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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.aegis.databinding;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.logging.Logger;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.w3c.dom.Node;
import org.apache.cxf.aegis.AegisContext;
import org.apache.cxf.aegis.DatabindingException;
import org.apache.cxf.aegis.type.AegisType;
import org.apache.cxf.aegis.type.TypeClassInfo;
import org.apache.cxf.aegis.type.TypeCreationOptions;
import org.apache.cxf.aegis.type.TypeCreator;
import org.apache.cxf.aegis.type.TypeMapping;
import org.apache.cxf.aegis.type.basic.ArrayType;
import org.apache.cxf.aegis.type.java5.AnnotationReader;
import org.apache.cxf.aegis.type.mtom.AbstractXOPType;
import org.apache.cxf.common.WSDLConstants;
import org.apache.cxf.common.classloader.ClassLoaderUtils;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.xmlschema.SchemaCollection;
import org.apache.cxf.common.xmlschema.XmlSchemaConstants;
import org.apache.cxf.common.xmlschema.XmlSchemaUtils;
import org.apache.cxf.databinding.AbstractDataBinding;
import org.apache.cxf.databinding.DataReader;
import org.apache.cxf.databinding.DataWriter;
import org.apache.cxf.frontend.MethodDispatcher;
import org.apache.cxf.frontend.SimpleMethodDispatcher;
import org.apache.cxf.service.Service;
import org.apache.cxf.service.model.AbstractMessageContainer;
import org.apache.cxf.service.model.FaultInfo;
import org.apache.cxf.service.model.MessagePartInfo;
import org.apache.cxf.service.model.OperationInfo;
import org.apache.cxf.service.model.SchemaInfo;
import org.apache.cxf.service.model.ServiceInfo;
import org.apache.ws.commons.schema.XmlSchema;
import org.apache.ws.commons.schema.XmlSchemaAnnotated;
import org.apache.ws.commons.schema.XmlSchemaException;
import org.apache.ws.commons.schema.XmlSchemaForm;
import org.apache.ws.commons.schema.utils.NamespaceMap;
/**
* CXF databinding object for Aegis. By default, this creates an AegisContext object. To customize the
* behavior of the binding, an application should create its own AegisContext object and pass it to
* {@link #setAegisContext(AegisContext)} before any call to {@link #initialize(Service)}. That does
* not require special arrangements; the service factories do not call {{@link #initialize(Service)} until
* after the application passes the data binding into the factory. This class adds root classes to the context
* based on the SEI and implementation.
*
* @see org.apache.cxf.aegis.AegisContext
*/
public class AegisDatabinding extends AbstractDataBinding {
protected static final int IN_PARAM = 0;
protected static final int OUT_PARAM = 1;
protected static final int FAULT_PARAM = 2;
private static final Logger LOG = LogUtils.getL7dLogger(AegisDatabinding.class);
private AegisContext aegisContext;
private Map part2Type;
private Service service;
private boolean isInitialized;
private Set overrideTypes;
private TypeCreationOptions configuration;
private boolean mtomUseXmime;
public AegisDatabinding() {
super();
part2Type = new HashMap();
}
public AegisDatabinding(AegisContext ctx) {
this();
aegisContext = ctx;
}
/**
* The Databinding API has initialize(Service). However, this object should be usable even if that API is
* never called.
*/
private void ensureInitialized() {
if (!isInitialized) {
if (aegisContext == null) {
aegisContext = new AegisContext();
if (overrideTypes != null) {
aegisContext.setRootClassNames(overrideTypes);
}
if (configuration != null) {
aegisContext.setTypeCreationOptions(configuration);
}
if (mtomEnabled) {
aegisContext.setMtomEnabled(true);
}
if (mtomUseXmime) {
aegisContext.setMtomUseXmime(true);
}
aegisContext.initialize();
}
isInitialized = true;
}
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("unchecked")
public DataReader createReader(Class cls) {
ensureInitialized();
if (cls.equals(XMLStreamReader.class)) {
return (DataReader)new XMLStreamDataReader(this, getBus());
} else if (cls.equals(Node.class)) {
return (DataReader)new ElementDataReader(this);
} else {
throw new UnsupportedOperationException();
}
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("unchecked")
public DataWriter createWriter(Class cls) {
ensureInitialized();
if (cls.equals(XMLStreamWriter.class)) {
return (DataWriter)new XMLStreamDataWriter(this, getBus());
} else if (cls.equals(Node.class)) {
return (DataWriter)new ElementDataWriter(this);
} else {
throw new UnsupportedOperationException();
}
}
/**
* {@inheritDoc}
*/
public Class[] getSupportedReaderFormats() {
return new Class[] {
XMLStreamReader.class, Node.class
};
}
/**
* {@inheritDoc}
*/
public Class[] getSupportedWriterFormats() {
return new Class[] {
XMLStreamWriter.class, Node.class
};
}
/**
* {@inheritDoc} Set up the data binding for a service.
