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Posted to commits@beam.apache.org by ro...@apache.org on 2016/10/27 17:28:01 UTC

[13/50] [abbrv] incubator-beam git commit: Encode bundle elements in the DirectRunner

Encode bundle elements in the DirectRunner

This ensures that any changes that are caused when an element is encoded
and decoded is caught within the pipeline.


Project: http://git-wip-us.apache.org/repos/asf/incubator-beam/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-beam/commit/2ceaa3ef
Tree: http://git-wip-us.apache.org/repos/asf/incubator-beam/tree/2ceaa3ef
Diff: http://git-wip-us.apache.org/repos/asf/incubator-beam/diff/2ceaa3ef

Branch: refs/heads/python-sdk
Commit: 2ceaa3effa8a6d9de3753a05db9d1648e8eed576
Parents: c03e3e9
Author: Thomas Groh <tg...@google.com>
Authored: Tue Sep 20 11:43:40 2016 -0700
Committer: Thomas Groh <tg...@google.com>
Committed: Tue Oct 25 11:03:43 2016 -0700

----------------------------------------------------------------------
 .../runners/direct/CloningBundleFactory.java    |  98 ++++++++++
 .../beam/runners/direct/DirectRunner.java       |   5 +-
 .../direct/ImmutableListBundleFactory.java      |   4 +-
 .../direct/CloningBundleFactoryTest.java        | 177 +++++++++++++++++++
 .../EncodabilityEnforcementFactoryTest.java     |   6 +-
 5 files changed, 285 insertions(+), 5 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/2ceaa3ef/runners/direct-java/src/main/java/org/apache/beam/runners/direct/CloningBundleFactory.java
----------------------------------------------------------------------
diff --git a/runners/direct-java/src/main/java/org/apache/beam/runners/direct/CloningBundleFactory.java b/runners/direct-java/src/main/java/org/apache/beam/runners/direct/CloningBundleFactory.java
new file mode 100644
index 0000000..33241e3
--- /dev/null
+++ b/runners/direct-java/src/main/java/org/apache/beam/runners/direct/CloningBundleFactory.java
@@ -0,0 +1,98 @@
+/*
+ * 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.runners.direct;
+
+import org.apache.beam.runners.direct.DirectRunner.CommittedBundle;
+import org.apache.beam.runners.direct.DirectRunner.UncommittedBundle;
+import org.apache.beam.sdk.coders.Coder;
+import org.apache.beam.sdk.coders.CoderException;
+import org.apache.beam.sdk.util.CoderUtils;
+import org.apache.beam.sdk.util.UserCodeException;
+import org.apache.beam.sdk.util.WindowedValue;
+import org.apache.beam.sdk.values.PCollection;
+import org.joda.time.Instant;
+
+/**
+ * A {@link BundleFactory} where a created {@link UncommittedBundle} clones all elements added to it
+ * using the coder of the {@link PCollection}.
+ */
+class CloningBundleFactory implements BundleFactory {
+  private static final CloningBundleFactory INSTANCE = new CloningBundleFactory();
+
+  public static CloningBundleFactory create() {
+    return INSTANCE;
+  }
+
+  private final ImmutableListBundleFactory underlying;
+  private CloningBundleFactory() {
+    this.underlying = ImmutableListBundleFactory.create();
+  }
+
+  @Override
+  public <T> UncommittedBundle<T> createRootBundle() {
+    // The DirectRunner is responsible for these elements, but they need not be encodable.
+    return underlying.createRootBundle();
+  }
+
+  @Override
+  public <T> UncommittedBundle<T> createBundle(
+      PCollection<T> output) {
+    return new CloningBundle<>(underlying.createBundle(output));
+  }
+
+  @Override
+  public <K, T> UncommittedBundle<T> createKeyedBundle(
+      StructuralKey<K> key, PCollection<T> output) {
+    return new CloningBundle<>(underlying.createKeyedBundle(key, output));
+  }
+
+  private static class CloningBundle<T> implements UncommittedBundle<T> {
+    private final UncommittedBundle<T> underlying;
+    private final Coder<T> coder;
+
+    private CloningBundle(UncommittedBundle<T> underlying) {
+      this.underlying = underlying;
+      this.coder = underlying.getPCollection().getCoder();
+    }
+
+    @Override
+    public PCollection<T> getPCollection() {
+      return underlying.getPCollection();
+    }
+
+    @Override
+    public UncommittedBundle<T> add(WindowedValue<T> element) {
+      try {
+        // Use the cloned value to ensure that if the coder behaves poorly (e.g. a NoOpCoder that
+        // does not expect to be used) that is reflected in the values given to downstream
+        // transforms
+        WindowedValue<T> clone = element.withValue(CoderUtils.clone(coder, element.getValue()));
+        underlying.add(clone);
+      } catch (CoderException e) {
+        throw UserCodeException.wrap(e);
+      }
+      return this;
+    }
+
+    @Override
+    public CommittedBundle<T> commit(Instant synchronizedProcessingTime) {
+      return underlying.commit(synchronizedProcessingTime);
+    }
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/2ceaa3ef/runners/direct-java/src/main/java/org/apache/beam/runners/direct/DirectRunner.java
----------------------------------------------------------------------
diff --git a/runners/direct-java/src/main/java/org/apache/beam/runners/direct/DirectRunner.java b/runners/direct-java/src/main/java/org/apache/beam/runners/direct/DirectRunner.java
index b79a42f..e02c8a6 100644
--- a/runners/direct-java/src/main/java/org/apache/beam/runners/direct/DirectRunner.java
+++ b/runners/direct-java/src/main/java/org/apache/beam/runners/direct/DirectRunner.java
@@ -319,7 +319,10 @@ public class DirectRunner
   }
 
