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18 package org.apache.hadoop.hbase.regionserver;
19
20 import java.io.IOException;
21 import java.util.Collection;
22 import java.util.List;
23 import java.util.Map;
24
25 import org.apache.hadoop.hbase.exceptions.DoNotRetryIOException;
26 import org.apache.hadoop.hbase.Cell;
27 import org.apache.hadoop.hbase.KeyValue;
28 import org.apache.hadoop.hbase.KeyValueUtil;
29 import org.apache.hadoop.hbase.client.Delete;
30 import org.apache.hadoop.hbase.client.Mutation;
31 import org.apache.hadoop.hbase.client.Put;
32 import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProcessorProtos.MultiRowMutationProcessorRequest;
33 import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProcessorProtos.MultiRowMutationProcessorResponse;
34 import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
35 import org.apache.hadoop.hbase.util.Bytes;
36
37
38
39
40 class MultiRowMutationProcessor extends BaseRowProcessor<MultiRowMutationProcessorRequest,
41 MultiRowMutationProcessorResponse> {
42 Collection<byte[]> rowsToLock;
43 Collection<Mutation> mutations;
44
45 MultiRowMutationProcessor(Collection<Mutation> mutations,
46 Collection<byte[]> rowsToLock) {
47 this.rowsToLock = rowsToLock;
48 this.mutations = mutations;
49 }
50
51 @Override
52 public Collection<byte[]> getRowsToLock() {
53 return rowsToLock;
54 }
55
56 @Override
57 public boolean readOnly() {
58 return false;
59 }
60
61 @Override
62 public MultiRowMutationProcessorResponse getResult() {
63 return MultiRowMutationProcessorResponse.getDefaultInstance();
64 }
65
66 @Override
67 public void process(long now,
68 HRegion region,
69 List<KeyValue> mutationKvs,
70 WALEdit walEdit) throws IOException {
71 byte[] byteNow = Bytes.toBytes(now);
72
73 for (Mutation m : mutations) {
74 if (m instanceof Put) {
75 Map<byte[], List<? extends Cell>> familyMap = m.getFamilyMap();
76 region.checkFamilies(familyMap.keySet());
77 region.checkTimestamps(familyMap, now);
78 region.updateKVTimestamps(familyMap.values(), byteNow);
79 } else if (m instanceof Delete) {
80 Delete d = (Delete) m;
81 region.prepareDelete(d);
82 region.prepareDeleteTimestamps(d.getFamilyMap(), byteNow);
83 } else {
84 throw new DoNotRetryIOException(
85 "Action must be Put or Delete. But was: "
86 + m.getClass().getName());
87 }
88 for (List<? extends Cell> cells: m.getFamilyMap().values()) {
89 boolean writeToWAL = m.getWriteToWAL();
90 for (Cell cell : cells) {
91 KeyValue kv = KeyValueUtil.ensureKeyValue(cell);
92 mutationKvs.add(kv);
93 if (writeToWAL) {
94 walEdit.add(kv);
95 }
96 }
97 }
98 }
99 }
100
101 @Override
102 public void preProcess(HRegion region, WALEdit walEdit) throws IOException {
103 RegionCoprocessorHost coprocessorHost = region.getCoprocessorHost();
104 if (coprocessorHost != null) {
105 for (Mutation m : mutations) {
106 if (m instanceof Put) {
107 if (coprocessorHost.prePut((Put) m, walEdit, m.getWriteToWAL())) {
108
109 return;
110 }
111 } else if (m instanceof Delete) {
112 Delete d = (Delete) m;
113 region.prepareDelete(d);
114 if (coprocessorHost.preDelete(d, walEdit, d.getWriteToWAL())) {
115
116 return;
117 }
118 }
119 }
120 }
121 }
122
123 @Override
124 public void postProcess(HRegion region, WALEdit walEdit) throws IOException {
125 RegionCoprocessorHost coprocessorHost = region.getCoprocessorHost();
126 if (coprocessorHost != null) {
127 for (Mutation m : mutations) {
128 if (m instanceof Put) {
129 coprocessorHost.postPut((Put) m, walEdit, m.getWriteToWAL());
130 } else if (m instanceof Delete) {
131 coprocessorHost.postDelete((Delete) m, walEdit, m.getWriteToWAL());
132 }
133 }
134 }
135 }
136
137 @Override
138 public MultiRowMutationProcessorRequest getRequestData() {
139 return MultiRowMutationProcessorRequest.getDefaultInstance();
140 }
141
142 @Override
143 public void initialize(MultiRowMutationProcessorRequest msg) {
144
145 }
146 }