forked from cwensel/cascading
/
TapPlatformTest.java
373 lines (256 loc) · 13.3 KB
/
TapPlatformTest.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
/*
* Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
*
* Project and contact information: http://www.cascading.org/
*
* This file is part of the Cascading project.
*
* 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 cascading.tap;
import java.io.IOException;
import java.io.Serializable;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
import cascading.PlatformTestCase;
import cascading.TestBuffer;
import cascading.flow.Flow;
import cascading.flow.FlowDef;
import cascading.operation.Identity;
import cascading.operation.regex.RegexSplitter;
import cascading.pipe.Each;
import cascading.pipe.Every;
import cascading.pipe.GroupBy;
import cascading.pipe.Pipe;
import cascading.tap.partition.DelimitedPartition;
import cascading.tap.partition.Partition;
import cascading.tuple.Fields;
import cascading.tuple.Tuple;
import cascading.tuple.TupleEntryIterator;
import cascading.tuple.TupleEntrySchemeIteratorProps;
import org.junit.Test;
import static data.InputData.*;
/**
*
*/
public class TapPlatformTest extends PlatformTestCase implements Serializable
{
public TapPlatformTest()
{
super( true, 4, 1 );
}
@Test
public void testSinkDeclaredFields() throws IOException
{
getPlatform().copyFromLocal( inputFileCross );
Tap source = getPlatform().getTextFile( new Fields( "line" ), inputFileCross );
Pipe pipe = new Pipe( "test" );
pipe = new Each( pipe, new RegexSplitter( new Fields( "first", "second", "third" ), "\\s" ), Fields.ALL );
Tap sink = getPlatform().getTextFile( new Fields( "line" ), new Fields( "second", "first", "third" ), getOutputPath( "declaredsinks" ), SinkMode.REPLACE );
Flow flow = getPlatform().getFlowConnector().connect( source, sink, pipe );
flow.complete();
validateLength( flow, 37, null );
TupleEntryIterator iterator = flow.openSink();
String line = iterator.next().getString( 0 );
assertTrue( "not equal: wrong values", line.matches( "[a-z]\t[0-9]\t[A-Z]" ) );
iterator.close();
}
@Test
public void testSinkUnknown() throws IOException
{
getPlatform().copyFromLocal( inputFileCross );
Tap source = getPlatform().getTextFile( new Fields( "line" ), inputFileCross );
Pipe pipe = new Pipe( "test" );
pipe = new Each( pipe, new RegexSplitter( new Fields( "first", "second", "third" ), "\\s" ), Fields.RESULTS );
Tap sink = getPlatform().getTabDelimitedFile( Fields.UNKNOWN, getOutputPath( "unknownsinks" ), SinkMode.REPLACE );
Flow flow = getPlatform().getFlowConnector().connect( source, sink, pipe );
flow.complete();
validateLength( flow, 37, null );
TupleEntryIterator iterator = flow.openSink();
String line = iterator.next().getTuple().toString();
assertTrue( "not equal: wrong values: " + line, line.matches( "[0-9]\t[a-z]\t[A-Z]" ) );
iterator.close();
}
@Test
public void testMultiSinkTap() throws IOException
{
getPlatform().copyFromLocal( inputFileJoined );
Tap source = getPlatform().getTextFile( new Fields( "line" ), inputFileJoined );
Pipe pipe = new Pipe( "test" );
pipe = new Each( pipe, new RegexSplitter( new Fields( "number", "lower", "upper" ), "\t" ) );
Tap lhsSink = getPlatform().getTextFile( new Fields( "offset", "line" ), new Fields( "number", "lower" ), getOutputPath( "multisink/lhs" ), SinkMode.REPLACE );
Tap rhsSink = getPlatform().getTextFile( new Fields( "offset", "line" ), new Fields( "number", "upper" ), getOutputPath( "/multisink/rhs" ), SinkMode.REPLACE );
Tap sink = new MultiSinkTap( lhsSink, rhsSink );
Flow flow = getPlatform().getFlowConnector().connect( source, sink, pipe );
flow.complete();
validateLength( flow.openTapForRead( lhsSink ), 5 );
validateLength( flow.openTapForRead( rhsSink ), 5 );
}
@Test
public void testMultiSourceIterator() throws Exception
{
getPlatform().copyFromLocal( inputFileLower );
getPlatform().copyFromLocal( inputFileUpper );
Tap sourceLower = getPlatform().getTextFile( new Fields( "offset", "line" ), inputFileLower );
Tap sourceUpper = getPlatform().getTextFile( new Fields( "offset", "line" ), inputFileUpper );
