com.amazonaws.util.json.JsonUtils.getJsonWriter()方法的使用及代码示例

x33g5p2x  于2022-01-21 转载在 其他  
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本文整理了Java中com.amazonaws.util.json.JsonUtils.getJsonWriter()方法的一些代码示例，展示了JsonUtils.getJsonWriter()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。JsonUtils.getJsonWriter()方法的具体详情如下：
包路径：com.amazonaws.util.json.JsonUtils
类名称：JsonUtils
方法名：getJsonWriter

JsonUtils.getJsonWriter介绍

[英]Gets a JSON writer. If no JSON engine is available, an AmazonClientException will be thrown.
[中]获取一个JSON编写器。如果没有可用的JSON引擎，将抛出AmazonClientException。

代码示例

代码示例来源：origin: aws-amplify/aws-sdk-android

/**
 * Constructs a new instance of JSONPolicyWriter.
 */
public JsonPolicyWriter() {
  writer = new StringWriter();
  jsonWriter = JsonUtils.getJsonWriter(writer);
}

代码示例来源：origin: aws-amplify/aws-sdk-android

/**
 * Encode a string to string map as a JSON string.
 *
 * @param map map to be encoded
 * @return a non null JSON string
 */
public static String mapToString(Map<String, String> map) {
  if (map == null || map.isEmpty()) {
    return "{}";
  }
  try {
    StringWriter out = new StringWriter();
    AwsJsonWriter writer = getJsonWriter(out);
    writer.beginObject();
    for (Map.Entry<String, String> entry : map.entrySet()) {
      writer.name(entry.getKey()).value(entry.getValue());
    }
    writer.endObject();
    writer.close();
    return out.toString();
  } catch (IOException e) {
    throw new AmazonClientException("Unable to serialize to JSON String.", e);
  }
}

代码示例来源：origin: aws-amplify/aws-sdk-android

try {
  StringWriter stringWriter = new StringWriter();
  AwsJsonWriter jsonWriter = JsonUtils.getJsonWriter(stringWriter);
  if (createAppRequest.getCreateApplicationRequest() != null) {
    CreateApplicationRequest createApplicationRequest = createAppRequest

代码示例来源：origin: aws-amplify/aws-sdk-android

String toJson() throws IOException {
  final StringWriter out = new StringWriter();
  JsonUtils.getJsonWriter(out)
      .beginObject()
      .name("s3")
      .beginObject()
      .name("bucket").value(bucket)
      .name("key").value(key)
      .name("region").value(regionId)
      .endObject()
      .endObject()
      .close();
  return out.toString();
}

代码示例来源：origin: aws-amplify/aws-sdk-android

try {
  StringWriter stringWriter = new StringWriter();
  AwsJsonWriter jsonWriter = JsonUtils.getJsonWriter(stringWriter);
  jsonWriter.beginObject();

