cucumber.deps.com.thoughtworks.xstream.XStream Maven / Gradle / Ivy
/*
* Copyright (C) 2003, 2004, 2005, 2006 Joe Walnes.
* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 XStream Committers.
* All rights reserved.
*
* The software in this package is published under the terms of the BSD
* style license a copy of which has been included with this distribution in
* the LICENSE.txt file.
*
* Created on 26. September 2003 by Joe Walnes
*/
package com.thoughtworks.xstream;
import java.io.EOFException;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.NotActiveException;
import java.io.ObjectInputStream;
import java.io.ObjectInputValidation;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.net.URI;
import java.net.URL;
import java.util.ArrayList;
import java.util.BitSet;
import java.util.Calendar;
import java.util.Collections;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
import java.util.Vector;
import com.thoughtworks.xstream.converters.ConversionException;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.ConverterLookup;
import com.thoughtworks.xstream.converters.ConverterRegistry;
import com.thoughtworks.xstream.converters.DataHolder;
import com.thoughtworks.xstream.converters.SingleValueConverter;
import com.thoughtworks.xstream.converters.SingleValueConverterWrapper;
import com.thoughtworks.xstream.converters.basic.BigDecimalConverter;
import com.thoughtworks.xstream.converters.basic.BigIntegerConverter;
import com.thoughtworks.xstream.converters.basic.BooleanConverter;
import com.thoughtworks.xstream.converters.basic.ByteConverter;
import com.thoughtworks.xstream.converters.basic.CharConverter;
import com.thoughtworks.xstream.converters.basic.DateConverter;
import com.thoughtworks.xstream.converters.basic.DoubleConverter;
import com.thoughtworks.xstream.converters.basic.FloatConverter;
import com.thoughtworks.xstream.converters.basic.IntConverter;
import com.thoughtworks.xstream.converters.basic.LongConverter;
import com.thoughtworks.xstream.converters.basic.NullConverter;
import com.thoughtworks.xstream.converters.basic.ShortConverter;
import com.thoughtworks.xstream.converters.basic.StringBufferConverter;
import com.thoughtworks.xstream.converters.basic.StringConverter;
import com.thoughtworks.xstream.converters.basic.URIConverter;
import com.thoughtworks.xstream.converters.basic.URLConverter;
import com.thoughtworks.xstream.converters.collections.ArrayConverter;
import com.thoughtworks.xstream.converters.collections.BitSetConverter;
import com.thoughtworks.xstream.converters.collections.CharArrayConverter;
import com.thoughtworks.xstream.converters.collections.CollectionConverter;
import com.thoughtworks.xstream.converters.collections.MapConverter;
import com.thoughtworks.xstream.converters.collections.PropertiesConverter;
import com.thoughtworks.xstream.converters.collections.SingletonCollectionConverter;
import com.thoughtworks.xstream.converters.collections.SingletonMapConverter;
import com.thoughtworks.xstream.converters.collections.TreeMapConverter;
import com.thoughtworks.xstream.converters.collections.TreeSetConverter;
import com.thoughtworks.xstream.converters.extended.ColorConverter;
import com.thoughtworks.xstream.converters.extended.DynamicProxyConverter;
import com.thoughtworks.xstream.converters.extended.EncodedByteArrayConverter;
import com.thoughtworks.xstream.converters.extended.FileConverter;
import com.thoughtworks.xstream.converters.extended.FontConverter;
import com.thoughtworks.xstream.converters.extended.GregorianCalendarConverter;
import com.thoughtworks.xstream.converters.extended.JavaClassConverter;
import com.thoughtworks.xstream.converters.extended.JavaFieldConverter;
import com.thoughtworks.xstream.converters.extended.JavaMethodConverter;
import com.thoughtworks.xstream.converters.extended.LocaleConverter;
import com.thoughtworks.xstream.converters.extended.LookAndFeelConverter;
import com.thoughtworks.xstream.converters.extended.SqlDateConverter;
import com.thoughtworks.xstream.converters.extended.SqlTimeConverter;
import com.thoughtworks.xstream.converters.extended.SqlTimestampConverter;
import com.thoughtworks.xstream.converters.extended.TextAttributeConverter;
import com.thoughtworks.xstream.converters.reflection.ExternalizableConverter;
import com.thoughtworks.xstream.converters.reflection.ReflectionConverter;
import com.thoughtworks.xstream.converters.reflection.ReflectionProvider;
import com.thoughtworks.xstream.converters.reflection.SelfStreamingInstanceChecker;
import com.thoughtworks.xstream.converters.reflection.SerializableConverter;
import com.thoughtworks.xstream.core.DefaultConverterLookup;
import com.thoughtworks.xstream.core.JVM;
import com.thoughtworks.xstream.core.MapBackedDataHolder;
import com.thoughtworks.xstream.core.ReferenceByIdMarshallingStrategy;
import com.thoughtworks.xstream.core.ReferenceByXPathMarshallingStrategy;
import com.thoughtworks.xstream.core.TreeMarshallingStrategy;
import com.thoughtworks.xstream.core.util.ClassLoaderReference;
import com.thoughtworks.xstream.core.util.CompositeClassLoader;
import com.thoughtworks.xstream.core.util.CustomObjectInputStream;
import com.thoughtworks.xstream.core.util.CustomObjectOutputStream;
import com.thoughtworks.xstream.io.HierarchicalStreamDriver;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
import com.thoughtworks.xstream.io.StatefulWriter;
import com.thoughtworks.xstream.io.xml.XppDriver;
import com.thoughtworks.xstream.mapper.AnnotationConfiguration;
import com.thoughtworks.xstream.mapper.ArrayMapper;
import com.thoughtworks.xstream.mapper.AttributeAliasingMapper;
import com.thoughtworks.xstream.mapper.AttributeMapper;
import com.thoughtworks.xstream.mapper.CachingMapper;
import com.thoughtworks.xstream.mapper.ClassAliasingMapper;
import com.thoughtworks.xstream.mapper.DefaultImplementationsMapper;
import com.thoughtworks.xstream.mapper.DefaultMapper;
import com.thoughtworks.xstream.mapper.DynamicProxyMapper;
import com.thoughtworks.xstream.mapper.FieldAliasingMapper;
import com.thoughtworks.xstream.mapper.ImmutableTypesMapper;
import com.thoughtworks.xstream.mapper.ImplicitCollectionMapper;
import com.thoughtworks.xstream.mapper.LocalConversionMapper;
import com.thoughtworks.xstream.mapper.Mapper;
import com.thoughtworks.xstream.mapper.MapperWrapper;
import com.thoughtworks.xstream.mapper.OuterClassMapper;
import com.thoughtworks.xstream.mapper.PackageAliasingMapper;
import com.thoughtworks.xstream.mapper.SystemAttributeAliasingMapper;
import com.thoughtworks.xstream.mapper.XStream11XmlFriendlyMapper;
/**
* Simple facade to XStream library, a Java-XML serialization tool.
*
*
* Example
*
*
* XStream xstream = new XStream();
* String xml = xstream.toXML(myObject); // serialize to XML
* Object myObject2 = xstream.fromXML(xml); // deserialize from XML
*
*
*
*
*
* Aliasing classes
*
*
* To create shorter XML, you can specify aliases for classes using the alias()
* method. For example, you can shorten all occurrences of element
* <com.blah.MyThing> to <my-thing> by registering an
* alias for the class.
*
*
*
*
*
* xstream.alias("my-thing", MyThing.class);
*
*
*
*
*
* Converters
*
*
* XStream contains a map of {@link com.thoughtworks.xstream.converters.Converter} instances, each
* of which acts as a strategy for converting a particular type of class to XML and back again. Out
* of the box, XStream contains converters for most basic types (String, Date, int, boolean, etc)
* and collections (Map, List, Set, Properties, etc). For other objects reflection is used to
* serialize each field recursively.
*
*
*
* Extra converters can be registered using the registerConverter() method. Some
* non-standard converters are supplied in the {@link com.thoughtworks.xstream.converters.extended}
* package and you can create your own by implementing the
* {@link com.thoughtworks.xstream.converters.Converter} interface.
