com.sun.xml.ws.client.RequestContext Maven / Gradle / Ivy
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package com.sun.xml.ws.client;
import com.sun.istack.NotNull;
import com.sun.xml.ws.api.EndpointAddress;
import com.sun.xml.ws.api.PropertySet;
import com.sun.xml.ws.api.message.Packet;
import javax.xml.ws.BindingProvider;
import javax.xml.ws.WebServiceException;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
/**
* Request context implementation.
*
* Why a custom map?
*
* The JAX-WS spec exposes properties as a {@link Map}, but if we just use
* an ordinary {@link HashMap} for this, it doesn't work as fast as we'd like
* it to be. Hence we have this class.
*
*
* We expect the user to set a few properties and then use that same
* setting to make a bunch of invocations. So we'd like to take some hit
* when the user actually sets a property to do some computation,
* then use that computed value during a method invocation again and again.
*
*
* For this goal, we use {@link PropertySet} and implement some properties
* as virtual properties backed by methods. This allows us to do the computation
* in the setter, and store it in a field.
*
*
* These fields are used by {@link Stub#process} to populate a {@link Packet}.
*
*
*
*
How it works?
*
* We make an assumption that a request context is mostly used to just
* get and put values, not really for things like enumerating or size.
*
*
* So we start by maintaining state as a combination of {@link #others}
* bag and strongly-typed fields. As long as the application uses
* just {@link Map#put}, {@link Map#get}, and {@link Map#putAll}, we can
* do things in this way. In this mode a {@link Map} we return works as
* a view into {@link RequestContext}, and by itself it maintains no state.
*
*
* If {@link RequestContext} is in this mode, its state can be copied
* efficiently into {@link Packet}.
*
*
* Once the application uses any other {@link Map} method, we move to
* the "fallback" mode, where the data is actually stored in a {@link HashMap},
* this is necessary for implementing the map interface contract correctly.
*
*
* To be safe, once we fallback, we'll never come back to the efficient state.
*
*
*
*
Caution
*
* Once we are in the fallback mode, none of the strongly typed field will
* be used, and they may contain stale values. So the only method
* the code outside this class can safely use is {@link #copy()},
* {@link #fill(Packet)}, and constructors. Do not access the strongly
* typed fields nor {@link #others} directly.
*
* @author Kohsuke Kawaguchi
*/
@SuppressWarnings({"SuspiciousMethodCalls"})
public final class RequestContext extends PropertySet {
/**
* The default value to be use for {@link #contentNegotiation} obtained
* from a system property.
*
* This enables content negotiation to be easily switched on by setting
* a system property on the command line for testing purposes tests.
*/
private static ContentNegotiation defaultContentNegotiation =
ContentNegotiation.obtainFromSystemProperty();
/**
* Stores properties that don't fit the strongly-typed fields.
*/
private final Map others;
/**
* The endpoint address to which this message is sent to.
*
*
* This is the actual data store for {@link BindingProvider#ENDPOINT_ADDRESS_PROPERTY}.
*/
private @NotNull EndpointAddress endpointAddress;
/**
* Creates {@link BindingProvider#ENDPOINT_ADDRESS_PROPERTY} view
* on top of {@link #endpointAddress}.
*
* @deprecated
* always access {@link #endpointAddress}.
*/
@Property(BindingProvider.ENDPOINT_ADDRESS_PROPERTY)
public String getEndPointAddressString() {
return endpointAddress.toString();
}
public void setEndPointAddressString(String s) {
if(s==null)
throw new IllegalArgumentException();
else
this.endpointAddress = EndpointAddress.create(s);
}
public void setEndpointAddress(@NotNull EndpointAddress epa) {
this.endpointAddress = epa;
}
public @NotNull EndpointAddress getEndpointAddress() {
return endpointAddress;
}
/**
* The value of {@link ContentNegotiation#PROPERTY}
* property.
*/
public ContentNegotiation contentNegotiation = defaultContentNegotiation;
@Property(ContentNegotiation.PROPERTY)
public String getContentNegotiationString() {
return contentNegotiation.toString();
}
public void setContentNegotiationString(String s) {
if(s==null)
contentNegotiation = ContentNegotiation.none;
else {
try {
contentNegotiation = ContentNegotiation.valueOf(s);
} catch (IllegalArgumentException e) {
// If the value is not recognized default to none
contentNegotiation = ContentNegotiation.none;
}
}
}
/**
* The value of the SOAPAction header associated with the message.
*
*
* For outgoing messages, the transport may sends out this value.
