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19
20 package org.apache.hadoop.hbase;
21
22 import java.io.DataInput;
23 import java.io.DataOutput;
24 import java.io.IOException;
25 import java.util.ArrayList;
26 import java.util.Collection;
27 import java.util.Collections;
28 import java.util.HashMap;
29 import java.util.Iterator;
30 import java.util.List;
31 import java.util.Map;
32 import java.util.Set;
33 import java.util.HashSet;
34 import java.util.TreeSet;
35 import java.util.TreeMap;
36 import java.util.regex.Matcher;
37
38 import org.apache.hadoop.conf.Configuration;
39 import org.apache.hadoop.fs.Path;
40 import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
41 import org.apache.hadoop.hbase.security.User;
42 import org.apache.hadoop.hbase.util.Bytes;
43 import org.apache.hadoop.io.WritableComparable;
44
45
46
47
48
49
50
51 public class HTableDescriptor implements WritableComparable<HTableDescriptor> {
52
53
54
55
56
57
58
59 private static final byte TABLE_DESCRIPTOR_VERSION = 5;
60
61 private byte [] name = HConstants.EMPTY_BYTE_ARRAY;
62
63 private String nameAsString = "";
64
65
66
67
68
69
70 protected final Map<ImmutableBytesWritable, ImmutableBytesWritable> values =
71 new HashMap<ImmutableBytesWritable, ImmutableBytesWritable>();
72
73 private static final String FAMILIES = "FAMILIES";
74
75 public static final String SPLIT_POLICY = "SPLIT_POLICY";
76
77
78
79
80
81
82
83
84 public static final String MAX_FILESIZE = "MAX_FILESIZE";
85 private static final ImmutableBytesWritable MAX_FILESIZE_KEY =
86 new ImmutableBytesWritable(Bytes.toBytes(MAX_FILESIZE));
87
88 public static final String OWNER = "OWNER";
89 public static final ImmutableBytesWritable OWNER_KEY =
90 new ImmutableBytesWritable(Bytes.toBytes(OWNER));
91
92
93
94
95
96
97
98 public static final String READONLY = "READONLY";
99 private static final ImmutableBytesWritable READONLY_KEY =
100 new ImmutableBytesWritable(Bytes.toBytes(READONLY));
101
102
103
104
105
106
107
108
109 public static final String MEMSTORE_FLUSHSIZE = "MEMSTORE_FLUSHSIZE";
110 private static final ImmutableBytesWritable MEMSTORE_FLUSHSIZE_KEY =
111 new ImmutableBytesWritable(Bytes.toBytes(MEMSTORE_FLUSHSIZE));
112
113
114
115
116
117
118
119 public static final String IS_ROOT = "IS_ROOT";
120 private static final ImmutableBytesWritable IS_ROOT_KEY =
121 new ImmutableBytesWritable(Bytes.toBytes(IS_ROOT));
122
123
124
125
126
127
128
129
130 public static final String IS_META = "IS_META";
131 private static final ImmutableBytesWritable IS_META_KEY =
132 new ImmutableBytesWritable(Bytes.toBytes(IS_META));
133
134
135
136
137
138 public static final String DEFERRED_LOG_FLUSH = "DEFERRED_LOG_FLUSH";
139 private static final ImmutableBytesWritable DEFERRED_LOG_FLUSH_KEY =
140 new ImmutableBytesWritable(Bytes.toBytes(DEFERRED_LOG_FLUSH));
141
142
143
144
145
146
147 private static final ImmutableBytesWritable FALSE =
148 new ImmutableBytesWritable(Bytes.toBytes(Boolean.FALSE.toString()));
149
150 private static final ImmutableBytesWritable TRUE =
151 new ImmutableBytesWritable(Bytes.toBytes(Boolean.TRUE.toString()));
152
153 private static final boolean DEFAULT_DEFERRED_LOG_FLUSH = false;
154
155
156
157
