/**
* @param writer
* @param includeHistory
* @param session
* @throws DataAccessException
* @throws HibernateException
*/
private void writeObjects(
final Writer writer,
final boolean includeHistory,
final Session session,
final boolean preserveIds)
throws DataAccessException, HibernateException {
// Container für die Objekte
final List<Object> all = new ArrayList<Object>();
final XStream stream = initXStream(session, true);
final XStream defaultXStream = initXStream(session, false);
session.flush();
// Alles laden
List<?> list = session.createQuery("select o from java.lang.Object o").setReadOnly(true).list();
list = (List<?>) CollectionUtils.select(list, PredicateUtils.uniquePredicate());
final int size = list.size();
log.info("Writing " + size + " objects");
for (final Iterator<?> it = list.iterator(); it.hasNext(); ) {
final Object obj = it.next();
if (log.isDebugEnabled()) {
log.debug("loaded object " + obj);
}
if ((obj instanceof HistoryEntry || obj instanceof PropertyDelta)
&& includeHistory == false) {
continue;
}
Hibernate.initialize(obj);
final Class<?> targetClass = HibernateProxyHelper.getClassWithoutInitializingProxy(obj);
final ClassMetadata classMetadata = session.getSessionFactory().getClassMetadata(targetClass);
if (classMetadata == null) {
log.fatal("Can't init " + obj + " of type " + targetClass);
continue;
}
// initalisierung des Objekts...
defaultXStream.marshal(obj, new CompactWriter(new NullWriter()));
if (preserveIds == false) {
// Nun kann die ID gelöscht werden
classMetadata.setIdentifier(obj, null, EntityMode.POJO);
}
if (log.isDebugEnabled()) {
log.debug("loading evicted object " + obj);
}
if (this.ignoreFromTopLevelListing.contains(targetClass) == false) {
all.add(obj);
}
}
// und schreiben
try {
writer.write("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n");
} catch (final IOException ex) {
// ignore, will fail on stream.marshal()
}
log.info("Wrote " + all.size() + " objects");
final MarshallingStrategy marshallingStrategy = new ProxyIdRefMarshallingStrategy();
stream.setMarshallingStrategy(marshallingStrategy);
stream.marshal(all, new PrettyPrintWriter(writer));
}
/** Performs tasks to resolve the lazy instantiation. */
private synchronized void init() {
if (!initialized) {
// Mimic the behavior of XStream's JVM class
String vendor = System.getProperty("java.vm.vendor");
float version = 1.3f;
try {
version = Float.parseFloat(System.getProperty("java.version").substring(0, 3));
} catch (NumberFormatException nfe) {
// Keep the default
}
Class unsafe = null;
try {
unsafe = Class.forName("sun.misc.Unsafe", false, getClass().getClassLoader());
} catch (ClassNotFoundException cnfe) {
// Keep the default
}
ReflectionProvider reflectionProvider = null;
if ((vendor.contains("Sun")
|| vendor.contains("Oracle")
|| vendor.contains("Apple")
|| vendor.contains("Hewlett-Packard")
|| vendor.contains("IBM")
|| vendor.contains("Blackdown"))
&& version >= 1.4f
&& unsafe != null) {
try {
reflectionProvider =
(ReflectionProvider)
Class.forName(
"com.thoughtworks.xstream.converters.reflection.Sun14ReflectionProvider",
false,
getClass().getClassLoader())
.newInstance();
} catch (InstantiationException ie) {
reflectionProvider = new PureJavaReflectionProvider();
} catch (IllegalAccessException iae) {
reflectionProvider = new PureJavaReflectionProvider();
} catch (ClassNotFoundException cnfe) {
reflectionProvider = new PureJavaReflectionProvider();
}
} else {
reflectionProvider = new PureJavaReflectionProvider();
}
HierarchicalStreamDriver driver = new DomDriver();
xs = new XStream(reflectionProvider, driver);
xs.setMarshallingStrategy(new LockssReferenceByXPathMarshallingStrategy(lockssContext));
xs.registerConverter(new LockssDateConverter());
initialized = true;
}
}
