001package ca.uhn.fhir.cql.common.helper;
002
003/*-
004 * #%L
005 * HAPI FHIR JPA Server - Clinical Quality Language
006 * %%
007 * Copyright (C) 2014 - 2022 Smile CDR, Inc.
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 *
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 *
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import ca.uhn.fhir.i18n.Msg;
024import org.cqframework.cql.cql2elm.CqlTranslator;
025import org.cqframework.cql.cql2elm.CqlTranslatorException;
026import org.cqframework.cql.cql2elm.LibraryManager;
027import org.cqframework.cql.cql2elm.ModelManager;
028import org.cqframework.cql.elm.execution.Library;
029import org.cqframework.cql.elm.tracking.TrackBack;
030import org.opencds.cqf.cql.engine.execution.CqlLibraryReader;
031
032import javax.xml.bind.JAXBException;
033import java.io.ByteArrayInputStream;
034import java.io.IOException;
035import java.io.InputStream;
036import java.nio.charset.StandardCharsets;
037import java.util.ArrayList;
038
039public class TranslatorHelper {
040        public static Library readLibrary(InputStream xmlStream) {
041                try {
042                        return CqlLibraryReader.read(xmlStream);
043                } catch (IOException | JAXBException e) {
044                        throw new IllegalArgumentException(Msg.code(1660) + "Error encountered while reading ELM xml: " + e.getMessage());
045                }
046        }
047
048        public static String errorsToString(Iterable<CqlTranslatorException> exceptions) {
049                ArrayList<String> errors = new ArrayList<>();
050                for (CqlTranslatorException error : exceptions) {
051                        TrackBack tb = error.getLocator();
052                        String lines = tb == null ? "[n/a]"
053                                : String.format("%s [%d:%d, %d:%d] ",
054                                (tb.getLibrary() != null ? tb.getLibrary().getId()
055                                        + (tb.getLibrary().getVersion() != null ? ("-" + tb.getLibrary().getVersion()) : "")
056                                        : ""),
057                                tb.getStartLine(), tb.getStartChar(), tb.getEndLine(), tb.getEndChar());
058                        errors.add(lines + error.getMessage());
059                }
060
061                return String.join("\n", errors);
062        }
063
064        public static CqlTranslator getTranslator(String cql, LibraryManager libraryManager, ModelManager modelManager) {
065                return getTranslator(new ByteArrayInputStream(cql.getBytes(StandardCharsets.UTF_8)), libraryManager,
066                        modelManager);
067        }
068
069        public static CqlTranslator getTranslator(InputStream cqlStream, LibraryManager libraryManager,
070                                                                                                                        ModelManager modelManager) {
071                ArrayList<CqlTranslator.Options> options = new ArrayList<>();
072                options.add(CqlTranslator.Options.EnableAnnotations);
073                options.add(CqlTranslator.Options.EnableLocators);
074                options.add(CqlTranslator.Options.DisableListDemotion);
075                options.add(CqlTranslator.Options.DisableListPromotion);
076                options.add(CqlTranslator.Options.DisableMethodInvocation);
077                CqlTranslator translator;
078                try {
079                        translator = CqlTranslator.fromStream(cqlStream, modelManager, libraryManager,
080                                options.toArray(new CqlTranslator.Options[options.size()]));
081                } catch (IOException e) {
082                        throw new IllegalArgumentException(Msg.code(1661) + String.format("Errors occurred translating library: %s", e.getMessage()));
083                }
084
085                return translator;
086        }
087
088        public static Library translateLibrary(String cql, LibraryManager libraryManager, ModelManager modelManager) {
089                return translateLibrary(new ByteArrayInputStream(cql.getBytes(StandardCharsets.UTF_8)), libraryManager,
090                        modelManager);
091        }
092
093        public static Library translateLibrary(InputStream cqlStream, LibraryManager libraryManager,
094                                                                                                                ModelManager modelManager) {
095                CqlTranslator translator = getTranslator(cqlStream, libraryManager, modelManager);
096                return readLibrary(new ByteArrayInputStream(translator.toXml().getBytes(StandardCharsets.UTF_8)));
097        }
098
099        public static Library translateLibrary(CqlTranslator translator) {
100                return readLibrary(new ByteArrayInputStream(translator.toXml().getBytes(StandardCharsets.UTF_8)));
101        }
102}