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
|
package com.yahoo.vespa.hosted.node.verification.spec.retrievers;
import com.yahoo.vespa.hosted.node.verification.commons.CommandExecutor;
import com.yahoo.vespa.hosted.node.verification.commons.OutputParser;
import com.yahoo.vespa.hosted.node.verification.commons.ParseInstructions;
import com.yahoo.vespa.hosted.node.verification.commons.ParseResult;
import com.yahoo.vespa.hosted.node.verification.spec.retrievers.HardwareInfo.DiskType;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Created by olaa on 30/06/2017.
*/
public class DiskRetriever implements HardwareRetriever {
private static final String DISK_CHECK_TYPE = "lsblk -d -o name,rota";
private static final String DISK_CHECK_SIZE = "df -BG | grep -v tmpfs | awk '{s+=$2} END {print s-1}'";
private static final String DISK_NAME = "sda";
private static final String DISK_TYPE_REGEX_SPLIT = "\\s+";
private static final int DISK_TYPE_SEARCH_ELEMENT_INDEX = 0;
private static final int DISK_TYPE_RETURN_ELEMENT_INDEX = 1;
private static final String DISK_SIZE_SEARCH_WORD = ".*\\d+.*";
private static final String DISK_SIZE_REGEX_SPLIT = "\\s+";
private static final int DISK_SIZE_SEARCH_ELEMENT_INDEX = 0;
private static final int DISK_SIZE_RETURN_ELEMENT_INDEX = 0;
private static final Logger logger = Logger.getLogger(DiskRetriever.class.getName());
private final HardwareInfo hardwareInfo;
private final CommandExecutor commandExecutor;
public DiskRetriever(HardwareInfo hardwareInfo, CommandExecutor commandExecutor) {
this.hardwareInfo = hardwareInfo;
this.commandExecutor = commandExecutor;
}
public void updateInfo() {
try {
updateDiskType();
updateDiskSize();
} catch (IOException e) {
logger.log(Level.WARNING, "Failed to retrieve disk info", e);
}
}
protected void updateDiskType() throws IOException {
ArrayList<String> commandOutput = commandExecutor.executeCommand(DISK_CHECK_TYPE);
ParseResult parseResult = parseDiskType(commandOutput);
setDiskType(parseResult);
}
protected void updateDiskSize() throws IOException {
ArrayList<String> commandOutput = commandExecutor.executeCommand(DISK_CHECK_SIZE);
ParseResult parseResult = parseDiskSize(commandOutput);
setDiskSize(parseResult);
}
protected ParseResult parseDiskType(ArrayList<String> commandOutput) {
ArrayList<String> searchWords = new ArrayList<>(Arrays.asList(DISK_NAME));
ParseInstructions parseInstructions = new ParseInstructions(DISK_TYPE_SEARCH_ELEMENT_INDEX, DISK_TYPE_RETURN_ELEMENT_INDEX, DISK_TYPE_REGEX_SPLIT, searchWords);
return OutputParser.parseSingleOutput(parseInstructions, commandOutput);
}
protected void setDiskType(ParseResult parseResult) {
hardwareInfo.setDiskType(DiskType.UNKNOWN);
if (!parseResult.getSearchWord().equals(DISK_NAME)) {
return;
}
String fastDiskSymbol = "0";
String nonFastDiskSymbol = "1";
if (parseResult.getValue().equals(fastDiskSymbol)) {
hardwareInfo.setDiskType(DiskType.FAST);
} else if (parseResult.getValue().equals(nonFastDiskSymbol)) {
hardwareInfo.setDiskType(DiskType.SLOW);
}
}
protected ParseResult parseDiskSize(ArrayList<String> commandOutput) {
ArrayList<String> searchWords = new ArrayList<>(Arrays.asList(DISK_SIZE_SEARCH_WORD));
ParseInstructions parseInstructions = new ParseInstructions(DISK_SIZE_SEARCH_ELEMENT_INDEX, DISK_SIZE_RETURN_ELEMENT_INDEX, DISK_SIZE_REGEX_SPLIT, searchWords);
return OutputParser.parseSingleOutput(parseInstructions, commandOutput);
}
protected void setDiskSize(ParseResult parseResult) {
try {
String sizeValue = parseResult.getValue().replaceAll("[^\\d.]", "");
double diskSize = Double.parseDouble(sizeValue);
hardwareInfo.setMinDiskAvailableGb(diskSize);
} catch (NumberFormatException | NullPointerException e) {
return;
}
}
}
|
