForm());
if (b) return true;
}
}
return false;
}
// -------- RDFterm-equals
public static NodeValue rdfTermEquals(NodeValue nv1, NodeValue nv2) {
return NodeValue.booleanReturn(rdfTermEquals(nv1.asNode(), nv2.asNode()));
}
// Exact as defined by SPARQL spec.
public static boolean rdfTermEquals(Node n1, Node n2) {
if (n1.equals(n2)) return true;
if (n1.isLiteral() && n2.isLiteral()) {
// Two literals, may be sameTerm by language tag case insensitivity.
String lang1 = n1.getLiteralLanguage();
String lang2 = n2.getLiteralLanguage();
if (!lang1.equals("") && lang1.equalsIgnoreCase(lang2)) {
// Two language tags, equal by case insensitivity.
boolean b = n1.getLiteralLexicalForm().equals(n2.getLiteralLexicalForm());
if (b) return true;
}
// Two literals, different terms, different language tags.
NodeValue.raise(new ExprEvalException("Mismatch in RDFterm-equals: " + n1 + ", " + n2));
}
// One or both not a literal.
return false;
}
// -------- str
public static NodeValue str(NodeValue nv) {
return NodeValue.makeString(str(nv.asNode()));
}
public static String str(Node node) {
if (node.isLiteral()) return node.getLiteral().getLexicalForm();
if (node.isURI()) return node.getURI();
// if ( node.isBlank() ) return node.getBlankNodeId().getLabelString() ;
// if ( node.isBlank() ) return "" ;
if (node.isBlank()) NodeValue.raise(new ExprTypeException("Blank node: " + node));
NodeValue.raise(new ExprEvalException("Not a string: " + node));
return "[undef]";
}
// -------- datatype
public static NodeValue datatype(NodeValue nv) {
return NodeValue.makeNode(datatype(nv.asNode()));
}
public static Node datatype(Node node) {
if (!node.isLiteral()) {
NodeValue.raise(new ExprTypeException("datatype: Not a literal: " + node));
return null;
}
String s = node.getLiteralDatatypeURI();
boolean plainLiteral = (s == null || s.equals(""));
if (plainLiteral) {
boolean simpleLiteral =
(node.getLiteralLanguage() == null || node.getLiteralLanguage().equals(""));
if (!simpleLiteral)
NodeValue.raise(new ExprTypeException("datatype: Literal has language tag: " + node));
return XSD.xstring.asNode();
}
return Node.createURI(s);
}
// -------- lang
public static NodeValue lang(NodeValue nv) {
return NodeValue.makeString(lang(nv.asNode()));
}
public static String lang(Node node) {
if (!node.isLiteral())
NodeValue.raise(
new ExprTypeException("lang: Not a literal: " + FmtUtils.stringForNode(node)));
String s = node.getLiteralLanguage();
if (s == null) s = "";
return s;
}
// -------- langMatches
public static NodeValue langMatches(NodeValue nv, NodeValue nvPattern) {
return langMatches(nv, nvPattern.getString());
}
public static NodeValue langMatches(NodeValue nv, String langPattern) {
Node node = nv.asNode();
if (!node.isLiteral()) {
NodeValue.raise(new ExprTypeException("langMatches: not a literal: " + node));
return null;
}
String nodeLang = node.getLiteralLexicalForm();
if (langPattern.equals("*")) {
if (nodeLang == null || nodeLang.equals("")) return NodeValue.FALSE;
return NodeValue.TRUE;
}
// See RFC 3066 (it's "tag (-tag)*)"
String[] langElts = nodeLang.split("-");
String[] langRangeElts = langPattern.split("-");
/*
* Here is the logic to compare language code.
* There is a match if the language matches the
* parts of the pattern - the language may be longer than
* the pattern.
*/
/* RFC 4647 basic filtering.
*
* To do extended:
* 1. Remove any -*- (but not *-)
* 2. Compare primary tags.
* 3. Is the remaining range a subsequence of the remaining language tag?
*/
// // Step one: remove "-*-" (but not "*-")
// int j = 1 ;
// for ( int i = 1 ; i < langRangeElts.length ; i++ )
// {
// String range = langRangeElts[i] ;
// if ( range.equals("*") )
// continue ;
// langRangeElts[j] = range ;
// j++ ;
// }
//
// // Null fill any free space.