*
*
*
*
* Example
*
*
* xstream.registerConverter(new SqlTimestampConverter());
* xstream.registerConverter(new DynamicProxyConverter());
*
*
*
*
*
* The converters can be registered with an explicit priority. By default they are registered with
* XStream.PRIORITY_NORMAL. Converters of same priority will be used in the reverse sequence
* they have been registered. The default converter, i.e. the converter which will be used if
* no other registered converter is suitable, can be registered with priority
* XStream.PRIORITY_VERY_LOW. XStream uses by default the
* {@link com.thoughtworks.xstream.converters.reflection.ReflectionConverter} as the fallback
* converter.
*
*
*
*
* Example
*
*
* xstream.registerConverter(new CustomDefaultConverter(), XStream.PRIORITY_VERY_LOW);
*
*
*
*
*
* Object graphs
*
*
* XStream has support for object graphs; a deserialized object graph will keep references intact,
* including circular references.
*
*
*
* XStream can signify references in XML using either relative/absolute XPath or IDs. The mode can be changed using
* setMode():
*
*
*
*
* xstream.setMode(XStream.XPATH_RELATIVE_REFERENCES);(Default) Uses XPath relative references to signify duplicate references. This produces XML
* with the least clutter.
*
*
* xstream.setMode(XStream.XPATH_ABSOLUTE_REFERENCES);Uses XPath absolute references to signify duplicate
* references. This produces XML with the least clutter.
*
*
* xstream.setMode(XStream.SINGLE_NODE_XPATH_RELATIVE_REFERENCES);Uses XPath relative references to signify duplicate references. The XPath expression ensures that
* a single node only is selected always.
*
*
* xstream.setMode(XStream.SINGLE_NODE_XPATH_ABSOLUTE_REFERENCES);Uses XPath absolute references to signify duplicate references. The XPath expression ensures that
* a single node only is selected always.
*
*
* xstream.setMode(XStream.ID_REFERENCES);Uses ID references to signify duplicate references. In some scenarios, such as when using
* hand-written XML, this is easier to work with.
*
*
* xstream.setMode(XStream.NO_REFERENCES);This disables object graph support and treats the object structure like a tree. Duplicate
* references are treated as two separate objects and circular references cause an exception. This
* is slightly faster and uses less memory than the other two modes.
*
*
* Thread safety
*
* The XStream instance is thread-safe. That is, once the XStream instance has been created and
* configured, it may be shared across multiple threads allowing objects to be
* serialized/deserialized concurrently. Note, that this only applies if annotations are not
* auto-detected on -the-fly.
*
* Implicit collections
*
*
* To avoid the need for special tags for collections, you can define implicit collections using one
* of the addImplicitCollection methods.
*
*
* @author Joe Walnes
* @author Jörg Schaible
* @author Mauro Talevi
* @author Guilherme Silveira
*/
public class XStream {
// CAUTION: The sequence of the fields is intentional for an optimal XML output of a
// self-serialization!
private ReflectionProvider reflectionProvider;
private HierarchicalStreamDriver hierarchicalStreamDriver;
private ClassLoaderReference classLoaderReference;
private MarshallingStrategy marshallingStrategy;
private ConverterLookup converterLookup;
private ConverterRegistry converterRegistry;
private Mapper mapper;
private PackageAliasingMapper packageAliasingMapper;
private ClassAliasingMapper classAliasingMapper;
private FieldAliasingMapper fieldAliasingMapper;
private AttributeAliasingMapper attributeAliasingMapper;
private SystemAttributeAliasingMapper systemAttributeAliasingMapper;
private AttributeMapper attributeMapper;
private DefaultImplementationsMapper defaultImplementationsMapper;
private ImmutableTypesMapper immutableTypesMapper;
private ImplicitCollectionMapper implicitCollectionMapper;
private LocalConversionMapper localConversionMapper;
private AnnotationConfiguration annotationConfiguration;
private transient JVM jvm = new JVM();
public static final int NO_REFERENCES = 1001;
public static final int ID_REFERENCES = 1002;
public static final int XPATH_RELATIVE_REFERENCES = 1003;
public static final int XPATH_ABSOLUTE_REFERENCES = 1004;
public static final int SINGLE_NODE_XPATH_RELATIVE_REFERENCES = 1005;
public static final int SINGLE_NODE_XPATH_ABSOLUTE_REFERENCES = 1006;
public static final int PRIORITY_VERY_HIGH = 10000;
public static final int PRIORITY_NORMAL = 0;
public static final int PRIORITY_LOW = -10;
public static final int PRIORITY_VERY_LOW = -20;
private static final String ANNOTATION_MAPPER_TYPE = "com.thoughtworks.xstream.mapper.AnnotationMapper";
/**
* Constructs a default XStream. The instance will use the {@link XppDriver} as default and
* tries to determine the best match for the {@link ReflectionProvider} on its own.
*
* @throws InitializationException in case of an initialization problem
*/
public XStream() {
this(null, (Mapper)null, new XppDriver());
}
/**
* Constructs an XStream with a special {@link ReflectionProvider}. The instance will use
* the {@link XppDriver} as default.
*
* @throws InitializationException in case of an initialization problem
*/
public XStream(ReflectionProvider reflectionProvider) {
this(reflectionProvider, (Mapper)null, new XppDriver());
}
/**
* Constructs an XStream with a special {@link HierarchicalStreamDriver}. The instance will
* tries to determine the best match for the {@link ReflectionProvider} on its own.
*
* @throws InitializationException in case of an initialization problem
*/
public XStream(HierarchicalStreamDriver hierarchicalStreamDriver) {
this(null, (Mapper)null, hierarchicalStreamDriver);
}
/**
* Constructs an XStream with a special {@link HierarchicalStreamDriver} and
* {@link ReflectionProvider}.
*
* @throws InitializationException in case of an initialization problem
*/
public XStream(
ReflectionProvider reflectionProvider, HierarchicalStreamDriver hierarchicalStreamDriver) {
this(reflectionProvider, (Mapper)null, hierarchicalStreamDriver);
}
/**
* Constructs an XStream with a special {@link HierarchicalStreamDriver} and
* {@link ReflectionProvider} and additionally with a prepared {@link Mapper}.
*
* @throws InitializationException in case of an initialization problem
* @deprecated As of 1.3, use
* {@link #XStream(ReflectionProvider, HierarchicalStreamDriver, ClassLoader, Mapper)}
* instead
*/
public XStream(
ReflectionProvider reflectionProvider, Mapper mapper, HierarchicalStreamDriver driver) {
this(
reflectionProvider, driver, new ClassLoaderReference(new CompositeClassLoader()),
mapper, new DefaultConverterLookup(), null);
}
/**
* Constructs an XStream with a special {@link HierarchicalStreamDriver} and
* {@link ReflectionProvider} and additionally with a prepared {@link ClassLoader} to use.
*
* @throws InitializationException in case of an initialization problem
* @since 1.3
*/
public XStream(
ReflectionProvider reflectionProvider, HierarchicalStreamDriver driver,
ClassLoader classLoader) {
this(reflectionProvider, driver, classLoader, null);
}
/**
* Constructs an XStream with a special {@link HierarchicalStreamDriver} and
* {@link ReflectionProvider} and additionally with a prepared {@link Mapper} and the
* {@link ClassLoader} in use.
*
* Note, if the class loader should be changed later again, you should provide a
* {@link ClassLoaderReference} as {@link ClassLoader} that is also use in the
* {@link Mapper} chain.
*
*
* @throws InitializationException in case of an initialization problem
* @since 1.3
*/
public XStream(
ReflectionProvider reflectionProvider, HierarchicalStreamDriver driver,
ClassLoader classLoader, Mapper mapper) {
this(
reflectionProvider, driver, classLoader, mapper, new DefaultConverterLookup(), null);
}
/**
* Constructs an XStream with a special {@link HierarchicalStreamDriver},
* {@link ReflectionProvider}, a prepared {@link Mapper} and the {@link ClassLoader} in use
* and an own {@link ConverterRegistry}.
