| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.hbase.rest; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Base64; |
| import java.util.Base64.Decoder; |
| import java.util.List; |
| import org.apache.hadoop.hbase.Cell; |
| import org.apache.hadoop.hbase.CellUtil; |
| import org.apache.hadoop.hbase.client.Result; |
| import org.apache.hadoop.hbase.filter.Filter; |
| import org.apache.hadoop.hbase.filter.ParseFilter; |
| import org.apache.hadoop.hbase.rest.model.CellModel; |
| import org.apache.hadoop.hbase.rest.model.CellSetModel; |
| import org.apache.hadoop.hbase.rest.model.RowModel; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import org.apache.hbase.thirdparty.javax.ws.rs.Encoded; |
| import org.apache.hbase.thirdparty.javax.ws.rs.GET; |
| import org.apache.hbase.thirdparty.javax.ws.rs.HeaderParam; |
| import org.apache.hbase.thirdparty.javax.ws.rs.Produces; |
| import org.apache.hbase.thirdparty.javax.ws.rs.QueryParam; |
| import org.apache.hbase.thirdparty.javax.ws.rs.core.Context; |
| import org.apache.hbase.thirdparty.javax.ws.rs.core.MultivaluedMap; |
| import org.apache.hbase.thirdparty.javax.ws.rs.core.Response; |
| import org.apache.hbase.thirdparty.javax.ws.rs.core.UriInfo; |
| |
| @InterfaceAudience.Private |
| public class MultiRowResource extends ResourceBase implements Constants { |
| private static final Logger LOG = LoggerFactory.getLogger(MultiRowResource.class); |
| |
| private static final Decoder base64Urldecoder = Base64.getUrlDecoder(); |
| |
| TableResource tableResource; |
| Integer versions = null; |
| String[] columns = null; |
| |
| /** |
| * Constructor |
| */ |
| public MultiRowResource(TableResource tableResource, String versions, String columnsStr) |
| throws IOException { |
| super(); |
| this.tableResource = tableResource; |
| |
| if (columnsStr != null && !columnsStr.equals("")) { |
| this.columns = columnsStr.split(","); |
| } |
| |
| if (versions != null) { |
| this.versions = Integer.valueOf(versions); |
| |
| } |
| } |
| |
| @GET |
| @Produces({ MIMETYPE_XML, MIMETYPE_JSON, MIMETYPE_PROTOBUF, MIMETYPE_PROTOBUF_IETF }) |
| public Response get(final @Context UriInfo uriInfo, |
| final @HeaderParam("Encoding") String keyEncodingHeader, |
| @QueryParam(Constants.FILTER_B64) @Encoded String paramFilterB64, |
| @QueryParam(Constants.FILTER) String paramFilter) { |
| MultivaluedMap<String, String> params = uriInfo.getQueryParameters(); |
| String keyEncoding = (keyEncodingHeader != null) |
| ? keyEncodingHeader |
| : params.getFirst(KEY_ENCODING_QUERY_PARAM_NAME); |
| |
| servlet.getMetrics().incrementRequests(1); |
| |
| byte[] filterBytes = null; |
| if (paramFilterB64 != null) { |
| filterBytes = base64Urldecoder.decode(paramFilterB64); |
| } else if (paramFilter != null) { |
| filterBytes = paramFilter.getBytes(); |
| } |
| |
| try { |
| Filter parsedParamFilter = null; |
| if (filterBytes != null) { |
| // Note that this is a completely different representation of the filters |
| // than the JSON one used in the /table/scanner endpoint |
| ParseFilter pf = new ParseFilter(); |
| parsedParamFilter = pf.parseFilterString(filterBytes); |
| } |
| List<RowSpec> rowSpecs = new ArrayList<>(); |
| for (String rk : params.get(ROW_KEYS_PARAM_NAME)) { |
| RowSpec rowSpec = new RowSpec(rk, keyEncoding); |
| |
| if (this.versions != null) { |
| rowSpec.setMaxVersions(this.versions); |
| } |
| |
| if (this.columns != null) { |
| for (int i = 0; i < this.columns.length; i++) { |
| rowSpec.addColumn(Bytes.toBytes(this.columns[i])); |
| } |
| } |
| rowSpecs.add(rowSpec); |
| } |
| |
| MultiRowResultReader reader = new MultiRowResultReader(this.tableResource.getName(), rowSpecs, |
| parsedParamFilter, !params.containsKey(NOCACHE_PARAM_NAME)); |
| |
| CellSetModel model = new CellSetModel(); |
| for (Result r : reader.getResults()) { |
| if (r.isEmpty()) { |
| continue; |
| } |
| RowModel rowModel = new RowModel(r.getRow()); |
| for (Cell c : r.listCells()) { |
| rowModel.addCell(new CellModel(CellUtil.cloneFamily(c), CellUtil.cloneQualifier(c), |
| c.getTimestamp(), CellUtil.cloneValue(c))); |
| } |
| model.addRow(rowModel); |
| } |
| if (model.getRows().isEmpty()) { |
| // If no rows found. |
| servlet.getMetrics().incrementFailedGetRequests(1); |
| return Response.status(Response.Status.NOT_FOUND).type(MIMETYPE_TEXT) |
| .entity("No rows found." + CRLF).build(); |
| } else { |
| servlet.getMetrics().incrementSucessfulGetRequests(1); |
| return Response.ok(model).build(); |
| } |
| } catch (IOException e) { |
| servlet.getMetrics().incrementFailedGetRequests(1); |
| return processException(e); |
| } |
| } |
| } |