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19 package org.apache.hadoop.hbase.rest;
20
21 import java.io.IOException;
22
23 import javax.ws.rs.GET;
24 import javax.ws.rs.Produces;
25 import javax.ws.rs.core.Context;
26 import javax.ws.rs.core.MultivaluedMap;
27 import javax.ws.rs.core.Response;
28 import javax.ws.rs.core.UriInfo;
29
30 import org.apache.commons.logging.Log;
31 import org.apache.commons.logging.LogFactory;
32 import org.apache.hadoop.hbase.classification.InterfaceAudience;
33 import org.apache.hadoop.hbase.Cell;
34 import org.apache.hadoop.hbase.CellUtil;
35 import org.apache.hadoop.hbase.rest.model.CellModel;
36 import org.apache.hadoop.hbase.rest.model.CellSetModel;
37 import org.apache.hadoop.hbase.rest.model.RowModel;
38
39 @InterfaceAudience.Private
40 public class MultiRowResource extends ResourceBase implements Constants {
41 private static final Log LOG = LogFactory.getLog(MultiRowResource.class);
42
43 TableResource tableResource;
44 Integer versions = null;
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53 public MultiRowResource(TableResource tableResource, String versions) throws IOException {
54 super();
55 this.tableResource = tableResource;
56
57 if (versions != null) {
58 this.versions = Integer.valueOf(versions);
59
60 }
61 }
62
63 @GET
64 @Produces({ MIMETYPE_XML, MIMETYPE_JSON, MIMETYPE_PROTOBUF, MIMETYPE_PROTOBUF_IETF })
65 public Response get(final @Context UriInfo uriInfo) {
66 MultivaluedMap<String, String> params = uriInfo.getQueryParameters();
67
68 servlet.getMetrics().incrementRequests(1);
69 try {
70 CellSetModel model = new CellSetModel();
71 for (String rk : params.get(ROW_KEYS_PARAM_NAME)) {
72 RowSpec rowSpec = new RowSpec(rk);
73
74 if (this.versions != null) {
75 rowSpec.setMaxVersions(this.versions);
76 }
77 ResultGenerator generator =
78 ResultGenerator.fromRowSpec(this.tableResource.getName(), rowSpec, null,
79 !params.containsKey(NOCACHE_PARAM_NAME));
80 Cell value = null;
81 RowModel rowModel = new RowModel(rk);
82 if (generator.hasNext()) {
83 while ((value = generator.next()) != null) {
84 rowModel.addCell(new CellModel(CellUtil.cloneFamily(value), CellUtil
85 .cloneQualifier(value), value.getTimestamp(), CellUtil.cloneValue(value)));
86 }
87 model.addRow(rowModel);
88 } else {
89 if (LOG.isTraceEnabled()) {
90 LOG.trace("The row : " + rk + " not found in the table.");
91 }
92 }
93 }
94
95 if (model.getRows().size() == 0) {
96
97 servlet.getMetrics().incrementFailedGetRequests(1);
98 return Response.status(Response.Status.NOT_FOUND)
99 .type(MIMETYPE_TEXT).entity("No rows found." + CRLF)
100 .build();
101 } else {
102 servlet.getMetrics().incrementSucessfulGetRequests(1);
103 return Response.ok(model).build();
104 }
105 } catch (Exception e) {
106 servlet.getMetrics().incrementFailedGetRequests(1);
107 return processException(e);
108 }
109 }
110 }