Feat/ig install (#601)

* Added IG operation providers for run time installation of IG's

* Refactored conditions for enabling the provider

* Refactoring

* Disable it by default in config as well

* document package install feature

---------

Co-authored-by: Jose Costa Teixeira <jose.a.teixeira@gmail.com>

src/main/java/ca/uhn/fhir/jpa/starter/ig/IImplementationGuideOperationProvider.java

@@ -0,0 +1,18 @@
+package ca.uhn.fhir.jpa.starter.ig;
+
+import ca.uhn.fhir.jpa.packages.PackageInstallationSpec;
+import org.hl7.fhir.utilities.npm.NpmPackage;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+
+public interface IImplementationGuideOperationProvider {
+	static PackageInstallationSpec toPackageInstallationSpec(byte[] npmPackageAsByteArray) throws IOException {
+		NpmPackage npmPackage = NpmPackage.fromPackage(new ByteArrayInputStream(npmPackageAsByteArray));
+		return new PackageInstallationSpec().setName(npmPackage.name()).setPackageContents(npmPackageAsByteArray).setVersion(npmPackage.version()).setInstallMode(PackageInstallationSpec.InstallModeEnum.STORE_AND_INSTALL).setFetchDependencies(false);
+	}
+
+	//The following declaration is the one that counts but cannot be used across different versions as stating Base64BinaryType would bind to a separate version
+	//@Operation(name = "$install", typeName = "ImplementationGuide")
+	//Parameters install(@OperationParam(name = "npmContent",min = 1, max = 1) Base64BinaryType implementationGuide);
+}

src/main/java/ca/uhn/fhir/jpa/starter/ig/IgConfigCondition.java

@@ -0,0 +1,14 @@
+package ca.uhn.fhir.jpa.starter.ig;
+
+import org.springframework.context.annotation.Condition;
+import org.springframework.context.annotation.ConditionContext;
+import org.springframework.core.type.AnnotatedTypeMetadata;
+
+public class IgConfigCondition implements Condition {
+
+	@Override
+	public boolean matches(ConditionContext theConditionContext, AnnotatedTypeMetadata theAnnotatedTypeMetadata) {
+		String property = theConditionContext.getEnvironment().getProperty("hapi.fhir.ig_runtime_upload_enabled");
+		return Boolean.parseBoolean(property);
+	}
+}

src/main/java/ca/uhn/fhir/jpa/starter/ig/ImplementationGuideR4OperationProvider.java

@@ -0,0 +1,35 @@
+package ca.uhn.fhir.jpa.starter.ig;
+
+import ca.uhn.fhir.jpa.packages.IPackageInstallerSvc;
+import ca.uhn.fhir.jpa.starter.annotations.OnR4Condition;
+import ca.uhn.fhir.rest.annotation.Operation;
+import ca.uhn.fhir.rest.annotation.OperationParam;
+import org.hl7.fhir.r4.model.Base64BinaryType;
+import org.hl7.fhir.r4.model.Parameters;
+import org.springframework.context.annotation.Conditional;
+import org.springframework.stereotype.Service;
+
+import java.io.IOException;
+
+@Conditional({OnR4Condition.class, IgConfigCondition.class})
+@Service
+public class ImplementationGuideR4OperationProvider implements IImplementationGuideOperationProvider {
+
+	IPackageInstallerSvc packageInstallerSvc;
+
+	public ImplementationGuideR4OperationProvider(IPackageInstallerSvc packageInstallerSvc) {
+		this.packageInstallerSvc = packageInstallerSvc;
+	}
+
+	@Operation(name = "$install", typeName = "ImplementationGuide")
+	public Parameters install(@OperationParam(name = "npmContent", min = 1, max = 1) Base64BinaryType implementationGuide) {
+		try {
+
+			packageInstallerSvc.install(IImplementationGuideOperationProvider.toPackageInstallationSpec(implementationGuide.getValue()));
+		} catch (IOException e) {
+			throw new RuntimeException(e);
+		}
+		return new Parameters();
+	}
+
+}

src/main/java/ca/uhn/fhir/jpa/starter/ig/ImplementationGuideR5OperationProvider.java

@@ -0,0 +1,36 @@
+package ca.uhn.fhir.jpa.starter.ig;
+
+import ca.uhn.fhir.jpa.packages.IPackageInstallerSvc;
+import ca.uhn.fhir.jpa.starter.annotations.OnR5Condition;
+import ca.uhn.fhir.rest.annotation.Operation;
+import ca.uhn.fhir.rest.annotation.OperationParam;
+import org.hl7.fhir.r5.model.Base64BinaryType;
+import org.hl7.fhir.r5.model.Parameters;
+import org.springframework.context.annotation.Conditional;
+import org.springframework.stereotype.Service;
+
+import java.io.IOException;
+
+@Conditional({OnR5Condition.class, IgConfigCondition.class})
+@Service
+public class ImplementationGuideR5OperationProvider {
+
+	IPackageInstallerSvc packageInstallerSvc;
+
+	public ImplementationGuideR5OperationProvider(IPackageInstallerSvc packageInstallerSvc) {
+		this.packageInstallerSvc = packageInstallerSvc;
+	}
+
+	@Operation(name = "$install", typeName = "ImplementationGuide")
+	public Parameters install(@OperationParam(name = "npmContent", min = 1, max = 1) Base64BinaryType implementationGuide) {
+		try {
+
+			packageInstallerSvc.install(IImplementationGuideOperationProvider.toPackageInstallationSpec(implementationGuide.getValue()));
+		} catch (IOException e) {
+			throw new RuntimeException(e);
+		}
+		return new Parameters();
+	}
+
+
+}