*/
public void initialize(Service s) {
// We want to support some compatibility configuration properties.
if (aegisContext == null) {
aegisContext = new AegisContext();
Object val = s.get("mtom-enabled");
if ("true".equals(val) || Boolean.TRUE.equals(val) || mtomEnabled) {
setMtomEnabled(true);
aegisContext.setMtomEnabled(true);
}
if (mtomUseXmime) {
aegisContext.setMtomUseXmime(true);
}
Map, String> implMap = new HashMap, String>();
// now for a really annoying case, the .implementation objects.
for (String key : s.keySet()) {
if (key.endsWith(".implementation")) {
String className = key.substring(0, key.length() - ".implementation".length());
Class clazz = null;
try {
clazz = ClassLoaderUtils.loadClass(className, getClass());
} catch (ClassNotFoundException e) {
Message message = new Message("MAPPED_CLASS_NOT_FOUND", LOG, className, key);
LOG.warning(message.toString());
continue;
}
String implClassName = (String)s.get(key);
implMap.put(clazz, implClassName);
}
}
if (overrideTypes != null) {
aegisContext.setRootClassNames(overrideTypes);
}
if (configuration != null) {
aegisContext.setTypeCreationOptions(configuration);
}
if (implMap.size() > 0) {
aegisContext.setBeanImplementationMap(implMap);
}
}
aegisContext.setMappingNamespaceURI(s.getServiceInfos().get(0)
.getInterface().getName().getNamespaceURI());
aegisContext.initialize();
this.service = s;
s.getInInterceptors()
.add(new AegisSchemaValidationInInterceptor(getBus(), s.getServiceInfos().get(0)));
Set deps = new HashSet();
for (ServiceInfo info : s.getServiceInfos()) {
for (OperationInfo opInfo : info.getInterface().getOperations()) {
if (opInfo.isUnwrappedCapable()) {
initializeOperation(s, aegisContext.getTypeMapping(), opInfo.getUnwrappedOperation(),
deps);
} else {
initializeOperation(s, aegisContext.getTypeMapping(), opInfo, deps);
}
}
}
Collection additional = aegisContext.getRootTypes();
if (additional != null) {
for (AegisType t : additional) {
if (!deps.contains(t)) {
deps.add(t);
}
addDependencies(deps, t);
}
}
createSchemas(s, deps);
for (ServiceInfo info : s.getServiceInfos()) {
for (OperationInfo opInfo : info.getInterface().getOperations()) {
if (opInfo.isUnwrappedCapable()) {
initializeOperationTypes(info, opInfo.getUnwrappedOperation());
} else {
initializeOperationTypes(info, opInfo);
}
}
}
}
private void initializeOperation(Service s, TypeMapping serviceTM, OperationInfo opInfo,
Set deps) {
try {
initializeMessage(s, serviceTM, opInfo.getInput(), IN_PARAM, deps);
if (opInfo.hasOutput()) {
initializeMessage(s, serviceTM, opInfo.getOutput(), OUT_PARAM, deps);
}
for (FaultInfo info : opInfo.getFaults()) {
initializeMessage(s, serviceTM, info, FAULT_PARAM, deps);
}
} catch (DatabindingException e) {
e.prepend("Error initializing parameters for operation " + opInfo.getName());
throw e;
}
}
private void initializeOperationTypes(ServiceInfo s, OperationInfo opInfo) {
try {
initializeMessageTypes(s, opInfo.getInput(), IN_PARAM);
if (opInfo.hasOutput()) {
initializeMessageTypes(s, opInfo.getOutput(), OUT_PARAM);
}
for (FaultInfo info : opInfo.getFaults()) {
initializeMessageTypes(s, info, FAULT_PARAM);
}
} catch (DatabindingException e) {
e.prepend("Error initializing parameters for operation " + opInfo.getName());
throw e;
}
}
protected void initializeMessage(Service s, TypeMapping serviceTM, AbstractMessageContainer container,