*
* Note, if the class loader should be changed later again, you should provide a
* {@link ClassLoaderReference} as {@link ClassLoader} that is also use in the
* {@link Mapper} chain.
*
*
* @throws InitializationException in case of an initialization problem
* @since 1.3
*/
public XStream(
ReflectionProvider reflectionProvider, HierarchicalStreamDriver driver,
ClassLoader classLoader, Mapper mapper, ConverterLookup converterLookup,
ConverterRegistry converterRegistry) {
jvm = new JVM();
if (reflectionProvider == null) {
reflectionProvider = jvm.bestReflectionProvider();
}
this.reflectionProvider = reflectionProvider;
this.hierarchicalStreamDriver = driver;
this.classLoaderReference = classLoader instanceof ClassLoaderReference
? (ClassLoaderReference)classLoader
: new ClassLoaderReference(classLoader);
this.converterLookup = converterLookup;
this.converterRegistry = converterRegistry != null
? converterRegistry
: (converterLookup instanceof ConverterRegistry
? (ConverterRegistry)converterLookup
: null);
this.mapper = mapper == null ? buildMapper() : mapper;
setupMappers();
setupAliases();
setupDefaultImplementations();
setupConverters();
setupImmutableTypes();
setMode(XPATH_RELATIVE_REFERENCES);
}
private Mapper buildMapper() {
Mapper mapper = new DefaultMapper(classLoaderReference);
if (useXStream11XmlFriendlyMapper()) {
mapper = new XStream11XmlFriendlyMapper(mapper);
}
mapper = new DynamicProxyMapper(mapper);
mapper = new PackageAliasingMapper(mapper);
mapper = new ClassAliasingMapper(mapper);
mapper = new FieldAliasingMapper(mapper);
mapper = new AttributeAliasingMapper(mapper);
mapper = new SystemAttributeAliasingMapper(mapper);
mapper = new ImplicitCollectionMapper(mapper);
mapper = new OuterClassMapper(mapper);
mapper = new ArrayMapper(mapper);
mapper = new DefaultImplementationsMapper(mapper);
mapper = new AttributeMapper(mapper, converterLookup, reflectionProvider);
if (JVM.is15()) {
mapper = buildMapperDynamically(
"com.thoughtworks.xstream.mapper.EnumMapper", new Class[]{Mapper.class},
new Object[]{mapper});
}
mapper = new LocalConversionMapper(mapper);
mapper = new ImmutableTypesMapper(mapper);
if (JVM.is15()) {
mapper = buildMapperDynamically(ANNOTATION_MAPPER_TYPE, new Class[]{
Mapper.class, ConverterRegistry.class, ConverterLookup.class,
ClassLoader.class, ReflectionProvider.class, JVM.class}, new Object[]{
mapper, converterLookup, converterLookup, classLoaderReference,
reflectionProvider, jvm});
}
mapper = wrapMapper((MapperWrapper)mapper);
mapper = new CachingMapper(mapper);
return mapper;
}
private Mapper buildMapperDynamically(String className, Class[] constructorParamTypes,
Object[] constructorParamValues) {
try {
Class type = Class.forName(className, false, classLoaderReference.getReference());
Constructor constructor = type.getConstructor(constructorParamTypes);
return (Mapper)constructor.newInstance(constructorParamValues);
} catch (Exception e) {
throw new com.thoughtworks.xstream.InitializationException(
"Could not instantiate mapper : " + className, e);
}
}
protected MapperWrapper wrapMapper(MapperWrapper next) {
return next;
}
protected boolean useXStream11XmlFriendlyMapper() {
return false;
}
private void setupMappers() {
packageAliasingMapper = (PackageAliasingMapper)this.mapper
.lookupMapperOfType(PackageAliasingMapper.class);
classAliasingMapper = (ClassAliasingMapper)this.mapper
.lookupMapperOfType(ClassAliasingMapper.class);
fieldAliasingMapper = (FieldAliasingMapper)this.mapper
.lookupMapperOfType(FieldAliasingMapper.class);
attributeMapper = (AttributeMapper)this.mapper
.lookupMapperOfType(AttributeMapper.class);
attributeAliasingMapper = (AttributeAliasingMapper)this.mapper
.lookupMapperOfType(AttributeAliasingMapper.class);
systemAttributeAliasingMapper = (SystemAttributeAliasingMapper)this.mapper
.lookupMapperOfType(SystemAttributeAliasingMapper.class);
implicitCollectionMapper = (ImplicitCollectionMapper)this.mapper
.lookupMapperOfType(ImplicitCollectionMapper.class);
defaultImplementationsMapper = (DefaultImplementationsMapper)this.mapper
.lookupMapperOfType(DefaultImplementationsMapper.class);
immutableTypesMapper = (ImmutableTypesMapper)this.mapper
.lookupMapperOfType(ImmutableTypesMapper.class);
localConversionMapper = (LocalConversionMapper)this.mapper
.lookupMapperOfType(LocalConversionMapper.class);
annotationConfiguration = (AnnotationConfiguration)this.mapper
.lookupMapperOfType(AnnotationConfiguration.class);
}
protected void setupAliases() {
if (classAliasingMapper == null) {
return;
}
alias("null", Mapper.Null.class);
alias("int", Integer.class);
alias("float", Float.class);
alias("double", Double.class);
alias("long", Long.class);
alias("short", Short.class);
alias("char", Character.class);
alias("byte", Byte.class);
alias("boolean", Boolean.class);
alias("number", Number.class);
alias("object", Object.class);
alias("big-int", BigInteger.class);
alias("big-decimal", BigDecimal.class);
alias("string-buffer", StringBuffer.class);
alias("string", String.class);
alias("java-class", Class.class);
alias("method", Method.class);
alias("constructor", Constructor.class);
alias("field", Field.class);
alias("date", Date.class);
alias("uri", URI.class);
alias("url", URL.class);
alias("bit-set", BitSet.class);
alias("map", Map.class);
alias("entry", Map.Entry.class);
alias("properties", Properties.class);
alias("list", List.class);
alias("set", Set.class);
alias("sorted-set", SortedSet.class);
alias("linked-list", LinkedList.class);
alias("vector", Vector.class);
alias("tree-map", TreeMap.class);
alias("tree-set", TreeSet.class);
alias("hashtable", Hashtable.class);
alias("empty-list", Collections.EMPTY_LIST.getClass());
alias("empty-map", Collections.EMPTY_MAP.getClass());
alias("empty-set", Collections.EMPTY_SET.getClass());
alias("singleton-list", Collections.singletonList(this).getClass());
alias("singleton-map", Collections.singletonMap(this, null).getClass());
alias("singleton-set", Collections.singleton(this).getClass());
if (jvm.supportsAWT()) {
// Instantiating these two classes starts the AWT system, which is undesirable.
