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package com.sun.xml.internal.ws.client.sei;
import com.sun.xml.internal.ws.api.model.Parameter;
import com.sun.xml.internal.ws.model.ParameterImpl;
import com.sun.xml.internal.ws.spi.db.PropertyAccessor;
import javax.xml.ws.Holder;
import javax.xml.ws.WebServiceException;
import javax.xml.namespace.QName;
import javax.xml.bind.JAXBException;
Moves a Java value unmarshalled from a response message
to the right place.
Sometimes values are returned as a return value, and others are returned in the Holder value. Instances of this interface abstracts this detail.
ValueSetter is a stateless behavior encapsulation.
Author: Kohsuke Kawaguchi
/**
* Moves a Java value unmarshalled from a response message
* to the right place.
*
* <p>
* Sometimes values are returned as a return value, and
* others are returned in the {@link Holder} value. Instances
* of this interface abstracts this detail.
*
* <p>
* {@link ValueSetter} is a stateless behavior encapsulation.
*
* @author Kohsuke Kawaguchi
*/
public abstract class ValueSetter {
private ValueSetter() {}
Moves the value to the expected place.
Params: Returns: if obj is supposed to be returned as a return value from the method, this method returns obj. Otherwise null.
/**
* Moves the value to the expected place.
*
* @param obj
* The unmarshalled object.
* @param args
* The arguments given to the Java method invocation. If {@code obj}
* is supposed to be returned as a {@link Holder} value, a suitable
* {@link Holder} is obtained from this argument list and {@code obj}
* is set.
*
* @return
* if {@code obj} is supposed to be returned as a return value
* from the method, this method returns {@code obj}. Otherwise null.
*/
abstract Object put(Object obj, Object[] args);
Singleton instance.
/**
* Singleton instance.
*/
private static final ValueSetter RETURN_VALUE = new ReturnValue();
Params with small index numbers are used often, so we pool them to reduce the footprint. /**
* {@link Param}s with small index numbers are used often,
* so we pool them to reduce the footprint.
*/
private static final ValueSetter[] POOL = new ValueSetter[16];
static {
for( int i=0; i<POOL.length; i++ )
POOL[i] = new Param(i);
}
Returns a ValueSetter suitable for the given Parameter. /**
* Returns a {@link ValueSetter} suitable for the given {@link Parameter}.
*/
static ValueSetter getSync(ParameterImpl p) {
int idx = p.getIndex();
if(idx==-1)
return RETURN_VALUE;
if(idx<POOL.length)
return POOL[idx];
else
return new Param(idx);
}
private static final class ReturnValue extends ValueSetter {
Object put(Object obj, Object[] args) {
return obj;
}
}
static final class Param extends ValueSetter {
Index of the argument to put the value to.
/**
* Index of the argument to put the value to.
*/
private final int idx;
public Param(int idx) {
this.idx = idx;
}
Object put(Object obj, Object[] args) {
Object arg = args[idx];
if(arg!=null) {
// we build model in such a way that this is guaranteed
assert arg instanceof Holder;
((Holder)arg).value = obj;
}
// else {
// if null is given as a Holder, there's no place to return
// the value, so just ignore.
// }
// no value to return
return null;
}
}
Singleton instance.
/**
* Singleton instance.
*/
static final ValueSetter SINGLE_VALUE = new SingleValue();
Used in case of async invocation, where there is only one OUT parameter
/**
* Used in case of async invocation, where there is only one OUT parameter
*/
private static final class SingleValue extends ValueSetter {
Set args[0] as the value
/**
* Set args[0] as the value
*/
Object put(Object obj, Object[] args) {
args[0] = obj;
return null;
}
}
OUT parameters are set in async bean
/**
* OUT parameters are set in async bean
*/
static final class AsyncBeanValueSetter extends ValueSetter {
private final PropertyAccessor accessor;
AsyncBeanValueSetter(ParameterImpl p, Class wrapper) {
QName name = p.getName();
try {
accessor = p.getOwner().getBindingContext().getElementPropertyAccessor(
wrapper, name.getNamespaceURI(), name.getLocalPart() );
} catch (JAXBException e) {
throw new WebServiceException( // TODO: i18n
wrapper+" do not have a property of the name "+name,e);
}
}
Sets the property in async bean instance
Params: - obj – property in async bean
- args – args[0] contains async bean instance
Returns: null always
/**
* Sets the property in async bean instance
*
* @param obj property in async bean
* @param args args[0] contains async bean instance
* @return null always
*/
Object put(Object obj, Object[] args) {
assert args != null;
assert args.length == 1;
assert args[0] != null;
Object bean = args[0];
try {
accessor.set(bean, obj);
} catch (Exception e) {
throw new WebServiceException(e); // TODO:i18n
}
return null;
}
}
}