   private BundleFactory createBundleFactory(DirectOptions pipelineOptions) {
-    BundleFactory bundleFactory = ImmutableListBundleFactory.create();
+    BundleFactory bundleFactory =
+        pipelineOptions.isEnforceEncodability()
+            ? CloningBundleFactory.create()
+            : ImmutableListBundleFactory.create();
     if (pipelineOptions.isEnforceImmutability()) {
       bundleFactory = ImmutabilityCheckingBundleFactory.create(bundleFactory);
     }

http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/2ceaa3ef/runners/direct-java/src/main/java/org/apache/beam/runners/direct/ImmutableListBundleFactory.java
----------------------------------------------------------------------
diff --git a/runners/direct-java/src/main/java/org/apache/beam/runners/direct/ImmutableListBundleFactory.java b/runners/direct-java/src/main/java/org/apache/beam/runners/direct/ImmutableListBundleFactory.java
index db92542..abc6dd8 100644
--- a/runners/direct-java/src/main/java/org/apache/beam/runners/direct/ImmutableListBundleFactory.java
+++ b/runners/direct-java/src/main/java/org/apache/beam/runners/direct/ImmutableListBundleFactory.java
@@ -32,8 +32,10 @@ import org.joda.time.Instant;
  * A factory that produces bundles that perform no additional validation.
  */
 class ImmutableListBundleFactory implements BundleFactory {
+  private static final ImmutableListBundleFactory FACTORY = new ImmutableListBundleFactory();
+
   public static ImmutableListBundleFactory create() {
-    return new ImmutableListBundleFactory();
+    return FACTORY;
   }
 
