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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.camel.component.fhir.api;
import java.util.Map;
import ca.uhn.fhir.rest.client.api.IGenericClient;
import ca.uhn.fhir.rest.gclient.IReadExecutable;
import ca.uhn.fhir.rest.gclient.IReadIfNoneMatch;
import ca.uhn.fhir.rest.gclient.IReadTyped;
import org.hl7.fhir.instance.model.api.IBaseResource;
import org.hl7.fhir.instance.model.api.IIdType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* API method for "read" operations
*/
public class FhirRead {
private static final Logger LOG = LoggerFactory.getLogger(FhirRead.class);
private final IGenericClient client;
public FhirRead(IGenericClient client) {
this.client = client;
}
/**
* Reads a {@link IBaseResource} on the server by id
*
* @param resource The resource to read (e.g. Patient)
* @param id the {@link IIdType} referencing the resource
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceById(
Class resource, IIdType id, String ifVersionMatches,
Boolean returnNull, IBaseResource returnResource, Boolean throwError,
Map extraParameters) {
IReadExecutable readExecutable = client.read().resource(resource).withId(id);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
/**
* Reads a {@link IBaseResource} on the server by id
*
* @param resourceClass the resource to read (e.g. Patient.class)
* @param id the {@link IIdType} referencing the resource
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceById(
String resourceClass, IIdType id, String ifVersionMatches, Boolean returnNull,
IBaseResource returnResource, Boolean throwError, Map extraParameters) {
IReadExecutable readExecutable = client.read().resource(resourceClass).withId(id);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
/**
* Reads a {@link IBaseResource} on the server by id
*
* @param resource The resource to read (e.g. Patient)
* @param stringId The resource ID
* @param version the resource version
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceById(
Class resource, String stringId, String version, String ifVersionMatches,
Boolean returnNull, IBaseResource returnResource, Boolean throwError,
Map extraParameters) {
IReadTyped readTyped = client.read().resource(resource);
IReadExecutable readExecutable = readWithOptionalVersion(stringId, readTyped, version);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
/**
* Reads a {@link IBaseResource} on the server by id
*
* @param resourceClass the resource to read (e.g. Patient.class)
* @param stringId The resource ID
* @param version the resource version
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceById(
String resourceClass, String stringId, String ifVersionMatches, String version,
Boolean returnNull, IBaseResource returnResource, Boolean throwError,
Map extraParameters) {
IReadTyped resource = client.read().resource(resourceClass);
IReadExecutable readExecutable = readWithOptionalVersion(stringId, resource, version);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
/**
* Reads a {@link IBaseResource} on the server by id
*
* @param resource The resource to read (e.g. Patient)
* @param longId The resource ID
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceById(
Class resource, Long longId, String ifVersionMatches,
Boolean returnNull, IBaseResource returnResource, Boolean throwError,
Map extraParameters) {
IReadExecutable readExecutable = client.read().resource(resource).withId(longId);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
/**
* Reads a {@link IBaseResource} on the server by id
*
* @param resourceClass the resource to read (e.g. Patient)
* @param longId The resource ID
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceById(
String resourceClass, Long longId, String ifVersionMatches, Boolean returnNull,
IBaseResource returnResource, Boolean throwError, Map extraParameters) {
IReadExecutable readExecutable = client.read().resource(resourceClass).withId(longId);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
/**
* Reads a {@link IBaseResource} on the server by url
*
* @param resource The resource to read (e.g. Patient)
* @param iUrl the {@link IIdType} referencing the resource by absolute url
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceByUrl(
Class resource, IIdType iUrl, String ifVersionMatches,
Boolean returnNull, IBaseResource returnResource, Boolean throwError,
Map extraParameters) {
IReadExecutable readExecutable = client.read().resource(resource).withUrl(iUrl);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
/**
* Reads a {@link IBaseResource} on the server by url
*
* @param resourceClass the resource to read (e.g. Patient.class)
* @param iUrl the {@link IIdType} referencing the resource by absolute url
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceByUrl(
String resourceClass, IIdType iUrl, String ifVersionMatches, Boolean returnNull,
IBaseResource returnResource, Boolean throwError, Map extraParameters) {
IReadExecutable readExecutable = client.read().resource(resourceClass).withUrl(iUrl);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
/**
* Reads a {@link IBaseResource} on the server by url
*
* @param resource The resource to read (e.g. Patient)
* @param url referencing the resource by absolute url
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceByUrl(
Class resource, String url, String ifVersionMatches,
Boolean returnNull, IBaseResource returnResource, Boolean throwError,
Map extraParameters) {
IReadExecutable readExecutable = client.read().resource(resource).withUrl(url);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
/**
* Reads a {@link IBaseResource} on the server by url
*
* @param resourceClass the resource to read (e.g. Patient.class)
* @param url referencing the resource by absolute url
* @param ifVersionMatches a version to match against the newest version on the server.
* @param returnNull return null if version matches
* @param returnResource return the resource if version matches
* @param throwError throw error if the version matches
* @param extraParameters see {@link ExtraParameters} for a full list of parameters that can be passed, may be NULL
*/
public IBaseResource resourceByUrl(
String resourceClass, String url, String ifVersionMatches, Boolean returnNull,
IBaseResource returnResource, Boolean throwError, Map extraParameters) {
IReadExecutable readExecutable = client.read().resource(resourceClass).withUrl(url);
ExtraParameters.process(extraParameters, readExecutable);
return processOptionalParams(ifVersionMatches, returnNull, returnResource, throwError, readExecutable);
}
private IBaseResource processOptionalParams(
String ifVersionMatches, Boolean returnNull, IBaseResource returnResource,
Boolean throwError, IReadExecutable readExecutable) {
if (ifVersionMatches != null) {
IReadIfNoneMatch tiReadIfNoneMatch = readExecutable.ifVersionMatches(ifVersionMatches);
if (returnNull != null && returnNull) {
return tiReadIfNoneMatch.returnNull().execute();
} else if (returnResource != null) {
return tiReadIfNoneMatch.returnResource(returnResource).execute();
} else if (throwError != null) {
return tiReadIfNoneMatch.throwNotModifiedException().execute();
}
LOG.warn("No operation was specified with the If-None-Match header, ignoring");
}
return readExecutable.execute();
}
private IReadExecutable readWithOptionalVersion(
String stringId, IReadTyped resource, String version) {
if (version != null) {
return resource.withIdAndVersion(stringId, version);
}
return resource.withId(stringId);
}
}
