Mercurial Hosting > luan
annotate src/goodjava/lucene/backup/Backup.java @ 1512:31b543826ca9
lucene.backup login
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Sat, 23 May 2020 19:01:57 -0600 |
| parents | 0ba144491a42 |
| children | 736ec76bbf42 |
| rev | line source |
|---|---|
| 1499 | 1 package goodjava.lucene.backup; |
| 2 | |
| 3 import java.io.File; | |
| 1509 | 4 import java.io.InputStream; |
| 5 import java.io.FileInputStream; | |
| 1499 | 6 import java.io.IOException; |
| 7 import java.util.List; | |
| 8 import java.util.ArrayList; | |
| 9 import java.util.Map; | |
| 10 import java.util.Arrays; | |
| 11 import goodjava.io.IoUtils; | |
| 1509 | 12 import goodjava.io.BufferedInputStream; |
| 1499 | 13 import goodjava.rpc.RpcServer; |
| 14 import goodjava.rpc.RpcCall; | |
| 15 import goodjava.rpc.RpcResult; | |
| 1512 | 16 import goodjava.rpc.RpcException; |
| 1499 | 17 import goodjava.logging.Logger; |
| 18 import goodjava.logging.LoggerFactory; | |
| 19 import goodjava.lucene.logging.LogFile; | |
| 20 import goodjava.lucene.logging.LoggingIndexWriter; | |
| 21 import goodjava.lucene.logging.LogOutputStream; | |
| 22 | |
| 23 | |
| 24 class Backup { | |
| 25 private static final Logger logger = LoggerFactory.getLogger(Backup.class); | |
| 26 | |
| 27 private final File dir; | |
| 1500 | 28 private final File index; |
| 1499 | 29 |
| 30 Backup(File dir) { | |
| 31 this.dir = dir; | |
| 1500 | 32 this.index = new File(dir,"index"); |
| 1499 | 33 } |
| 34 | |
| 1509 | 35 void handle(RpcServer rpc,RpcCall call) { |
| 1499 | 36 try { |
| 1509 | 37 IoUtils.mkdirs(dir); |
| 38 if( call.cmd.equals("zip") ) { | |
| 39 handleZip(rpc); | |
| 40 } else { | |
| 41 handle2(rpc,call); | |
| 42 } | |
| 1499 | 43 } catch(IOException e) { |
| 44 throw new RuntimeException(e); | |
| 45 } | |
| 46 } | |
| 47 | |
| 1509 | 48 private static final RpcResult OK = new RpcResult(new Object[]{"ok"}); |
| 49 | |
| 50 synchronized void handle2(RpcServer rpc,RpcCall call) throws IOException { | |
| 1499 | 51 //logger.info(call.cmd+" "+Arrays.asList(call.args)); |
| 52 String fileName = null; | |
| 53 if( call.cmd.equals("check") ) { | |
| 54 // nothing | |
| 55 } else if( call.cmd.equals("add") || call.cmd.equals("append") ) { | |
| 1512 | 56 fileName = (String)call.args[1]; |
| 1499 | 57 File f = new File(dir,fileName); |
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parents:
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changeset
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58 if( call.cmd.equals("add") ) |
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parents:
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59 IoUtils.delete(f); |
| 1499 | 60 LogFile log = new LogFile(f); |
| 61 LogOutputStream out = log.output(); | |
| 62 IoUtils.copyAll(call.in,out); | |
| 63 out.commit(); | |
| 64 out.close(); | |
| 1512 | 65 //logger.info(call.cmd+" "+fileName+" "+call.lenIn); |
| 66 } else { | |
| 67 logger.error("bad cmd '"+call.cmd+"'"); | |
| 68 rpc.write( new RpcException("bad cmd '"+call.cmd+"'") ); | |
| 69 return; | |
| 70 } | |
| 71 List logInfo = (List)call.args[0]; | |
| 72 //logger.info("check "+logInfo); | |
| 1509 | 73 RpcResult result = OK; |
| 1499 | 74 for( Object obj : logInfo ) { |
| 75 Map fileInfo = (Map)obj; | |
| 76 String name = (String)fileInfo.get("name"); | |
| 77 File f = new File(dir,name); | |
| 78 if( !f.exists() ) { | |
| 79 if( name.equals(fileName) ) logger.error("missing"); | |
| 1509 | 80 result = new RpcResult(new Object[]{"missing",name}); |
| 1499 | 81 break; |
| 82 } | |
