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package com.sun.xml.bind.v2;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.logging.Level;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import com.sun.istack.FinalArrayList;
import com.sun.xml.bind.Util;
import com.sun.xml.bind.api.JAXBRIContext;
import com.sun.xml.bind.api.TypeReference;
import com.sun.xml.bind.v2.model.annotation.RuntimeAnnotationReader;
import com.sun.xml.bind.v2.runtime.JAXBContextImpl;
import com.sun.xml.bind.v2.util.TypeCast;
/**
* This class is responsible for producing RI JAXBContext objects. In
* the RI, this is the class that the javax.xml.bind.context.factory
* property will point to.
*
* <p>
* Used to create JAXBContext objects for v1.0.1 and forward
*
* @since 2.0
* @author Kohsuke Kawaguchi
*/
public class ContextFactory {
/**
* The API will invoke this method via reflection
*/
public static JAXBContext createContext( Class[] classes, Map<String,Object> properties ) throws JAXBException {
// fool-proof check, and copy the map to make it easier to find unrecognized properties.
if(properties==null)
properties = Collections.emptyMap();
else
properties = new HashMap<String,Object>(properties);
String defaultNsUri = getPropertyValue(properties,JAXBRIContext.DEFAULT_NAMESPACE_REMAP,String.class);
Boolean c14nSupport = getPropertyValue(properties,JAXBRIContext.CANONICALIZATION_SUPPORT,Boolean.class);
if(c14nSupport==null)
c14nSupport = false;
Boolean allNillable = getPropertyValue(properties,JAXBRIContext.TREAT_EVERYTHING_NILLABLE,Boolean.class);
if(allNillable==null)
allNillable = false;
Boolean retainPropertyInfo = getPropertyValue(properties, JAXBRIContext.RETAIN_REFERENCE_TO_INFO, Boolean.class);
if(retainPropertyInfo==null)
retainPropertyInfo = false;
Boolean xmlAccessorFactorySupport = getPropertyValue(properties,
JAXBRIContext.XMLACCESSORFACTORY_SUPPORT,Boolean.class);
if(xmlAccessorFactorySupport==null){
xmlAccessorFactorySupport = false;
Util.getClassLogger().log(Level.FINE, "Property " +
JAXBRIContext.XMLACCESSORFACTORY_SUPPORT +
"is not active. Using JAXB's implementation");
}
RuntimeAnnotationReader ar = getPropertyValue(properties,JAXBRIContext.ANNOTATION_READER,RuntimeAnnotationReader.class);
Map<Class,Class> subclassReplacements;
try {
subclassReplacements = TypeCast.checkedCast(
getPropertyValue(properties, JAXBRIContext.SUBCLASS_REPLACEMENTS, Map.class), Class.class, Class.class);
} catch (ClassCastException e) {
throw new JAXBException(Messages.INVALID_TYPE_IN_MAP.format(),e);
}
if(!properties.isEmpty()) {
throw new JAXBException(Messages.UNSUPPORTED_PROPERTY.format(properties.keySet().iterator().next()));
}
return createContext(classes,Collections.<TypeReference>emptyList(),
subclassReplacements,defaultNsUri,c14nSupport,ar,xmlAccessorFactorySupport,allNillable, retainPropertyInfo);
}
/**
* If a key is present in the map, remove the value and return it.
*/
private static <T> T getPropertyValue(Map<String, Object> properties, String keyName, Class<T> type ) throws JAXBException {
Object o = properties.get(keyName);
if(o==null) return null;
properties.remove(keyName);
if(!type.isInstance(o))
throw new JAXBException(Messages.INVALID_PROPERTY_VALUE.format(keyName,o));
else
return type.cast(o);
}
public static JAXBRIContext createContext( Class[] classes,
Collection<TypeReference> typeRefs, Map<Class,Class> subclassReplacements,
String defaultNsUri, boolean c14nSupport, RuntimeAnnotationReader ar,
boolean xmlAccessorFactorySupport, boolean allNillable, boolean retainPropertyInfo) throws JAXBException {
JAXBContextImpl.JAXBContextBuilder builder = new JAXBContextImpl.JAXBContextBuilder();
builder.setClasses(classes);
builder.setTypeRefs(typeRefs);
builder.setSubclassReplacements(subclassReplacements);
builder.setDefaultNsUri(defaultNsUri);
builder.setC14NSupport(c14nSupport);
builder.setAnnotationReader(ar);
builder.setXmlAccessorFactorySupport(xmlAccessorFactorySupport);
builder.setAllNillable(allNillable);
builder.setRetainPropertyInfo(retainPropertyInfo);
return builder.build();
}
/**
* The API will invoke this method via reflection.
*/
public static JAXBContext createContext( String contextPath,
ClassLoader classLoader, Map<String,Object> properties ) throws JAXBException {
FinalArrayList<Class> classes = new FinalArrayList<Class>();
StringTokenizer tokens = new StringTokenizer(contextPath,":");
List<Class> indexedClasses;
// at least on of these must be true per package
boolean foundObjectFactory;
boolean foundJaxbIndex;
while(tokens.hasMoreTokens()) {
foundObjectFactory = foundJaxbIndex = false;
String pkg = tokens.nextToken();
// look for ObjectFactory and load it
final Class<?> o;
try {
o = classLoader.loadClass(pkg+".ObjectFactory");
classes.add(o);
foundObjectFactory = true;
} catch (ClassNotFoundException e) {
// not necessarily an error
}
// look for jaxb.index and load the list of classes
try {
indexedClasses = loadIndexedClasses(pkg, classLoader);
} catch (IOException e) {
//TODO: think about this more
throw new JAXBException(e);
}
if(indexedClasses != null) {
classes.addAll(indexedClasses);
foundJaxbIndex = true;
}
if( !(foundObjectFactory || foundJaxbIndex) ) {
throw new JAXBException( Messages.BROKEN_CONTEXTPATH.format(pkg));
}
}
return createContext(classes.toArray(new Class[classes.size()]),properties);
}
/**
* Look for jaxb.index file in the specified package and load it's contents
*
* @param pkg package name to search in
* @param classLoader ClassLoader to search in
* @return a List of Class objects to load, null if there weren't any
* @throws IOException if there is an error reading the index file
* @throws JAXBException if there are any errors in the index file
*/
private static List<Class> loadIndexedClasses(String pkg, ClassLoader classLoader) throws IOException, JAXBException {
final String resource = pkg.replace('.', '/') + "/jaxb.index";
final InputStream resourceAsStream = classLoader.getResourceAsStream(resource);
if (resourceAsStream == null) {
return null;
}
BufferedReader in =
new BufferedReader(new InputStreamReader(resourceAsStream, "UTF-8"));
try {
FinalArrayList<Class> classes = new FinalArrayList<Class>();
String className = in.readLine();
while (className != null) {
className = className.trim();
if (className.startsWith("#") || (className.length() == 0)) {
className = in.readLine();
continue;
}
if (className.endsWith(".class")) {
throw new JAXBException(Messages.ILLEGAL_ENTRY.format(className));
}
try {
classes.add(classLoader.loadClass(pkg + '.' + className));
} catch (ClassNotFoundException e) {
throw new JAXBException(Messages.ERROR_LOADING_CLASS.format(className, resource),e);
}
className = in.readLine();
}
return classes;
} finally {
in.close();
}
}
public static final String USE_JAXB_PROPERTIES = "_useJAXBProperties";
}