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/*-
* #%L
* HAPI FHIR - Core Library
* %%
* Copyright (C) 2014 - 2024 Smile CDR, Inc.
* %%
* 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.
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*/
package ca.uhn.fhir.util;
import ca.uhn.fhir.context.BaseRuntimeChildDefinition;
import ca.uhn.fhir.context.BaseRuntimeElementDefinition;
import ca.uhn.fhir.context.FhirContext;
import ca.uhn.fhir.context.FhirVersionEnum;
import ca.uhn.fhir.context.RuntimeResourceDefinition;
import ca.uhn.fhir.model.primitive.IdDt;
import jakarta.annotation.Nonnull;
import jakarta.annotation.Nullable;
import org.apache.commons.lang3.Validate;
import org.hl7.fhir.instance.model.api.IBase;
import org.hl7.fhir.instance.model.api.IBaseBackboneElement;
import org.hl7.fhir.instance.model.api.IBaseBundle;
import org.hl7.fhir.instance.model.api.IBaseParameters;
import org.hl7.fhir.instance.model.api.IBaseResource;
import org.hl7.fhir.instance.model.api.IIdType;
import org.hl7.fhir.instance.model.api.IPrimitiveType;
import java.util.Date;
import java.util.Objects;
/**
* This class can be used to build a Bundle resource to be used as a FHIR transaction. Convenience methods provide
* support for setting various bundle fields and working with bundle parts such as metadata and entry
* (method and search).
*
*
*
* This is not yet complete, and doesn't support all FHIR features. USE WITH CAUTION as the API
* may change.
*
* @since 5.1.0
*/
public class BundleBuilder {
private final FhirContext myContext;
private final IBaseBundle myBundle;
private final RuntimeResourceDefinition myBundleDef;
private final BaseRuntimeChildDefinition myEntryChild;
private final BaseRuntimeChildDefinition myMetaChild;
private final BaseRuntimeChildDefinition mySearchChild;
private final BaseRuntimeElementDefinition myEntryDef;
private final BaseRuntimeElementDefinition myMetaDef;
private final BaseRuntimeElementDefinition mySearchDef;
private final BaseRuntimeChildDefinition myEntryResourceChild;
private final BaseRuntimeChildDefinition myEntryFullUrlChild;
private final BaseRuntimeChildDefinition myEntryRequestChild;
private final BaseRuntimeElementDefinition myEntryRequestDef;
private final BaseRuntimeChildDefinition myEntryRequestUrlChild;
private final BaseRuntimeChildDefinition myEntryRequestMethodChild;
private final BaseRuntimeElementDefinition myEntryRequestMethodDef;
private final BaseRuntimeChildDefinition myEntryRequestIfNoneExistChild;
/**
* Constructor
*/
public BundleBuilder(FhirContext theContext) {
myContext = theContext;
myBundleDef = myContext.getResourceDefinition("Bundle");
myBundle = (IBaseBundle) myBundleDef.newInstance();
myEntryChild = myBundleDef.getChildByName("entry");
myEntryDef = myEntryChild.getChildByName("entry");
mySearchChild = myEntryDef.getChildByName("search");
mySearchDef = mySearchChild.getChildByName("search");
if (myContext.getVersion().getVersion().isEqualOrNewerThan(FhirVersionEnum.DSTU3)) {
myMetaChild = myBundleDef.getChildByName("meta");
myMetaDef = myMetaChild.getChildByName("meta");
} else {
myMetaChild = null;
myMetaDef = null;
}
myEntryResourceChild = myEntryDef.getChildByName("resource");
myEntryFullUrlChild = myEntryDef.getChildByName("fullUrl");
myEntryRequestChild = myEntryDef.getChildByName("request");
myEntryRequestDef = myEntryRequestChild.getChildByName("request");
myEntryRequestUrlChild = myEntryRequestDef.getChildByName("url");
myEntryRequestMethodChild = myEntryRequestDef.getChildByName("method");
myEntryRequestMethodDef = myEntryRequestMethodChild.getChildByName("method");
myEntryRequestIfNoneExistChild = myEntryRequestDef.getChildByName("ifNoneExist");
}
/**
* Sets the specified primitive field on the bundle with the value provided.
*
* @param theFieldName Name of the primitive field.
* @param theFieldValue Value of the field to be set.
*/
public BundleBuilder setBundleField(String theFieldName, String theFieldValue) {
BaseRuntimeChildDefinition typeChild = myBundleDef.getChildByName(theFieldName);
Validate.notNull(typeChild, "Unable to find field %s", theFieldName);
IPrimitiveType type = (IPrimitiveType)
typeChild.getChildByName(theFieldName).newInstance(typeChild.getInstanceConstructorArguments());
type.setValueAsString(theFieldValue);
typeChild.getMutator().setValue(myBundle, type);
return this;
}
/**
* Sets the specified primitive field on the search entry with the value provided.
