Java Code Examples for org.apache.jena.sparql.expr.NodeValue#getDatatypeURI()
The following examples show how to use
org.apache.jena.sparql.expr.NodeValue#getDatatypeURI() .
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Example 1
| Source File: FUN_JSONPath.java From sparql-generate with Apache License 2.0 | 6 votes |
|
@Override
public NodeValue exec(NodeValue json, NodeValue jsonpath) {
if (json.getDatatypeURI() != null
&& !json.getDatatypeURI().equals(datatypeUri)
&& !json.getDatatypeURI().equals("http://www.w3.org/2001/XMLSchema#string")) {
LOG.debug("The datatype of the first argument should be <" + datatypeUri + ">"
+ " or <http://www.w3.org/2001/XMLSchema#string>. Got "
+ json.getDatatypeURI());
}
if (!jsonpath.isString()) {
LOG.debug("The second argument should be a string. Got " + json);
}
try {
Object value = JsonPath.parse(json.asNode().getLiteralLexicalForm())
.limit(1).read(jsonpath.getString());
return nodeForObject(value);
} catch (Exception ex) {
if(LOG.isDebugEnabled()) {
Node compressed = LogUtils.compress(json.asNode());
LOG.debug("No evaluation of " + compressed + ", " + jsonpath);
}
throw new ExprEvalException("No evaluation of " + jsonpath);
}
}
Example 2
| Source File: FUN_Markdown.java From sparql-generate with Apache License 2.0 | 6 votes |
|
@Override
public NodeValue exec(NodeValue markdown) {
if (markdown.getDatatypeURI() != null
&& !markdown.getDatatypeURI().equals(datatypeUri)
&& !markdown.getDatatypeURI().equals("http://www.w3.org/2001/XMLSchema#string")) {
LOG.debug("The URI of NodeValue1 must be <" + datatypeUri + ">"
+ "or <http://www.w3.org/2001/XMLSchema#string>."
);
}
try {
String md = markdown.asNode().getLiteralLexicalForm();
Parser parser = Parser.builder().build();
Node document = parser.parse(md);
HtmlRenderer renderer = HtmlRenderer.builder().build();
String html = renderer.render(document);
return new NodeValueString(html);
} catch (Exception ex) {
throw new ExprEvalException("FunctionBase: no evaluation", ex);
}
}
Example 3
| Source File: FUN_Markdown.java From sparql-generate with Apache License 2.0 | 6 votes |
|
@Override
public NodeValue exec(NodeValue markdown) {
if (markdown.getDatatypeURI() != null
&& !markdown.getDatatypeURI().equals(datatypeUri)
&& !markdown.getDatatypeURI().equals("http://www.w3.org/2001/XMLSchema#string")) {
LOG.debug("The URI of NodeValue1 must be <" + datatypeUri + ">"
+ "or <http://www.w3.org/2001/XMLSchema#string>."
);
}
try {
String md = markdown.asNode().getLiteralLexicalForm();
Parser parser = Parser.builder().build();
Node document = parser.parse(md);
HtmlRenderer renderer = HtmlRenderer.builder().build();
String html = renderer.render(document);
return new NodeValueString(html);
} catch (Exception ex) {
throw new ExprEvalException("FunctionBase: no evaluation", ex);
}
}
Example 4
| Source File: ITER_JSONListKeys.java From sparql-generate with Apache License 2.0 | 5 votes |
|
@Override
public List<List<NodeValue>> exec(NodeValue json) {
if (json.getDatatypeURI() != null
&& !json.getDatatypeURI().equals(datatypeUri)
&& !json.getDatatypeURI().equals("http://www.w3.org/2001/XMLSchema#string")) {
LOG.debug("The URI of NodeValue1 MUST have been"
+ " <" + datatypeUri + "> or"
+ " <http://www.w3.org/2001/XMLSchema#string>."
