9308

Build # 9308

Build Type

push

jenkins

Committed by GitHub

Commit Message

<a href="https://github.com/apache/carbondata/commit/<a class=hub.com/apache/carbondata/commit/b965e4063b286f2c974bd180ce9a9dedddb01e60">b965e4063<a href="https://github.com/apache/carbondata/commit/b965e4063b286f2c974bd180ce9a9dedddb01e60">">Merge </a><a class="double-link" href="https://github.com/apache/carbondata/commit/<a class="double-link" href="https://github.com/apache/carbondata/commit/d44e063f0e8a48932730a2f0a3dd476b6706489f">d44e063f0</a>">d44e063f0</a><a href="https://github.com/apache/carbondata/commit/b965e4063b286f2c974bd180ce9a9dedddb01e60"> into 3d3b6ff16">3d3b6ff16</a>

Run Details

13 of 13 new or added lines in 2 files covered. (100.0%)

60769 of 76323 relevant lines covered (79.62%)

1.05 hits per line

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96.97

/store/sdk/src/main/java/org/apache/carbondata/sdk/file/CarbonReader.java

/*
 * 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.carbondata.sdk.file;

import java.io.IOException;
import java.util.List;
import java.util.UUID;

import org.apache.carbondata.common.annotations.InterfaceAudience;
import org.apache.carbondata.common.annotations.InterfaceStability;
import org.apache.carbondata.core.util.CarbonTaskInfo;
import org.apache.carbondata.core.util.CarbonUtil;
import org.apache.carbondata.core.util.ThreadLocalTaskInfo;

import org.apache.hadoop.mapreduce.RecordReader;


/**
 * Reader for carbondata file
 */
@InterfaceAudience.User
@InterfaceStability.Evolving
public class CarbonReader<T> {

  private List<RecordReader<Void, T>> readers;

  private RecordReader<Void, T> currentReader;

  private int index;

  private boolean initialise;

  /**
   * Call {@link #builder(String)} to construct an instance
   */
  CarbonReader(List<RecordReader<Void, T>> readers) {
    if (readers.size() == 0) {
      throw new IllegalArgumentException("no reader");
    }
    this.initialise = true;
    this.readers = readers;
    this.index = 0;
    this.currentReader = readers.get(0);
    CarbonTaskInfo carbonTaskInfo = new CarbonTaskInfo();
    carbonTaskInfo.setTaskId(CarbonUtil.generateUUID());
    ThreadLocalTaskInfo.setCarbonTaskInfo(carbonTaskInfo);
  }

  /**
   * Return true if has next row
   */
  public boolean hasNext() throws IOException, InterruptedException {
    validateReader();
    if (currentReader.nextKeyValue()) {
      return true;
    } else {
      if (index == readers.size() - 1) {
        // no more readers
        return false;
      } else {
        index++;
        // current reader is closed
        currentReader.close();
        currentReader = readers.get(index);
        return currentReader.nextKeyValue();
      }
    }
  }

  /**
   * Read and return next row object
   */
  public T readNextRow() throws IOException, InterruptedException {
    validateReader();
    return currentReader.getCurrentValue();
  }

  /**
   * Return a new {@link CarbonReaderBuilder} instance
   *
   * @param tablePath table store path
   * @param tableName table name
   * @return CarbonReaderBuilder object
   */
  public static CarbonReaderBuilder builder(String tablePath, String tableName) {
    return new CarbonReaderBuilder(tablePath, tableName);
  }

  /**
   * Return a new {@link CarbonReaderBuilder} instance
   * Default value of table name is table + tablePath + time
   *
   * @param tablePath table path
   * @return CarbonReaderBuilder object
   */
  public static CarbonReaderBuilder builder(String tablePath) {
    UUID uuid = UUID.randomUUID();
    String tableName = "UnknownTable" + uuid;
    return builder(tablePath, tableName);
  }

  /**
   * Close reader
   *
   * @throws IOException
   */
  public void close() throws IOException {
    validateReader();
    this.currentReader.close();
    this.initialise = false;
  }

  /**
   * Validate the reader
   */
  private void validateReader() {
    if (!this.initialise) {
      throw new RuntimeException(this.getClass().getSimpleName() +
          " not initialise, please create it first.");
    }
  }
}