/** @return */
private XStream initXStream(final Session session, final boolean nullifyPk) {
final XStream xstream =
new XStream() {
@Override
protected MapperWrapper wrapMapper(final MapperWrapper next) {
return new HibernateMapper(new HibernateCollectionsMapper(next));
}
};
// Converter für die Hibernate-Collections
xstream.registerConverter(new HibernateCollectionConverter(xstream.getConverterLookup()));
xstream.registerConverter(
new HibernateProxyConverter(
xstream.getMapper(), new PureJavaReflectionProvider(), xstream.getConverterLookup()),
XStream.PRIORITY_VERY_HIGH);
xstream.setMarshallingStrategy(
new XStreamMarshallingStrategy(XStreamMarshallingStrategy.RELATIVE));
init(xstream);
return xstream;
}
@Test
public void synchronizedCollectionText()
throws NoSuchFieldException, SecurityException, IllegalArgumentException,
IllegalAccessException {
Map<String, String> map = Collections.synchronizedMap(new LinkedHashMap<String, String>());
map.put("hello", "world");
map.put("second", "value");
XStream xs = new XStream();
xs.setMarshallingStrategy(
new MigratingMarshallingStrategy(new MigrationManager("com.t3.", true)));
System.out.println(xs.toXML(map));
Map<String, String> map2 = (Map<String, String>) xs.fromXML(xs.toXML(map));
Assert.assertEquals(map, map2);
Assert.assertEquals(map.getClass(), map2.getClass());
// make shure that is map is of the same type
Field f = map.getClass().getDeclaredField("m");
f.setAccessible(true);
Assert.assertEquals(f.get(map).getClass(), LinkedHashMap.class);
Assert.assertEquals(f.get(map2).getClass(), LinkedHashMap.class);
}
private Pair<String, Object> parseEntry(Node node) {
NodeList nl = node.getChildNodes();
String name = null;
Object value = null;
for (int i = 0; i < nl.getLength(); i++) {
Node ii = nl.item(i);
ii = resolve(ii);
System.out.println(" entry, name <" + ii.getNodeName() + ">");
if (ii.getNodeName().equals("field.core.dispatch.iVisualElement_-VisualElementProperty")) {
NodeList childNodes = ii.getChildNodes();
for (int j = 0; j < childNodes.getLength(); j++) {
Node cn = childNodes.item(j);
cn = resolve(cn);
System.out.println(" property <" + cn.getNodeName() + ">");
if (cn.getNodeName().equals("name")) {
name = cn.getTextContent();
System.out.println(" name is <" + name + ">");
}
}
} else if (ii.getNodeName().equals("string")) {
value = ii.getTextContent().trim();
} else if (ii.getNodeName().equals("float")) {
value = Float.parseFloat(ii.getTextContent().trim());
} else if (ii.getNodeName().equals("double")) {
value = Double.parseDouble(ii.getTextContent().trim());
} else {
; // System.out.println(" node is xml <" + loadProperties + ">");
if (loadProperties) {
try {
String xml = nodeToString(ii);
if (xml.trim().length() == 0) continue;
if (xml.contains("reference=")) continue;
if (xml.contains("id=")) continue;
; // System.out.println(" xml is <" + xml + ">");
xml = "<object-stream>" + xml + "</object-stream>";
XStream stream = new XStream(new Sun14ReflectionProvider());
stream.registerConverter(new ChannelSerializer());
stream.registerConverter(new FloatBufferSerializer());
stream.registerConverter(new MarkerSerializer(stream.getClassMapper()));
stream.setMarshallingStrategy(new ReferenceByIdMarshallingStrategy());
Object o = stream.createObjectInputStream(new StringReader(xml)).readObject();
value = o;
; // System.out.println(" -- loaded <" + value + ">");
} catch (Throwable t) {
System.out.println(
" trouble loading contents of <" + ii.getNodeName() + "> continuing on");
}
}
}
}
// System.out.println(" got <" + name + " = " + value + ">");
if (name == null) return null;
if (value == null) return null;
else return new Pair<String, Object>(name, value);
}
/**
* Configure the XStream instance with this marshaller's bean properties.
