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package com.sun.jersey.server.impl.model.method.dispatch;
import com.sun.jersey.spi.container.JavaMethodInvokerFactory;
import com.sun.jersey.spi.container.JavaMethodInvoker;
import com.sun.jersey.api.core.HttpContext;
import com.sun.jersey.api.model.AbstractResourceMethod;
import com.sun.jersey.api.model.Parameter;
import com.sun.jersey.api.representation.Form;
import com.sun.jersey.core.spi.component.ComponentScope;
import com.sun.jersey.server.impl.inject.AbstractHttpContextInjectable;
import com.sun.jersey.server.impl.inject.InjectableValuesProvider;
import com.sun.jersey.server.impl.model.parameter.multivalued.MultivaluedParameterExtractorProvider;
import com.sun.jersey.spi.dispatch.RequestDispatcher;
import com.sun.jersey.spi.inject.Injectable;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.FormParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MultivaluedMap;
/**
*
* @author Paul.Sandoz@Sun.Com
*/
public class FormDispatchProvider extends AbstractResourceMethodDispatchProvider {
public static final String FORM_PROPERTY = "com.sun.jersey.api.representation.form";
@Override
public RequestDispatcher create(AbstractResourceMethod abstractResourceMethod) {
return this.create(abstractResourceMethod, JavaMethodInvokerFactory.getDefault());
}
@Override
public RequestDispatcher create(AbstractResourceMethod abstractResourceMethod, JavaMethodInvoker invoker) {
if ("GET".equals(abstractResourceMethod.getHttpMethod())) {
return null;
}
return super.create(abstractResourceMethod, invoker);
}
@Override
protected InjectableValuesProvider getInjectableValuesProvider(AbstractResourceMethod abstractResourceMethod) {
List<Injectable> is = processParameters(abstractResourceMethod);
if (is == null)
return null;
return new FormParameterProvider(is);
}
@Context private MultivaluedParameterExtractorProvider mpep;
protected MultivaluedParameterExtractorProvider getMultivaluedParameterExtractorProvider() {
return mpep;
}
private void processForm(HttpContext context) {
Form form = (Form)context.getProperties().get(FORM_PROPERTY);
if (form == null) {
form = context.getRequest().getEntity(Form.class);
context.getProperties().put(FORM_PROPERTY, form);
}
}
private final class FormParameterProvider extends InjectableValuesProvider {
public FormParameterProvider(List<Injectable> is) {
super(is);
}
@Override
public Object[] getInjectableValues(HttpContext context) {
processForm(context);
return super.getInjectableValues(context);
}
}
private List<Injectable> processParameters(AbstractResourceMethod method) {
if (method.getParameters().isEmpty()) {
return null;
}
boolean hasFormParam = false;
for (int i = 0; i < method.getParameters().size(); i++) {
Parameter parameter = method.getParameters().get(i);
if (parameter.getAnnotation() != null)
hasFormParam |= parameter.getAnnotation().annotationType() == FormParam.class;
}
if (!hasFormParam)
return null;
return getInjectables(method);
}
private static final class FormEntityInjectable extends AbstractHttpContextInjectable<Object> {
final Class<?> c;
final Type t;
final Annotation[] as;
FormEntityInjectable(Class c, Type t, Annotation[] as) {
this.c = c;
this.t = t;
this.as = as;
}
@Override
public Object getValue(HttpContext context) {
return context.getProperties().get(FORM_PROPERTY);
}
}
protected List<Injectable> getInjectables(AbstractResourceMethod method) {
List<Injectable> is = new ArrayList<Injectable>(method.getParameters().size());
for (int i = 0; i < method.getParameters().size(); i++) {
Parameter p = method.getParameters().get(i);
if (Parameter.Source.ENTITY == p.getSource()) {
if (MultivaluedMap.class.isAssignableFrom(p.getParameterClass())) {
is.add(new FormEntityInjectable(p.getParameterClass(),
p.getParameterType(), p.getAnnotations()));
} else
is.add(null);
} else {
Injectable injectable = getInjectableProviderContext().
getInjectable(method.getMethod(), p, ComponentScope.PerRequest);
is.add(injectable);
}
}
return is;
}
}