int partType, Set deps) {
if (container == null) {
return;
}
for (Iterator itr = container.getMessageParts().iterator(); itr.hasNext();) {
MessagePartInfo part = (MessagePartInfo)itr.next();
AegisType type = getParameterType(s, serviceTM, part, partType);
if (part.getXmlSchema() == null) {
// schema hasn't been filled in yet
if (type.isAbstract()) {
part.setTypeQName(type.getSchemaType());
} else {
part.setElementQName(type.getSchemaType());
}
}
Annotation[] anns = part.getProperty("parameter.annotations", Annotation[].class);
long miValue = -1;
if (type.hasMinOccurs()) {
miValue = type.getMinOccurs();
}
Integer i = AnnotationReader.getMinOccurs(anns);
if (i != null) {
miValue = i;
}
if (miValue > 0) {
part.setProperty("minOccurs", Long.toString(miValue));
}
// The concept of type.isNillable is questionable: how are types nillable?
// However, this if at least allow .aegis.xml files to get control.
if (part.getProperty("nillable") == null) {
boolean isNil = type.isNillable();
Boolean b = AnnotationReader.isNillable(anns);
if (b != null || (miValue != 0 && isNil)) {
part.setProperty("nillable", b == null ? isNil : b);
}
/*
if (miValue == -1 && (b == null ? isNil : b)) {
part.setProperty("minOccurs", "1");
}
*/
}
if (type.hasMaxOccurs()) {
String moValue;
long mo = type.getMaxOccurs();
if (mo != Long.MAX_VALUE) {
moValue = Long.toString(mo);
part.setProperty("maxOccurs", moValue);
}
}
part2Type.put(part, type);
// QName elName = getSuggestedName(service, op, param)
deps.add(type);
type.getTypeMapping().register(type);
addDependencies(deps, type);
}
}
protected void initializeMessageTypes(ServiceInfo s, AbstractMessageContainer container, int partType) {
if (container == null) {
return;
}
SchemaCollection col = s.getXmlSchemaCollection();
for (Iterator itr = container.getMessageParts().iterator(); itr.hasNext();) {
MessagePartInfo part = (MessagePartInfo)itr.next();
if (part.getXmlSchema() == null) {
if (part.isElement()) {
XmlSchemaAnnotated tp = col.getElementByQName(part.getElementQName());
part.setXmlSchema(tp);
} else {
XmlSchemaAnnotated tp = col.getTypeByQName(part.getTypeQName());
part.setXmlSchema(tp);
}
}
}
}
private void addDependencies(Set deps, AegisType type) {
Set typeDeps = type.getDependencies();
if (typeDeps != null) {
for (AegisType t : typeDeps) {
if (!deps.contains(t)) {
deps.add(t);
addDependencies(deps, t);
}
}
}
}
private void createSchemas(Service s, Set deps) {
Map> tns2Type = new HashMap>();
for (AegisType t : deps) {
String ns = t.getSchemaType().getNamespaceURI();
Set types = tns2Type.get(ns);
if (types == null) {
types = new HashSet();
tns2Type.put(ns, types);
}
types.add(t);
}
for (ServiceInfo si : s.getServiceInfos()) {
SchemaCollection col = si.getXmlSchemaCollection();
if (col.getXmlSchemas().length > 1) {
// someone has already filled in the types
continue;
}
}
Map namespaceMap = getDeclaredNamespaceMappings();
for (ServiceInfo si : s.getServiceInfos()) {
// these two must be recalculated per-service-info!
boolean needXmimeSchema = false;
boolean needTypesSchema = false;
for (Map.Entry> entry : tns2Type.entrySet()) {
String schemaNamespaceUri = entry.getKey();
if (XmlSchemaConstants.XSD_NAMESPACE_URI.equals(schemaNamespaceUri)) {
continue;
}
if (AegisContext.UTILITY_TYPES_SCHEMA_NS.equals(schemaNamespaceUri)) {
continue; // we handle this separately.
