added validation command

java/cli/src/main/java/org/brapi/schematools/cli/BrAPICommand.java

@@ -4,10 +4,13 @@
 
 @CommandLine.Command(
     name = "brapi",
+    description = "Command line tools for the BrAPI JSON schema, see the sub-commands for details",
+    version = "0.0.2",
+    footer = "Copyright (c) 2024 The Breeding API",
     subcommands = {
+        ValidateSubCommand.class,
         GenerateSubCommand.class
     },
-    version = "1.0",
     mixinStandardHelpOptions = true
 )
 public class BrAPICommand {

java/cli/src/main/java/org/brapi/schematools/cli/GenerateSubCommand.java

@@ -23,13 +23,14 @@
 import java.util.List;
 
 @CommandLine.Command(
-    name = "generate", mixinStandardHelpOptions = true
+    name = "generate", mixinStandardHelpOptions = true,
+    description = "Generates the OpenAPI Specification or GraphQL Schema from a BrAPI JSON schema"
 )
 public class GenerateSubCommand implements Runnable {
 
     private static final OutputFormat DEFAULT_FORMAT = OutputFormat.OPEN_API;
 
-    @CommandLine.Parameters(index = "0", description = "The directory containing the BrAPI json schema")
+    @CommandLine.Parameters(index = "0", description = "The directory containing the BrAPI JSON schema")
     private Path schemaDirectory;
 
     @CommandLine.Option(names = {"-l", "--language"}, defaultValue = "GRAPHQL", fallbackValue = "OPEN_API", description = "The format of the Output. Possible options are: ${COMPLETION-CANDIDATES}. Default is ${DEFAULT_FORMAT}")
@@ -105,7 +106,12 @@ private void outputIntrospectionSchema(GraphQLSchema schema) {
     }
 
     private void printGraphQLSchemaErrors(Response<GraphQLSchema> response) {
-        System.err.printf("There were %d errors generating the GraphQL Schema:%n", response.getAllErrors().size());
+        if (response.getAllErrors().size() == 1) {
+            System.err.printf("There was 1 error generating the GraphQL Schema:%n");
+        } else {
+            System.err.printf("There were %d errors generating the GraphQL Schema:%n", response.getAllErrors().size());
+        }
+
         response.getAllErrors().forEach(this::printError);
     }
 
@@ -151,7 +157,12 @@ private void outputOpenAPISpecification(OpenAPI specification, Path outputPathFi
     }
 
     private void printOpenAPISpecificationErrors(Response<List<OpenAPI>> response) {
-        System.err.println("There were errors generating the OpenAPI Specification:");
+        if (response.getAllErrors().size() == 1) {
+            System.err.printf("There was 1 error generating the OpenAPI Specification:%n");
+        } else {
+            System.err.printf("There were %d errors generating the OpenAPI Specification:%n", response.getAllErrors().size());
+        }
+
         response.getAllErrors().forEach(this::printError);
     }
 

java/cli/src/main/java/org/brapi/schematools/cli/ValidateSubCommand.java

@@ -0,0 +1,75 @@
+package org.brapi.schematools.cli;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import graphql.ExecutionResult;
+import graphql.GraphQL;
+import graphql.introspection.IntrospectionQuery;
+import graphql.schema.GraphQLSchema;
+import graphql.schema.idl.SchemaPrinter;
+import io.swagger.v3.core.util.Json31;
+import io.swagger.v3.oas.models.OpenAPI;
+import org.brapi.schematools.core.brapischema.BrAPISchemaReader;
+import org.brapi.schematools.core.brapischema.BrAPISchemaReaderException;
+import org.brapi.schematools.core.graphql.GraphQLGenerator;
+import org.brapi.schematools.core.graphql.options.GraphQLGeneratorOptions;
+import org.brapi.schematools.core.model.BrAPIClass;
+import org.brapi.schematools.core.openapi.OpenAPIGenerator;
+import org.brapi.schematools.core.openapi.options.OpenAPIGeneratorOptions;
+import org.brapi.schematools.core.response.Response;
+import picocli.CommandLine;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+
+@CommandLine.Command(
+    name = "validate", mixinStandardHelpOptions = true,
+    description = "Validates the BrAPI JSON schema"
+)
+public class ValidateSubCommand implements Runnable {
+
+    @CommandLine.Parameters(index = "0", description = "The directory containing the BrAPI JSON schema")
+    private Path schemaDirectory;
+
+    @Override
+    public void run() {
+        BrAPISchemaReader schemaReader = new BrAPISchemaReader() ;
+
+        try {
+            schemaReader.readDirectories(schemaDirectory)
+                    .onFailDoWithResponse(this::printErrors)
+                    .onSuccessDo(() -> System.out.println("The BrAPI JSON schema is valid"));
+        } catch (BrAPISchemaReaderException e) {
+            System.out.println(e.getMessage());
+        }
+
+    }
+
+    private void printErrors(Response<List<BrAPIClass>> response) {
+        if (response.getAllErrors().size() == 1) {
+            System.err.printf("There was 1 error validating the JSON Schema:%n");
+        } else {
+            System.err.printf("There were %d errors validating the JSON Schema:%n", response.getAllErrors().size());
+        }
+
+        response.getAllErrors().forEach(this::printError);
+    }
+
+    private void printError(Response.Error error) {
+        switch (error.getType()) {
+
+            case VALIDATION -> {
+                System.err.print("Validation Error :");
+            }
+            case PERMISSION, OTHER -> {
+                System.err.print("Error :");
+            }
+        }
+        System.err.print('\t');
+
+        System.err.println(error.getMessage());
+    }
+}