| 83 long end = (Long)fileInfo.get("end"); | |
| 84 LogFile log = new LogFile(f); | |
| 85 long logEnd = log.end(); | |
| 86 if( logEnd > end ) { | |
| 87 logger.error("logEnd > end - shouldn't happen, file="+name+" logEnd="+logEnd+" end="+end); | |
| 1509 | 88 result = new RpcResult(new Object[]{"missing",name}); |
| 1499 | 89 break; |
| 90 } | |
| 91 if( logEnd < end ) { | |
| 92 if( name.equals(fileName) ) logger.error("incomplete"); | |
| 1509 | 93 result = new RpcResult(new Object[]{"incomplete",name,logEnd}); |
| 1499 | 94 break; |
| 95 } | |
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parents:
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diff
changeset
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96 Object checksumObj = fileInfo.get("checksum"); |
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86c5e7000ecf
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parents:
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diff
changeset
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97 if( checksumObj != null ) { |
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86c5e7000ecf
lucene.backup checksum
Franklin Schmidt <fschmidt@gmail.com>
parents:
1501
diff
changeset
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98 long checksum = (Long)checksumObj; |
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86c5e7000ecf
lucene.backup checksum
Franklin Schmidt <fschmidt@gmail.com>
parents:
1501
diff
changeset
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99 if( log.checksum() != checksum ) { |
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86c5e7000ecf
lucene.backup checksum
Franklin Schmidt <fschmidt@gmail.com>
parents:
1501
diff
changeset
|
100 index.delete(); |
| 1509 | 101 result = new RpcResult(new Object[]{"bad_checksum",name}); |
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Franklin Schmidt <fschmidt@gmail.com>
parents:
1501
diff
changeset
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102 break; |
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86c5e7000ecf
lucene.backup checksum
Franklin Schmidt <fschmidt@gmail.com>
parents:
1501
diff
changeset
|
103 } |
|
86c5e7000ecf
lucene.backup checksum
Franklin Schmidt <fschmidt@gmail.com>
parents:
1501
diff
changeset
|
104 } |
| 1499 | 105 } |
| 106 if( call.cmd.equals("add") ) { | |
| 107 boolean complete = true; | |
| 108 List<LogFile> logs = new ArrayList<LogFile>(); | |
| 109 for( Object obj : logInfo ) { | |
| 110 Map fileInfo = (Map)obj; | |
| 111 String name = (String)fileInfo.get("name"); | |
| 112 File f = new File(dir,name); | |
| 113 if( !f.exists() ) { | |
| 114 complete = false; | |
| 115 break; | |
| 116 } | |
| 117 logs.add( new LogFile(f) ); | |
| 118 } | |
| 119 if( complete ) { | |
| 120 LoggingIndexWriter.writeIndex(logs,index); | |
| 1512 | 121 //logger.info("write index"); |
| 1499 | 122 } |
| 123 } | |
| 124 rpc.write(result); | |
| 125 } | |
| 126 | |
| 1509 | 127 void handleZip(RpcServer rpc) throws IOException { |
| 128 File zip = File.createTempFile("luan_",".zip"); | |
| 129 IoUtils.delete(zip); | |
| 130 String cmd = "zip -r " + zip + " " + dir.getName(); | |
| 131 synchronized(this) { | |
| 132 Process proc = Runtime.getRuntime().exec(cmd,null,dir.getParentFile()); | |
| 133 IoUtils.waitFor(proc); | |
| 134 } | |
| 135 InputStream in = new BufferedInputStream(new FileInputStream(zip)); | |
| 136 RpcResult result = new RpcResult(in,zip.length(),new Object[0]); | |
| 137 rpc.write(result); | |
| 138 IoUtils.delete(zip); | |
| 139 } | |
| 1499 | 140 |
| 141 } |