}
if (AbstractXOPType.XML_MIME_NS.equals(schemaNamespaceUri)) {
continue; // similiarly.
}
SchemaInfo schemaInfo = si.addNewSchema(entry.getKey());
XmlSchema schema = schemaInfo.getSchema();
NamespaceMap xmlsNamespaceMap = new NamespaceMap();
// user-requested prefix mappings.
if (namespaceMap != null) {
for (Map.Entry e : namespaceMap.entrySet()) {
xmlsNamespaceMap.add(e.getValue(), e.getKey());
}
}
// tns: is conventional, and besides we have unit tests that are hardcoded to it.
if (!xmlsNamespaceMap.containsKey(WSDLConstants.CONVENTIONAL_TNS_PREFIX)
// if some wants something other than TNS, they get it.
&& !xmlsNamespaceMap.containsValue(entry.getKey())) {
xmlsNamespaceMap.add(WSDLConstants.CONVENTIONAL_TNS_PREFIX, entry.getKey());
}
// ditto for xsd: instead of just namespace= for the schema schema.
if (!xmlsNamespaceMap.containsKey("xsd")
&& !xmlsNamespaceMap.containsValue(XmlSchemaConstants.XSD_NAMESPACE_URI)) {
xmlsNamespaceMap.add("xsd", XmlSchemaConstants.XSD_NAMESPACE_URI);
}
schema.setNamespaceContext(xmlsNamespaceMap);
schema.setTargetNamespace(entry.getKey());
schema.setElementFormDefault(XmlSchemaForm.QUALIFIED);
schema.setAttributeFormDefault(XmlSchemaForm.QUALIFIED);
for (AegisType t : entry.getValue()) {
try {
t.writeSchema(schema);
} catch (XmlSchemaException ex) {
QName name = t.getSchemaType();
String expected = " Schema for namespace '" + name.getNamespaceURI()
+ "' already contains type '" + name.getLocalPart() + "'";
String message = ex.getMessage();
if (expected.equals(message)) {
continue;
} else {
throw ex;
}
}
}
if (schemaImportsXmime(schema)) {
needXmimeSchema = true;
}
if (AegisContext.schemaImportsUtilityTypes(schema)) {
needTypesSchema = true;
}
}
if (needXmimeSchema) {
XmlSchema schema = aegisContext.addXmimeSchemaDocument(si.getXmlSchemaCollection()
.getXmlSchemaCollection());
SchemaInfo schemaInfo = new SchemaInfo(schema.getTargetNamespace());
schemaInfo.setSchema(schema);
si.addSchema(schemaInfo);
}
if (needTypesSchema) {
XmlSchema schema = aegisContext.addTypesSchemaDocument(si.getXmlSchemaCollection()
.getXmlSchemaCollection());
SchemaInfo schemaInfo = new SchemaInfo(schema.getTargetNamespace());
schemaInfo.setSchema(schema);
si.addSchema(schemaInfo);
}
// it's quite likely that the code in Aegis missed at least one ...
si.getXmlSchemaCollection().addCrossImports();
}
}
private boolean schemaImportsXmime(XmlSchema schema) {
return XmlSchemaUtils.schemaImportsNamespace(schema, AbstractXOPType.XML_MIME_NS);
}
public QName getSuggestedName(Service s, TypeMapping tm, OperationInfo op, int param) {
Method m = getMethod(s, op);
if (m == null) {
return null;
}
QName name = tm.getTypeCreator().getElementName(m, param);
// No mapped name was specified, so if its a complex type use that name
// instead
if (name == null) {
AegisType type = tm.getTypeCreator().createType(m, param);
if (type.isComplex() && !type.isAbstract()) {
name = type.getSchemaType();
}
}
return name;
}
private AegisType getParameterType(Service s, TypeMapping tm, MessagePartInfo param, int paramtype) {
AegisType type = tm.getType(param.getTypeQName());
if (type != null && type.getTypeClass() != param.getTypeClass()) {
type = null;
}
int offset = 0;
if (paramtype == OUT_PARAM) {
offset = 1;
}
TypeCreator typeCreator = tm.getTypeCreator();
if (type == null) {
// Current author doesn't know how type can be non-null here.
