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[New] Extended StrolchXmlHelper to also write namespace

This commit is contained in:
Robert von Burg 2023-03-16 21:47:29 +01:00
parent a166e3db6f
commit 358c37b9eb
Signed by: eitch
GPG Key ID: 75DB9C85C74331F7
2 changed files with 81 additions and 6 deletions
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42
model/src/main/java/li/strolch/model/xml/StrolchElementListenerToListListener.java Normal file
View File

@ -0,0 +1,42 @@
package li.strolch.model.xml;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Stream;
import li.strolch.model.Order;
import li.strolch.model.Resource;
import li.strolch.model.StrolchRootElement;
import li.strolch.model.activity.Activity;
public class StrolchElementListenerToListListener implements StrolchElementListener {
private final List<StrolchRootElement> elements;
public StrolchElementListenerToListListener() {
this.elements = new ArrayList<>();
}
@Override
public void notifyResource(Resource resource) {
this.elements.add(resource);
}
@Override
public void notifyOrder(Order order) {
this.elements.add(order);
}
@Override
public void notifyActivity(Activity activity) {
this.elements.add(activity);
}
public Stream<StrolchRootElement> streamElements() {
return elements.stream();
}
public List<StrolchRootElement> getElements() {
return elements;
}
}

45
model/src/main/java/li/strolch/model/xml/StrolchXmlHelper.java
View File

@ -31,6 +31,10 @@ import org.slf4j.LoggerFactory;
public class StrolchXmlHelper {
private static final Logger logger = LoggerFactory.getLogger(StrolchXmlHelper.class);
public static final String W3C_XSD_URI = "http://www.w3.org/2001/XMLSchema-instance";
public static final String STROLCH_MODEL_NS_URI = "https://strolch.li/xsd/StrolchModel-2.0.xsd";
public static final String STROLCH_MODEL_NS = "https://strolch.li/schema/StrolchModel.xsd";
public static final String STROLCH_MODEL_XSD_LOCATION = STROLCH_MODEL_NS + " " + STROLCH_MODEL_NS_URI;
public static Resource parseAndReturnResource(String xml, String id) {
return parse(xml).getResource(id);
@ -74,19 +78,19 @@ public class StrolchXmlHelper {
}
public static List<StrolchRootElement> parseFile(File file) {
SimpleStrolchElementListener elementListener = new SimpleStrolchElementListener();
StrolchElementListenerToListListener elementListener = new StrolchElementListenerToListListener();
new XmlModelSaxFileReader(elementListener, file, false).parseFile();
return elementListener.getElements();
}
public static Stream<StrolchRootElement> parseFileAsStream(File file) {
SimpleStrolchElementListener elementListener = new SimpleStrolchElementListener();
StrolchElementListenerToListListener elementListener = new StrolchElementListenerToListListener();
new XmlModelSaxFileReader(elementListener, file, false).parseFile();
return elementListener.streamElements();
}
public static List<StrolchRootElement> parseStream(InputStream stream, String encoding) {
SimpleStrolchElementListener elementListener = new SimpleStrolchElementListener();
StrolchElementListenerToListListener elementListener = new StrolchElementListenerToListListener();
new XmlModelSaxStreamReader(elementListener, stream, encoding).parseStream();
return elementListener.getElements();
}
@ -102,9 +106,13 @@ public class StrolchXmlHelper {
}
public static void writeToFile(File file, Stream<? extends StrolchRootElement> elements) {
writeToFile(file, elements, false);
}
public static void writeToFile(File file, Stream<? extends StrolchRootElement> elements, boolean withNamespace) {
int size;
try (OutputStream out = Files.newOutputStream(file.toPath())) {
size = writeToStream(out, elements);
size = writeToStream(out, elements, withNamespace);
} catch (Exception e) {
throw new RuntimeException("Failed to write elements to " + file, e);
}
@ -135,7 +143,12 @@ public class StrolchXmlHelper {
}
public static int writeToStream(OutputStream out, Stream<? extends StrolchRootElement> elements) throws Exception {
XMLStreamWriter writer = prepareXmlStreamWriter(out);
return writeToStream(out, elements, false);
}
public static int writeToStream(OutputStream out, Stream<? extends StrolchRootElement> elements,
boolean withNamespace) throws Exception {
XMLStreamWriter writer = prepareXmlStreamWriter(out, withNamespace);
AtomicInteger size = new AtomicInteger();
elements.peek(e -> size.incrementAndGet()).forEach(e -> e.accept(new StrolchElementToSaxWriterVisitor(writer)));
writer.writeEndDocument();
@ -153,20 +166,40 @@ public class StrolchXmlHelper {
public static XMLStreamWriter prepareXmlStreamWriter(OutputStream out)
throws FactoryConfigurationError, XMLStreamException {
return prepareXmlStreamWriter(out, false);
}
public static XMLStreamWriter prepareXmlStreamWriter(OutputStream out, boolean withNamespace)
throws FactoryConfigurationError, XMLStreamException {
XMLOutputFactory factory = XMLOutputFactory.newInstance();
XMLStreamWriter writer = factory.createXMLStreamWriter(out, DEFAULT_ENCODING);
return prepareXmlStreamWriter(writer);
if (withNamespace)
writer.setDefaultNamespace(STROLCH_MODEL_NS);
return prepareXmlStreamWriter(writer, withNamespace);
}
public static XMLStreamWriter prepareXmlStreamWriter(XMLStreamWriter writer)
throws FactoryConfigurationError, XMLStreamException {
return prepareXmlStreamWriter(writer, false);
}
public static XMLStreamWriter prepareXmlStreamWriter(XMLStreamWriter writer, boolean withNamespace)
throws FactoryConfigurationError, XMLStreamException {
writer = new IndentingXMLStreamWriter(writer);
writer.writeStartDocument(DEFAULT_ENCODING, DEFAULT_XML_VERSION);
writer.writeStartElement(Tags.STROLCH_MODEL);
if (withNamespace) {
writer.writeAttribute(STROLCH_MODEL_NS, "xmlns:xsi", W3C_XSD_URI);
writer.writeAttribute(STROLCH_MODEL_NS, "xmlns", STROLCH_MODEL_NS);
writer.writeAttribute(STROLCH_MODEL_NS, "xsi:schemaLocation", STROLCH_MODEL_XSD_LOCATION);
}
return writer;
}
}