datahub/wherehows-frontend/app/controllers/api/v1/SchemaHistory.java

/**
 * Copyright 2015 LinkedIn Corp. All rights reserved.
 *
 * Licensed 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.
 */
package controllers.api.v1;

import com.fasterxml.jackson.databind.node.ObjectNode;
import dao.SchemaHistoryDAO;
import org.apache.commons.lang3.StringUtils;
import play.Logger;
import play.libs.Json;
import play.mvc.Controller;
import play.mvc.Result;


public class SchemaHistory extends Controller {

  public static Result getPagedDatasets() {
    ObjectNode result = Json.newObject();

    String name = request().getQueryString("name");
    int page = 1;
    String pageStr = request().getQueryString("page");
    if (StringUtils.isBlank(pageStr)) {
      page = 1;
    } else {
      try {
        page = Integer.parseInt(pageStr);
      } catch (NumberFormatException e) {
        Logger.error(
            "SchemaHistory Controller getPagedDatasets wrong page parameter. Error message: " + e.getMessage());
        page = 1;
      }
    }

    Long datasetId = 0L;
    String datasetIdStr = request().getQueryString("datasetId");
    if (StringUtils.isNotBlank(datasetIdStr)) {
      try {
        datasetId = Long.parseLong(datasetIdStr);
      } catch (NumberFormatException e) {
        datasetId = 0L;
      }
    }

    int size = 10;
    String sizeStr = request().getQueryString("size");
    if (StringUtils.isBlank(sizeStr)) {
      size = 10;
    } else {
      try {
        size = Integer.parseInt(sizeStr);
      } catch (NumberFormatException e) {
        Logger.error(
            "SchemaHistory Controller getPagedDatasets wrong size parameter. Error message: " + e.getMessage());
        size = 10;
      }
    }

    result.put("status", "ok");
    result.set("data", SchemaHistoryDAO.getPagedSchemaDataset(name, datasetId, page, size));
    return ok(result);
  }

  public static Result getSchemaHistory(int id) {
    ObjectNode result = Json.newObject();

    result.put("status", "ok");
    result.set("data", Json.toJson(SchemaHistoryDAO.getSchemaHistoryByDatasetID(id)));
    return ok(result);
  }
}