158 public static final boolean DEFAULT_READONLY = false;
159
160
161
162
163
164 public static final long DEFAULT_MEMSTORE_FLUSH_SIZE = 1024*1024*128L;
165 private final static Map<String, String> DEFAULT_VALUES
166 = new HashMap<String, String>();
167 private final static Set<ImmutableBytesWritable> RESERVED_KEYWORDS
168 = new HashSet<ImmutableBytesWritable>();
169 static {
170 DEFAULT_VALUES.put(MAX_FILESIZE,
171 String.valueOf(HConstants.DEFAULT_MAX_FILE_SIZE));
172 DEFAULT_VALUES.put(READONLY, String.valueOf(DEFAULT_READONLY));
173 DEFAULT_VALUES.put(MEMSTORE_FLUSHSIZE,
174 String.valueOf(DEFAULT_MEMSTORE_FLUSH_SIZE));
175 DEFAULT_VALUES.put(DEFERRED_LOG_FLUSH,
176 String.valueOf(DEFAULT_DEFERRED_LOG_FLUSH));
177 for (String s : DEFAULT_VALUES.keySet()) {
178 RESERVED_KEYWORDS.add(new ImmutableBytesWritable(Bytes.toBytes(s)));
179 }
180 RESERVED_KEYWORDS.add(IS_ROOT_KEY);
181 RESERVED_KEYWORDS.add(IS_META_KEY);
182 }
183
184
185
186 private volatile Boolean meta = null;
187 private volatile Boolean root = null;
188 private Boolean isDeferredLog = null;
189
190
191
192
193 private final Map<byte [], HColumnDescriptor> families =
194 new TreeMap<byte [], HColumnDescriptor>(Bytes.BYTES_RAWCOMPARATOR);
195
196
197
198
199
200 protected HTableDescriptor(final byte [] name, HColumnDescriptor[] families) {
201 this.name = name.clone();
202 this.nameAsString = Bytes.toString(this.name);
203 setMetaFlags(name);
204 for(HColumnDescriptor descriptor : families) {
205 this.families.put(descriptor.getName(), descriptor);
206 }
207 }
208
209
210
211
212
213 protected HTableDescriptor(final byte [] name, HColumnDescriptor[] families,
214 Map<ImmutableBytesWritable,ImmutableBytesWritable> values) {
215 this.name = name.clone();
216 this.nameAsString = Bytes.toString(this.name);
217 setMetaFlags(name);
218 for(HColumnDescriptor descriptor : families) {
219 this.families.put(descriptor.getName(), descriptor);
220 }
221 for (Map.Entry<ImmutableBytesWritable, ImmutableBytesWritable> entry:
222 values.entrySet()) {
223 this.values.put(entry.getKey(), entry.getValue());
224 }
225 }
226
227
228
229
230
231
232 public HTableDescriptor() {
233 super();
234 }
235
236
237
238
239
240
241
242
243
244 public HTableDescriptor(final String name) {
245 this(Bytes.toBytes(name));
246 }
247
248
249
250
251
252
253
254
255
256 public HTableDescriptor(final byte [] name) {
257 super();
258 setMetaFlags(this.name);
259 this.name = this.isMetaRegion()? name: isLegalTableName(name);
260 this.nameAsString = Bytes.toString(this.name);
261 }
262
263
264
265
266
267
268
269
270 public HTableDescriptor(final HTableDescriptor desc) {
271 super();
272 this.name = desc.name.clone();
273 this.nameAsString = Bytes.toString(this.name);
274 setMetaFlags(this.name);
275 for (HColumnDescriptor c: desc.families.values()) {
276 this.families.put(c.getName(), new HColumnDescriptor(c));
277 }
278 for (Map.Entry<ImmutableBytesWritable, ImmutableBytesWritable> e:
279 desc.values.entrySet()) {
280 this.values.put(e.getKey(), e.getValue());
281 }
282 }
283
284
285
286
287
288
289
290
291 private void setMetaFlags(final byte [] name) {
292 setRootRegion(Bytes.equals(name, HConstants.ROOT_TABLE_NAME));