Tap source = new MultiSourceTap( sourceLower, sourceUpper );
validateLength( source.openForRead( getPlatform().getFlowProcess() ), 10 );
}
@Test
public void testTemplateTap() throws IOException
{
getPlatform().copyFromLocal( inputFileJoined );
Tap source = getPlatform().getTextFile( new Fields( "line" ), inputFileJoined );
Pipe pipe = new Pipe( "test" );
pipe = new Each( pipe, new RegexSplitter( new Fields( "number", "lower", "upper" ), "\t" ) );
Tap sink = getPlatform().getTextFile( getOutputPath( "testtemplates" ), SinkMode.REPLACE );
sink = getPlatform().getTemplateTap( sink, "%s-%s", 1 );
Flow flow = getPlatform().getFlowConnector().connect( source, sink, pipe );
flow.complete();
Tap test = getPlatform().getTextFile( sink.getIdentifier().toString() + "/1-a" );
validateLength( flow.openTapForRead( test ), 1 );
test = getPlatform().getTextFile( sink.getIdentifier().toString() + "/2-b" );
validateLength( flow.openTapForRead( test ), 1 );
if( getPlatform().isMapReduce() )
{
String stringPath = sink.getIdentifier().toString() + "/1-a/" + getPlatform().getHiddenTemporaryPath();
assertFalse( flow.resourceExists( getPlatform().getTextFile( stringPath ) ) );
stringPath = sink.getIdentifier().toString() + "/2-b/" + getPlatform().getHiddenTemporaryPath();
assertFalse( flow.resourceExists( getPlatform().getTextFile( stringPath ) ) );
}
}
@Test
public void testTemplateTapTextDelimited() throws IOException
{
getPlatform().copyFromLocal( inputFileJoined );
Tap source = getPlatform().getTextFile( new Fields( "line" ), inputFileJoined );
Pipe pipe = new Pipe( "test" );
pipe = new Each( pipe, new RegexSplitter( new Fields( "number", "lower", "upper" ), "\t" ) );
Tap sink = getPlatform().getDelimitedFile( new Fields( "number", "lower", "upper" ), "+", getOutputPath( "testdelimitedtemplates" ), SinkMode.REPLACE );
sink = getPlatform().getTemplateTap( sink, "%s-%s", 1 );
Flow flow = getPlatform().getFlowConnector().connect( source, sink, pipe );
flow.complete();
Tap test = getPlatform().getTextFile( new Fields( "line" ), sink.getIdentifier().toString() + "/1-a" );
validateLength( flow.openTapForRead( test ), 1, Pattern.compile( "[0-9]\\+[a-z]\\+[A-Z]" ) );
test = getPlatform().getTextFile( new Fields( "line" ), sink.getIdentifier().toString() + "/2-b" );
validateLength( flow.openTapForRead( test ), 1, Pattern.compile( "[0-9]\\+[a-z]\\+[A-Z]" ) );
}
@Test
public void testTemplateTapView() throws IOException
{
getPlatform().copyFromLocal( inputFileJoined );
Tap source = getPlatform().getTextFile( new Fields( "line" ), inputFileJoined );
Pipe pipe = new Pipe( "test" );
pipe = new Each( pipe, new RegexSplitter( new Fields( "number", "lower", "upper" ), "\t" ) );
Tap sink = getPlatform().getTabDelimitedFile( new Fields( "upper" ), getOutputPath( "testtemplatesview" ), SinkMode.REPLACE );
sink = getPlatform().getTemplateTap( sink, "%s-%s", new Fields( "number", "lower" ), 1 );
Flow flow = getPlatform().getFlowConnector().connect( source, sink, pipe );
flow.complete();
Tap test = getPlatform().getTabDelimitedFile( new Fields( "upper" ), sink.getIdentifier().toString() + "/1-a", SinkMode.KEEP );
validateLength( flow.openTapForRead( test ), 1, 1 );
test = getPlatform().getTabDelimitedFile( new Fields( "upper" ), sink.getIdentifier().toString() + "/2-b", SinkMode.KEEP );
validateLength( flow.openTapForRead( test ), 1, 1 );
TupleEntryIterator input = flow.openTapForRead( test ); // open 2-b
assertEquals( "wrong value", "B", input.next().getObject( 0 ) );
input.close();
}
@Test
public void testSideFileCollector() throws Exception
{
getPlatform().copyFromLocal( inputFileLhs );
Tap source = getPlatform().getTextFile( inputFileLhs );
Tap sink = getPlatform().getTextFile( new Fields( "line" ), getOutputPath( "sidefile/direct" ), SinkMode.REPLACE );
Tap sideFile = getPlatform().getTextFile( new Fields( "line" ), getOutputPath( "sidefile/indirect" ), SinkMode.REPLACE );
Pipe pipe = new Pipe( "test" );
pipe = new Each( pipe, new Fields( "line" ), new RegexSplitter( new Fields( "num", "lower" ), "\\s" ) );
pipe = new GroupBy( pipe, new Fields( "num" ) );
