110 lines
4.3 KiB
Java
110 lines
4.3 KiB
Java
/*
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* Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package monasca.api.resource;
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import static monasca.api.app.validation.Validation.DEFAULT_ADMIN_ROLE;
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import com.google.common.base.Splitter;
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import com.google.common.base.Strings;
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import com.codahale.metrics.annotation.Timed;
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import org.joda.time.DateTime;
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import java.util.List;
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import java.util.Map;
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import javax.inject.Inject;
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import javax.ws.rs.DefaultValue;
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import javax.ws.rs.GET;
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import javax.ws.rs.HeaderParam;
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import javax.ws.rs.Path;
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import javax.ws.rs.Produces;
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import javax.ws.rs.QueryParam;
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import javax.ws.rs.core.Context;
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import javax.ws.rs.core.MediaType;
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import javax.ws.rs.core.UriInfo;
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import monasca.api.app.validation.MetricNameValidation;
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import monasca.api.ApiConfig;
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import monasca.api.app.validation.Validation;
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import monasca.api.domain.model.statistic.StatisticRepo;
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import monasca.api.infrastructure.persistence.PersistUtils;
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// import monasca.common.util.stats.Statistics;
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/**
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* Statistics resource implementation.
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*/
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@Path("/v2.0/metrics/statistics")
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public class StatisticResource {
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private static final Splitter COMMA_SPLITTER = Splitter.on(',').omitEmptyStrings().trimResults();
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private final String admin_role;
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private final StatisticRepo repo;
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private final PersistUtils persistUtils;
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@Inject
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public StatisticResource(ApiConfig config, StatisticRepo repo, PersistUtils persistUtils) {
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this.admin_role = (config.middleware == null || config.middleware.adminRole == null)
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? DEFAULT_ADMIN_ROLE : config.middleware.adminRole;
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this.repo = repo;
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this.persistUtils = persistUtils;
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}
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@GET
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@Timed
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@Produces(MediaType.APPLICATION_JSON)
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public Object get(
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@Context UriInfo uriInfo,
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@HeaderParam("X-Tenant-Id") String tenantId,
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@HeaderParam("X-Roles") String roles,
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@QueryParam("name") String name,
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@QueryParam("dimensions") String dimensionsStr,
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@QueryParam("start_time") String startTimeStr,
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@QueryParam("end_time") String endTimeStr,
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@QueryParam("statistics") String statisticsStr,
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@DefaultValue("300") @QueryParam("period") String periodStr,
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@QueryParam("offset") String offset,
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@QueryParam("limit") String limit,
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@QueryParam("tenant_id") String crossTenantId,
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@QueryParam("merge_metrics") String mergeMetricsFlag) throws Exception {
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// Validate query parameters
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Validation.validateNotNullOrEmpty(name, "name");
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DateTime startTime = Validation.parseAndValidateDate(startTimeStr, "start_time", true);
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DateTime endTime = Validation.parseAndValidateDate(endTimeStr, "end_time", false);
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Validation.validateTimes(startTime, endTime);
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Validation.validateNotNullOrEmpty(statisticsStr, "statistics");
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int period = Validation.parseAndValidateNumber(periodStr, "period");
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List<String> statistics =
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Validation.parseValidateAndNormalizeStatistics(COMMA_SPLITTER.split(statisticsStr));
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Map<String, String> dimensions =
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Strings.isNullOrEmpty(dimensionsStr) ? null : Validation
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.parseAndValidateDimensions(dimensionsStr);
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MetricNameValidation.validate(name, true);
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Boolean mergeMetricsFlagBool = Validation.validateAndParseMergeMetricsFlag(mergeMetricsFlag);
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String queryTenantId = Validation.getQueryProject(roles, crossTenantId, tenantId, admin_role);
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return Links.paginateStatistics(this.persistUtils.getLimit(limit),
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repo.find(queryTenantId, name, dimensions, startTime, endTime,
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statistics, period, offset,
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this.persistUtils.getLimit(limit),
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mergeMetricsFlagBool),
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uriInfo);
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}
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}
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