293 setMetaRegion(isRootRegion() ||
294 Bytes.equals(name, HConstants.META_TABLE_NAME));
295 }
296
297
298
299
300
301
302 public boolean isRootRegion() {
303 if (this.root == null) {
304 this.root = isSomething(IS_ROOT_KEY, false)? Boolean.TRUE: Boolean.FALSE;
305 }
306 return this.root.booleanValue();
307 }
308
309
310
311
312
313
314
315
316 protected void setRootRegion(boolean isRoot) {
317
318 values.put(IS_ROOT_KEY, isRoot? TRUE: FALSE);
319 }
320
321
322
323
324
325
326
327
328 public boolean isMetaRegion() {
329 if (this.meta == null) {
330 this.meta = calculateIsMetaRegion();
331 }
332 return this.meta.booleanValue();
333 }
334
335 private synchronized Boolean calculateIsMetaRegion() {
336 byte [] value = getValue(IS_META_KEY);
337 return (value != null)? Boolean.valueOf(Bytes.toString(value)): Boolean.FALSE;
338 }
339
340 private boolean isSomething(final ImmutableBytesWritable key,
341 final boolean valueIfNull) {
342 byte [] value = getValue(key);
343 if (value != null) {
344
345 return Boolean.valueOf(Bytes.toString(value)).booleanValue();
346 }
347 return valueIfNull;
348 }
349
350
351
352
353
354
355
356
357
358 protected void setMetaRegion(boolean isMeta) {
359 values.put(IS_META_KEY, isMeta? TRUE: FALSE);
360 }
361
362
363
364
365
366
367 public boolean isMetaTable() {
368 return isMetaRegion() && !isRootRegion();
369 }
370
371
372
373
374
375
376
377
378 public static boolean isMetaTable(final byte [] tableName) {
379 return Bytes.equals(tableName, HConstants.ROOT_TABLE_NAME) ||
380 Bytes.equals(tableName, HConstants.META_TABLE_NAME);
381 }
382
383
384 public static final String VALID_USER_TABLE_REGEX = "(?:[a-zA-Z_0-9][a-zA-Z_0-9.-]*)";
385
386 public static byte [] isLegalTableName(final byte [] tableName) {
387 return isLegalTableName(tableName, false);
388 }
389
390
391
392
393
394
395
396
397
398 public static byte [] isLegalTableName(final byte [] tableName, boolean isSnapshot) {
399 if (tableName == null || tableName.length <= 0) {
400 throw new IllegalArgumentException("Name is null or empty");
401 }
402 if (tableName[0] == '.' || tableName[0] == '-') {
403 throw new IllegalArgumentException("Illegal first character <" + tableName[0] +
404 "> at 0. " + (isSnapshot ? "snapshot" : "User-space table") +
405 " can only start with 'word characters': i.e. [a-zA-Z_0-9]: " +
406 Bytes.toString(tableName));
407 }
408 for (int i = 0; i < tableName.length; i++) {
409 if (Character.isLetterOrDigit(tableName[i]) || tableName[i] == '_' ||
410 tableName[i] == '-' || tableName[i] == '.') {
411 continue;
412 }
413 throw new IllegalArgumentException("Illegal character <" + tableName[i] +
414 "> at " + i + ". " + (isSnapshot ? "snapshot" : "User-space table") +
415 " can only contain 'word characters': i.e. [a-zA-Z_0-9-.]: " +
416 Bytes.toString(tableName));
417 }
418 return tableName;
419 }
420
421
422
423
424
425
426
427
428 public byte[] getValue(byte[] key) {
429 return getValue(new ImmutableBytesWritable(key));
430 }
431
432 private byte[] getValue(final ImmutableBytesWritable key) {
433 ImmutableBytesWritable ibw = values.get(key);
434 if (ibw == null)
435 return null;
436 return ibw.get();
437 }
438
439
440
441
442
443
444
445
446 public String getValue(String key) {
