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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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package com.sun.xml.internal.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.internal.FinalArrayList;
import com.sun.xml.internal.bind.Util;
import com.sun.xml.internal.bind.api.JAXBRIContext;
import com.sun.xml.internal.bind.api.TypeReference;
import com.sun.xml.internal.bind.v2.model.annotation.RuntimeAnnotationReader;
import com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl;
import com.sun.xml.internal.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.


Used to create JAXBContext objects for v1.0.1 and forward

Author:Kohsuke Kawaguchi
Since:2.0
/**
 * 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

/**
     * 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 disablesecurityProcessing = getPropertyValue(properties, JAXBRIContext.DISABLE_XML_SECURITY, Boolean.class);
        if (disablesecurityProcessing==null)
            disablesecurityProcessing = 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 supressAccessorWarnings = getPropertyValue(properties, JAXBRIContext.SUPRESS_ACCESSOR_WARNINGS, Boolean.class);
        if(supressAccessorWarnings==null)
            supressAccessorWarnings = false;

        Boolean improvedXsiTypeHandling = getPropertyValue(properties, JAXBRIContext.IMPROVED_XSI_TYPE_HANDLING, Boolean.class);
        if (improvedXsiTypeHandling == null) {
            String improvedXsiSystemProperty = Util.getSystemProperty(JAXBRIContext.IMPROVED_XSI_TYPE_HANDLING);
            if (improvedXsiSystemProperty == null) {
                improvedXsiTypeHandling = true;
            } else {
                improvedXsiTypeHandling = Boolean.valueOf(improvedXsiSystemProperty);
            }
        }

        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");
        }

        Boolean backupWithParentNamespace = getPropertyValue(properties, JAXBRIContext.BACKUP_WITH_PARENT_NAMESPACE, Boolean.class);

        RuntimeAnnotationReader ar = getPropertyValue(properties,JAXBRIContext.ANNOTATION_READER,RuntimeAnnotationReader.class);

        Collection<TypeReference> tr = getPropertyValue(properties, JAXBRIContext.TYPE_REFERENCES, Collection.class);
        if (tr == null) {
            tr = Collections.<TypeReference>emptyList();
        }

        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()));
        }

        JAXBContextImpl.JAXBContextBuilder builder = new JAXBContextImpl.JAXBContextBuilder();
        builder.setClasses(classes);
        builder.setTypeRefs(tr);
        builder.setSubclassReplacements(subclassReplacements);
        builder.setDefaultNsUri(defaultNsUri);
        builder.setC14NSupport(c14nSupport);
        builder.setAnnotationReader(ar);
        builder.setXmlAccessorFactorySupport(xmlAccessorFactorySupport);
        builder.setAllNillable(allNillable);
        builder.setRetainPropertyInfo(retainPropertyInfo);
        builder.setSupressAccessorWarnings(supressAccessorWarnings);
        builder.setImprovedXsiTypeHandling(improvedXsiTypeHandling);
        builder.setDisableSecurityProcessing(disablesecurityProcessing);
        builder.setBackupWithParentNamespace(backupWithParentNamespace);
        return builder.build();
    }

    
If a key is present in the map, remove the value and return it.

/**
     * 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);
    }

    
Params:
  • classes – 
  • typeRefs – 
  • subclassReplacements – 
  • defaultNsUri – 
  • c14nSupport – 
  • ar – 
  • xmlAccessorFactorySupport – 
  • allNillable – 
  • retainPropertyInfo – 
Throws:
Returns:
Deprecated:use createContext(Class[] classes, Map<String,Object> properties) method instead
/**
     *
     * @param classes
     * @param typeRefs
     * @param subclassReplacements
     * @param defaultNsUri
     * @param c14nSupport
     * @param ar
     * @param xmlAccessorFactorySupport
     * @param allNillable
     * @param retainPropertyInfo
     * @return
     * @throws JAXBException
     * @deprecated use {@code createContext(Class[] classes, Map<String,Object> properties)} method instead
     */
    @Deprecated
    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 {

        return createContext(classes, typeRefs, subclassReplacements,
                defaultNsUri, c14nSupport, ar, xmlAccessorFactorySupport,
                allNillable, retainPropertyInfo, false);
    }

    
Params:
  • classes – 
  • typeRefs – 
  • subclassReplacements – 
  • defaultNsUri – 
  • c14nSupport – 
  • ar – 
  • xmlAccessorFactorySupport – 
  • allNillable – 
  • retainPropertyInfo – 
  • improvedXsiTypeHandling – 
Throws:
Returns:
Deprecated:use createContext( Class[] classes, Map<String,Object> properties) method instead
/**
     *
     * @param classes
     * @param typeRefs
     * @param subclassReplacements
     * @param defaultNsUri
     * @param c14nSupport
     * @param ar
     * @param xmlAccessorFactorySupport
     * @param allNillable
     * @param retainPropertyInfo
     * @param improvedXsiTypeHandling
     * @return
     * @throws JAXBException
     * @deprecated use {@code createContext( Class[] classes, Map<String,Object> properties)} method instead
     */
    @Deprecated
    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, boolean improvedXsiTypeHandling) 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);
        builder.setImprovedXsiTypeHandling(improvedXsiTypeHandling);
        return builder.build();
    }

    
The API will invoke this method via reflection.

/**
     * 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

Params:
  • pkg – package name to search in
  • classLoader – ClassLoader to search in
Throws:
Returns:a List of Class objects to load, null if there weren't any
/**
     * 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";
}