* If this field is null, the transport may choose to send ""
* (quoted empty string.)
*
* For incoming messages, the transport will set this field.
* If the incoming message did not contain the SOAPAction header,
* the transport sets this field to null.
*
*
* If the value is non-null, it must be always in the quoted form.
* The value can be null.
*
*
* Note that the way the transport sends this value out depends on
* transport and SOAP version.
*
* For HTTP transport and SOAP 1.1, BP requires that SOAPAction
* header is present (See {@BP R2744} and {@BP R2745}.) For SOAP 1.2,
* this is moved to the parameter of the "application/soap+xml".
*/
private String soapAction;
@Property(BindingProvider.SOAPACTION_URI_PROPERTY)
public String getSoapAction(){
return soapAction;
}
public void setSoapAction(String sAction){
if(sAction == null) {
throw new IllegalArgumentException("SOAPAction value cannot be null");
}
soapAction = sAction;
}
/**
* {@link Map} exposed to the user application.
*/
private final MapView mapView = new MapView();
/**
* Creates an empty {@link RequestContext}.
*/
/*package*/ RequestContext() {
others = new HashMap();
}
/**
* Copy constructor.
*/
private RequestContext(RequestContext that) {
others = new HashMap(that.others);
endpointAddress = that.endpointAddress;
soapAction = that.soapAction;
contentNegotiation = that.contentNegotiation;
// this is fragile, but it works faster
}
/**
* The efficient get method that reads from {@link RequestContext}.
*/
public Object get(Object key) {
if(super.supports(key))
return super.get(key);
else
return others.get(key);
}
/**
* The efficient put method that updates {@link RequestContext}.
*/
public Object put(String key, Object value) {
if(super.supports(key))
return super.put(key,value);
else
return others.put(key,value);
}
/**
* Gets the {@link Map} view of this request context.
*
* @return
* Always same object. Returned map is live.
*/
public Map getMapView() {
return mapView;
}
/**
* Fill a {@link Packet} with values of this {@link RequestContext}.
*/
public void fill(Packet packet) {
if(mapView.fallbackMap==null) {
if (endpointAddress != null)
packet.endpointAddress = endpointAddress;
packet.contentNegotiation = contentNegotiation;
if (soapAction != null) {
packet.soapAction = soapAction;
}
if(!others.isEmpty()) {
packet.invocationProperties.putAll(others);
//if it is not standard property it deafults to Scope.HANDLER
packet.getHandlerScopePropertyNames(false).addAll(others.keySet());
}
} else {
Set handlerScopePropertyNames = new HashSet();
// fallback mode, simply copy map in a slow way
for (Entry entry : mapView.fallbackMap.entrySet()) {
String key = entry.getKey();
if(packet.supports(key))
packet.put(key,entry.getValue());
else
packet.invocationProperties.put(key,entry.getValue());
//if it is not standard property it deafults to Scope.HANDLER
if(!super.supports(key)) {
handlerScopePropertyNames.add(key);
}
}
if(!handlerScopePropertyNames.isEmpty())
packet.getHandlerScopePropertyNames(false).addAll(handlerScopePropertyNames);
}
}
public RequestContext copy() {
return new RequestContext(this);
}
private final class MapView implements Map {
private Map fallbackMap;
private Map fallback() {
if(fallbackMap==null) {
// has to fall back. fill in fallbackMap
fallbackMap = new HashMap(others);
// then put all known properties
for (Map.Entry prop : propMap.entrySet()) {
fallbackMap.put(prop.getKey(),prop.getValue().get(RequestContext.this));
}
}
return fallbackMap;
}
public int size() {
return fallback().size();
}
public boolean isEmpty() {
return fallback().isEmpty();
}
public boolean containsKey(Object key) {
return fallback().containsKey(key);
}
public boolean containsValue(Object value) {
return fallback().containsValue(value);
}
public Object get(Object key) {
if (fallbackMap ==null) {
return RequestContext.this.get(key);
} else {
return fallback().get(key);
}
}
public Object put(String key, Object value) {
if(fallbackMap ==null)
return RequestContext.this.put(key,value);
else
return fallback().put(key, value);
}
public Object remove(Object key) {
if (fallbackMap ==null) {
return RequestContext.this.remove(key);
} else {
return fallback().remove(key);
}
}
public void putAll(Map t) {
for (Entry e : t.entrySet()) {
put(e.getKey(),e.getValue());
}
}
public void clear() {
fallback().clear();
}
public Set keySet() {
return fallback().keySet();
}
public Collection