447 byte[] value = getValue(Bytes.toBytes(key));
448 if (value == null)
449 return null;
450 return Bytes.toString(value);
451 }
452
453
454
455
456
457
458
459 public Map<ImmutableBytesWritable,ImmutableBytesWritable> getValues() {
460
461 return Collections.unmodifiableMap(values);
462 }
463
464
465
466
467
468
469
470
471 public void setValue(byte[] key, byte[] value) {
472 setValue(new ImmutableBytesWritable(key), value);
473 }
474
475
476
477
478
479 private void setValue(final ImmutableBytesWritable key,
480 final byte[] value) {
481 values.put(key, new ImmutableBytesWritable(value));
482 }
483
484
485
486
487
488
489
490 public void setValue(final ImmutableBytesWritable key,
491 final ImmutableBytesWritable value) {
492 values.put(key, value);
493 }
494
495
496
497
498
499
500
501
502 public void setValue(String key, String value) {
503 if (value == null) {
504 remove(Bytes.toBytes(key));
505 } else {
506 setValue(Bytes.toBytes(key), Bytes.toBytes(value));
507 }
508 }
509
510
511
512
513
514
515
516 public void remove(final byte [] key) {
517 values.remove(new ImmutableBytesWritable(key));
518 }
519
520
521
522
523
524
525
526 public void remove(final String key) {
527 remove(Bytes.toBytes(key));
528 }
529
530
531
532
533
534
535
536 public boolean isReadOnly() {
537 return isSomething(READONLY_KEY, DEFAULT_READONLY);
538 }
539
540
541
542
543
544
545
546
547
548 public void setReadOnly(final boolean readOnly) {
549 setValue(READONLY_KEY, readOnly? TRUE: FALSE);
550 }
551
552
553
554
555
556
557
558
559 public synchronized boolean isDeferredLogFlush() {
560 if(this.isDeferredLog == null) {
561 this.isDeferredLog =
562 isSomething(DEFERRED_LOG_FLUSH_KEY, DEFAULT_DEFERRED_LOG_FLUSH);
563 }
564 return this.isDeferredLog;
565 }
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581 public void setDeferredLogFlush(final boolean isDeferredLogFlush) {
582 setValue(DEFERRED_LOG_FLUSH_KEY, isDeferredLogFlush? TRUE: FALSE);
583 this.isDeferredLog = isDeferredLogFlush;
584 }
585
586
587
588
589
590
591 public byte [] getName() {
592 return name;
593 }
594
595
596
597
598
599
600 public String getNameAsString() {
601 return this.nameAsString;
602 }
603
604
605
606
607
608
609
610
611
612
613
614 public String getRegionSplitPolicyClassName() {
615 return getValue(SPLIT_POLICY);
616 }
617
618
619
620
621
622
623 public void setName(byte[] name) {
624 this.name = name;
625 this.nameAsString = Bytes.toString(this.name);
626 setMetaFlags(this.name);
627 }
628
629
630
631
632
633
634
635
636
637
638 public long getMaxFileSize() {
639 byte [] value = getValue(MAX_FILESIZE_KEY);
640 if (value != null) {
641 return Long.parseLong(Bytes.toString(value));
642 }
643 return -1;
644 }
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661 public void setMaxFileSize(long maxFileSize) {
662 setValue(MAX_FILESIZE_KEY, Bytes.toBytes(Long.toString(maxFileSize)));
663 }
664
665
666
667
668
669
670
671
672 public long getMemStoreFlushSize() {
673 byte [] value = getValue(MEMSTORE_FLUSHSIZE_KEY);
674 if (value != null) {
675 return Long.parseLong(Bytes.toString(value));
676 }
677 return -1;
678 }
679
680
681
682
683
684
685
686 public void setMemStoreFlushSize(long memstoreFlushSize) {
