diff --git a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/BQTableSchemaToProtoDescriptor.java b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/BQTableSchemaToProtoDescriptor.java index 7073cfbe64..3eed1bfc35 100644 --- a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/BQTableSchemaToProtoDescriptor.java +++ b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/BQTableSchemaToProtoDescriptor.java @@ -20,6 +20,7 @@ import com.google.common.collect.ImmutableMap; import com.google.protobuf.DescriptorProtos.DescriptorProto; import com.google.protobuf.DescriptorProtos.FieldDescriptorProto; +import com.google.protobuf.DescriptorProtos.FieldOptions; import com.google.protobuf.DescriptorProtos.FileDescriptorProto; import com.google.protobuf.Descriptors; import com.google.protobuf.Descriptors.Descriptor; @@ -92,7 +93,11 @@ private static Descriptor convertBQTableSchemaToProtoDescriptorImpl( List fields = new ArrayList(); int index = 1; for (TableFieldSchema BQTableField : BQTableSchema.getFieldsList()) { - String currentScope = scope + "__" + BQTableField.getName(); + String scopeName = + BigQuerySchemaUtil.isProtoCompatible(BQTableField.getName()) + ? BQTableField.getName() + : BigQuerySchemaUtil.generatePlaceholderFieldName(BQTableField.getName()); + String currentScope = scope + "__" + scopeName; if (BQTableField.getType() == TableFieldSchema.Type.STRUCT) { ImmutableList fieldList = ImmutableList.copyOf(BQTableField.getFieldsList()); @@ -137,19 +142,26 @@ private static FieldDescriptorProto convertBQTableFieldToProtoField( TableFieldSchema BQTableField, int index, String scope) { TableFieldSchema.Mode mode = BQTableField.getMode(); String fieldName = BQTableField.getName().toLowerCase(); + + FieldDescriptorProto.Builder fieldDescriptor = + FieldDescriptorProto.newBuilder() + .setName(fieldName) + .setNumber(index) + .setLabel((FieldDescriptorProto.Label) BQTableSchemaModeMap.get(mode)); + if (BQTableField.getType() == TableFieldSchema.Type.STRUCT) { - return FieldDescriptorProto.newBuilder() - .setName(fieldName) - .setTypeName(scope) - .setLabel((FieldDescriptorProto.Label) BQTableSchemaModeMap.get(mode)) - .setNumber(index) - .build(); + fieldDescriptor.setTypeName(scope); + } else { + fieldDescriptor.setType( + (FieldDescriptorProto.Type) BQTableSchemaTypeMap.get(BQTableField.getType())); + } + + // Sets columnName annotation when field name is not proto comptaible. + if (!BigQuerySchemaUtil.isProtoCompatible(fieldName)) { + fieldDescriptor.setName(BigQuerySchemaUtil.generatePlaceholderFieldName(fieldName)); + fieldDescriptor.setOptions( + FieldOptions.newBuilder().setExtension(AnnotationsProto.columnName, fieldName).build()); } - return FieldDescriptorProto.newBuilder() - .setName(fieldName) - .setType((FieldDescriptorProto.Type) BQTableSchemaTypeMap.get(BQTableField.getType())) - .setLabel((FieldDescriptorProto.Label) BQTableSchemaModeMap.get(mode)) - .setNumber(index) - .build(); + return fieldDescriptor.build(); } } diff --git a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/BigQuerySchemaUtil.java b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/BigQuerySchemaUtil.java new file mode 100644 index 0000000000..c64fa340c0 --- /dev/null +++ b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/BigQuerySchemaUtil.java @@ -0,0 +1,67 @@ +/* + * Copyright 2020 Google LLC + * + * 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 + * + * https://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 com.google.cloud.bigquery.storage.v1; + +import com.google.protobuf.Descriptors.FieldDescriptor; +import java.nio.charset.StandardCharsets; +import java.util.Base64; +import java.util.regex.Pattern; + +public class BigQuerySchemaUtil { + + private static final String PROTO_COMPATIBLE_NAME_REGEXP = "[A-Za-z_][A-Za-z0-9_]*"; + private static final String PLACEHOLDER_FILED_NAME_PREFIX = "col_"; + private static final Pattern PROTO_COMPATIBLE_NAME_PATTERN = + Pattern.compile(PROTO_COMPATIBLE_NAME_REGEXP); + + /** + * * Checks if the field name is