*
* @param theSearch Search part of the entry
* @param theFieldName Name of the primitive field.
* @param theFieldValue Value of the field to be set.
*/
public BundleBuilder setSearchField(IBase theSearch, String theFieldName, String theFieldValue) {
BaseRuntimeChildDefinition typeChild = mySearchDef.getChildByName(theFieldName);
Validate.notNull(typeChild, "Unable to find field %s", theFieldName);
IPrimitiveType type = (IPrimitiveType)
typeChild.getChildByName(theFieldName).newInstance(typeChild.getInstanceConstructorArguments());
type.setValueAsString(theFieldValue);
typeChild.getMutator().setValue(theSearch, type);
return this;
}
public BundleBuilder setSearchField(IBase theSearch, String theFieldName, IPrimitiveType theFieldValue) {
BaseRuntimeChildDefinition typeChild = mySearchDef.getChildByName(theFieldName);
Validate.notNull(typeChild, "Unable to find field %s", theFieldName);
typeChild.getMutator().setValue(theSearch, theFieldValue);
return this;
}
/**
* Adds a FHIRPatch patch bundle to the transaction
*
* @param theTarget The target resource ID to patch
* @param thePatch The FHIRPath Parameters resource
* @since 6.3.0
*/
public PatchBuilder addTransactionFhirPatchEntry(IIdType theTarget, IBaseParameters thePatch) {
Validate.notNull(theTarget, "theTarget must not be null");
Validate.notBlank(theTarget.getResourceType(), "theTarget must contain a resource type");
Validate.notBlank(theTarget.getIdPart(), "theTarget must contain an ID");
IPrimitiveType url = addAndPopulateTransactionBundleEntryRequest(
thePatch,
theTarget.getValue(),
theTarget.toUnqualifiedVersionless().getValue(),
"PATCH");
return new PatchBuilder(url);
}
/**
* Adds a FHIRPatch patch bundle to the transaction. This method is intended for conditional PATCH operations. If you
* know the ID of the resource you wish to patch, use {@link #addTransactionFhirPatchEntry(IIdType, IBaseParameters)}
* instead.
*
* @param thePatch The FHIRPath Parameters resource
* @see #addTransactionFhirPatchEntry(IIdType, IBaseParameters)
* @since 6.3.0
*/
public PatchBuilder addTransactionFhirPatchEntry(IBaseParameters thePatch) {
IPrimitiveType url = addAndPopulateTransactionBundleEntryRequest(thePatch, null, null, "PATCH");
return new PatchBuilder(url);
}
/**
* Adds an entry containing an update (PUT) request.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* @param theResource The resource to update
*/
public UpdateBuilder addTransactionUpdateEntry(IBaseResource theResource) {
Validate.notNull(theResource, "theResource must not be null");
IIdType id = getIdTypeForUpdate(theResource);
String requestUrl = id.toUnqualifiedVersionless().getValue();
String fullUrl = id.getValue();
String verb = "PUT";
IPrimitiveType url = addAndPopulateTransactionBundleEntryRequest(theResource, fullUrl, requestUrl, verb);
return new UpdateBuilder(url);
}
@Nonnull
private IPrimitiveType addAndPopulateTransactionBundleEntryRequest(
IBaseResource theResource, String theFullUrl, String theRequestUrl, String theHttpVerb) {
setBundleField("type", "transaction");
IBase request = addEntryAndReturnRequest(theResource, theFullUrl);
// Bundle.entry.request.url
IPrimitiveType url =
(IPrimitiveType) myContext.getElementDefinition("uri").newInstance();
url.setValueAsString(theRequestUrl);
myEntryRequestUrlChild.getMutator().setValue(request, url);
// Bundle.entry.request.method
addRequestMethod(request, theHttpVerb);
return url;
}
/**
* Adds an entry containing an update (UPDATE) request without the body of the resource.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* @param theResource The resource to update.
*/
public void addTransactionUpdateIdOnlyEntry(IBaseResource theResource) {
setBundleField("type", "transaction");
Validate.notNull(theResource, "theResource must not be null");
IIdType id = getIdTypeForUpdate(theResource);
String requestUrl = id.toUnqualifiedVersionless().getValue();
String fullUrl = id.getValue();
String httpMethod = "PUT";
addIdOnlyEntry(requestUrl, httpMethod, fullUrl);
}
/**
* Adds an entry containing an create (POST) request.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* @param theResource The resource to create
*/
public CreateBuilder addTransactionCreateEntry(IBaseResource theResource) {
return addTransactionCreateEntry(theResource, null);
}
/**
* Adds an entry containing an create (POST) request.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* @param theResource The resource to create
* @param theFullUrl The fullUrl to attach to the entry. If null, will default to the resource ID.
