Package co.cask.cdap.common.http

Examples of co.cask.cdap.common.http.HttpResponse

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  protected abstract String getAuthorizationToken();

  protected boolean isAvailable() {
    try {
      HttpResponse response = doGet("explore/status");
      return HttpResponseStatus.OK.getCode() == response.getResponseCode();
    } catch (Exception e) {
      LOG.info("Caught exception when checking Explore availability", e);
      return false;
    }
  }
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      return false;
    }
  }

  protected QueryHandle doEnableExplore(String datasetInstance) throws ExploreException {
    HttpResponse response = doPost(String.format("data/explore/datasets/%s/enable", datasetInstance), null, null);
    if (HttpResponseStatus.OK.getCode() == response.getResponseCode()) {
      return QueryHandle.fromId(parseResponseAsMap(response, "handle"));
    }
    throw new ExploreException("Cannot enable explore on dataset " + datasetInstance + ". Reason: " +
                                 getDetails(response));
  }
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    throw new ExploreException("Cannot enable explore on dataset " + datasetInstance + ". Reason: " +
                                 getDetails(response));
  }

  protected QueryHandle doDisableExplore(String datasetInstance) throws ExploreException {
    HttpResponse response = doPost(String.format("data/explore/datasets/%s/disable", datasetInstance), null, null);
    if (HttpResponseStatus.OK.getCode() == response.getResponseCode()) {
      return QueryHandle.fromId(parseResponseAsMap(response, "handle"));
    }
    throw new ExploreException("Cannot disable explore on dataset " + datasetInstance + ". Reason: " +
                                 getDetails(response));
  }
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                                 getDetails(response));
  }

  @Override
  public QueryHandle execute(String statement) throws ExploreException {
    HttpResponse response = doPost("data/explore/queries", GSON.toJson(ImmutableMap.of("query", statement)), null);
    if (HttpResponseStatus.OK.getCode() == response.getResponseCode()) {
      return QueryHandle.fromId(parseResponseAsMap(response, "handle"));
    }
    throw new ExploreException("Cannot execute query. Reason: " + getDetails(response));
  }
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    throw new ExploreException("Cannot execute query. Reason: " + getDetails(response));
  }

  @Override
  public QueryStatus getStatus(QueryHandle handle) throws ExploreException, HandleNotFoundException {
    HttpResponse response = doGet(String.format("data/explore/queries/%s/%s", handle.getHandle(), "status"));
    if (HttpResponseStatus.OK.getCode() == response.getResponseCode()) {
      return parseJson(response, QueryStatus.class);
    } else if (HttpResponseStatus.NOT_FOUND.getCode() == response.getResponseCode()) {
      throw new HandleNotFoundException("Handle " + handle.getHandle() + "not found.");
    }
    throw new ExploreException("Cannot get status. Reason: " + getDetails(response));
  }
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    throw new ExploreException("Cannot get status. Reason: " + getDetails(response));
  }

  @Override
  public List<ColumnDesc> getResultSchema(QueryHandle handle) throws ExploreException, HandleNotFoundException {
    HttpResponse response = doGet(String.format("data/explore/queries/%s/%s", handle.getHandle(), "schema"));
    if (HttpResponseStatus.OK.getCode() == response.getResponseCode()) {
      return parseJson(response, COL_DESC_LIST_TYPE);
    } else if (HttpResponseStatus.NOT_FOUND.getCode() == response.getResponseCode()) {
      throw new HandleNotFoundException("Handle " + handle.getHandle() + "not found.");
    }
    throw new ExploreException("Cannot get result schema. Reason: " + getDetails(response));
  }
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    throw new ExploreException("Cannot get result schema. Reason: " + getDetails(response));
  }

  @Override
  public List<QueryResult> nextResults(QueryHandle handle, int size) throws ExploreException, HandleNotFoundException {
    HttpResponse response = doPost(String.format("data/explore/queries/%s/%s", handle.getHandle(), "next"),
                                   GSON.toJson(ImmutableMap.of("size", size)), null);
    if (HttpResponseStatus.OK.getCode() == response.getResponseCode()) {
      return parseJson(response, ROW_LIST_TYPE);
    } else if (HttpResponseStatus.NOT_FOUND.getCode() == response.getResponseCode()) {
      throw new HandleNotFoundException("Handle " + handle.getHandle() + "not found.");
    }
    throw new ExploreException("Cannot get next results. Reason: " + getDetails(response));
  }
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  }

  @Override
  public List<QueryResult> previewResults(QueryHandle handle)
    throws ExploreException, HandleNotFoundException, SQLException {
    HttpResponse response = doPost(String.format("data/explore/queries/%s/%s", handle.getHandle(), "preview"),
                                   null, null);
    if (HttpResponseStatus.OK.getCode() == response.getResponseCode()) {
      return parseJson(response, ROW_LIST_TYPE);
    } else if (HttpResponseStatus.NOT_FOUND.getCode() == response.getResponseCode()) {
      throw new HandleNotFoundException("Handle " + handle.getHandle() + "not found.");
    }
    throw new ExploreException("Cannot get results preview. Reason: " + getDetails(response));
  }
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    throw new ExploreException("Cannot get results preview. Reason: " + getDetails(response));
  }

  @Override
  public void close(QueryHandle handle) throws ExploreException, HandleNotFoundException {
    HttpResponse response = doDelete(String.format("data/explore/queries/%s", handle.getHandle()));
    if (HttpResponseStatus.OK.getCode() == response.getResponseCode()) {
      return;
    } else if (HttpResponseStatus.NOT_FOUND.getCode() == response.getResponseCode()) {
      throw new HandleNotFoundException("Handle " + handle.getHandle() + "not found.");
    }
    throw new ExploreException("Cannot close operation. Reason: " + getDetails(response));
  }
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  }

  @Override
  public List<QueryInfo> getQueries() throws ExploreException, SQLException {

    HttpResponse response = doGet("data/explore/queries/");
    if (HttpResponseStatus.OK.getCode() == response.getResponseCode()) {
      return parseJson(response, QUERY_INFO_LIST_TYPE);
    }
    throw new ExploreException("Cannot get list of queries. Reason: " + getDetails(response));
  }
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Related Classes of co.cask.cdap.common.http.HttpResponse

  • co.cask.cdap.client.ApplicationClient
  • co.cask.cdap.client.DatasetClient
  • co.cask.cdap.client.DatasetModuleClient
  • co.cask.cdap.client.DatasetTypeClient
  • co.cask.cdap.client.MetricsClient
  • co.cask.cdap.client.MonitorClient
  • co.cask.cdap.client.ProcedureClient
  • co.cask.cdap.client.ProgramClient
  • co.cask.cdap.client.QueryClient
  • co.cask.cdap.client.ServiceClient
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