// Calling loadClass ensures a reference to the class is found but they are not
// instantiated.
alias("awt-color", jvm.loadClass("java.awt.Color"));
alias("awt-font", jvm.loadClass("java.awt.Font"));
alias("awt-text-attribute", jvm.loadClass("java.awt.font.TextAttribute"));
}
if (jvm.supportsSQL()) {
alias("sql-timestamp", jvm.loadClass("java.sql.Timestamp"));
alias("sql-time", jvm.loadClass("java.sql.Time"));
alias("sql-date", jvm.loadClass("java.sql.Date"));
}
alias("file", File.class);
alias("locale", Locale.class);
alias("gregorian-calendar", Calendar.class);
if (JVM.is14()) {
aliasDynamically("auth-subject", "javax.security.auth.Subject");
alias("linked-hash-map", jvm.loadClass("java.util.LinkedHashMap"));
alias("linked-hash-set", jvm.loadClass("java.util.LinkedHashSet"));
alias("trace", jvm.loadClass("java.lang.StackTraceElement"));
alias("currency", jvm.loadClass("java.util.Currency"));
aliasType("charset", jvm.loadClass("java.nio.charset.Charset"));
}
if (JVM.is15()) {
aliasDynamically("duration", "javax.xml.datatype.Duration");
alias("enum-set", jvm.loadClass("java.util.EnumSet"));
alias("enum-map", jvm.loadClass("java.util.EnumMap"));
alias("string-builder", jvm.loadClass("java.lang.StringBuilder"));
alias("uuid", jvm.loadClass("java.util.UUID"));
}
}
private void aliasDynamically(String alias, String className) {
Class type = jvm.loadClass(className);
if (type != null) {
alias(alias, type);
}
}
protected void setupDefaultImplementations() {
if (defaultImplementationsMapper == null) {
return;
}
addDefaultImplementation(HashMap.class, Map.class);
addDefaultImplementation(ArrayList.class, List.class);
addDefaultImplementation(HashSet.class, Set.class);
addDefaultImplementation(TreeSet.class, SortedSet.class);
addDefaultImplementation(GregorianCalendar.class, Calendar.class);
}
protected void setupConverters() {
final ReflectionConverter reflectionConverter = new ReflectionConverter(
mapper, reflectionProvider);
registerConverter(reflectionConverter, PRIORITY_VERY_LOW);
registerConverter(
new SerializableConverter(mapper, reflectionProvider, classLoaderReference), PRIORITY_LOW);
registerConverter(new ExternalizableConverter(mapper, classLoaderReference), PRIORITY_LOW);
registerConverter(new NullConverter(), PRIORITY_VERY_HIGH);
registerConverter(new IntConverter(), PRIORITY_NORMAL);
registerConverter(new FloatConverter(), PRIORITY_NORMAL);
registerConverter(new DoubleConverter(), PRIORITY_NORMAL);
registerConverter(new LongConverter(), PRIORITY_NORMAL);
registerConverter(new ShortConverter(), PRIORITY_NORMAL);
registerConverter((Converter)new CharConverter(), PRIORITY_NORMAL);
registerConverter(new BooleanConverter(), PRIORITY_NORMAL);
registerConverter(new ByteConverter(), PRIORITY_NORMAL);
registerConverter(new StringConverter(), PRIORITY_NORMAL);
registerConverter(new StringBufferConverter(), PRIORITY_NORMAL);
registerConverter(new DateConverter(), PRIORITY_NORMAL);
registerConverter(new BitSetConverter(), PRIORITY_NORMAL);
registerConverter(new URIConverter(), PRIORITY_NORMAL);
registerConverter(new URLConverter(), PRIORITY_NORMAL);
registerConverter(new BigIntegerConverter(), PRIORITY_NORMAL);
registerConverter(new BigDecimalConverter(), PRIORITY_NORMAL);
registerConverter(new ArrayConverter(mapper), PRIORITY_NORMAL);
registerConverter(new CharArrayConverter(), PRIORITY_NORMAL);
registerConverter(new CollectionConverter(mapper), PRIORITY_NORMAL);
registerConverter(new MapConverter(mapper), PRIORITY_NORMAL);
registerConverter(new TreeMapConverter(mapper), PRIORITY_NORMAL);
registerConverter(new TreeSetConverter(mapper), PRIORITY_NORMAL);
registerConverter(new SingletonCollectionConverter(mapper), PRIORITY_NORMAL);
registerConverter(new SingletonMapConverter(mapper), PRIORITY_NORMAL);
registerConverter(new PropertiesConverter(), PRIORITY_NORMAL);
registerConverter((Converter)new EncodedByteArrayConverter(), PRIORITY_NORMAL);
registerConverter(new FileConverter(), PRIORITY_NORMAL);
if (jvm.supportsSQL()) {
registerConverter(new SqlTimestampConverter(), PRIORITY_NORMAL);
registerConverter(new SqlTimeConverter(), PRIORITY_NORMAL);
registerConverter(new SqlDateConverter(), PRIORITY_NORMAL);
}
registerConverter(
new DynamicProxyConverter(mapper, classLoaderReference), PRIORITY_NORMAL);
registerConverter(new JavaClassConverter(classLoaderReference), PRIORITY_NORMAL);
registerConverter(new JavaMethodConverter(classLoaderReference), PRIORITY_NORMAL);
registerConverter(new JavaFieldConverter(classLoaderReference), PRIORITY_NORMAL);
if (jvm.supportsAWT()) {
registerConverter(new FontConverter(), PRIORITY_NORMAL);
registerConverter(new ColorConverter(), PRIORITY_NORMAL);
registerConverter(new TextAttributeConverter(), PRIORITY_NORMAL);
}
if (jvm.supportsSwing()) {
registerConverter(
new LookAndFeelConverter(mapper, reflectionProvider), PRIORITY_NORMAL);
}
registerConverter(new LocaleConverter(), PRIORITY_NORMAL);
registerConverter(new GregorianCalendarConverter(), PRIORITY_NORMAL);
if (JVM.is14()) {
// late bound converters - allows XStream to be compiled on earlier JDKs
registerConverterDynamically(
"com.thoughtworks.xstream.converters.extended.SubjectConverter",
PRIORITY_NORMAL, new Class[]{Mapper.class}, new Object[]{mapper});
registerConverterDynamically(
"com.thoughtworks.xstream.converters.extended.ThrowableConverter",
PRIORITY_NORMAL, new Class[]{Converter.class},
new Object[]{reflectionConverter});
registerConverterDynamically(
"com.thoughtworks.xstream.converters.extended.StackTraceElementConverter",
PRIORITY_NORMAL, null, null);
registerConverterDynamically(
"com.thoughtworks.xstream.converters.extended.CurrencyConverter",
PRIORITY_NORMAL, null, null);
registerConverterDynamically(
"com.thoughtworks.xstream.converters.extended.RegexPatternConverter",
PRIORITY_NORMAL, new Class[]{Converter.class},
new Object[]{reflectionConverter});
registerConverterDynamically(
"com.thoughtworks.xstream.converters.extended.CharsetConverter",
PRIORITY_NORMAL, null, null);
}
if (JVM.is15()) {
// late bound converters - allows XStream to be compiled on earlier JDKs
if (jvm.loadClass("javax.xml.datatype.Duration") != null) {
registerConverterDynamically(
"com.thoughtworks.xstream.converters.extended.DurationConverter",
PRIORITY_NORMAL, null, null);
}
registerConverterDynamically(
"com.thoughtworks.xstream.converters.enums.EnumConverter", PRIORITY_NORMAL,
null, null);
registerConverterDynamically(
"com.thoughtworks.xstream.converters.enums.EnumSetConverter", PRIORITY_NORMAL,
new Class[]{Mapper.class}, new Object[]{mapper});
registerConverterDynamically(
"com.thoughtworks.xstream.converters.enums.EnumMapConverter", PRIORITY_NORMAL,
new Class[]{Mapper.class}, new Object[]{mapper});
registerConverterDynamically(
"com.thoughtworks.xstream.converters.basic.StringBuilderConverter",
PRIORITY_NORMAL, null, null);
registerConverterDynamically(
"com.thoughtworks.xstream.converters.basic.UUIDConverter", PRIORITY_NORMAL,
null, null);
}
registerConverter(
new SelfStreamingInstanceChecker(reflectionConverter, this), PRIORITY_NORMAL);
}
private void registerConverterDynamically(String className, int priority,
Class[] constructorParamTypes, Object[] constructorParamValues) {
try {
Class type = Class.forName(className, false, classLoaderReference.getReference());
Constructor constructor = type.getConstructor(constructorParamTypes);
Object instance = constructor.newInstance(constructorParamValues);
if (instance instanceof Converter) {
registerConverter((Converter)instance, priority);
} else if (instance instanceof SingleValueConverter) {
registerConverter((SingleValueConverter)instance, priority);
}
} catch (Exception e) {
throw new com.thoughtworks.xstream.InitializationException(
"Could not instantiate converter : " + className, e);
}
}
protected void setupImmutableTypes() {
if (immutableTypesMapper == null) {
return;
}
// primitives are always immutable
addImmutableType(boolean.class);
addImmutableType(Boolean.class);
addImmutableType(byte.class);
addImmutableType(Byte.class);
addImmutableType(char.class);
addImmutableType(Character.class);
addImmutableType(double.class);
addImmutableType(Double.class);
addImmutableType(float.class);
addImmutableType(Float.class);
addImmutableType(int.class);
addImmutableType(Integer.class);
addImmutableType(long.class);
addImmutableType(Long.class);
addImmutableType(short.class);
addImmutableType(Short.class);
// additional types
addImmutableType(Mapper.Null.class);
addImmutableType(BigDecimal.class);
addImmutableType(BigInteger.class);
addImmutableType(String.class);
addImmutableType(URI.class);
addImmutableType(URL.class);
addImmutableType(File.class);
addImmutableType(Class.class);
addImmutableType(Collections.EMPTY_LIST.getClass());
addImmutableType(Collections.EMPTY_SET.getClass());
addImmutableType(Collections.EMPTY_MAP.getClass());
if (jvm.supportsAWT()) {
addImmutableTypeDynamically("java.awt.font.TextAttribute");
}
if (JVM.is14()) {
// late bound types - allows XStream to be compiled on earlier JDKs
addImmutableTypeDynamically("java.nio.charset.Charset");
addImmutableTypeDynamically("java.util.Currency");
}
}
private void addImmutableTypeDynamically(String className) {
Class type = jvm.loadClass(className);
if (type != null) {
addImmutableType(type);
}
}
public void setMarshallingStrategy(MarshallingStrategy marshallingStrategy) {
this.marshallingStrategy = marshallingStrategy;
}
/**
* Serialize an object to a pretty-printed XML String.