pipe = new Every( pipe, new TestBuffer( sideFile, new Fields( "next" ), 2, true, true, "next" ) );
Flow flow = getPlatform().getFlowConnector().connect( source, sink, pipe );
flow.complete();
validateLength( flow, 23, null );
List<Tuple> results = getSinkAsList( flow );
assertTrue( results.contains( new Tuple( "1\tnull\tnext" ) ) );
assertTrue( results.contains( new Tuple( "1\ta\tnext" ) ) );
assertTrue( results.contains( new Tuple( "1\tb\tnext" ) ) );
assertTrue( results.contains( new Tuple( "1\tc\tnext" ) ) );
assertTrue( results.contains( new Tuple( "1\tnull\tnext" ) ) );
results = asList( flow, sideFile );
assertEquals( 13, results.size() );
assertTrue( results.contains( new Tuple( "1\ta" ) ) );
assertTrue( results.contains( new Tuple( "1\tb" ) ) );
assertTrue( results.contains( new Tuple( "1\tc" ) ) );
}
@Test
public void testPartitionTapTextDelimited() throws IOException
{
getPlatform().copyFromLocal( inputFileCrossX2 );
Tap source = getPlatform().getDelimitedFile( new Fields( "number", "lower", "upper" ), " ", inputFileCrossX2 );
Tap partitionTap = getPlatform().getDelimitedFile( new Fields( "upper" ), "+", getOutputPath( getTestName() + "/partitioned" ), SinkMode.REPLACE );
Partition partition = new DelimitedPartition( new Fields( "lower", "number" ) );
partitionTap = getPlatform().getPartitionTap( partitionTap, partition, 1 );
Flow firstFlow = getPlatform().getFlowConnector().connect( source, partitionTap, new Pipe( "partition" ) );
firstFlow.complete();
Tap sink = getPlatform().getDelimitedFile( new Fields( "number", "lower", "upper" ), "+", getOutputPath( getTestName() + "/final" ), SinkMode.REPLACE );
Flow secondFlow = getPlatform().getFlowConnector().connect( partitionTap, sink, new Pipe( "copy" ) );
secondFlow.complete();
Tap test = getPlatform().getTextFile( new Fields( "line" ), partitionTap.getIdentifier().toString() + "/a/1" );
validateLength( firstFlow.openTapForRead( test ), 6, Pattern.compile( "[A-Z]" ) );
test = getPlatform().getTextFile( new Fields( "line" ), partitionTap.getIdentifier().toString() + "/b/2" );
validateLength( firstFlow.openTapForRead( test ), 6, Pattern.compile( "[A-Z]" ) );
List<Tuple> tuples = asList( firstFlow, partitionTap );
assertTrue( tuples.contains( new Tuple( "A", "a", "1" ) ) );
assertTrue( tuples.contains( new Tuple( "B", "b", "2" ) ) );
test = getPlatform().getTextFile( new Fields( "line" ), sink.getIdentifier() );
validateLength( secondFlow.openTapForRead( test ), 74, Pattern.compile( "[0-9]\\+[a-z]\\+[A-Z]" ) );
}
@Test
public void testTupleEntrySchemeIteratorExceptionHandling() throws IOException
{
if( getPlatformName().equals( "local" ) )
return; // no gzip support
getPlatform().copyFromLocal( inputFileUnexpectedEndOfFile );
Tap source = getPlatform().getTextFile( inputFileUnexpectedEndOfFile );
Tap sink = getPlatform().getTextFile( getOutputPath( getTestName() ), SinkMode.REPLACE );
Map<Object, Object> properties = getProperties();
TupleEntrySchemeIteratorProps.setPermittedExceptions( properties, java.io.EOFException.class );
Pipe pipe = new Pipe( "data" );
pipe = new Each( pipe, new Identity() );
FlowDef flowDef = FlowDef.flowDef().addSource( pipe, source ).addTailSink( pipe, sink );
Flow flow = getPlatform().getFlowConnector( properties ).connect( flowDef );
flow.complete();
validateLength( flow.openSink(), 307 );
}
@Test
public void testTupleEntrySchemeIteratorEOFException() throws IOException
{
if( getPlatformName().equals( "local" ) )
return; // no gzip support
getPlatform().copyFromLocal( inputFileUnexpectedEndOfFile );
Tap source = getPlatform().getTextFile( inputFileUnexpectedEndOfFile );
Tap sink = getPlatform().getTextFile( getOutputPath( getTestName() ), SinkMode.REPLACE );
Pipe pipe = new Pipe( "data" );
pipe = new Each( pipe, new Identity() );
FlowDef flowDef = FlowDef.flowDef().addSource( pipe, source ).addTailSink( pipe, sink );
Flow flow = getPlatform().getFlowConnector().connect( flowDef );
try
{
flow.complete();
fail( "flow should have thrown an Exception" );
}
catch( Exception exception )
{
// ignore
}
}
}