*/
public CreateBuilder addTransactionCreateEntry(IBaseResource theResource, @Nullable String theFullUrl) {
setBundleField("type", "transaction");
IBase request = addEntryAndReturnRequest(
theResource,
theFullUrl != null ? theFullUrl : theResource.getIdElement().getValue());
String resourceType = myContext.getResourceType(theResource);
// Bundle.entry.request.url
addRequestUrl(request, resourceType);
// Bundle.entry.request.method
addRequestMethod(request, "POST");
return new CreateBuilder(request);
}
/**
* Adds an entry containing a create (POST) request without the body of the resource.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* @param theResource The resource to create
*/
public void addTransactionCreateEntryIdOnly(IBaseResource theResource) {
setBundleField("type", "transaction");
String requestUrl = myContext.getResourceType(theResource);
String fullUrl = theResource.getIdElement().getValue();
String httpMethod = "POST";
addIdOnlyEntry(requestUrl, httpMethod, fullUrl);
}
private void addIdOnlyEntry(String theRequestUrl, String theHttpMethod, String theFullUrl) {
IBase entry = addEntry();
// Bundle.entry.request
IBase request = myEntryRequestDef.newInstance();
myEntryRequestChild.getMutator().setValue(entry, request);
// Bundle.entry.request.url
addRequestUrl(request, theRequestUrl);
// Bundle.entry.request.method
addRequestMethod(request, theHttpMethod);
// Bundle.entry.fullUrl
addFullUrl(entry, theFullUrl);
}
/**
* Adds an entry containing a delete (DELETE) request.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* Note that the resource is only used to extract its ID and type, and the body of the resource is not included in the entry,
*
* @param theCondition The conditional URL, e.g. "Patient?identifier=foo|bar"
* @since 6.8.0
*/
public DeleteBuilder addTransactionDeleteConditionalEntry(String theCondition) {
Validate.notBlank(theCondition, "theCondition must not be blank");
setBundleField("type", "transaction");
return addDeleteEntry(theCondition);
}
/**
* Adds an entry containing a delete (DELETE) request.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* Note that the resource is only used to extract its ID and type, and the body of the resource is not included in the entry,
*
* @param theResource The resource to delete.
*/
public DeleteBuilder addTransactionDeleteEntry(IBaseResource theResource) {
String resourceType = myContext.getResourceType(theResource);
String idPart = theResource.getIdElement().toUnqualifiedVersionless().getIdPart();
return addTransactionDeleteEntry(resourceType, idPart);
}
/**
* Adds an entry containing a delete (DELETE) request.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* Note that the resource is only used to extract its ID and type, and the body of the resource is not included in the entry,
*
* @param theResourceId The resource ID to delete.
* @return
*/
public DeleteBuilder addTransactionDeleteEntry(IIdType theResourceId) {
String resourceType = theResourceId.getResourceType();
String idPart = theResourceId.getIdPart();
return addTransactionDeleteEntry(resourceType, idPart);
}
/**
* Adds an entry containing a delete (DELETE) request.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* @param theResourceType The type resource to delete.
* @param theIdPart the ID of the resource to delete.
*/
public DeleteBuilder addTransactionDeleteEntry(String theResourceType, String theIdPart) {
setBundleField("type", "transaction");
IdDt idDt = new IdDt(theIdPart);
String deleteUrl = idDt.toUnqualifiedVersionless()
.withResourceType(theResourceType)
.getValue();
return addDeleteEntry(deleteUrl);
}
/**
* Adds an entry containing a delete (DELETE) request.
* Also sets the Bundle.type value to "transaction" if it is not already set.