*
* @throws XStreamException if the object cannot be serialized
*/
public String toXML(Object obj) {
Writer writer = new StringWriter();
toXML(obj, writer);
return writer.toString();
}
/**
* Serialize an object to the given Writer as pretty-printed XML. The Writer will be flushed
* afterwards and in case of an exception.
*
* @throws XStreamException if the object cannot be serialized
*/
public void toXML(Object obj, Writer out) {
HierarchicalStreamWriter writer = hierarchicalStreamDriver.createWriter(out);
try {
marshal(obj, writer);
} finally {
writer.flush();
}
}
/**
* Serialize an object to the given OutputStream as pretty-printed XML. The OutputStream
* will be flushed afterwards and in case of an exception.
*
* @throws XStreamException if the object cannot be serialized
*/
public void toXML(Object obj, OutputStream out) {
HierarchicalStreamWriter writer = hierarchicalStreamDriver.createWriter(out);
try {
marshal(obj, writer);
} finally {
writer.flush();
}
}
/**
* Serialize and object to a hierarchical data structure (such as XML).
*
* @throws XStreamException if the object cannot be serialized
*/
public void marshal(Object obj, HierarchicalStreamWriter writer) {
marshal(obj, writer, null);
}
/**
* Serialize and object to a hierarchical data structure (such as XML).
*
* @param dataHolder Extra data you can use to pass to your converters. Use this as you
* want. If not present, XStream shall create one lazily as needed.
* @throws XStreamException if the object cannot be serialized
*/
public void marshal(Object obj, HierarchicalStreamWriter writer, DataHolder dataHolder) {
marshallingStrategy.marshal(writer, obj, converterLookup, mapper, dataHolder);
}
/**
* Deserialize an object from an XML String.
*
* @throws XStreamException if the object cannot be deserialized
*/
public Object fromXML(String xml) {
return fromXML(new StringReader(xml));
}
/**
* Deserialize an object from an XML Reader.
*
* @throws XStreamException if the object cannot be deserialized
*/
public Object fromXML(Reader reader) {
return unmarshal(hierarchicalStreamDriver.createReader(reader), null);
}
/**
* Deserialize an object from an XML InputStream.
*
* @throws XStreamException if the object cannot be deserialized
*/
public Object fromXML(InputStream input) {
return unmarshal(hierarchicalStreamDriver.createReader(input), null);
}
/**
* Deserialize an object from a URL.
*
* Depending on the parser implementation, some might take the file path as SystemId to
* resolve additional references.
*
* @throws XStreamException if the object cannot be deserialized
* @since 1.4
*/
public Object fromXML(URL url) {
return unmarshal(hierarchicalStreamDriver.createReader(url), null);
}
/**
* Deserialize an object from a file.
*
* Depending on the parser implementation, some might take the file path as SystemId to
* resolve additional references.
*
* @throws XStreamException if the object cannot be deserialized
* @since 1.4
*/
public Object fromXML(File file) {
return unmarshal(hierarchicalStreamDriver.createReader(file), null);
}
/**
* Deserialize an object from an XML String, populating the fields of the given root object
* instead of instantiating a new one. Note, that this is a special use case! With the
* ReflectionConverter XStream will write directly into the raw memory area of the existing
* object. Use with care!
*
* @throws XStreamException if the object cannot be deserialized
*/
public Object fromXML(String xml, Object root) {
return fromXML(new StringReader(xml), root);
}
/**
* Deserialize an object from an XML Reader, populating the fields of the given root object
* instead of instantiating a new one. Note, that this is a special use case! With the
* ReflectionConverter XStream will write directly into the raw memory area of the existing
* object. Use with care!
*
* @throws XStreamException if the object cannot be deserialized
*/
public Object fromXML(Reader xml, Object root) {
return unmarshal(hierarchicalStreamDriver.createReader(xml), root);
}
/**
* Deserialize an object from a URL, populating the fields of the given root
* object instead of instantiating a new one. Note, that this is a special use case! With
* the ReflectionConverter XStream will write directly into the raw memory area of the
* existing object. Use with care!
*
* Depending on the parser implementation, some might take the file path as SystemId to
* resolve additional references.
*
* @throws XStreamException if the object cannot be deserialized
* @since 1.4
*/
public Object fromXML(URL url, Object root) {
return unmarshal(hierarchicalStreamDriver.createReader(url), root);
}
/**
* Deserialize an object from a file, populating the fields of the given root
* object instead of instantiating a new one. Note, that this is a special use case! With
* the ReflectionConverter XStream will write directly into the raw memory area of the
* existing object. Use with care!
*
* Depending on the parser implementation, some might take the file path as SystemId to
* resolve additional references.
*
* @throws XStreamException if the object cannot be deserialized
* @since 1.4
*/
public Object fromXML(File file, Object root) {
return unmarshal(hierarchicalStreamDriver.createReader(file), root);
}
/**
* Deserialize an object from an XML InputStream, populating the fields of the given root
* object instead of instantiating a new one. Note, that this is a special use case! With
* the ReflectionConverter XStream will write directly into the raw memory area of the
* existing object. Use with care!
*
* @throws XStreamException if the object cannot be deserialized
*/
public Object fromXML(InputStream input, Object root) {
return unmarshal(hierarchicalStreamDriver.createReader(input), root);
}
/**
* Deserialize an object from a hierarchical data structure (such as XML).
*
* @throws XStreamException if the object cannot be deserialized
*/
public Object unmarshal(HierarchicalStreamReader reader) {
return unmarshal(reader, null, null);
}
/**
* Deserialize an object from a hierarchical data structure (such as XML), populating the
* fields of the given root object instead of instantiating a new one. Note, that this is a
* special use case! With the ReflectionConverter XStream will write directly into the raw
* memory area of the existing object. Use with care!
*
* @throws XStreamException if the object cannot be deserialized
*/
public Object unmarshal(HierarchicalStreamReader reader, Object root) {
return unmarshal(reader, root, null);
}
/**
* Deserialize an object from a hierarchical data structure (such as XML).
*
* @param root If present, the passed in object will have its fields populated, as opposed
* to XStream creating a new instance. Note, that this is a special use case!
* With the ReflectionConverter XStream will write directly into the raw memory
* area of the existing object. Use with care!
* @param dataHolder Extra data you can use to pass to your converters. Use this as you
* want. If not present, XStream shall create one lazily as needed.