+ " Got <" + json.getDatatypeURI() + ">"
);
}
try {
Set<String> keys = GSON.fromJson(json.asNode().getLiteralLexicalForm(), Map.class).keySet();
List<List<NodeValue>> listNodeValues = new ArrayList<>(keys.size());
for (String key : keys) {
NodeValue nodeValue
= NodeValue.makeNode(NodeFactory.createLiteral(key));
listNodeValues.add(Collections.singletonList(nodeValue));
}
LOG.trace("end JSONListKeys");
return listNodeValues;
} catch (Exception ex) {
if(LOG.isDebugEnabled()) {
Node compressed = LogUtils.compress(json.asNode());
LOG.debug("No evaluation for " + compressed, ex);
}
throw new ExprEvalException("No evaluation", ex);
}
}
Example 5
| Source File: ITER_CSVHeaders.java From sparql-generate with Apache License 2.0 | 5 votes |
|
@Override
public List<List<NodeValue>> exec(NodeValue csv) {
if (csv.getDatatypeURI() != null
&& !csv.getDatatypeURI().equals(datatypeUri)
&& !csv.getDatatypeURI().equals("http://www.w3.org/2001/XMLSchema#string")) {
LOG.debug("The URI of NodeValue1 MUST be <" + datatypeUri + ">"
+ "or <http://www.w3.org/2001/XMLSchema#string>."
);
}
try {
String sourceCSV = String.valueOf(csv.asNode().getLiteralLexicalForm());
InputStream is = new ByteArrayInputStream(sourceCSV.getBytes("UTF-8"));
BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
CsvMapReader mapReader = new CsvMapReader(br, CsvPreference.STANDARD_PREFERENCE);
String headers_str[] = mapReader.getHeader(true);
final List<List<NodeValue>> listNodeValues = new ArrayList<>();
Node node;
NodeValue nodeValue;
for (String header : headers_str) {
node = NodeFactory.createLiteral(header);
nodeValue = new NodeValueNode(node);
listNodeValues.add(Collections.singletonList(nodeValue));
}
return listNodeValues;
} catch (Exception ex) {
if(LOG.isDebugEnabled()) {
Node compressed = LogUtils.compress(csv.asNode());
LOG.debug("No evaluation for " + compressed, ex);
}
throw new ExprEvalException("No evaluation ", ex);
}
}
Example 6
| Source File: ITER_CBOR.java From sparql-generate with Apache License 2.0 | 4 votes |
|
@Override
public List<List<NodeValue>> exec(NodeValue cbor, NodeValue jsonpath) {
if (cbor.getDatatypeURI() != null
&& !cbor.getDatatypeURI().equals(datatypeUri)
&& !cbor.getDatatypeURI().equals("http://www.w3.org/2001/XMLSchema#string")) {
LOG.debug("The URI of NodeValue1 MUST be"
+ " <" + datatypeUri + "> or"
+ " <http://www.w3.org/2001/XMLSchema#string>. Got <"
+ cbor.getDatatypeURI() + ">. Returning null.");
}
Configuration conf = Configuration.builder()
.options(Option.ALWAYS_RETURN_LIST).build();
String json = new String(Base64.getDecoder().decode(cbor.asNode().getLiteralLexicalForm().getBytes()));
Gson gson = new Gson();
RDFDatatype dt = TypeMapper.getInstance().getSafeTypeByName(datatypeUri);
try {
List<Object> values = JsonPath
.using(conf)
.parse(json)
.read(jsonpath.getString());
final List<List<NodeValue>> nodeValues = new ArrayList<>();
Node node;
NodeValue nodeValue;
for (Object value : values) {
String jsonstring = gson.toJson(value);
node = NodeFactory.createLiteral(jsonstring, dt);
nodeValue = new NodeValueNode(node);
nodeValues.add(Collections.singletonList(nodeValue));
}
return nodeValues;
} catch (Exception ex) {
if(LOG.isDebugEnabled()) {
Node compressed = LogUtils.compress(cbor.asNode());
LOG.debug("No evaluation of " + compressed + ", " + jsonpath, ex);
}
throw new ExprEvalException("No evaluation of " + jsonpath, ex);
}
}
Example 7
| Source File: FUN_CBOR.java From sparql-generate with Apache License 2.0 | 4 votes |
|
@Override
public NodeValue exec(NodeValue cbor, NodeValue jsonpath) {
if (cbor.getDatatypeURI() != null
&& !cbor.getDatatypeURI().equals(datatypeUri)
&& !cbor.getDatatypeURI().equals("http://www.w3.org/2001/XMLSchema#string")) {
LOG.debug("The URI of NodeValue1 MUST be <" + datatypeUri + ">"
+ "or <http://www.w3.org/2001/XMLSchema#string>."