687 setValue(MEMSTORE_FLUSHSIZE_KEY,
688 Bytes.toBytes(Long.toString(memstoreFlushSize)));
689 }
690
691
692
693
694
695 public void addFamily(final HColumnDescriptor family) {
696 if (family.getName() == null || family.getName().length <= 0) {
697 throw new NullPointerException("Family name cannot be null or empty");
698 }
699 this.families.put(family.getName(), family);
700 }
701
702
703
704
705
706
707 public boolean hasFamily(final byte [] familyName) {
708 return families.containsKey(familyName);
709 }
710
711
712
713
714
715
716 @Override
717 public String toString() {
718 StringBuilder s = new StringBuilder();
719 s.append('\'').append(Bytes.toString(name)).append('\'');
720 s.append(getValues(true));
721 for (HColumnDescriptor f : families.values()) {
722 s.append(", ").append(f);
723 }
724 return s.toString();
725 }
726
727
728
729
730
731 public String toStringCustomizedValues() {
732 StringBuilder s = new StringBuilder();
733 s.append('\'').append(Bytes.toString(name)).append('\'');
734 s.append(getValues(false));
735 for(HColumnDescriptor hcd : families.values()) {
736 s.append(", ").append(hcd.toStringCustomizedValues());
737 }
738 return s.toString();
739 }
740
741 private StringBuilder getValues(boolean printDefaults) {
742 StringBuilder s = new StringBuilder();
743
744
745 Set<ImmutableBytesWritable> reservedKeys = new TreeSet<ImmutableBytesWritable>();
746 Set<ImmutableBytesWritable> configKeys = new TreeSet<ImmutableBytesWritable>();
747 for (ImmutableBytesWritable k : values.keySet()) {
748 if (k == null || k.get() == null) continue;
749 String key = Bytes.toString(k.get());
750
751 if (!RESERVED_KEYWORDS.contains(k) && !key.startsWith("coprocessor$")) {
752 configKeys.add(k);
753 continue;
754 }
755
756 String value = Bytes.toString(values.get(k).get());
757 if (key.equalsIgnoreCase(IS_ROOT) || key.equalsIgnoreCase(IS_META)) {
758
759 if (value.toLowerCase().equals(Boolean.FALSE.toString())) {
760 continue;
761 }
762 }
763
764
765 if (printDefaults
766 || !DEFAULT_VALUES.containsKey(key)
767 || !DEFAULT_VALUES.get(key).equalsIgnoreCase(value)) {
768 reservedKeys.add(k);
769 }
770 }
771
772
773
774
775 if (reservedKeys.isEmpty() && configKeys.isEmpty()) return s;
776
777
778 s.append(", {METHOD => 'table_att'");
779
780
781 for (ImmutableBytesWritable k : reservedKeys) {
782 String key = Bytes.toString(k.get());
783 String value = Bytes.toString(values.get(k).get());
784
785 s.append(", ");
786 s.append(key);
787 s.append(" => ");
788 s.append('\'').append(value).append('\'');
789 }
790 if (!configKeys.isEmpty()) {
791
792 s.append(", ");
793 s.append(HConstants.CONFIG).append(" => ");
794 s.append("{");
795 boolean printComma = false;
796 for (ImmutableBytesWritable k : configKeys) {
797 String key = Bytes.toString(k.get());
798 String value = Bytes.toString(values.get(k).get());
799 if (printComma) s.append(", ");
800 printComma = true;
801 s.append('\'').append(key).append('\'');
802 s.append(" => ");
803 s.append('\'').append(value).append('\'');
804 }
805 s.append("}");
806 }
807
808 s.append('}');
809 return s;
810 }
811
812 public static Map<String, String> getDefaultValues() {
813 return Collections.unmodifiableMap(DEFAULT_VALUES);
