package ca.uhn.fhir.rest.method;
/*
* #%L
* HAPI FHIR Library
* %%
* Copyright (C) 2014 University Health Network
* %%
* Licensed 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.
* #L%
*/
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.Set;
import ca.uhn.fhir.context.ConfigurationException;
import ca.uhn.fhir.context.FhirContext;
import ca.uhn.fhir.context.RuntimeResourceDefinition;
import ca.uhn.fhir.model.api.IResource;
import ca.uhn.fhir.model.dstu.valueset.RestfulOperationSystemEnum;
import ca.uhn.fhir.model.dstu.valueset.RestfulOperationTypeEnum;
import ca.uhn.fhir.model.primitive.IdDt;
import ca.uhn.fhir.rest.annotation.Delete;
import ca.uhn.fhir.rest.annotation.IdParam;
import ca.uhn.fhir.rest.annotation.VersionIdParam;
import ca.uhn.fhir.rest.client.BaseHttpClientInvocation;
import ca.uhn.fhir.rest.method.SearchMethodBinding.RequestType;
import ca.uhn.fhir.rest.param.IParameter;
import ca.uhn.fhir.rest.param.ParameterUtil;
import ca.uhn.fhir.rest.server.IResourceProvider;
import ca.uhn.fhir.rest.server.exceptions.InternalErrorException;
public class DeleteMethodBinding extends BaseOutcomeReturningMethodBinding {
private String myResourceName;
private Integer myIdParameterIndex;
public DeleteMethodBinding(Method theMethod, FhirContext theContext, Object theProvider) {
super(theMethod, theContext, Delete.class,
theProvider);
Delete deleteAnnotation = theMethod.getAnnotation(Delete.class);
Class<? extends IResource> resourceType = deleteAnnotation.type();
if (resourceType != IResource.class) {
RuntimeResourceDefinition def = theContext.getResourceDefinition(resourceType);
myResourceName = def.getName();
} else {
if (theProvider != null && theProvider instanceof IResourceProvider) {
RuntimeResourceDefinition def = theContext.getResourceDefinition(((IResourceProvider) theProvider).getResourceType());
myResourceName = def.getName();
} else {
throw new ConfigurationException("Can not determine resource type for method '" + theMethod.getName() + "' on type " + theMethod.getDeclaringClass().getCanonicalName() + " - Did you forget to include the resourceType() value on the @"
+ Delete.class.getSimpleName() + " method annotation?");
}
}
myIdParameterIndex = ParameterUtil.findIdParameterIndex(theMethod);
if (myIdParameterIndex == null) {
throw new ConfigurationException("Method '" + theMethod.getName() + "' on type '" + theMethod.getDeclaringClass().getCanonicalName() + "' has no parameter annotated with the @" + IdParam.class.getSimpleName() + " annotation");
}
Integer versionIdParameterIndex = ParameterUtil.findVersionIdParameterIndex(theMethod);
if (versionIdParameterIndex != null) {
throw new ConfigurationException("Method '" + theMethod.getName() + "' on type '" + theMethod.getDeclaringClass().getCanonicalName() + "' has a parameter annotated with the @" + VersionIdParam.class.getSimpleName()
+ " annotation but delete methods may not have this annotation");
}
}
@Override
protected boolean requestContainsResource() {
return false;
}
@Override
protected boolean allowVoidReturnType() {
return true;
}
@Override
public RestfulOperationTypeEnum getResourceOperationType() {
return RestfulOperationTypeEnum.DELETE;
}
@Override
public RestfulOperationSystemEnum getSystemOperationType() {
return null;
}
@Override
protected Set<RequestType> provideAllowableRequestTypes() {
return Collections.singleton(RequestType.DELETE);
}
@Override
protected BaseHttpClientInvocation createClientInvocation(Object[] theArgs, IResource theResource) {
StringBuilder urlExtension = new StringBuilder();
urlExtension.append(getContext().getResourceDefinition(theResource).getName());
return new HttpPostClientInvocation(getContext(), theResource, urlExtension.toString());
}
@Override
public String getResourceName() {
return myResourceName;
}
@Override
public BaseHttpClientInvocation invokeClient(Object[] theArgs) throws InternalErrorException {
IdDt idDt = (IdDt) theArgs[myIdParameterIndex];
if (idDt == null) {
throw new NullPointerException("ID can not be null");
}
String resourceName = getResourceName();
HttpDeleteClientInvocation retVal = createDeleteInvocation(resourceName, idDt);
for (int idx = 0; idx < theArgs.length; idx++) {
IParameter nextParam = getParameters().get(idx);
nextParam.translateClientArgumentIntoQueryArgument(getContext(), theArgs[idx], null, retVal);
}
return retVal;
}
public static HttpDeleteClientInvocation createDeleteInvocation(String theResourceName, IdDt idDt) {
String id = idDt.getValue();
HttpDeleteClientInvocation retVal = new HttpDeleteClientInvocation(theResourceName, id);
return retVal;
}
@Override
protected void addParametersForServerRequest(Request theRequest, Object[] theParams) {
theParams[myIdParameterIndex] = theRequest.getId();
}
@Override
protected String getMatchingOperation() {
return null;
}
}