beam-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From GitBox <...@apache.org>
Subject [GitHub] [beam] kanterov commented on a change in pull request #11074: Store logical type values in Row instead of base values
Date Mon, 23 Mar 2020 16:34:06 GMT
kanterov commented on a change in pull request #11074: Store logical type values in Row instead
of base values
URL: https://github.com/apache/beam/pull/11074#discussion_r396588436
 
 

 ##########
 File path: sdks/java/core/src/main/java/org/apache/beam/sdk/schemas/SchemaCoderHelpers.java
 ##########
 @@ -0,0 +1,168 @@
+/*
+ * 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.beam.sdk.schemas;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import org.apache.beam.sdk.coders.BigDecimalCoder;
+import org.apache.beam.sdk.coders.BigEndianShortCoder;
+import org.apache.beam.sdk.coders.BooleanCoder;
+import org.apache.beam.sdk.coders.ByteArrayCoder;
+import org.apache.beam.sdk.coders.ByteCoder;
+import org.apache.beam.sdk.coders.Coder;
+import org.apache.beam.sdk.coders.CoderException;
+import org.apache.beam.sdk.coders.DoubleCoder;
+import org.apache.beam.sdk.coders.FloatCoder;
+import org.apache.beam.sdk.coders.InstantCoder;
+import org.apache.beam.sdk.coders.IterableCoder;
+import org.apache.beam.sdk.coders.ListCoder;
+import org.apache.beam.sdk.coders.MapCoder;
+import org.apache.beam.sdk.coders.NullableCoder;
+import org.apache.beam.sdk.coders.StringUtf8Coder;
+import org.apache.beam.sdk.coders.VarIntCoder;
+import org.apache.beam.sdk.coders.VarLongCoder;
+import org.apache.beam.sdk.schemas.Schema.FieldType;
+import org.apache.beam.sdk.schemas.Schema.LogicalType;
+import org.apache.beam.sdk.schemas.Schema.TypeName;
+import org.apache.beam.sdk.util.common.ElementByteSizeObserver;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableMap;
+import org.joda.time.ReadableInstant;
+
+class SchemaCoderHelpers {
+  // This contains a map of primitive types to their coders.
+  private static final Map<TypeName, Coder> CODER_MAP =
+      ImmutableMap.<TypeName, Coder>builder()
+          .put(TypeName.BYTE, ByteCoder.of())
+          .put(TypeName.BYTES, ByteArrayCoder.of())
+          .put(TypeName.INT16, BigEndianShortCoder.of())
+          .put(TypeName.INT32, VarIntCoder.of())
+          .put(TypeName.INT64, VarLongCoder.of())
+          .put(TypeName.DECIMAL, BigDecimalCoder.of())
+          .put(TypeName.FLOAT, FloatCoder.of())
+          .put(TypeName.DOUBLE, DoubleCoder.of())
+          .put(TypeName.STRING, StringUtf8Coder.of())
+          .put(TypeName.DATETIME, InstantCoder.of())
+          .put(TypeName.BOOLEAN, BooleanCoder.of())
+          .build();
+
+  private static class LogicalTypeCoder<InputT, BaseT> extends Coder<InputT>
{
+    private final LogicalType<InputT, BaseT> logicalType;
+    private final Coder<BaseT> baseTypeCoder;
+    private final boolean isDateTime;
+
+    LogicalTypeCoder(LogicalType<InputT, BaseT> logicalType, Coder baseTypeCoder) {
+      this.logicalType = logicalType;
+      this.baseTypeCoder = baseTypeCoder;
+      this.isDateTime = logicalType.getBaseType().equals(FieldType.DATETIME);
+    }
+
+    @Override
+    public void encode(InputT value, OutputStream outStream) throws CoderException, IOException
{
+      BaseT baseType = logicalType.toBaseType(value);
+      if (isDateTime) {
+        baseType = (BaseT) ((ReadableInstant) baseType).toInstant();
 
 Review comment:
   Thanks. Makes sense. Agree that DateTime types need to be redone.

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services

Mime
View raw message