compatible with proto field naming convention. + * + * @param fieldName name for the field + * @return true if the field name is comptaible with proto naming convention, otherwise, returns + * false. + */ + public static boolean isProtoCompatible(String fieldName) { + return PROTO_COMPATIBLE_NAME_PATTERN.matcher(fieldName).matches(); + } + + /** + * * Generates a placeholder name that consists of a prefix + base64 encoded field name. We + * replace all dashes with underscores as they are not allowed for proto field names. + * + * @param fieldName name for the field + * @return the generated placeholder field name + */ + public static String generatePlaceholderFieldName(String fieldName) { + return PLACEHOLDER_FILED_NAME_PREFIX + + Base64.getUrlEncoder() + .withoutPadding() + .encodeToString(fieldName.getBytes(StandardCharsets.UTF_8)) + .replace('-', '_'); + } + + /** + * * Gets the user-facing field name from the descriptor + * + * @param fieldDescriptor + * @return columnName annotation if present, otherwise return the field name. + */ + public static String getFieldName(FieldDescriptor fieldDescriptor) { + return fieldDescriptor.getOptions().hasExtension(AnnotationsProto.columnName) + ? fieldDescriptor.getOptions().getExtension(AnnotationsProto.columnName) + : fieldDescriptor.getName(); + } +} diff --git a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/JsonToProtoMessage.java b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/JsonToProtoMessage.java index 3f7a135ce6..50b4a9d105 100644 --- a/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/JsonToProtoMessage.java +++ b/google-cloud-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/JsonToProtoMessage.java @@ -197,9 +197,15 @@ private static DynamicMessage convertJsonToProtoMessageImpl( String jsonName = jsonNames[i]; // We want lowercase here to support case-insensitive data writes. // The protobuf descriptor that is used is assumed to have all lowercased fields - String jsonLowercaseName = jsonName.toLowerCase(); + String jsonFieldLocator = jsonName.toLowerCase(); + + // If jsonName is not compatible with proto naming convention, we should look by its + // placeholder name. + if (!BigQuerySchemaUtil.isProtoCompatible(jsonFieldLocator)) { + jsonFieldLocator = BigQuerySchemaUtil.generatePlaceholderFieldName(jsonFieldLocator); + } String currentScope = jsonScope + "." + jsonName; - FieldDescriptor field = protoSchema.findFieldByName(jsonLowercaseName); + FieldDescriptor field = protoSchema.findFieldByName(jsonFieldLocator); if (field == null && !ignoreUnknownFields) { throw new Exceptions.JsonDataHasUnknownFieldException(currentScope); } else if (field == null) { @@ -209,7 +215,7 @@ private static DynamicMessage convertJsonToProtoMessageImpl( if (tableSchema != null) { // protoSchema is generated from tableSchema so their field ordering should match. fieldSchema = tableSchema.get(field.getIndex()); - if (!fieldSchema.getName().toLowerCase().equals(field.getName())) { + if (!fieldSchema.getName().toLowerCase().equals(BigQuerySchemaUtil.getFieldName(field))) { throw new ValidationException( "Field at index " + field.getIndex() diff --git a/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/BQTableSchemaToProtoDescriptorTest.java b/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/BQTableSchemaToProtoDescriptorTest.java index 2d55ddf3d6..c59c1397b1 100644 --- a/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/BQTableSchemaToProtoDescriptorTest.java +++ b/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/BQTableSchemaToProtoDescriptorTest.java @@ -107,7 +107,7 @@ public void testSimpleTypes() throws Exception { @Test public void testStructSimple() throws Exception { - final TableFieldSchema StringType = + final TableFieldSchema stringType = TableFieldSchema.newBuilder() .setType(TableFieldSchema.Type.STRING) .setMode(TableFieldSchema.Mode.NULLABLE) @@ -118,7 +118,7 @@ public void testStructSimple() throws Exception { .setType(TableFieldSchema.Type.STRUCT) .setMode(TableFieldSchema.Mode.NULLABLE) .setName("test_field_type") - .addFields(0, StringType) + .addFields(0, stringType) .build(); final TableSchema tableSchema = TableSchema.newBuilder().addFields(0, tableFieldSchema).build(); final Descriptor descriptor = @@ -509,4 +509,32 @@ public void testDescriptorReuseDuringCreation() throws Exception { assertEquals(descriptorToCount.get("root__reuse_lvl1__reuse_lvl2").intValue(), 3); isDescriptorEqual(descriptor, ReuseRoot.getDescriptor()); } + + @Test + public void testNestedFlexibleFieldName() throws Exception { + final TableFieldSchema stringField = + TableFieldSchema.newBuilder() + .setType(TableFieldSchema.Type.STRING) + .setMode(TableFieldSchema.Mode.NULLABLE) + .setName("str-列") + .build(); + final TableFieldSchema intField = + TableFieldSchema.newBuilder() + .setType(TableFieldSchema.Type.INT64) + .setMode(TableFieldSchema.Mode.NULLABLE) + .setName("int-列") + .build(); + final TableFieldSchema nestedField = + TableFieldSchema.newBuilder() + .setType(TableFieldSchema.Type.STRUCT) + .setMode(TableFieldSchema.Mode.NULLABLE) + .setName("nested-列") + .addFields(0, intField) + .build(); + final TableSchema tableSchema = + TableSchema.newBuilder().addFields(0, stringField).addFields(1, nestedField).build(); + final Descriptor descriptor = + BQTableSchemaToProtoDescriptor.convertBQTableSchemaToProtoDescriptor(tableSchema); + isDescriptorEqual(descriptor, TestNestedFlexibleFieldName.getDescriptor()); + } } diff --git a/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/BigQuerySchemaUtilTest.java b/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/BigQuerySchemaUtilTest.java new file mode 100644 index 0000000000..da8f229833 --- /dev/null +++ b/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/BigQuerySchemaUtilTest.java @@ -0,0 +1,64 @@ +/* + * Copyright 2020 Google LLC + * + * 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 + * + * https://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 com.google.cloud.bigquery.storage.v1; + +import com.google.cloud.bigquery.storage.test.SchemaTest.TestNestedFlexibleFieldName; +import com.google.protobuf.Descriptors.Descriptor; +import java.util.Arrays; +import java.util.List; +import junit.framework.TestCase; +import org.junit.Test; +import org.junit.runner.RunWith; +import org.junit.runners.JUnit4; + +@RunWith(JUnit4.class) +public class BigQuerySchemaUtilTest extends TestCase { + + @Test + public void testIsProtoCompatible() { + List protoCompatibleNames = Arrays.asList("col_1", "name", "_0_"); + List protoIncompatibleNames = Arrays.asList("0_col", "()", "列", "a-1"); + protoCompatibleNames.stream() + .forEach( + name -> { + assertTrue(BigQuerySchemaUtil.isProtoCompatible(name)); + }); + protoIncompatibleNames.stream() + .forEach( + name -> { + assertFalse(BigQuerySchemaUtil.isProtoCompatible(name)); + }); + } + + public void testGeneratePlaceholderFieldName() { + assertEquals("col_c3RyLeWIlw", BigQuerySchemaUtil.generatePlaceholderFieldName("str-列")); + // Base64 url encodes "~/~/" to "fi9-Lw", we replaced - with _ to be proto compatible. + assertEquals("col_fi9_Lw", BigQuerySchemaUtil.generatePlaceholderFieldName("~/~/")); + } + + public void testGetFieldName() { + // Test get name from annotations. + Descriptor flexibleDescriptor = TestNestedFlexibleFieldName.getDescriptor(); + assertEquals("str-列", BigQuerySchemaUtil.getFieldName(flexibleDescriptor.getFields().get(0))); + assertEquals( + "nested-列", BigQuerySchemaUtil.getFieldName(flexibleDescriptor.getFields().get(1))); + + // Test get name without annotations. + Descriptor descriptor = TestNestedFlexibleFieldName.getDescriptor(); + assertEquals("int32_value", BigQuerySchemaUtil.getFieldName(descriptor.getFields().get(0))); + assertEquals("int64_value", BigQuerySchemaUtil.getFieldName(descriptor.getFields().get(1))); + } +} diff --git a/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonStreamWriterTest.java b/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonStreamWriterTest.java index 71b2bee1d6..d4c5614e3e 100644 --- a/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonStreamWriterTest.java +++ b/google-cloud-bigquerystorage/src/test/java/com/google/cloud/bigquery/storage/v1/JsonStreamWriterTest.java @@ -30,6 +30,7 @@ import com.google.api.gax.grpc.testing.MockServiceHelper; import com.google.cloud.bigquery.storage.test.JsonTest; import com.google.cloud.bigquery.storage.test.SchemaTest; +import com.google.cloud.bigquery.storage.test.Test.FlexibleType; import com.google.cloud.bigquery.storage.test.Test.FooType; import com.google.cloud.bigquery.storage.test.Test.UpdatedFooType; import com.google.cloud.bigquery.storage.v1.Exceptions.AppendSerializtionError; @@ -212,6 +213,54 @@ public void testSingleAppendSimpleJson() throws Exception { } } + @Test + public void testFlexibleColumnAppend() throws Exception { + TableFieldSchema field = + TableFieldSchema.newBuilder() + .setType(TableFieldSchema.Type.STRING) + .setMode(TableFieldSchema.Mode.NULLABLE) + .setName("test-列") + .build(); + TableSchema tableSchema = TableSchema.newBuilder().addFields(0, field).build(); + FlexibleType expectedProto = FlexibleType.newBuilder().setColDGVzdC3LiJc("allen").build(); + JSONObject flexible = new JSONObject(); + flexible.put("test-列", "allen"); + JSONArray jsonArr = new JSONArray(); + jsonArr.put(flexible); + + try (JsonStreamWriter writer = + getTestJsonStreamWriterBuilder(TEST_STREAM, tableSchema).setTraceId("test:empty").build()) { + + testBigQueryWrite.addResponse( + AppendRowsResponse.newBuilder() + .setAppendResult( + AppendRowsResponse.AppendResult.newBuilder().setOffset(Int64Value.of(0)).build()) + .build()); + + ApiFuture appendFuture = writer.append(jsonArr); + assertEquals(0L, appendFuture.get().getAppendResult().getOffset().getValue()); + appendFuture.get(); + assertEquals( + 1, + testBigQueryWrite + .getAppendRequests() + .get(0) + .getProtoRows() + .getRows() + .getSerializedRowsCount()); + assertEquals( + testBigQueryWrite + .getAppendRequests() + .get(0) + .getProtoRows() + .getRows() + .getSerializedRows(0), + expectedProto.toByteString()); + assertEquals( + testBigQueryWrite.getAppendRequests().get(0).getTraceId(), "JsonWriter_test:empty"); + } + } + @Test public void testSpecialTypeAppend() throws Exception { TableFieldSchema field = diff --git a/google-cloud-bigquerystorage/src/test/proto/schemaTest.proto b/google-cloud-bigquerystorage/src/test/proto/schemaTest.proto index 3ec935d6a6..1d43e094cd 100644 --- a/google-cloud-bigquerystorage/src/test/proto/schemaTest.proto +++ b/google-cloud-bigquerystorage/src/test/proto/schemaTest.proto @@ -2,6 +2,8 @@ syntax = "proto2"; package com.google.cloud.bigquery.storage.test; +import "google/cloud/bigquery/storage/v1/annotations.proto"; + message SupportedTypes { optional int32 int32_value = 1; optional int64 int64_value = 2; @@ -257,3 +259,15 @@ message AllowUnknownUnsupportedFields { message FakeFooType { optional int32 foo = 1; } + +message TestNestedFlexibleFieldName { + optional string col_c3RyLeWIlw = 1 + [(.google.cloud.bigquery.storage.v1.column_name) = "str-列"]; + optional FlexibleNameField col_bmVzdGVkLeWIlw = 2 + [(.google.cloud.bigquery.storage.v1.column_name) = "nested-列"]; +} + +message FlexibleNameField { + optional int64 col_aW50LeWIlw = 1 + [(.google.cloud.bigquery.storage.v1.column_name) = "int-列"]; +} \ No newline at end of file diff --git a/google-cloud-bigquerystorage/src/test/proto/test.proto b/google-cloud-bigquerystorage/src/test/proto/test.proto index 18c00aab5c..cb060779dc 100644 --- a/google-cloud-bigquerystorage/src/test/proto/test.proto +++ b/google-cloud-bigquerystorage/src/test/proto/test.proto @@ -17,6 +17,8 @@ syntax = "proto2"; package com.google.cloud.bigquery.storage.test; +import "google/cloud/bigquery/storage/v1/annotations.proto"; + enum TestEnum { TestEnum0 = 0; TestEnum1 = 1; @@ -80,3 +82,8 @@ message DuplicateType { optional ComplicateType f3 = 3; optional ComplicateType f4 = 4; } + +message FlexibleType { + optional string col_dGVzdC3liJc = 1 + [(.google.cloud.bigquery.storage.v1.column_name) = "test-列"]; +}