// for ( int i = j ; i < langRangeElts.length ; i++ )
// langRangeElts[i] = null ;
// This is basic specific.
if (langRangeElts.length > langElts.length)
// Lang tag longer than pattern tag => can't match
return NodeValue.FALSE;
for (int i = 0; i < langRangeElts.length; i++) {
String range = langRangeElts[i];
if (range == null) break;
// Language longer than range
if (i >= langElts.length) break;
String lang = langElts[i];
if (range.equals("*")) continue;
if (!range.equalsIgnoreCase(lang)) return NodeValue.FALSE;
}
return NodeValue.TRUE;
}
// -------- isURI/isIRI
public static NodeValue isIRI(NodeValue nv) {
return NodeValue.booleanReturn(isIRI(nv.asNode()));
}
public static boolean isIRI(Node node) {
if (node.isURI()) return true;
return false;
}
public static NodeValue isURI(NodeValue nv) {
return NodeValue.booleanReturn(isIRI(nv.asNode()));
}
public static boolean isURI(Node node) {
return isIRI(node);
}
// -------- isBlank
public static NodeValue isBlank(NodeValue nv) {
return NodeValue.booleanReturn(isBlank(nv.asNode()));
}
public static boolean isBlank(Node node) {
return node.isBlank();
}
// -------- isLiteral
public static NodeValue isLiteral(NodeValue nv) {
return NodeValue.booleanReturn(isLiteral(nv.asNode()));
}
public static boolean isLiteral(Node node) {
return node.isLiteral();
}
private static final IRIFactory iriFactory = IRIFactory.iriImplementation();
public static boolean warningsForIRIs = false;
// -------- IRI
public static NodeValue iri(NodeValue nv, String baseIRI) {
if (isIRI(nv.asNode())) return nv;
Node n2 = iri(nv.asNode(), baseIRI);
return NodeValue.makeNode(n2);
}
public static Node iri(Node nv, String baseIRI) {
if (nv.isURI()) return nv;
if (nv.isBlank()) {
// Skolemization of blank nodes to IRIs : Don't ask, just don't ask.
String x = nv.getBlankNodeLabel();
return Node.createURI("_:" + x);
}
if (nv.isLiteral() && nv.getLiteralDatatype() == null && nv.getLiteralLanguage().equals("")) {
// Plain literal
IRI iri = null;
String iriStr = nv.getLiteralLexicalForm();
// Level of checking?
if (baseIRI != null) {
IRI base = iriFactory.create(baseIRI);
iri = base.create(iriStr);
} else iri = iriFactory.create(iriStr);
if (!iri.isAbsolute()) throw new ExprEvalException("Relative IRI string: " + iriStr);
if (warningsForIRIs && iri.hasViolation(false)) {
String msg = "unknown violation from IRI library";
Iterator<Violation> iter = iri.violations(false);
if (iter.hasNext()) {
Violation viol = iter.next();
msg = viol.getShortMessage();
}
Log.warn(NodeFunctions.class, "Bad IRI: " + msg + ": " + iri);
}
return Node.createURI(iri.toString());
}
throw new ExprEvalException("Can't make an IRI from " + nv);
}
public static NodeValue strDatatype(NodeValue v1, NodeValue v2) {
if (!v1.isString()) throw new ExprEvalException("Not a string (arg 1): " + v1);
if (!v2.isIRI()) throw new ExprEvalException("Not an IRI (arg 2): " + v2);
String lex = v1.asString();
Node dt = v2.asNode();
// Check?
Node n = Node.createLiteral(lex, null, Node.getType(dt.getURI()));
return NodeValue.makeNode(n);
}
public static NodeValue strLang(NodeValue v1, NodeValue v2) {
if (!v1.isString()) throw new ExprEvalException("Not a string (arg 1): " + v1);
if (!v2.isString()) throw new ExprEvalException("Not a string (arg 2): " + v2);
String lex = v1.asString();
String lang = v2.asString();
// Check?
Node n = Node.createLiteral(lex, lang, null);
return NodeValue.makeNode(n);
}
}
/**
* opens the file, and really does it - not a delayed lazy opening.
*
* @param str the URI to open
* @return null on some failures
* @throws IOException
*/
public InputStream fullyOpen(String str) throws IOException {
InputStream in = open(iriFactory.create(str));
if (in instanceof LazyInputStream && !((LazyInputStream) in).connect()) return null;
return in;
}
/**
* A lazy open. The I/O only starts, and resources are only allocated on first read.