814 }
815
816
817
818
819
820
821
822
823
824
825 @Override
826 public boolean equals(Object obj) {
827 if (this == obj) {
828 return true;
829 }
830 if (obj == null) {
831 return false;
832 }
833 if (!(obj instanceof HTableDescriptor)) {
834 return false;
835 }
836 return compareTo((HTableDescriptor)obj) == 0;
837 }
838
839
840
841
842 @Override
843 public int hashCode() {
844 int result = Bytes.hashCode(this.name);
845 result ^= Byte.valueOf(TABLE_DESCRIPTOR_VERSION).hashCode();
846 if (this.families != null && this.families.size() > 0) {
847 for (HColumnDescriptor e: this.families.values()) {
848 result ^= e.hashCode();
849 }
850 }
851 result ^= values.hashCode();
852 return result;
853 }
854
855
856
857
858
859
860 @Override
861 public void readFields(DataInput in) throws IOException {
862 int version = in.readInt();
863 if (version < 3)
864 throw new IOException("versions < 3 are not supported (and never existed!?)");
865
866 name = Bytes.readByteArray(in);
867 nameAsString = Bytes.toString(this.name);
868 setRootRegion(in.readBoolean());
869 setMetaRegion(in.readBoolean());
870 values.clear();
871 int numVals = in.readInt();
872 for (int i = 0; i < numVals; i++) {
873 ImmutableBytesWritable key = new ImmutableBytesWritable();
874 ImmutableBytesWritable value = new ImmutableBytesWritable();
875 key.readFields(in);
876 value.readFields(in);
877 values.put(key, value);
878 }
879 families.clear();
880 int numFamilies = in.readInt();
881 for (int i = 0; i < numFamilies; i++) {
882 HColumnDescriptor c = new HColumnDescriptor();
883 c.readFields(in);
884 families.put(c.getName(), c);
885 }
886 if (version < 4) {
887 return;
888 }
889 }
890
891
892
893
894
895 @Override
896 public void write(DataOutput out) throws IOException {
897 out.writeInt(TABLE_DESCRIPTOR_VERSION);
898 Bytes.writeByteArray(out, name);
899 out.writeBoolean(isRootRegion());
900 out.writeBoolean(isMetaRegion());
901 out.writeInt(values.size());
902 for (Map.Entry<ImmutableBytesWritable, ImmutableBytesWritable> e:
903 values.entrySet()) {
904 e.getKey().write(out);
905 e.getValue().write(out);
906 }
907 out.writeInt(families.size());
908 for(Iterator<HColumnDescriptor> it = families.values().iterator();
909 it.hasNext(); ) {
910 HColumnDescriptor family = it.next();
911 family.write(out);
912 }
913 }
914
915
916
917
918
919
920
921
922
923
924 @Override
925 public int compareTo(final HTableDescriptor other) {
926 int result = Bytes.compareTo(this.name, other.name);
927 if (result == 0) {
928 result = families.size() - other.families.size();
929 }
930 if (result == 0 && families.size() != other.families.size()) {
931 result = Integer.valueOf(families.size()).compareTo(
932 Integer.valueOf(other.families.size()));
933 }
934 if (result == 0) {
935 for (Iterator<HColumnDescriptor> it = families.values().iterator(),
936 it2 = other.families.values().iterator(); it.hasNext(); ) {
937 result = it.next().compareTo(it2.next());
938 if (result != 0) {
939 break;
940 }
941 }
942 }
943 if (result == 0) {
944
945 result = this.values.hashCode() - other.values.hashCode();
946 if (result < 0)
947 result = -1;
948 else if (result > 0)
949 result = 1;
950 }
951 return result;
952 }
953
954
955
956
957
