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https://issues.apache.org/jira/browse/BEAM-7274?focusedWorklogId=274270&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-274270
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ASF GitHub Bot logged work on BEAM-7274:
----------------------------------------
Author: ASF GitHub Bot
Created on: 09/Jul/19 17:50
Start Date: 09/Jul/19 17:50
Worklog Time Spent: 10m
Work Description: reuvenlax commented on pull request #8690: [BEAM-7274]
Implement the Protobuf schema provider
URL: https://github.com/apache/beam/pull/8690#discussion_r301714637
##########
File path:
sdks/java/extensions/protobuf/src/main/java/org/apache/beam/sdk/extensions/protobuf/ProtoSchemaProvider.java
##########
@@ -0,0 +1,140 @@
+/*
+ * 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.extensions.protobuf;
+
+import com.google.protobuf.Descriptors;
+import com.google.protobuf.DynamicMessage;
+import com.google.protobuf.Message;
+import java.util.HashMap;
+import java.util.Map;
+import javax.annotation.Nullable;
+import org.apache.beam.sdk.annotations.Experimental;
+import org.apache.beam.sdk.schemas.Schema;
+import org.apache.beam.sdk.schemas.SchemaCoder;
+import org.apache.beam.sdk.schemas.SchemaProvider;
+import org.apache.beam.sdk.transforms.SerializableFunction;
+import org.apache.beam.sdk.values.Row;
+import org.apache.beam.sdk.values.TypeDescriptor;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Schema provider for Protobuf messages. The provider is able to handle pre
compiled Message file
+ * without external help. For Dynamic Messages a Descriptor needs to be
registered up front on a
+ * specific URN.
+ *
+ * <p>It's possible to inherit this class for a specific implementation that
communicates with an
+ * external registry that maps those URN's with Descriptors.
+ */
+@Experimental(Experimental.Kind.SCHEMAS)
+public class ProtoSchemaProvider implements SchemaProvider {
+ private static final Logger LOG =
LoggerFactory.getLogger(ProtoSchemaProvider.class);
+
+ private static final ProtoDomain STATIC_COMPILED_DOMAIN = new ProtoDomain();
+ private ProtoDomain domain;
+ private Map<String, SchemaCoder> cache = new HashMap<>();
Review comment:
is there a reason to cache SchemaCoder here?
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Issue Time Tracking
-------------------
Worklog Id: (was: 274270)
Time Spent: 4.5h (was: 4h 20m)
> Protobuf Beam Schema support
> ----------------------------
>
> Key: BEAM-7274
> URL: https://issues.apache.org/jira/browse/BEAM-7274
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Alex Van Boxel
> Assignee: Alex Van Boxel
> Priority: Minor
> Time Spent: 4.5h
> Remaining Estimate: 0h
>
> Add support for the new Beam Schema to the Protobuf extension.
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