*
* @param str The URI to open
*/
public InputStream open(String str) {
return open(iriFactory.create(str));
}
/**
* This class provides input streams that: 1: can be from a URL or from a zip 2: do not actually
* open until the first read
*
* @author Jeremy Carroll
*/
public class TestInputStreamFactory {
final IRIFactory iriFactory = IRIFactory.jenaImplementation();
private final IRI base;
private final IRI mapBase;
private final ZipFile zip;
private final String property;
private String createMe = "error";
/**
* @param baseDir A prefix of all URLs accessed through this factory.
* @param getBaseDir Replace the baseDir into getBaseDir before opening any URL.
*/
public TestInputStreamFactory(IRI baseDir, IRI getBaseDir) {
base = baseDir;
mapBase = getBaseDir;
zip = null;
property = null;
}
/**
* @param baseDir A prefix of all URLs accessed through this factory.
* @param zip To open a URL remove the baseDir from the URL and get the named file from the zip.
*/
public TestInputStreamFactory(IRI baseDir, ZipFile zip) {
base = baseDir;
mapBase = null;
this.zip = zip;
property = null;
}
/**
* @param baseDir A prefix of all URLs accessed through this factory.
* @param zip To open a URL remove the baseDir from the URL and get the named file from the zip.
*/
public TestInputStreamFactory(IRI baseDir, String propDir) {
createMe =
"new TestInputStreamFactory(URI.create(\""
+ baseDir.toString()
+ "\"),\""
+ propDir
+ "\")";
base = baseDir;
mapBase = null;
this.zip = null;
property = propDir.endsWith("/") ? propDir : propDir + "/";
}
public IRI getBase() {
return base;
}
/**
* A lazy open. The I/O only starts, and resources are only allocated on first read.
*
* @param str The URI to open
*/
public InputStream open(String str) {
return open(iriFactory.create(str));
}
/**
* opens the file, and really does it - not a delayed lazy opening.
*
* @param str the URI to open
* @return null on some failures
* @throws IOException
*/
public InputStream fullyOpen(String str) throws IOException {
InputStream in = open(iriFactory.create(str));
if (in instanceof LazyInputStream && !((LazyInputStream) in).connect()) return null;
return in;
}
/**
* A lazy open. The I/O only starts, and resources are only allocated on first read.
*
* @param uri to be opened.
* @return the opened stream
*/
public InputStream open(IRI uri) {
return (InputStream) open(uri, true);
}
public boolean savable() {
return mapBase != null && mapBase.getScheme().equalsIgnoreCase("file");
}
public OutputStream openOutput(String str) {
OutputStream foo = (OutputStream) open(iriFactory.create(str), false);
// System.out.println(foo.toString());
return foo;
}
public String getCreationJava() {
return createMe;
}
private Object open(IRI uri, boolean in) {
IRI relative = uri.isAbsolute() ? base.relativize(uri, IRIRelativize.CHILD) : uri;
if (relative.isAbsolute())
throw new IllegalArgumentException(
"This TestInputStreamFactory only knows about '" + base + "'.");
String relPath = relative.toString();
if (relPath.length() - relPath.lastIndexOf('.') > 5) {
relPath = relPath + ".rdf";
relative = iriFactory.create(relPath);
}
if (mapBase != null) {
// System.out.println("LazyURL: " + relative + " " + mapBase);
try {
URL url = mapBase.create(relative).toURL();
if (!in) {
if (url.getProtocol().equalsIgnoreCase("file"))
return new FileOutputStream(url.getFile());
throw new IllegalArgumentException("Can only save to file: scheme");
}
return new LazyURLInputStream(url);
} catch (MalformedURLException e) {
throw new JenaException(e);
} catch (IOException e) {
e.printStackTrace();
throw new JenaException(e);
}
}
if (!in) throw new IllegalArgumentException("Can only save to URLs");
if (zip != null) return new LazyZipEntryInputStream(zip, relPath);
else return TestInputStreamFactory.getInputStream(property + relPath);
}
private static InputStream getInputStream(String prop) {
// System.err.println(prop);
ClassLoader loader = TestInputStreamFactory.class.getClassLoader();
if (loader == null) throw new SecurityException("Cannot access class loader");
InputStream in =
// loader.getResourceAsStream("com/hp/hpl/jena/rdf/arp/test/data/" + prop);
