[
https://issues.apache.org/jira/browse/BEAM-6054?focusedWorklogId=165436&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-165436
]
ASF GitHub Bot logged work on BEAM-6054:
----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Nov/18 13:52
Start Date: 13/Nov/18 13:52
Worklog Time Spent: 10m
Work Description: VaclavPlajt commented on a change in pull request
#7019: [BEAM-6054] Euphoria translation providers refactored.
URL: https://github.com/apache/beam/pull/7019#discussion_r233044954
##########
File path:
sdks/java/extensions/euphoria/src/main/java/org/apache/beam/sdk/extensions/euphoria/core/translate/provider/GenericTranslatorProvider.java
##########
@@ -0,0 +1,246 @@
+/*
+ * 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.euphoria.core.translate.provider;
+
+import static java.util.Objects.requireNonNull;
+
+import com.google.common.base.Preconditions;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import java.util.function.Predicate;
+import
org.apache.beam.sdk.extensions.euphoria.core.client.operator.CompositeOperator;
+import org.apache.beam.sdk.extensions.euphoria.core.client.operator.FlatMap;
+import org.apache.beam.sdk.extensions.euphoria.core.client.operator.Join;
+import
org.apache.beam.sdk.extensions.euphoria.core.client.operator.ReduceByKey;
+import org.apache.beam.sdk.extensions.euphoria.core.client.operator.Union;
+import
org.apache.beam.sdk.extensions.euphoria.core.client.operator.base.Operator;
+import
org.apache.beam.sdk.extensions.euphoria.core.translate.CompositeOperatorTranslator;
+import
org.apache.beam.sdk.extensions.euphoria.core.translate.FlatMapTranslator;
+import org.apache.beam.sdk.extensions.euphoria.core.translate.JoinTranslator;
+import
org.apache.beam.sdk.extensions.euphoria.core.translate.OperatorTranslator;
+import
org.apache.beam.sdk.extensions.euphoria.core.translate.ReduceByKeyTranslator;
+import
org.apache.beam.sdk.extensions.euphoria.core.translate.TranslatorProvider;
+import org.apache.beam.sdk.extensions.euphoria.core.translate.UnionTranslator;
+
+/**
+ * Adjustable {@link TranslatorProvider} that selects first suitable
translation for the registered
+ * operator.
+ *
+ * <p>{@link OperatorTranslator Translators} can be added by calling variants
of {@link
+ * GenericTranslatorProvider.Builder#register(Class, OperatorTranslator)
register} method during
+ * build. Order of registration is important. Building is started by {@link
#newBuilder()}.
+ */
+public class GenericTranslatorProvider implements TranslatorProvider {
Review comment:
sure
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Issue Time Tracking
-------------------
Worklog Id: (was: 165436)
Time Spent: 2h (was: 1h 50m)
> Refactor traslator providers
> -----------------------------
>
> Key: BEAM-6054
> URL: https://issues.apache.org/jira/browse/BEAM-6054
> Project: Beam
> Issue Type: Sub-task
> Components: dsl-euphoria
> Reporter: Vaclav Plajt
> Assignee: Vaclav Plajt
> Priority: Major
> Time Spent: 2h
> Remaining Estimate: 0h
>
> We need following functionality:
> 1. Way of registering translator providers for operator type with optional
> user-defined predicate
> 1. Way of registering translator providers for any operator based on
> predicate. (e.g `CompositeOperatorTranslator`)
> 1. Way of chaining translator providers
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