);
}
String json = new String(Base64.getDecoder().decode(cbor.asNode().getLiteralLexicalForm().getBytes()));
try {
Object value = JsonPath.parse(json)
.limit(1).read(jsonpath.getString());
if (value instanceof String) {
return new NodeValueString((String) value);
} else if (value instanceof Float) {
return new NodeValueFloat((Float) value);
} else if (value instanceof Boolean) {
return new NodeValueBoolean((Boolean) value);
} else if (value instanceof Integer) {
return new NodeValueInteger((Integer) value);
} else if (value instanceof Double) {
return new NodeValueDouble((Double) value);
} else if (value instanceof BigDecimal) {
return new NodeValueDecimal((BigDecimal) value);
} else {
String strValue = String.valueOf(value);
JsonParser parser = new JsonParser();
JsonElement valElement = parser.parse(strValue);
JsonArray list = valElement.getAsJsonArray();
if (list.size() == 1) {
String jsonstring = list.get(0).getAsString();
Node node = NodeFactory.createLiteral(jsonstring);
NodeValue nodeValue = new NodeValueNode(node);
return nodeValue;
} else {
return new NodeValueString(String.valueOf(value));
}
}
} catch (Exception ex) {
if(LOG.isDebugEnabled()) {
LOG.debug("No evaluation of " + jsonpath + " on " + LogUtils.compress(cbor.asNode()), ex);
}
throw new ExprEvalException("FunctionBase: no evaluation", ex);
}
}
Example 8
| Source File: FUN_XPath.java From sparql-generate with Apache License 2.0 | 4 votes |
|
@Override
public NodeValue exec(NodeValue xml, NodeValue xpath) {
if (xml.getDatatypeURI() != null
&& !xml.getDatatypeURI().equals(XML_URI)
&& !xml.getDatatypeURI().equals("http://www.w3.org/2001/XMLSchema#string")) {
LOG.debug("The URI of NodeValue1 MUST be <" + XML_URI + ">"
+ " or <http://www.w3.org/2001/XMLSchema#string>. Got "
+ xml.getDatatypeURI());
}
if (!xpath.isString()) {
LOG.debug("The second argument should be a string. Got " + xpath);
}
DocumentBuilderFactory builderFactory
= DocumentBuilderFactory.newInstance();
builderFactory.setNamespaceAware(true);
DocumentBuilder builder = null;
try {
// THIS IS A HACK !! FIND A BETTER WAY TO MANAGE NAMESPACES
String xmlstring = xml.asNode().getLiteralLexicalForm().replaceAll("xmlns=\"[^\"]*\"", "");
builder = builderFactory.newDocumentBuilder();
InputStream in = new ByteArrayInputStream(xmlstring.getBytes("UTF-8"));
Document document = builder.parse(in);
XPath xPath = XPathFactory.newInstance().newXPath();
xPath.setNamespaceContext(new UniversalNamespaceResolver(document));
//Node node = (Node) xPath.compile(xpath.getString()).evaluate(document, XPathConstants.NODE);
org.w3c.dom.Node xmlNode = (org.w3c.dom.Node) xPath
.compile(xpath.getString())
.evaluate(document, XPathConstants.NODE);
if (xmlNode == null) {
LOG.debug("No evaluation of " + xpath);
throw new ExprEvalException("No evaluation of " + xpath);
}
return nodeForNode(xmlNode);
} catch (Exception ex) {
if(LOG.isDebugEnabled()) {
Node compressed = LogUtils.compress(xml.asNode());
LOG.debug("No evaluation of " + compressed + ", " + xpath, ex);
}
throw new ExprEvalException("No evaluation of " + xpath, ex);
}
}