loader.getResourceAsStream("testing/" + prop);
// System.out.println(prop);
if (in == null) {
try {
in = new FileInputStream("testing/" + prop);
} catch (IOException e) {
}
if (in == null)
throw new IllegalArgumentException("Resource: " + prop + " not found on class path.");
}
return in;
}
public IRI getMapBase() {
return mapBase;
}
}
public OutputStream openOutput(String str) {
OutputStream foo = (OutputStream) open(iriFactory.create(str), false);
// System.out.println(foo.toString());
return foo;
}
/**
* Holds static methods used for verify various property valuse
*
* @author Gary O'Neall
*/
public class SpdxVerificationHelper {
static IRIFactory iriFactory = IRIFactory.semanticWebImplementation();
static HashSet<String> VALID_FILE_TYPES = new HashSet<String>();
static {
VALID_FILE_TYPES.add("SOURCE");
VALID_FILE_TYPES.add("BINARY");
VALID_FILE_TYPES.add("ARCHIVE");
VALID_FILE_TYPES.add("OTHER");
}
static final String[] VALID_CREATOR_PREFIXES = new String[] {"Person:", "Organization:", "Tool:"};
static final String[] VALID_ORIGINATOR_SUPPLIER_PREFIXES =
new String[] {SpdxRdfConstants.NOASSERTION_VALUE, "Person:", "Organization:"};
static String verifyChecksumString(String checksum) {
if (checksum.length() != 40) {
return "Invalid number of characters for checksum";
}
for (int i = 0; i < checksum.length(); i++) {
char c = checksum.charAt(i);
if (!((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'))) {
return "Invalid checksum string character at position " + String.valueOf(i);
}
}
return null; // if we got here, all OK
}
/**
* @param fileType
* @return
*/
public static String verifyFileType(String fileType) {
if (!VALID_FILE_TYPES.contains(fileType)) {
return "Unrecognized file type";
} else {
return null;
}
}
/**
* Verifies a creator string value
*
* @param creator
* @return
*/
public static String verifyCreator(String creator) {
boolean ok = false;
for (int i = 0; i < VALID_CREATOR_PREFIXES.length; i++) {
if (creator.startsWith(VALID_CREATOR_PREFIXES[i])) {
ok = true;
break;
}
}
if (!ok) {
StringBuilder sb = new StringBuilder("Creator does not start with one of ");
sb.append(VALID_CREATOR_PREFIXES[0]);
for (int i = 1; i < VALID_CREATOR_PREFIXES.length; i++) {
sb.append(", ");
sb.append(VALID_CREATOR_PREFIXES[i]);
}
return sb.toString();
} else {
return null;
}
}
/**
* Verifies the originator string
*
* @param originator
* @return
*/
public static String verifyOriginator(String originator) {
return verifyOriginatorOrSupplier(originator);
}
/**
* Verifies the supplier String
*
* @param supplier
* @return
*/
public static String verifySupplier(String supplier) {
return verifyOriginatorOrSupplier(supplier);
}
/**
* Verifies a the originator or supplier
*
* @param creator
* @return
*/
private static String verifyOriginatorOrSupplier(String originatorOrSupplier) {
boolean ok = false;
for (int i = 0; i < VALID_ORIGINATOR_SUPPLIER_PREFIXES.length; i++) {
if (originatorOrSupplier.startsWith(VALID_ORIGINATOR_SUPPLIER_PREFIXES[i])) {
ok = true;
break;
}
}
if (!ok) {
StringBuilder sb = new StringBuilder("Value must start with one of ");
sb.append(VALID_ORIGINATOR_SUPPLIER_PREFIXES[0]);
for (int i = 1; i < VALID_ORIGINATOR_SUPPLIER_PREFIXES.length; i++) {
sb.append(", ");
sb.append(VALID_ORIGINATOR_SUPPLIER_PREFIXES[i]);
}
return sb.toString();
} else {
return null;
}
}
/**
* @param creationDate
* @return
*/
public static String verifyDate(String creationDate) {
SimpleDateFormat format = new SimpleDateFormat(SpdxRdfConstants.SPDX_DATE_FORMAT);
try {
format.parse(creationDate);
} catch (ParseException e) {
return ("Invalid date format: " + e.getMessage());
}
return null;
}
/**
* @param reviewer
* @return
*/
public static String verifyReviewer(String reviewer) {
if (!reviewer.startsWith("Person:")) {
return "Reviewer does not start with Person:";
} else {
return null;
}
}
/**
* Validates a URI is indeed valid
*
* @param uri
* @return
*/
public static boolean isValidUri(String uri) {
return !iriFactory.create(uri).hasViolation(false);
}
}
/**
* Validates a URI is indeed valid
*
* @param uri
* @return
*/
public static boolean isValidUri(String uri) {
return !iriFactory.create(uri).hasViolation(false);
}