958
959
960
961 public Collection<HColumnDescriptor> getFamilies() {
962 return Collections.unmodifiableCollection(this.families.values());
963 }
964
965
966
967
968
969
970
971
972
973 public Set<byte[]> getFamiliesKeys() {
974 return Collections.unmodifiableSet(this.families.keySet());
975 }
976
977
978
979
980
981
982
983
984
985 public HColumnDescriptor[] getColumnFamilies() {
986 return getFamilies().toArray(new HColumnDescriptor[0]);
987 }
988
989
990
991
992
993
994
995
996
997
998 public HColumnDescriptor getFamily(final byte [] column) {
999 return this.families.get(column);
1000 }
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011 public HColumnDescriptor removeFamily(final byte [] column) {
1012 return this.families.remove(column);
1013 }
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026 public void addCoprocessor(String className) throws IOException {
1027 addCoprocessor(className, null, Coprocessor.PRIORITY_USER, null);
1028 }
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045 public void addCoprocessor(String className, Path jarFilePath,
1046 int priority, final Map<String, String> kvs)
1047 throws IOException {
1048 if (hasCoprocessor(className)) {
1049 throw new IOException("Coprocessor " + className + " already exists.");
1050 }
1051
1052 StringBuilder kvString = new StringBuilder();
1053 if (kvs != null) {
1054 for (Map.Entry<String, String> e: kvs.entrySet()) {
1055 if (!e.getKey().matches(HConstants.CP_HTD_ATTR_VALUE_PARAM_KEY_PATTERN)) {
1056 throw new IOException("Illegal parameter key = " + e.getKey());
1057 }
1058 if (!e.getValue().matches(HConstants.CP_HTD_ATTR_VALUE_PARAM_VALUE_PATTERN)) {
1059 throw new IOException("Illegal parameter (" + e.getKey() +
1060 ") value = " + e.getValue());
1061 }
1062 if (kvString.length() != 0) {
1063 kvString.append(',');
1064 }
1065 kvString.append(e.getKey());
1066 kvString.append('=');
1067 kvString.append(e.getValue());
1068 }
1069 }
1070
1071
1072 int maxCoprocessorNumber = 0;
1073 Matcher keyMatcher;
1074 for (Map.Entry<ImmutableBytesWritable, ImmutableBytesWritable> e:
1075 this.values.entrySet()) {
1076 keyMatcher =
1077 HConstants.CP_HTD_ATTR_KEY_PATTERN.matcher(
1078 Bytes.toString(e.getKey().get()));
1079 if (!keyMatcher.matches()) {
1080 continue;
1081 }
1082 maxCoprocessorNumber = Math.max(Integer.parseInt(keyMatcher.group(1)),
1083 maxCoprocessorNumber);
1084 }
1085 maxCoprocessorNumber++;
1086
1087 String key = "coprocessor$" + Integer.toString(maxCoprocessorNumber);
1088 String value = ((jarFilePath == null)? "" : jarFilePath.toString()) +
1089 "|" + className + "|" + Integer.toString(priority) + "|" +
1090 kvString.toString();
1091 setValue(key, value);
1092 }
1093
1094
1095
1096
1097
1098
1099
1100
1101 public boolean hasCoprocessor(String className) {
1102 Matcher keyMatcher;
1103 Matcher valueMatcher;
1104 for (Map.Entry<ImmutableBytesWritable, ImmutableBytesWritable> e:
1105 this.values.entrySet()) {
1106 keyMatcher =
1107 HConstants.CP_HTD_ATTR_KEY_PATTERN.matcher(
1108 Bytes.toString(e.getKey().get()));
1109 if (!keyMatcher.matches()) {
1110 continue;
1111 }
1112 valueMatcher =
1113 HConstants.CP_HTD_ATTR_VALUE_PATTERN.matcher(
1114 Bytes.toString(e.getValue().get()));