* @throws XStreamException if the object cannot be deserialized
*/
public Object unmarshal(HierarchicalStreamReader reader, Object root, DataHolder dataHolder) {
try {
return marshallingStrategy.unmarshal(
root, reader, dataHolder, converterLookup, mapper);
} catch (ConversionException e) {
Package pkg = getClass().getPackage();
e.add("version", pkg != null ? pkg.getImplementationVersion() : "not available");
throw e;
}
}
/**
* Alias a Class to a shorter name to be used in XML elements.
*
* @param name Short name
* @param type Type to be aliased
* @throws InitializationException if no {@link ClassAliasingMapper} is available
*/
public void alias(String name, Class type) {
if (classAliasingMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ ClassAliasingMapper.class.getName()
+ " available");
}
classAliasingMapper.addClassAlias(name, type);
}
/**
* Alias a type to a shorter name to be used in XML elements. Any class that is assignable
* to this type will be aliased to the same name.
*
* @param name Short name
* @param type Type to be aliased
* @since 1.2
* @throws InitializationException if no {@link ClassAliasingMapper} is available
*/
public void aliasType(String name, Class type) {
if (classAliasingMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ ClassAliasingMapper.class.getName()
+ " available");
}
classAliasingMapper.addTypeAlias(name, type);
}
/**
* Alias a Class to a shorter name to be used in XML elements.
*
* @param name Short name
* @param type Type to be aliased
* @param defaultImplementation Default implementation of type to use if no other specified.
* @throws InitializationException if no {@link DefaultImplementationsMapper} or no
* {@link ClassAliasingMapper} is available
*/
public void alias(String name, Class type, Class defaultImplementation) {
alias(name, type);
addDefaultImplementation(defaultImplementation, type);
}
/**
* Alias a package to a shorter name to be used in XML elements.
*
* @param name Short name
* @param pkgName package to be aliased
* @throws InitializationException if no {@link DefaultImplementationsMapper} or no
* {@link PackageAliasingMapper} is available
* @since 1.3.1
*/
public void aliasPackage(String name, String pkgName) {
if (packageAliasingMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ PackageAliasingMapper.class.getName()
+ " available");
}
packageAliasingMapper.addPackageAlias(name, pkgName);
}
/**
* Create an alias for a field name.
*
* @param alias the alias itself
* @param definedIn the type that declares the field
* @param fieldName the name of the field
* @throws InitializationException if no {@link FieldAliasingMapper} is available
*/
public void aliasField(String alias, Class definedIn, String fieldName) {
if (fieldAliasingMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ FieldAliasingMapper.class.getName()
+ " available");
}
fieldAliasingMapper.addFieldAlias(alias, definedIn, fieldName);
}
/**
* Create an alias for an attribute
*
* @param alias the alias itself
* @param attributeName the name of the attribute
* @throws InitializationException if no {@link AttributeAliasingMapper} is available
*/
public void aliasAttribute(String alias, String attributeName) {
if (attributeAliasingMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ AttributeAliasingMapper.class.getName()
+ " available");
}
attributeAliasingMapper.addAliasFor(attributeName, alias);
}
/**
* Create an alias for a system attribute. XStream will not write a system attribute if its
* alias is set to null. However, this is not reversible, i.e. deserialization
* of the result is likely to fail afterwards and will not produce an object equal to the
* originally written one.
*
* @param alias the alias itself (may be null)
* @param systemAttributeName the name of the system attribute
* @throws InitializationException if no {@link SystemAttributeAliasingMapper} is available
* @since 1.3.1
*/
public void aliasSystemAttribute(String alias, String systemAttributeName) {
if (systemAttributeAliasingMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ SystemAttributeAliasingMapper.class.getName()
+ " available");
}
systemAttributeAliasingMapper.addAliasFor(systemAttributeName, alias);
}
/**
* Create an alias for an attribute.
*
* @param definedIn the type where the attribute is defined
* @param attributeName the name of the attribute
* @param alias the alias itself
* @throws InitializationException if no {@link AttributeAliasingMapper} is available
* @since 1.2.2
*/
public void aliasAttribute(Class definedIn, String attributeName, String alias) {
aliasField(alias, definedIn, attributeName);
useAttributeFor(definedIn, attributeName);
}
/**
* Use an attribute for a field or a specific type.
*
* @param fieldName the name of the field
* @param type the Class of the type to be rendered as XML attribute
* @throws InitializationException if no {@link AttributeMapper} is available
* @since 1.2
*/
public void useAttributeFor(String fieldName, Class type) {
if (attributeMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ AttributeMapper.class.getName()
+ " available");
}
attributeMapper.addAttributeFor(fieldName, type);
}
/**
* Use an attribute for a field declared in a specific type.
*
* @param fieldName the name of the field
* @param definedIn the Class containing such field
* @throws InitializationException if no {@link AttributeMapper} is available
* @since 1.2.2
*/
public void useAttributeFor(Class definedIn, String fieldName) {
if (attributeMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ AttributeMapper.class.getName()
+ " available");
}
attributeMapper.addAttributeFor(definedIn, fieldName);
}
/**
* Use an attribute for an arbitrary type.
*
* @param type the Class of the type to be rendered as XML attribute
* @throws InitializationException if no {@link AttributeMapper} is available
* @since 1.2
*/
public void useAttributeFor(Class type) {
if (attributeMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ AttributeMapper.class.getName()
+ " available");
}
attributeMapper.addAttributeFor(type);
}
/**
* Associate a default implementation of a class with an object. Whenever XStream encounters
* an instance of this type, it will use the default implementation instead. For example,
* java.util.ArrayList is the default implementation of java.util.List.
*
* @param defaultImplementation
* @param ofType
* @throws InitializationException if no {@link DefaultImplementationsMapper} is available
*/
public void addDefaultImplementation(Class defaultImplementation, Class ofType) {
if (defaultImplementationsMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ DefaultImplementationsMapper.class.getName()
+ " available");
}
defaultImplementationsMapper.addDefaultImplementation(defaultImplementation, ofType);
}
/**
* Add immutable types. The value of the instances of these types will always be written
* into the stream even if they appear multiple times.
*
* @throws InitializationException if no {@link ImmutableTypesMapper} is available
*/
public void addImmutableType(Class type) {
if (immutableTypesMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ ImmutableTypesMapper.class.getName()
+ " available");
}
immutableTypesMapper.addImmutableType(type);
}
public void registerConverter(Converter converter) {
registerConverter(converter, PRIORITY_NORMAL);
}
public void registerConverter(Converter converter, int priority) {
if (converterRegistry != null) {
converterRegistry.registerConverter(converter, priority);
}
}
public void registerConverter(SingleValueConverter converter) {
registerConverter(converter, PRIORITY_NORMAL);
}
public void registerConverter(SingleValueConverter converter, int priority) {
if (converterRegistry != null) {
converterRegistry.registerConverter(
new SingleValueConverterWrapper(converter), priority);
}
}
/**
* Register a local {@link Converter} for a field.
*
* @param definedIn the class type the field is defined in
* @param fieldName the field name
* @param converter the converter to use
* @since 1.3
*/
public void registerLocalConverter(Class definedIn, String fieldName, Converter converter) {
if (localConversionMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ LocalConversionMapper.class.getName()
+ " available");
}
localConversionMapper.registerLocalConverter(definedIn, fieldName, converter);
}
/**
* Register a local {@link SingleValueConverter} for a field.
*
* @param definedIn the class type the field is defined in
* @param fieldName the field name
* @param converter the converter to use
* @since 1.3
*/
public void registerLocalConverter(Class definedIn, String fieldName,
SingleValueConverter converter) {
registerLocalConverter(
definedIn, fieldName, (Converter)new SingleValueConverterWrapper(converter));
}
/**
* Retrieve the {@link Mapper}. This is by default a chain of {@link MapperWrapper
* MapperWrappers}.
*
* @return the mapper
* @since 1.2
*/
public Mapper getMapper() {
return mapper;
}
/**
* Retrieve the {@link ReflectionProvider} in use.