   private ImmutableListBundleFactory() {}

http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/2ceaa3ef/runners/direct-java/src/test/java/org/apache/beam/runners/direct/CloningBundleFactoryTest.java
----------------------------------------------------------------------
diff --git a/runners/direct-java/src/test/java/org/apache/beam/runners/direct/CloningBundleFactoryTest.java b/runners/direct-java/src/test/java/org/apache/beam/runners/direct/CloningBundleFactoryTest.java
new file mode 100644
index 0000000..03846d9
--- /dev/null
+++ b/runners/direct-java/src/test/java/org/apache/beam/runners/direct/CloningBundleFactoryTest.java
@@ -0,0 +1,177 @@
+/*
+ * 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.runners.direct;
+
+import static org.hamcrest.Matchers.anyOf;
+import static org.hamcrest.Matchers.containsInAnyOrder;
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.isA;
+import static org.hamcrest.Matchers.not;
+import static org.hamcrest.Matchers.theInstance;
+import static org.junit.Assert.assertThat;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Iterables;
+import org.apache.beam.runners.direct.DirectRunner.CommittedBundle;
+import org.apache.beam.runners.direct.DirectRunner.UncommittedBundle;
+import org.apache.beam.runners.direct.EncodabilityEnforcementFactoryTest.Record;
+import org.apache.beam.runners.direct.EncodabilityEnforcementFactoryTest.RecordNoDecodeCoder;
+import org.apache.beam.runners.direct.EncodabilityEnforcementFactoryTest.RecordNoEncodeCoder;
+import org.apache.beam.sdk.coders.CoderException;
+import org.apache.beam.sdk.coders.KvCoder;
+import org.apache.beam.sdk.coders.StringUtf8Coder;
+import org.apache.beam.sdk.coders.VarIntCoder;
+import org.apache.beam.sdk.testing.TestPipeline;
+import org.apache.beam.sdk.transforms.Create;
+import org.apache.beam.sdk.transforms.GroupByKey;
+import org.apache.beam.sdk.transforms.WithKeys;
+import org.apache.beam.sdk.util.UserCodeException;
+import org.apache.beam.sdk.util.WindowedValue;
+import org.apache.beam.sdk.values.KV;
+import org.apache.beam.sdk.values.PCollection;
+import org.hamcrest.Matchers;
+import org.joda.time.Instant;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/**
+ * Tests for {@link CloningBundleFactory}.
+ */
+@RunWith(JUnit4.class)
+public class CloningBundleFactoryTest {
+  @Rule public ExpectedException thrown = ExpectedException.none();
+  private CloningBundleFactory factory = CloningBundleFactory.create();
+
+  @Test
+  public void rootBundleSucceedsIgnoresCoder() {
+    WindowedValue<Record> one = WindowedValue.valueInGlobalWindow(new Record());
+    WindowedValue<Record> two = WindowedValue.valueInGlobalWindow(new Record());
+    CommittedBundle<Record> root =
+        factory.<Record>createRootBundle().add(one).add(two).commit(Instant.now());
+
+    assertThat(root.getElements(), containsInAnyOrder(one, two));
+  }
+
+  @Test
+  public void bundleWorkingCoderSucceedsClonesOutput() {
+    TestPipeline p = TestPipeline.create();
+    PCollection<Integer> created = p.apply(Create.of(1, 3).withCoder(VarIntCoder.of()));
+    PCollection<KV<String, Integer>> kvs =
+        created
+            .apply(WithKeys.<String, Integer>of("foo"))
+            .setCoder(KvCoder.of(StringUtf8Coder.of(), VarIntCoder.of()));
+    WindowedValue<KV<String, Integer>> fooOne = WindowedValue.valueInGlobalWindow(KV.of("foo", 1));
+    WindowedValue<KV<String, Integer>> fooThree =
+        WindowedValue.valueInGlobalWindow(KV.of("foo", 3));
+    CommittedBundle<KV<String, Integer>> bundle =
+        factory.createBundle(kvs).add(fooOne).add(fooThree).commit(Instant.now());
+
+    assertThat(bundle.getElements(), containsInAnyOrder(fooOne, fooThree));
+    assertThat(
+        bundle.getElements(), not(containsInAnyOrder(theInstance(fooOne), theInstance(fooThree))));
+    for (WindowedValue<KV<String, Integer>> foo : bundle.getElements()) {
+      assertThat(
+          foo.getValue(),
+          not(anyOf(theInstance(fooOne.getValue()), theInstance(fooThree.getValue()))));
+    }
+    assertThat(bundle.getPCollection(), equalTo(kvs));
+  }
+
+  @Test
+  public void keyedBundleWorkingCoderSucceedsClonesOutput() {
+    TestPipeline p = TestPipeline.create();
+    PCollection<Integer> created = p.apply(Create.of(1, 3).withCoder(VarIntCoder.of()));
+
+    PCollection<KV<String, Iterable<Integer>>> keyed =
+        created
+            .apply(WithKeys.<String, Integer>of("foo"))