1115 if (!valueMatcher.matches()) {
1116 continue;
1117 }
1118
1119 String clazz = valueMatcher.group(2).trim();
1120 if (clazz.equals(className.trim())) {
1121 return true;
1122 }
1123 }
1124 return false;
1125 }
1126
1127
1128
1129
1130
1131
1132 public List<String> getCoprocessors() {
1133 List<String> result = new ArrayList<String>();
1134 Matcher keyMatcher;
1135 Matcher valueMatcher;
1136 for (Map.Entry<ImmutableBytesWritable, ImmutableBytesWritable> e : this.values.entrySet()) {
1137 keyMatcher = HConstants.CP_HTD_ATTR_KEY_PATTERN.matcher(Bytes.toString(e.getKey().get()));
1138 if (!keyMatcher.matches()) {
1139 continue;
1140 }
1141 valueMatcher = HConstants.CP_HTD_ATTR_VALUE_PATTERN.matcher(Bytes
1142 .toString(e.getValue().get()));
1143 if (!valueMatcher.matches()) {
1144 continue;
1145 }
1146 result.add(valueMatcher.group(2).trim());
1147 }
1148 return result;
1149 }
1150
1151
1152
1153
1154
1155 public void removeCoprocessor(String className) {
1156 ImmutableBytesWritable match = null;
1157 Matcher keyMatcher;
1158 Matcher valueMatcher;
1159 for (Map.Entry<ImmutableBytesWritable, ImmutableBytesWritable> e : this.values
1160 .entrySet()) {
1161 keyMatcher = HConstants.CP_HTD_ATTR_KEY_PATTERN.matcher(Bytes.toString(e
1162 .getKey().get()));
1163 if (!keyMatcher.matches()) {
1164 continue;
1165 }
1166 valueMatcher = HConstants.CP_HTD_ATTR_VALUE_PATTERN.matcher(Bytes
1167 .toString(e.getValue().get()));
1168 if (!valueMatcher.matches()) {
1169 continue;
1170 }
1171
1172 String clazz = valueMatcher.group(2).trim();
1173
1174 if (clazz.equals(className.trim())) {
1175 match = e.getKey();
1176 break;
1177 }
1178 }
1179
1180 if (match != null)
1181 this.values.remove(match);
1182 }
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192 public static Path getTableDir(Path rootdir, final byte [] tableName) {
1193 return new Path(rootdir, Bytes.toString(tableName));
1194 }
1195
1196
1197 public static final HTableDescriptor ROOT_TABLEDESC = new HTableDescriptor(
1198 HConstants.ROOT_TABLE_NAME,
1199 new HColumnDescriptor[] {
1200 new HColumnDescriptor(HConstants.CATALOG_FAMILY)
1201
1202 .setMaxVersions(10)
1203 .setInMemory(true)
1204 .setBlocksize(8 * 1024)
1205 .setTimeToLive(HConstants.FOREVER)
1206 .setScope(HConstants.REPLICATION_SCOPE_LOCAL)
1207 });
1208
1209
1210 public static final HTableDescriptor META_TABLEDESC = new HTableDescriptor(
1211 HConstants.META_TABLE_NAME, new HColumnDescriptor[] {
1212 new HColumnDescriptor(HConstants.CATALOG_FAMILY)
1213
1214 .setMaxVersions(10)
1215 .setInMemory(true)
1216 .setBlocksize(8 * 1024)
1217 .setScope(HConstants.REPLICATION_SCOPE_LOCAL)
1218 });
1219
1220 @Deprecated
1221 public void setOwner(User owner) {
1222 setOwnerString(owner != null ? owner.getShortName() : null);
1223 }
1224
1225
1226 @Deprecated
1227 public void setOwnerString(String ownerString) {
1228 if (ownerString != null) {
1229 setValue(OWNER_KEY, Bytes.toBytes(ownerString));
1230 } else {
1231 values.remove(OWNER_KEY);
1232 }
1233 }
1234
1235 @Deprecated
1236 public String getOwnerString() {
1237 if (getValue(OWNER_KEY) != null) {
1238 return Bytes.toString(getValue(OWNER_KEY));
1239 }
1240
1241
1242
1243 return null;
1244 }
1245 }