*
* @return the mapper
* @since 1.2.1
*/
public ReflectionProvider getReflectionProvider() {
return reflectionProvider;
}
public ConverterLookup getConverterLookup() {
return converterLookup;
}
/**
* Change mode for dealing with duplicate references. Valid values are
* XPATH_ABSOLUTE_REFERENCES, XPATH_RELATIVE_REFERENCES,
* XStream.ID_REFERENCES and XStream.NO_REFERENCES.
*
* @throws IllegalArgumentException if the mode is not one of the declared types
* @see #XPATH_ABSOLUTE_REFERENCES
* @see #XPATH_RELATIVE_REFERENCES
* @see #ID_REFERENCES
* @see #NO_REFERENCES
*/
public void setMode(int mode) {
switch (mode) {
case NO_REFERENCES:
setMarshallingStrategy(new TreeMarshallingStrategy());
break;
case ID_REFERENCES:
setMarshallingStrategy(new ReferenceByIdMarshallingStrategy());
break;
case XPATH_RELATIVE_REFERENCES:
setMarshallingStrategy(new ReferenceByXPathMarshallingStrategy(
ReferenceByXPathMarshallingStrategy.RELATIVE));
break;
case XPATH_ABSOLUTE_REFERENCES:
setMarshallingStrategy(new ReferenceByXPathMarshallingStrategy(
ReferenceByXPathMarshallingStrategy.ABSOLUTE));
break;
case SINGLE_NODE_XPATH_RELATIVE_REFERENCES:
setMarshallingStrategy(new ReferenceByXPathMarshallingStrategy(
ReferenceByXPathMarshallingStrategy.RELATIVE
| ReferenceByXPathMarshallingStrategy.SINGLE_NODE));
break;
case SINGLE_NODE_XPATH_ABSOLUTE_REFERENCES:
setMarshallingStrategy(new ReferenceByXPathMarshallingStrategy(
ReferenceByXPathMarshallingStrategy.ABSOLUTE
| ReferenceByXPathMarshallingStrategy.SINGLE_NODE));
break;
default:
throw new IllegalArgumentException("Unknown mode : " + mode);
}
}
/**
* Adds a default implicit collection which is used for any unmapped XML tag.
*
* @param ownerType class owning the implicit collection
* @param fieldName name of the field in the ownerType. This field must be a concrete
* collection type or matching the default implementation type of the collection
* type.
*/
public void addImplicitCollection(Class ownerType, String fieldName) {
addImplicitCollection(ownerType, fieldName, null, null);
}
/**
* Adds implicit collection which is used for all items of the given itemType.
*
* @param ownerType class owning the implicit collection
* @param fieldName name of the field in the ownerType. This field must be a concrete
* collection type or matching the default implementation type of the collection
* type.
* @param itemType type of the items to be part of this collection
* @throws InitializationException if no {@link ImplicitCollectionMapper} is available
*/
public void addImplicitCollection(Class ownerType, String fieldName, Class itemType) {
addImplicitCollection(ownerType, fieldName, null, itemType);
}
/**
* Adds implicit collection which is used for all items of the given element name defined by
* itemFieldName.
*
* @param ownerType class owning the implicit collection
* @param fieldName name of the field in the ownerType. This field must be a concrete
* collection type or matching the default implementation type of the collection
* type.
* @param itemFieldName element name of the implicit collection
* @param itemType item type to be aliases be the itemFieldName
* @throws InitializationException if no {@link ImplicitCollectionMapper} is available
*/
public void addImplicitCollection(Class ownerType, String fieldName, String itemFieldName,
Class itemType) {
addImplicitMap(ownerType, fieldName, itemFieldName, itemType, null);
}
/**
* Adds an implicit array.
*
* @param ownerType class owning the implicit array
* @param fieldName name of the array field
* @since 1.4
*/
public void addImplicitArray(Class ownerType, String fieldName) {
addImplicitCollection(ownerType, fieldName);
}
/**
* Adds an implicit array which is used for all items of the given itemType when the array
* type matches.
*
* @param ownerType class owning the implicit array
* @param fieldName name of the array field in the ownerType
* @param itemType type of the items to be part of this array
* @throws InitializationException if no {@link ImplicitCollectionMapper} is available or the
* array type does not match the itemType
* @since 1.4
*/
public void addImplicitArray(Class ownerType, String fieldName, Class itemType) {
addImplicitCollection(ownerType, fieldName, itemType);
}
/**
* Adds an implicit array which is used for all items of the given element name defined by
* itemName.
*
* @param ownerType class owning the implicit array
* @param fieldName name of the array field in the ownerType
* @param itemName alias name of the items
* @throws InitializationException if no {@link ImplicitCollectionMapper} is available
* @since 1.4
*/
public void addImplicitArray(Class ownerType, String fieldName, String itemName) {
addImplicitCollection(ownerType, fieldName, itemName, null);
}
/**
* Adds an implicit map.
*
* @param ownerType class owning the implicit map
* @param fieldName name of the field in the ownerType. This field must be a concrete
* map type or matching the default implementation type of the map
* type.
* @param itemType type of the items to be part of this map as value
* @param keyFieldName the name of the filed of the itemType that is used for the key in the map
* @since 1.4
*/
public void addImplicitMap(Class ownerType, String fieldName, Class itemType, String keyFieldName) {
addImplicitMap(ownerType, fieldName, null, itemType, keyFieldName);
}
/**
* Adds an implicit map.
*
* @param ownerType class owning the implicit map
* @param fieldName name of the field in the ownerType. This field must be a concrete
* map type or matching the default implementation type of the map
* type.
* @param itemType type of the items to be part of this map as value
* @param keyFieldName the name of the filed of the itemType that is used for the key in the map
* @since 1.4
*/
public void addImplicitMap(Class ownerType, String fieldName, String itemFieldName,
Class itemType, String keyFieldName) {
if (implicitCollectionMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ ImplicitCollectionMapper.class.getName()
+ " available");
}
implicitCollectionMapper.add(ownerType, fieldName, itemFieldName, itemType, keyFieldName);
}
/**
* Create a DataHolder that can be used to pass data to the converters. The DataHolder is
* provided with a call to {@link #marshal(Object, HierarchicalStreamWriter, DataHolder)} or
* {@link #unmarshal(HierarchicalStreamReader, Object, DataHolder)}.
*
* @return a new {@link DataHolder}
*/
public DataHolder newDataHolder() {
return new MapBackedDataHolder();
}
/**
* Creates an ObjectOutputStream that serializes a stream of objects to the writer using
* XStream.
*
* To change the name of the root element (from <object-stream>), use
* {@link #createObjectOutputStream(java.io.Writer, String)}.
*
*
* @see #createObjectOutputStream(com.thoughtworks.xstream.io.HierarchicalStreamWriter,
* String)
* @see #createObjectInputStream(com.thoughtworks.xstream.io.HierarchicalStreamReader)
* @since 1.0.3
*/
public ObjectOutputStream createObjectOutputStream(Writer writer) throws IOException {
return createObjectOutputStream(
hierarchicalStreamDriver.createWriter(writer), "object-stream");
}
/**
* Creates an ObjectOutputStream that serializes a stream of objects to the writer using
* XStream.
*
* To change the name of the root element (from <object-stream>), use
* {@link #createObjectOutputStream(java.io.Writer, String)}.
*
*
* @see #createObjectOutputStream(com.thoughtworks.xstream.io.HierarchicalStreamWriter,
* String)
* @see #createObjectInputStream(com.thoughtworks.xstream.io.HierarchicalStreamReader)
* @since 1.0.3
*/
public ObjectOutputStream createObjectOutputStream(HierarchicalStreamWriter writer)
throws IOException {
return createObjectOutputStream(writer, "object-stream");
}
/**
* Creates an ObjectOutputStream that serializes a stream of objects to the writer using
* XStream.
*
* @see #createObjectOutputStream(com.thoughtworks.xstream.io.HierarchicalStreamWriter,
* String)
* @see #createObjectInputStream(com.thoughtworks.xstream.io.HierarchicalStreamReader)
* @since 1.0.3
*/
public ObjectOutputStream createObjectOutputStream(Writer writer, String rootNodeName)
throws IOException {
return createObjectOutputStream(
hierarchicalStreamDriver.createWriter(writer), rootNodeName);
}
/**
* Creates an ObjectOutputStream that serializes a stream of objects to the OutputStream
* using XStream.