1	/*
2	* Licensed to the Apache Software Foundation (ASF) under one or more
3	* contributor license agreements. See the NOTICE file distributed with
4	* this work for additional information regarding copyright ownership.
5	* The ASF licenses this file to You under the Apache License, Version 2.0
6	* (the "License"); you may not use this file except in compliance with
7	* the License. You may obtain a copy of the License at
8	*
9	* http://www.apache.org/licenses/LICENSE-2.0
10	*
11	* Unless required by applicable law or agreed to in writing, software
12	* distributed under the License is distributed on an "AS IS" BASIS,
13	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14	* See the License for the specific language governing permissions and
15	* limitations under the License.
16	*/
17
18	package org.apache.carbondata.sdk.file;
19
20	import java.io.IOException;
21	import java.util.List;
22	import java.util.UUID;
23
24	import org.apache.carbondata.common.annotations.InterfaceAudience;
25	import org.apache.carbondata.common.annotations.InterfaceStability;
26	import org.apache.carbondata.core.util.CarbonTaskInfo;
27	import org.apache.carbondata.core.util.CarbonUtil;
28	import org.apache.carbondata.core.util.ThreadLocalTaskInfo;
29
30	import org.apache.hadoop.mapreduce.RecordReader;
31
32
33	/**
34	* Reader for carbondata file
35	*/
36	@InterfaceAudience.User
37	@InterfaceStability.Evolving
38	public class CarbonReader<T> {
39
40	private List<RecordReader<Void, T>> readers;
41
42	private RecordReader<Void, T> currentReader;
43
44	private int index;
45
46	private boolean initialise;
47
48	/**
49	* Call {@link #builder(String)} to construct an instance
50	*/
51	CarbonReader(List<RecordReader<Void, T>> readers) {	2✔
52	if (readers.size() == 0) {	2✔
53	throw new IllegalArgumentException("no reader");	×
54	}
55	this.initialise = true;	2✔
56	this.readers = readers;	2✔
57	this.index = 0;	2✔
58	this.currentReader = readers.get(0);	2✔
59	CarbonTaskInfo carbonTaskInfo = new CarbonTaskInfo();	2✔
60	carbonTaskInfo.setTaskId(CarbonUtil.generateUUID());	2✔
61	ThreadLocalTaskInfo.setCarbonTaskInfo(carbonTaskInfo);	2✔
62	}	2✔
63
64	/**
65	* Return true if has next row
66	*/
67	public boolean hasNext() throws IOException, InterruptedException {
68	validateReader();	2✔
69	if (currentReader.nextKeyValue()) {	2✔
70	return true;	2✔
71	} else {
72	if (index == readers.size() - 1) {	2✔
73	// no more readers
74	return false;	2✔
75	} else {
76	index++;	2✔
77	// current reader is closed
78	currentReader.close();	2✔
79	currentReader = readers.get(index);	2✔
80	return currentReader.nextKeyValue();	2✔
81	}
82	}
83	}
84
85	/**
86	* Read and return next row object
87	*/
88	public T readNextRow() throws IOException, InterruptedException {
89	validateReader();	2✔
90	return currentReader.getCurrentValue();	2✔
91	}
92
93	/**
94	* Return a new {@link CarbonReaderBuilder} instance
95	*
96	* @param tablePath table store path
97	* @param tableName table name
98	* @return CarbonReaderBuilder object
99	*/
100	public static CarbonReaderBuilder builder(String tablePath, String tableName) {
101	return new CarbonReaderBuilder(tablePath, tableName);	2✔
102	}
103
104	/**
105	* Return a new {@link CarbonReaderBuilder} instance
106	* Default value of table name is table + tablePath + time
107	*
108	* @param tablePath table path
109	* @return CarbonReaderBuilder object
110	*/
111	public static CarbonReaderBuilder builder(String tablePath) {
112	UUID uuid = UUID.randomUUID();	2✔
113	String tableName = "UnknownTable" + uuid;	2✔
114	return builder(tablePath, tableName);	2✔
115	}
116
117	/**
118	* Close reader
119	*
120	* @throws IOException
121	*/
122	public void close() throws IOException {
123	validateReader();	2✔
124	this.currentReader.close();	2✔
125	this.initialise = false;	2✔
126	}	2✔
127
128	/**
129	* Validate the reader
130	*/
131	private void validateReader() {
132	if (!this.initialise) {	2✔
133	throw new RuntimeException(this.getClass().getSimpleName() +	2✔
134	" not initialise, please create it first.");
135	}
136	}	2✔
137	}

apache / carbondata / 9308

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