*
* @param theMatchUrl The match URL, e.g. Patient?identifier=http://foo|123
* @since 6.3.0
*/
public BaseOperationBuilder addTransactionDeleteEntryConditional(String theMatchUrl) {
Validate.notBlank(theMatchUrl, "theMatchUrl must not be null or blank");
return addDeleteEntry(theMatchUrl);
}
@Nonnull
private DeleteBuilder addDeleteEntry(String theDeleteUrl) {
IBase request = addEntryAndReturnRequest();
// Bundle.entry.request.url
addRequestUrl(request, theDeleteUrl);
// Bundle.entry.request.method
addRequestMethod(request, "DELETE");
return new DeleteBuilder();
}
private IIdType getIdTypeForUpdate(IBaseResource theResource) {
IIdType id = theResource.getIdElement();
if (id.hasIdPart() && !id.hasResourceType()) {
String resourceType = myContext.getResourceType(theResource);
id = id.withResourceType(resourceType);
}
return id;
}
private void addFullUrl(IBase theEntry, String theFullUrl) {
IPrimitiveType fullUrl =
(IPrimitiveType) myContext.getElementDefinition("uri").newInstance();
fullUrl.setValueAsString(theFullUrl);
myEntryFullUrlChild.getMutator().setValue(theEntry, fullUrl);
}
private void addRequestUrl(IBase request, String theRequestUrl) {
IPrimitiveType url =
(IPrimitiveType) myContext.getElementDefinition("uri").newInstance();
url.setValueAsString(theRequestUrl);
myEntryRequestUrlChild.getMutator().setValue(request, url);
}
private void addRequestMethod(IBase theRequest, String theMethod) {
IPrimitiveType method = (IPrimitiveType)
myEntryRequestMethodDef.newInstance(myEntryRequestMethodChild.getInstanceConstructorArguments());
method.setValueAsString(theMethod);
myEntryRequestMethodChild.getMutator().setValue(theRequest, method);
}
/**
* Adds an entry for a Collection bundle type
*/
public void addCollectionEntry(IBaseResource theResource) {
setType("collection");
addEntryAndReturnRequest(theResource, theResource.getIdElement().getValue());
}
/**
* Adds an entry for a Document bundle type
*/
public void addDocumentEntry(IBaseResource theResource) {
setType("document");
addEntryAndReturnRequest(theResource, theResource.getIdElement().getValue());
}
/**
* Creates new entry and adds it to the bundle
*
* @return Returns the new entry.
*/
public IBase addEntry() {
IBase entry = myEntryDef.newInstance();
myEntryChild.getMutator().addValue(myBundle, entry);
return entry;
}
/**
* Creates new search instance for the specified entry.
* Note that this method does not work for DSTU2 model classes, it will only work
* on DSTU3+.
*
* @param entry Entry to create search instance for
* @return Returns the search instance
*/
public IBaseBackboneElement addSearch(IBase entry) {
Validate.isTrue(
myContext.getVersion().getVersion().isEqualOrNewerThan(FhirVersionEnum.DSTU3),
"This method may only be called for FHIR version DSTU3 and above");
IBase searchInstance = mySearchDef.newInstance();
mySearchChild.getMutator().setValue(entry, searchInstance);
return (IBaseBackboneElement) searchInstance;
}
private IBase addEntryAndReturnRequest(IBaseResource theResource, String theFullUrl) {
Validate.notNull(theResource, "theResource must not be null");
IBase entry = addEntry();
// Bundle.entry.fullUrl
addFullUrl(entry, theFullUrl);
// Bundle.entry.resource
myEntryResourceChild.getMutator().setValue(entry, theResource);
// Bundle.entry.request
IBase request = myEntryRequestDef.newInstance();
myEntryRequestChild.getMutator().setValue(entry, request);
return request;
}
public IBase addEntryAndReturnRequest() {
IBase entry = addEntry();
// Bundle.entry.request
IBase request = myEntryRequestDef.newInstance();
myEntryRequestChild.getMutator().setValue(entry, request);
return request;
}
public IBaseBundle getBundle() {
return myBundle;
}
/**
* Convenience method which auto-casts the results of {@link #getBundle()}
*
* @since 6.3.0
*/
public T getBundleTyped() {
return (T) myBundle;
}
/**
* Note that this method does not work for DSTU2 model classes, it will only work
* on DSTU3+.
*/
public BundleBuilder setMetaField(String theFieldName, IBase theFieldValue) {
Validate.isTrue(
myContext.getVersion().getVersion().isEqualOrNewerThan(FhirVersionEnum.DSTU3),
"This method may only be called for FHIR version DSTU3 and above");
BaseRuntimeChildDefinition.IMutator mutator =
myMetaDef.getChildByName(theFieldName).getMutator();
mutator.setValue(myBundle.getMeta(), theFieldValue);
return this;
}
/**
* Sets the specified entry field.
*
* @param theEntry The entry instance to set values on
* @param theEntryChildName The child field name of the entry instance to be set
* @param theValue The field value to set
*/
public void addToEntry(IBase theEntry, String theEntryChildName, IBase theValue) {
addToBase(theEntry, theEntryChildName, theValue, myEntryDef);
}
/**
* Sets the specified search field.