*
* To change the name of the root element (from <object-stream>), use
* {@link #createObjectOutputStream(java.io.Writer, String)}.
*
*
* @see #createObjectOutputStream(com.thoughtworks.xstream.io.HierarchicalStreamWriter,
* String)
* @see #createObjectInputStream(com.thoughtworks.xstream.io.HierarchicalStreamReader)
* @since 1.3
*/
public ObjectOutputStream createObjectOutputStream(OutputStream out) throws IOException {
return createObjectOutputStream(
hierarchicalStreamDriver.createWriter(out), "object-stream");
}
/**
* Creates an ObjectOutputStream that serializes a stream of objects to the OutputStream
* using XStream.
*
* @see #createObjectOutputStream(com.thoughtworks.xstream.io.HierarchicalStreamWriter,
* String)
* @see #createObjectInputStream(com.thoughtworks.xstream.io.HierarchicalStreamReader)
* @since 1.3
*/
public ObjectOutputStream createObjectOutputStream(OutputStream out, String rootNodeName)
throws IOException {
return createObjectOutputStream(
hierarchicalStreamDriver.createWriter(out), rootNodeName);
}
/**
* Creates an ObjectOutputStream that serializes a stream of objects to the writer using
* XStream.
*
* Because an ObjectOutputStream can contain multiple items and XML only allows a single
* root node, the stream must be written inside an enclosing node.
*
*
* It is necessary to call ObjectOutputStream.close() when done, otherwise the stream will
* be incomplete.
*
* Example
*
*
* ObjectOutputStream out = xstream.createObjectOutputStream(aWriter, "things");
* out.writeInt(123);
* out.writeObject("Hello");
* out.writeObject(someObject)
* out.close();
*
*
* @param writer The writer to serialize the objects to.
* @param rootNodeName The name of the root node enclosing the stream of objects.
* @see #createObjectInputStream(com.thoughtworks.xstream.io.HierarchicalStreamReader)
* @since 1.0.3
*/
public ObjectOutputStream createObjectOutputStream(final HierarchicalStreamWriter writer,
String rootNodeName) throws IOException {
final StatefulWriter statefulWriter = new StatefulWriter(writer);
statefulWriter.startNode(rootNodeName, null);
return new CustomObjectOutputStream(new CustomObjectOutputStream.StreamCallback() {
public void writeToStream(Object object) {
marshal(object, statefulWriter);
}
public void writeFieldsToStream(Map fields) throws NotActiveException {
throw new NotActiveException("not in call to writeObject");
}
public void defaultWriteObject() throws NotActiveException {
throw new NotActiveException("not in call to writeObject");
}
public void flush() {
statefulWriter.flush();
}
public void close() {
if (statefulWriter.state() != StatefulWriter.STATE_CLOSED) {
statefulWriter.endNode();
statefulWriter.close();
}
}
});
}
/**
* Creates an ObjectInputStream that deserializes a stream of objects from a reader using
* XStream.
*
* @see #createObjectInputStream(com.thoughtworks.xstream.io.HierarchicalStreamReader)
* @see #createObjectOutputStream(com.thoughtworks.xstream.io.HierarchicalStreamWriter,
* String)
* @since 1.0.3
*/
public ObjectInputStream createObjectInputStream(Reader xmlReader) throws IOException {
return createObjectInputStream(hierarchicalStreamDriver.createReader(xmlReader));
}
/**
* Creates an ObjectInputStream that deserializes a stream of objects from an InputStream
* using XStream.
*
* @see #createObjectInputStream(com.thoughtworks.xstream.io.HierarchicalStreamReader)
* @see #createObjectOutputStream(com.thoughtworks.xstream.io.HierarchicalStreamWriter,
* String)
* @since 1.3
*/
public ObjectInputStream createObjectInputStream(InputStream in) throws IOException {
return createObjectInputStream(hierarchicalStreamDriver.createReader(in));
}
/**
* Creates an ObjectInputStream that deserializes a stream of objects from a reader using
* XStream. Example
*
*
* ObjectInputStream in = xstream.createObjectOutputStream(aReader);
* int a = out.readInt();
* Object b = out.readObject();
* Object c = out.readObject();
*
*
* @see #createObjectOutputStream(com.thoughtworks.xstream.io.HierarchicalStreamWriter,
* String)
* @since 1.0.3
*/
public ObjectInputStream createObjectInputStream(final HierarchicalStreamReader reader)
throws IOException {
return new CustomObjectInputStream(new CustomObjectInputStream.StreamCallback() {
public Object readFromStream() throws EOFException {
if (!reader.hasMoreChildren()) {
throw new EOFException();
}
reader.moveDown();
Object result = unmarshal(reader);
reader.moveUp();
return result;
}
public Map readFieldsFromStream() throws IOException {
throw new NotActiveException("not in call to readObject");
}
public void defaultReadObject() throws NotActiveException {
throw new NotActiveException("not in call to readObject");
}
public void registerValidation(ObjectInputValidation validation, int priority)
throws NotActiveException {
throw new NotActiveException("stream inactive");
}
public void close() {
reader.close();
}
}, classLoaderReference);
}
/**
* Change the ClassLoader XStream uses to load classes. Creating an XStream instance it will
* register for all kind of classes and types of the current JDK, but not for any 3rd party
* type. To ensure that all other types are loaded with your class loader, you should call
* this method as early as possible - or consider to provide the class loader directly in
* the constructor.
*
* @since 1.1.1
*/
public void setClassLoader(ClassLoader classLoader) {
classLoaderReference.setReference(classLoader);
}
/**
* Retrieve the ClassLoader XStream uses to load classes.
*
* @since 1.1.1
*/
public ClassLoader getClassLoader() {
return classLoaderReference.getReference();
}
/**
* Prevents a field from being serialized. To omit a field you must always provide the
* declaring type and not necessarily the type that is converted.
*
* @since 1.1.3
* @throws InitializationException if no {@link FieldAliasingMapper} is available
*/
public void omitField(Class definedIn, String fieldName) {
if (fieldAliasingMapper == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ FieldAliasingMapper.class.getName()
+ " available");
}
fieldAliasingMapper.omitField(definedIn, fieldName);
}
/**
* Process the annotations of the given types and configure the XStream.
*
* @param types the types with XStream annotations
* @since 1.3
*/
public void processAnnotations(final Class[] types) {
if (annotationConfiguration == null) {
throw new com.thoughtworks.xstream.InitializationException("No "
+ ANNOTATION_MAPPER_TYPE
+ " available");
}
annotationConfiguration.processAnnotations(types);
}
/**
* Process the annotations of the given type and configure the XStream. A call of this
* method will automatically turn the auto-detection mode for annotations off.
*
* @param type the type with XStream annotations
* @since 1.3
*/
public void processAnnotations(final Class type) {
processAnnotations(new Class[]{type});
}
/**
* Set the auto-detection mode of the AnnotationMapper. Note that auto-detection implies
* that the XStream is configured while it is processing the XML steams. This is a potential
* concurrency problem. Also is it technically not possible to detect all class aliases at
* deserialization. You have been warned!
*
* @param mode true if annotations are auto-detected
* @since 1.3
*/
public void autodetectAnnotations(boolean mode) {
if (annotationConfiguration != null) {
annotationConfiguration.autodetectAnnotations(mode);
}
}
/**
* @deprecated As of 1.3, use {@link InitializationException} instead
*/
public static class InitializationException extends XStreamException {
/**
* @deprecated As of 1.3, use {@link InitializationException} instead
*/
public InitializationException(String message, Throwable cause) {
super(message, cause);
}
/**
* @deprecated As of 1.3, use {@link InitializationException} instead
*/
public InitializationException(String message) {
super(message);
}
}
private Object readResolve() {
jvm = new JVM();
return this;
}
}
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