boolean usingComponentType = false;
OperationInfo op = param.getMessageInfo().getOperation();
Method m = getMethod(s, op);
TypeClassInfo info;
if (paramtype != FAULT_PARAM && m != null) {
info = typeCreator.createClassInfo(m, param.getIndex() - offset);
} else {
info = typeCreator.createBasicClassInfo(param.getTypeClass());
}
Boolean nillable = info.getNillable();
/*
* Note that, for types from the mapping, the minOccurs, maxOccurs, and nillable from the 'info'
* will be ignored by createTypeForClass below. So we need to override.
*/
type = typeCreator.createTypeForClass(info);
// if not writing outer, we don't need anything special.
if (param.getMessageInfo().getOperation().isUnwrapped() && param.getTypeClass().isArray()
&& type.isWriteOuter()) {
/*
* The service factory expects arrays going into the wrapper to be mapped to the array
* component type and will then add min=0/max=unbounded. That doesn't work for Aegis where we
* already created a wrapper ArrayType so we'll let it know we want the default.
*/
param.setProperty("minOccurs", "1");
param.setProperty("maxOccurs", "1");
if (nillable == null) {
nillable = Boolean.TRUE;
}
param.setProperty("nillable", nillable);
} else {
if (nillable != null) {
param.setProperty("nillable", nillable);
}
/*
* TypeClassInfo uses -1 to mean 'not specified'
*/
if (info.getMinOccurs() != -1) {
param.setProperty("minOccurs", Long.toString(info.getMinOccurs()));
}
if (info.getMaxOccurs() != -1) {
param.setProperty("maxOccurs", Long.toString(info.getMaxOccurs()));
}
if ((type instanceof ArrayType) && !type.isWriteOuter()) {
param.setProperty("org.apache.cxf.aegis.outerType", type);
ArrayType aType = (ArrayType) type;
type = aType.getComponentType();
usingComponentType = true;
}
}
if (info.getMappedName() != null) {
param.setConcreteName(info.getMappedName());
param.setName(info.getMappedName());
}
if (!usingComponentType) {
// We have to register the type if we want minOccurs and such to
// work. (for custom types). Is this really still true with all the
// param setting above?
if (info.nonDefaultAttributes()) {
tm.register(type);
}
type.setTypeMapping(tm);
}
part2Type.put(param, type);
}
return type;
}
private Method getMethod(Service s, OperationInfo op) {
Method m = op.getProperty(Method.class.getName(), Method.class);
if (m != null) {
return m;
}
MethodDispatcher md = (MethodDispatcher)s.get(MethodDispatcher.class.getName());
// The ibm jdk requires the simple frontend dependency to be
// present for the SimpleMethodDispatcher cast below even if
// md is null (sun jdk does not). So, for the jaxrs frontend,
// we can exclude the simple frontend from the aegis databinding
// dependency as long as this null check is here.
if (md == null) {
return null;
}
SimpleMethodDispatcher smd = (SimpleMethodDispatcher)md;
return smd != null ? smd.getPrimaryMethod(op) : null;
}
public AegisType getType(MessagePartInfo part) {
return part2Type.get(part);
}
public MessagePartInfo getPartFromClass(Class cls) {
for (Map.Entry entry : part2Type.entrySet()) {
if (entry.getValue().getTypeClass() == cls) {
return entry.getKey();
}
}
return null;
}
public AegisType getTypeFromClass(Class cls) {
for (AegisType t : part2Type.values()) {
if (t.getTypeClass() == cls) {
return t;
}
}
return null;
}
public Service getService() {
return service;
}
public AegisContext getAegisContext() {
ensureInitialized();
return aegisContext;
}
public void setAegisContext(AegisContext aegisContext) {
this.aegisContext = aegisContext;
}
public void setOverrideTypes(Set types) {
overrideTypes = types;
}
public void setConfiguration(TypeCreationOptions configuration) {
this.configuration = configuration;
}
public boolean isMtomUseXmime() {
return mtomUseXmime;
}
public void setMtomUseXmime(boolean mtomUseXmime) {
this.mtomUseXmime = mtomUseXmime;
}
}