*
* @param theSearch The search instance to set values on
* @param theSearchFieldName The child field name of the search instance to be set
* @param theSearchFieldValue The field value to set
*/
public void addToSearch(IBase theSearch, String theSearchFieldName, IBase theSearchFieldValue) {
addToBase(theSearch, theSearchFieldName, theSearchFieldValue, mySearchDef);
}
private void addToBase(
IBase theBase, String theSearchChildName, IBase theValue, BaseRuntimeElementDefinition mySearchDef) {
BaseRuntimeChildDefinition defn = mySearchDef.getChildByName(theSearchChildName);
Validate.notNull(defn, "Unable to get child definition %s from %s", theSearchChildName, theBase);
defn.getMutator().addValue(theBase, theValue);
}
/**
* Creates a new primitive.
*
* @param theTypeName The element type for the primitive
* @param Actual type of the parameterized primitive type interface
* @return Returns the new empty instance of the element definition.
*/
public IPrimitiveType newPrimitive(String theTypeName) {
BaseRuntimeElementDefinition primitiveDefinition = myContext.getElementDefinition(theTypeName);
Validate.notNull(primitiveDefinition, "Unable to find definition for %s", theTypeName);
return (IPrimitiveType) primitiveDefinition.newInstance();
}
/**
* Creates a new primitive instance of the specified element type.
*
* @param theTypeName Element type to create
* @param theInitialValue Initial value to be set on the new instance
* @param Actual type of the parameterized primitive type interface
* @return Returns the newly created instance
*/
public IPrimitiveType newPrimitive(String theTypeName, T theInitialValue) {
IPrimitiveType retVal = newPrimitive(theTypeName);
retVal.setValue(theInitialValue);
return retVal;
}
/**
* Sets a value for Bundle.type. That this is a coded field so {@literal theType}
* must be an actual valid value for this field or a {@link ca.uhn.fhir.parser.DataFormatException}
* will be thrown.
*/
public void setType(String theType) {
setBundleField("type", theType);
}
/**
* Adds an identifier to Bundle.identifier
*
* @param theSystem The system
* @param theValue The value
* @since 6.4.0
*/
public void setIdentifier(@Nullable String theSystem, @Nullable String theValue) {
FhirTerser terser = myContext.newTerser();
IBase identifier = terser.addElement(myBundle, "identifier");
terser.setElement(identifier, "system", theSystem);
terser.setElement(identifier, "value", theValue);
}
/**
* Sets the timestamp in Bundle.timestamp
*
* @since 6.4.0
*/
public void setTimestamp(@Nonnull IPrimitiveType theTimestamp) {
FhirTerser terser = myContext.newTerser();
terser.setElement(myBundle, "Bundle.timestamp", theTimestamp.getValueAsString());
}
public class DeleteBuilder extends BaseOperationBuilder {
// nothing yet
}
public class PatchBuilder extends BaseOperationBuilderWithConditionalUrl {
PatchBuilder(IPrimitiveType theUrl) {
super(theUrl);
}
}
public class UpdateBuilder extends BaseOperationBuilderWithConditionalUrl {
UpdateBuilder(IPrimitiveType theUrl) {
super(theUrl);
}
}
public class CreateBuilder extends BaseOperationBuilder {
private final IBase myRequest;
CreateBuilder(IBase theRequest) {
myRequest = theRequest;
}
/**
* Make this create a Conditional Create
*/
public CreateBuilder conditional(String theConditionalUrl) {
BaseRuntimeElementDefinition stringDefinition =
Objects.requireNonNull(myContext.getElementDefinition("string"));
IPrimitiveType ifNoneExist = (IPrimitiveType) stringDefinition.newInstance();
ifNoneExist.setValueAsString(theConditionalUrl);
myEntryRequestIfNoneExistChild.getMutator().setValue(myRequest, ifNoneExist);
return this;
}
}
public abstract class BaseOperationBuilder {
/**
* Returns a reference to the BundleBuilder instance.
*
* Calling this method has no effect at all, it is only
* provided for easy method chaning if you want to build
* your bundle as a single fluent call.
*
* @since 6.3.0
*/
public BundleBuilder andThen() {
return BundleBuilder.this;
}
}
public abstract class BaseOperationBuilderWithConditionalUrl
extends BaseOperationBuilder {
private final IPrimitiveType myUrl;
BaseOperationBuilderWithConditionalUrl(IPrimitiveType theUrl) {
myUrl = theUrl;
}
/**
* Make this update a Conditional Update
*/
@SuppressWarnings("unchecked")
public T conditional(String theConditionalUrl) {
myUrl.setValueAsString(theConditionalUrl);
return (T) this;
}
}
}