+            .setCoder(KvCoder.of(StringUtf8Coder.of(), VarIntCoder.of()))
+            .apply(GroupByKey.<String, Integer>create());
+    WindowedValue<KV<String, Iterable<Integer>>> foos =
+        WindowedValue.valueInGlobalWindow(
+            KV.<String, Iterable<Integer>>of("foo", ImmutableList.of(1, 3)));
+    CommittedBundle<KV<String, Iterable<Integer>>> keyedBundle =
+        factory
+            .createKeyedBundle(StructuralKey.of("foo", StringUtf8Coder.of()), keyed)
+            .add(foos)
+            .commit(Instant.now());
+
+    assertThat(keyedBundle.getElements(), containsInAnyOrder(foos));
+    assertThat(
+        Iterables.getOnlyElement(keyedBundle.getElements()).getValue(),
+        not(theInstance(foos.getValue())));
+    assertThat(keyedBundle.getPCollection(), equalTo(keyed));
+    assertThat(
+        keyedBundle.getKey(),
+        Matchers.<StructuralKey<?>>equalTo(StructuralKey.of("foo", StringUtf8Coder.of())));
+  }
+
+  @Test
+  public void bundleEncodeFailsAddFails() {
+    TestPipeline p = TestPipeline.create();
+    PCollection<Record> pc = p.apply(Create.<Record>of().withCoder(new RecordNoEncodeCoder()));
+    UncommittedBundle<Record> bundle = factory.createBundle(pc);
+
+    thrown.expect(UserCodeException.class);
+    thrown.expectCause(isA(CoderException.class));
+    thrown.expectMessage("Encode not allowed");
+    bundle.add(WindowedValue.valueInGlobalWindow(new Record()));
+  }
+
+  @Test
+  public void bundleDecodeFailsAddFails() {
+    TestPipeline p = TestPipeline.create();
+    PCollection<Record> pc = p.apply(Create.<Record>of().withCoder(new RecordNoDecodeCoder()));
+    UncommittedBundle<Record> bundle = factory.createBundle(pc);
+
+    thrown.expect(UserCodeException.class);
+    thrown.expectCause(isA(CoderException.class));
+    thrown.expectMessage("Decode not allowed");
+    bundle.add(WindowedValue.valueInGlobalWindow(new Record()));
+  }
+
+  @Test
+  public void keyedBundleEncodeFailsAddFails() {
+    TestPipeline p = TestPipeline.create();
+    PCollection<Record> pc = p.apply(Create.<Record>of().withCoder(new RecordNoEncodeCoder()));
+    UncommittedBundle<Record> bundle =
+        factory.createKeyedBundle(StructuralKey.of("foo", StringUtf8Coder.of()), pc);
+
+    thrown.expect(UserCodeException.class);
+    thrown.expectCause(isA(CoderException.class));
+    thrown.expectMessage("Encode not allowed");
+    bundle.add(WindowedValue.valueInGlobalWindow(new Record()));
+  }
+
+  @Test
+  public void keyedBundleDecodeFailsAddFails() {
+    TestPipeline p = TestPipeline.create();
+    PCollection<Record> pc = p.apply(Create.<Record>of().withCoder(new RecordNoDecodeCoder()));
+    UncommittedBundle<Record> bundle =
+        factory.createKeyedBundle(StructuralKey.of("foo", StringUtf8Coder.of()), pc);
+
+    thrown.expect(UserCodeException.class);
+    thrown.expectCause(isA(CoderException.class));
+    thrown.expectMessage("Decode not allowed");
+    bundle.add(WindowedValue.valueInGlobalWindow(new Record()));
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-beam/blob/2ceaa3ef/runners/direct-java/src/test/java/org/apache/beam/runners/direct/EncodabilityEnforcementFactoryTest.java
----------------------------------------------------------------------
diff --git a/runners/direct-java/src/test/java/org/apache/beam/runners/direct/EncodabilityEnforcementFactoryTest.java b/runners/direct-java/src/test/java/org/apache/beam/runners/direct/EncodabilityEnforcementFactoryTest.java
index e62bf01..e6bdbd0 100644
--- a/runners/direct-java/src/test/java/org/apache/beam/runners/direct/EncodabilityEnforcementFactoryTest.java
+++ b/runners/direct-java/src/test/java/org/apache/beam/runners/direct/EncodabilityEnforcementFactoryTest.java
@@ -208,8 +208,8 @@ public class EncodabilityEnforcementFactoryTest {
         Collections.<CommittedBundle<?>>emptyList());
   }
 
-  private static class Record {}
-  private static class RecordNoEncodeCoder extends AtomicCoder<Record> {
+  static class Record {}
+  static class RecordNoEncodeCoder extends AtomicCoder<Record> {
 
     @Override
     public void encode(
@@ -228,7 +228,7 @@ public class EncodabilityEnforcementFactoryTest {
     }
   }
 
-  private static class RecordNoDecodeCoder extends AtomicCoder<Record> {
+  static class RecordNoDecodeCoder extends AtomicCoder<Record> {
     @Override
     public void encode(
         Record value,