| // Copyright 2011 Google Inc. All Rights Reserved. |
| // |
| // 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 |
| // |
| // 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 com.google.enterprise.adaptor; |
| |
| import static org.junit.Assert.*; |
| |
| import org.junit.*; |
| import org.junit.rules.ExpectedException; |
| |
| import java.io.IOException; |
| import java.util.*; |
| |
| /** |
| * Tests for {@link TransformPipeline}. |
| */ |
| public class TransformPipelineTest { |
| @Rule |
| public ExpectedException thrown = ExpectedException.none(); |
| |
| @Test |
| public void testNoOpEmpty() throws IOException { |
| TransformPipeline pipeline = new TransformPipeline( |
| Collections.<DocumentTransform>emptyList(), Collections.<String>emptyList()); |
| Metadata metadata = new Metadata(); |
| Map<String, String> params = new HashMap<String, String>(); |
| pipeline.transform(metadata, params); |
| |
| assertEquals(new Metadata(), metadata); |
| assertEquals(Collections.emptyMap(), params); |
| } |
| |
| @Test |
| public void testNoOpWithInput() throws IOException { |
| TransformPipeline pipeline = new TransformPipeline( |
| Collections.<DocumentTransform>emptyList(), Collections.<String>emptyList()); |
| Metadata metadata = new Metadata(); |
| metadata.add("key1", "value1"); |
| Map<String, String> params = new HashMap<String, String>(); |
| params.put("key2", "value2"); |
| pipeline.transform(metadata, params); |
| |
| Metadata goldenMetadata = new Metadata(); |
| goldenMetadata.add("key1", "value1"); |
| assertEquals(goldenMetadata, metadata); |
| assertEquals(Collections.singletonMap("key2", "value2"), params); |
| } |
| |
| @Test |
| public void testAddMetadataAndParams() throws IOException { |
| Metadata metadata = new Metadata(); |
| metadata.add("key1", "value1"); |
| Map<String, String> params = new HashMap<String, String>(); |
| params.put("key2", "value2"); |
| |
| List<DocumentTransform> transforms = new ArrayList<DocumentTransform>(); |
| transforms.add(new DocumentTransform() { |
| @Override |
| public void transform(Metadata m, Map<String, String> p) { |
| m.set("newMeta", "metaValue"); |
| p.put("newKey", "newValue"); |
| } |
| }); |
| TransformPipeline pipeline = new TransformPipeline( |
| transforms, Arrays.asList("t1")); |
| pipeline.transform(metadata, params); |
| |
| assertEquals("value1", metadata.getOneValue("key1")); |
| assertEquals("metaValue", metadata.getOneValue("newMeta")); |
| assertEquals(2, metadata.getKeys().size()); |
| assertEquals("value2", params.get("key2")); |
| assertEquals("newValue", params.get("newKey")); |
| assertEquals(2, params.size()); |
| } |
| |
| private static class ErroringTransform implements DocumentTransform { |
| @Override |
| public void transform(Metadata metadata, Map<String, String> p) { |
| // Do some work, but don't complete. |
| metadata.set("trash", "value"); |
| p.put("more trash", "values"); |
| throw new RuntimeException("test exception"); |
| } |
| } |
| |
| private static class IncrementTransform implements DocumentTransform { |
| @Override |
| public void transform(Metadata metadata, Map<String, String> p) { |
| metadata.set("int", "" + (Integer.parseInt(metadata.getOneValue("int")) + 1)); |
| p.put("int", "" + (Integer.parseInt(p.get("int")) + 1)); |
| } |
| } |
| |
| private static class ProductTransform implements DocumentTransform { |
| private int factor; |
| |
| public ProductTransform(int factor) { |
| this.factor = factor; |
| } |
| |
| @Override |
| public void transform(Metadata metadata, Map<String, String> p) { |
| metadata.set("int", "" + (Integer.parseInt(metadata.getOneValue("int")) * factor)); |
| p.put("int", "" + (Integer.parseInt(p.get("int")) * factor)); |
| } |
| } |
| |
| @Test |
| public void testTransform() throws IOException { |
| TransformPipeline pipeline = new TransformPipeline( |
| Arrays.asList(new IncrementTransform()), Arrays.asList("it")); |
| Metadata metadata = new Metadata(); |
| metadata.add("int", "0"); |
| Map<String, String> params = new HashMap<String, String>(); |
| params.put("int", "1"); |
| |
| pipeline.transform(metadata, params); |
| |
| Metadata goldenMetadata = new Metadata(); |
| goldenMetadata.add("int", "1"); |
| assertEquals(goldenMetadata, metadata); |
| assertEquals(Collections.singletonMap("int", "2"), params); |
| } |
| |
| @Test |
| public void testMultipleTransforms() throws IOException { |
| TransformPipeline pipeline = new TransformPipeline(Arrays.asList( |
| new IncrementTransform(), new ProductTransform(2)), |
| Arrays.asList("it", "pt")); |
| |
| Metadata metadata = new Metadata(); |
| metadata.set("int", "0"); |
| Map<String, String> params = new HashMap<String, String>(); |
| params.put("int", "1"); |
| |
| pipeline.transform(metadata, params); |
| |
| Metadata goldenMetadata = new Metadata(); |
| goldenMetadata.set("int", "2"); |
| assertEquals(goldenMetadata, metadata); |
| assertEquals(Collections.singletonMap("int", "4"), params); |
| } |
| |
| @Test |
| public void testTransformErrorFatal() throws IOException { |
| TransformPipeline pipeline = new TransformPipeline(Arrays.asList( |
| new IncrementTransform(), new ErroringTransform()), |
| Arrays.asList("it", "et")); |
| Metadata metadata = new Metadata(); |
| metadata.set("int", "0"); |
| Map<String, String> params = new HashMap<String, String>(); |
| params.put("int", "1"); |
| |
| thrown.expect(RuntimeException.class); |
| try { |
| pipeline.transform(metadata, params); |
| } finally { |
| Metadata goldenMetadata = new Metadata(); |
| goldenMetadata.set("int", "0"); |
| assertEquals(goldenMetadata, metadata); |
| assertEquals(Collections.singletonMap("int", "1"), params); |
| } |
| } |
| } |