*
* @param xstream the {@code XStream} instance
*/
protected void configureXStream(XStream xstream) {
if (this.converters != null) {
for (int i = 0; i < this.converters.length; i++) {
if (this.converters[i] instanceof Converter) {
xstream.registerConverter((Converter) this.converters[i], i);
} else if (this.converters[i] instanceof SingleValueConverter) {
xstream.registerConverter((SingleValueConverter) this.converters[i], i);
} else {
throw new IllegalArgumentException(
"Invalid ConverterMatcher [" + this.converters[i] + "]");
}
}
}
if (this.marshallingStrategy != null) {
xstream.setMarshallingStrategy(this.marshallingStrategy);
}
if (this.mode != null) {
xstream.setMode(this.mode);
}
try {
if (this.aliases != null) {
Map<String, Class<?>> classMap = toClassMap(this.aliases);
for (Map.Entry<String, Class<?>> entry : classMap.entrySet()) {
xstream.alias(entry.getKey(), entry.getValue());
}
}
if (this.aliasesByType != null) {
Map<String, Class<?>> classMap = toClassMap(this.aliasesByType);
for (Map.Entry<String, Class<?>> entry : classMap.entrySet()) {
xstream.aliasType(entry.getKey(), entry.getValue());
}
}
if (this.fieldAliases != null) {
for (Map.Entry<String, String> entry : this.fieldAliases.entrySet()) {
String alias = entry.getValue();
String field = entry.getKey();
int idx = field.lastIndexOf('.');
if (idx != -1) {
String className = field.substring(0, idx);
Class<?> clazz = ClassUtils.forName(className, this.beanClassLoader);
String fieldName = field.substring(idx + 1);
xstream.aliasField(alias, clazz, fieldName);
} else {
throw new IllegalArgumentException("Field name [" + field + "] does not contain '.'");
}
}
}
} catch (ClassNotFoundException ex) {
throw new IllegalStateException("Failed to load specified alias class", ex);
}
if (this.useAttributeForTypes != null) {
for (Class<?> type : this.useAttributeForTypes) {
xstream.useAttributeFor(type);
}
}
if (this.useAttributeFor != null) {
for (Map.Entry<?, ?> entry : this.useAttributeFor.entrySet()) {
if (entry.getKey() instanceof String) {
if (entry.getValue() instanceof Class) {
xstream.useAttributeFor((String) entry.getKey(), (Class<?>) entry.getValue());
} else {
throw new IllegalArgumentException(
"'useAttributesFor' takes Map<String, Class> when using a map key of type String");
}
} else if (entry.getKey() instanceof Class) {
Class<?> key = (Class<?>) entry.getKey();
if (entry.getValue() instanceof String) {
xstream.useAttributeFor(key, (String) entry.getValue());
} else if (entry.getValue() instanceof List) {
@SuppressWarnings("unchecked")
List<Object> listValue = (List<Object>) entry.getValue();
for (Object element : listValue) {
if (element instanceof String) {
xstream.useAttributeFor(key, (String) element);
}
}
} else {
throw new IllegalArgumentException(
"'useAttributesFor' property takes either Map<Class, String> "
+ "or Map<Class, List<String>> when using a map key of type Class");
}
} else {
throw new IllegalArgumentException(
"'useAttributesFor' property takes either a map key of type String or Class");
}
}
}
if (this.implicitCollections != null) {
for (Map.Entry<Class<?>, String> entry : this.implicitCollections.entrySet()) {
String[] collectionFields = StringUtils.commaDelimitedListToStringArray(entry.getValue());
for (String collectionField : collectionFields) {
xstream.addImplicitCollection(entry.getKey(), collectionField);
}
}
}
if (this.omittedFields != null) {
for (Map.Entry<Class<?>, String> entry : this.omittedFields.entrySet()) {
String[] fields = StringUtils.commaDelimitedListToStringArray(entry.getValue());
for (String field : fields) {
xstream.omitField(entry.getKey(), field);
}
}
}
if (this.annotatedClasses != null) {
xstream.processAnnotations(this.annotatedClasses);
}
if (this.autodetectAnnotations) {
xstream.autodetectAnnotations(true);
}
}
