org.sonar.server.rule.ws.TagsAction.java Source code

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Here is the source code for org.sonar.server.rule.ws.TagsAction.java

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/*
 * SonarQube
 * Copyright (C) 2009-2017 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.server.rule.ws;

import com.google.common.io.Resources;
import java.util.List;
import java.util.Optional;
import javax.annotation.Nullable;
import org.sonar.api.server.ws.Request;
import org.sonar.api.server.ws.Response;
import org.sonar.api.server.ws.WebService;
import org.sonar.api.server.ws.WebService.NewAction;
import org.sonar.api.server.ws.WebService.Param;
import org.sonar.api.utils.text.JsonWriter;
import org.sonar.db.DbClient;
import org.sonar.db.DbSession;
import org.sonar.db.organization.OrganizationDto;
import org.sonar.server.organization.DefaultOrganizationProvider;
import org.sonar.server.rule.index.RuleIndex;
import org.sonar.server.ws.WsUtils;

import static org.sonarqube.ws.client.component.ComponentsWsParameters.PARAM_ORGANIZATION;

public class TagsAction implements RulesWsAction {

    private final RuleIndex ruleIndex;
    private final DbClient dbClient;
    private final DefaultOrganizationProvider defaultOrganizationProvider;

    public TagsAction(RuleIndex ruleIndex, DbClient dbClient,
            DefaultOrganizationProvider defaultOrganizationProvider) {
        this.ruleIndex = ruleIndex;
        this.dbClient = dbClient;
        this.defaultOrganizationProvider = defaultOrganizationProvider;
    }

    @Override
    public void define(WebService.NewController controller) {
        NewAction action = controller.createAction("tags").setDescription("List rule tags").setSince("4.4")
                .setHandler(this).setResponseExample(Resources.getResource(getClass(), "example-tags.json"));

        action.createParam(Param.TEXT_QUERY).setDescription("A pattern to match tags against")
                .setExampleValue("misra");
        action.createParam("ps").setDescription("The size of the list to return, 0 for all tags")
                .setExampleValue("25").setDefaultValue("0");
        action.createParam(PARAM_ORGANIZATION).setDescription("Organization key").setRequired(false)
                .setInternal(true).setExampleValue("my-org").setSince("6.4");
    }

    @Override
    public void handle(Request request, Response response) {
        OrganizationDto organization = getOrganization(request.param(PARAM_ORGANIZATION));
        String query = request.param(Param.TEXT_QUERY);
        int pageSize = request.mandatoryParamAsInt("ps");

        List<String> tags = ruleIndex.listTags(organization, query, pageSize == 0 ? Integer.MAX_VALUE : pageSize);

        writeResponse(response, tags);
    }

    private OrganizationDto getOrganization(@Nullable String organizationKey) {
        try (DbSession dbSession = dbClient.openSession(false)) {
            String organizationOrDefaultKey = Optional.ofNullable(organizationKey)
                    .orElseGet(defaultOrganizationProvider.get()::getKey);
            return WsUtils.checkFoundWithOptional(
                    dbClient.organizationDao().selectByKey(dbSession, organizationOrDefaultKey),
                    "No organization with key '%s'", organizationOrDefaultKey);
        }
    }

    private static void writeResponse(Response response, List<String> tags) {
        JsonWriter json = response.newJsonWriter().beginObject();
        json.name("tags").beginArray();
        tags.forEach(json::value);
        json.endArray().endObject().close();
    }
}