Examples of org.restlet.representation.Representation

org.restlet.representation.Representation
om/pubs/dissertation/rest_arch_style.htm#sec_5_2_1_2" >Source dissertation @author Jerome Louvel

    request.setEntity(
        JsonParameters.JSON_PARAMETERS + "=" + ClusterRepresentationUtil.ObjectToJson(paraMap),
        MediaType.APPLICATION_ALL);
    Response response = _gClient.handle(request);


    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);


    // System.out.println(sw.toString());


    ObjectMapper mapper = new ObjectMapper();
    ZNRecord r = mapper.readValue(new StringReader(sw.toString()), ZNRecord.class);


    for (int i = 0; i < partitions; i++) {
      String partitionName = resourceGroupName + "_" + i;
      assert (r.getMapField(partitionName).size() == replicas);
    }


    httpUrlBase = "http://localhost:" + ADMIN_PORT + "/clusters/" + clusterName;
    resourceRef = new Reference(httpUrlBase);
    request = new Request(Method.GET, resourceRef);


    response = _gClient.handle(request);


    result = response.getEntity();
    sw = new StringWriter();
    result.write(sw);


  }

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    request.setEntity(
        JsonParameters.JSON_PARAMETERS + "=" + ClusterRepresentationUtil.ObjectToJson(paraMap),
        MediaType.APPLICATION_ALL);
    Response response = _gClient.handle(request);


    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);


    // System.out.println(sw.toString());


    ObjectMapper mapper = new ObjectMapper();
    ZNRecord r = mapper.readValue(new StringReader(sw.toString()), ZNRecord.class);
    AssertJUnit.assertTrue(r.getSimpleField(InstanceConfigProperty.HELIX_ENABLED.toString())
        .equals("" + false));


    // Then enable it
    paraMap.put(JsonParameters.ENABLED, "" + true);
    request = new Request(Method.POST, resourceRef);


    request.setEntity(
        JsonParameters.JSON_PARAMETERS + "=" + ClusterRepresentationUtil.ObjectToJson(paraMap),
        MediaType.APPLICATION_ALL);
    response = _gClient.handle(request);


    result = response.getEntity();
    sw = new StringWriter();
    result.write(sw);


    // System.out.println(sw.toString());


    mapper = new ObjectMapper();
    r = mapper.readValue(new StringReader(sw.toString()), ZNRecord.class);

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    Reference resourceRef = new Reference(httpUrlBase);
    Request request = new Request(Method.GET, resourceRef);


    Response response = _gClient.handle(request);


    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);


    // System.out.println(sw.toString());


    ObjectMapper mapper = new ObjectMapper();
    ZNRecord r = mapper.readValue(new StringReader(sw.toString()), ZNRecord.class);
    String partitionName = "new-entity-12345_3";
    r.getMapFields().remove(partitionName);


    Map<String, String> paraMap = new HashMap<String, String>();
    // Add 1 instance
    paraMap.put(JsonParameters.MANAGEMENT_COMMAND, ClusterSetup.addIdealState);


    resourceRef = new Reference(httpUrlBase);


    request = new Request(Method.POST, resourceRef);
    request.setEntity(
        JsonParameters.JSON_PARAMETERS + "=" + ClusterRepresentationUtil.ObjectToJson(paraMap)
            + "&" + JsonParameters.NEW_IDEAL_STATE + "="
            + ClusterRepresentationUtil.ZNRecordToJson(r), MediaType.APPLICATION_ALL);
    response = _gClient.handle(request);


    result = response.getEntity();
    sw = new StringWriter();
    result.write(sw);


    // System.out.println(sw.toString());


    mapper = new ObjectMapper();
    ZNRecord r2 = mapper.readValue(new StringReader(sw.toString()), ZNRecord.class);

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  }


  private ZNRecord get(Client client, String url, ObjectMapper mapper) throws Exception {
    Request request = new Request(Method.GET, new Reference(url));
    Response response = client.handle(request);
    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);
    String responseStr = sw.toString();
    Assert.assertTrue(responseStr.toLowerCase().indexOf("error") == -1);
    Assert.assertTrue(responseStr.toLowerCase().indexOf("exception") == -1);


    ZNRecord record = mapper.readValue(new StringReader(responseStr), ZNRecord.class);

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    request.setEntity(
        JsonParameters.JSON_PARAMETERS + "=" + ClusterRepresentationUtil.ObjectToJson(params),
        MediaType.APPLICATION_ALL);


    Response response = client.handle(request);
    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);
    String responseStr = sw.toString();
    Assert.assertTrue(responseStr.toLowerCase().indexOf("error") == -1);
    Assert.assertTrue(responseStr.toLowerCase().indexOf("exception") == -1);
  }

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    request.setEntity(
        JsonParameters.JSON_PARAMETERS + "=" + ClusterRepresentationUtil.ObjectToJson(paramMap),
        MediaType.APPLICATION_ALL);
    Response response = _gClient.handle(request);


    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);


    System.out.println(sw.toString());


    // verify pause znode exists
    String pausePath = PropertyPathConfig.getPath(PropertyType.PAUSE, clusterName);
    System.out.println("pausePath: " + pausePath);
    boolean exists = _gZkClient.exists(pausePath);
    Assert.assertTrue(exists, pausePath + " should exist");


    // Then enable it
    paramMap.put(JsonParameters.ENABLED, "" + true);
    request = new Request(Method.POST, resourceRef);


    request.setEntity(
        JsonParameters.JSON_PARAMETERS + "=" + ClusterRepresentationUtil.ObjectToJson(paramMap),
        MediaType.APPLICATION_ALL);
    response = _gClient.handle(request);


    result = response.getEntity();
    sw = new StringWriter();
    result.write(sw);


    System.out.println(sw.toString());


    // verify pause znode doesn't exist
    exists = _gZkClient.exists(pausePath);

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    Request request = new Request(Method.POST, resourceRef);
    request.setEntity(
        JsonParameters.JSON_PARAMETERS + "="
            + ClusterRepresentationUtil.ObjectToJson(jsonParameters), MediaType.APPLICATION_ALL);
    Response response = _gClient.handle(request);
    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);


    Assert.assertTrue(response.getStatus().getCode() == Status.SUCCESS_OK.getCode());
    Assert.assertTrue(hasException == sw.toString().toLowerCase().contains("exception"));
    return sw.toString();
  }

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    for (String key : extraForm.keySet()) {
      entity = entity + "&" + (key + "=" + extraForm.get(key));
    }
    request.setEntity(entity, MediaType.APPLICATION_ALL);
    Response response = _gClient.handle(request);
    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);


    Assert.assertTrue(response.getStatus().getCode() == Status.SUCCESS_OK.getCode());
    Assert.assertTrue(hasException == sw.toString().toLowerCase().contains("exception"));
    return sw.toString();
  }

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  void deleteUrl(String url, boolean hasException) throws IOException {
    Reference resourceRef = new Reference(url);
    Request request = new Request(Method.DELETE, resourceRef);
    Response response = _gClient.handle(request);
    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);
    Assert.assertTrue(hasException == sw.toString().toLowerCase().contains("exception"));
  }

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  String getUrl(String url) throws IOException {
    Reference resourceRef = new Reference(url);
    Request request = new Request(Method.GET, resourceRef);
    Response response = _gClient.handle(request);
    Representation result = response.getEntity();
    StringWriter sw = new StringWriter();
    result.write(sw);
    return sw.toString();
  }

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