代码示例来源：origin: aws-amplify/aws-sdk-android

@Override
  public String serialize() {
    StringWriter out = new StringWriter();
    AwsJsonWriter writer = JsonUtils.getJsonWriter(out);
    try {
      writer.beginObject()
          .name("pauseType").value(TYPE)
          .name("bucketName").value(bucketName)
          .name("key").value(key)
          .name("file").value(file)
          .name("multipartUploadId").value(multipartUploadId)
          .name("partSize").value(partSize)
          .name("mutlipartUploadThreshold").value(mutlipartUploadThreshold)
          .endObject().close();
    } catch (IOException e) {
      throw new IllegalStateException(e);
    }
    return out.toString();
  }
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testDate() throws IOException {
  Date d = new Date(1423875641895L);
  String target = "1423875641.895";
  JsonUtils.setJsonEngine(JsonEngine.Gson);
  StringWriter out = new StringWriter();
  // This is wrapped in an array so that Gson doesn't complain about
  // invalid JSON encoding
  JsonUtils.getJsonWriter(out)
      .beginArray().value(d).endArray()
      .close();
  assertEquals("[" + target + "]", out.toString());
  out.getBuffer().setLength(0); // clear string writer
  JsonUtils.setJsonEngine(JsonEngine.Jackson);
  JsonUtils.getJsonWriter(out)
      .beginArray().value(d).endArray()
      .close();
  assertEquals("[" + target + "]", out.toString());
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testByteBuffer() throws IOException {
  ByteBuffer bb = generateByteBuffer(16);
  // Note: the target string is back filled with the output of the above
  // byte buffer
  String target = "AAECAwQFBgcICQoLDA0ODw==";
  JsonUtils.setJsonEngine(JsonEngine.Gson);
  StringWriter out = new StringWriter();
  JsonUtils.getJsonWriter(out)
      .beginArray().value(bb).endArray()
      .close();
  assertEquals("[\"" + target + "\"]", out.toString());
  out.getBuffer().setLength(0);
  JsonUtils.setJsonEngine(JsonEngine.Jackson);
  JsonUtils.getJsonWriter(out)
      .beginArray().value(bb).endArray()
      .close();
  assertEquals("[\"" + target + "\"]", out.toString());
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testBigDecimalJsonUnmarshaller() throws Exception {
  BigDecimal bd = new BigDecimal("1.5");
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("bd");
  jw.value(bd.toPlainString());
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.BigDecimalJsonUnmarshaller bdUnmarshaller = SimpleTypeJsonUnmarshallers.BigDecimalJsonUnmarshaller
      .getInstance();
  BigDecimal unmarshalledBD = bdUnmarshaller.unmarshall(context);
  assertEquals(unmarshalledBD.toPlainString(), bd.toPlainString());
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testBigIntegerJsonUnmarshaller() throws Exception {
  BigInteger bi = new BigInteger("13459712934871293847891231293874");
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("bi");
  jw.value(bi.toString());
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.BigIntegerJsonUnmarshaller biUnmarshaller = SimpleTypeJsonUnmarshallers.BigIntegerJsonUnmarshaller
      .getInstance();
  BigInteger unmarshalledBI = biUnmarshaller.unmarshall(context);
  assertEquals(unmarshalledBI.toString(), bi.toString());
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testByteBufferJsonUnmarshaller() throws Exception {
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("bb");
  jw.value(Base64.encodeAsString("byte".getBytes(StringUtils.UTF8)));
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.ByteBufferJsonUnmarshaller bbUnmarshaller = SimpleTypeJsonUnmarshallers.ByteBufferJsonUnmarshaller
      .getInstance();
  ByteBuffer unmarshalledBb = bbUnmarshaller.unmarshall(context);
  ByteBuffer expected = ByteBuffer.wrap("byte".getBytes(StringUtils.UTF8));
  assertTrue(unmarshalledBb.equals(expected));
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testDateJsonUnmarshaller() throws Exception {
  Date date = new Date();
  date.setTime(1000);
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("date");
  jw.value(date);
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.DateJsonUnmarshaller dateUnmarshaller = SimpleTypeJsonUnmarshallers.DateJsonUnmarshaller
      .getInstance();
  Date unmarshalledDate = dateUnmarshaller.unmarshall(context);
  assertEquals(unmarshalledDate.getTime(), date.getTime());
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testFloatJsonUnmarshaller() throws Exception {
  Float f = new Float(5.5);
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("f");
  jw.value(f);
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.FloatJsonUnmarshaller fUnmarshaller = SimpleTypeJsonUnmarshallers.FloatJsonUnmarshaller
      .getInstance();
  Float unmarshalledF = fUnmarshaller.unmarshall(context);
  assertEquals(unmarshalledF.floatValue(), 5.5, .001);
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testDoubleJsonUnmarshaller() throws Exception {
  Double dub = new Double(5.5);
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("dub");
  jw.value(dub);
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.DoubleJsonUnmarshaller dubUnmarshaller = SimpleTypeJsonUnmarshallers.DoubleJsonUnmarshaller
      .getInstance();
  Double unmarshalledDub = dubUnmarshaller.unmarshall(context);
  assertEquals(unmarshalledDub.doubleValue(), 5.5, .001);
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testLongJsonUnmarshaller() throws Exception {
  Long l = new Long(5L);
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("l");
  jw.value(l);
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.LongJsonUnmarshaller lUnmarshaller = SimpleTypeJsonUnmarshallers.LongJsonUnmarshaller
      .getInstance();
  Long unmarshalledL = lUnmarshaller.unmarshall(context);
  assertEquals(unmarshalledL.longValue(), 5L);
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testIntegerJsonUnmarshaller() throws Exception {
  Integer i = new Integer(5);
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("i");
  jw.value(i);
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.IntegerJsonUnmarshaller iUnmarshaller = SimpleTypeJsonUnmarshallers.IntegerJsonUnmarshaller
      .getInstance();
  Integer unmarshalledI = iUnmarshaller.unmarshall(context);
  assertEquals(unmarshalledI.intValue(), 5);
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testByteJsonUnmarshaller() throws Exception {
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("b");
  jw.value(Byte.valueOf("127"));
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.ByteJsonUnmarshaller bUnmarshaller = SimpleTypeJsonUnmarshallers.ByteJsonUnmarshaller
      .getInstance();
  Byte unmarshalledB = bUnmarshaller.unmarshall(context);
  Byte expected = Byte.valueOf("127");
  assertTrue(unmarshalledB.equals(expected));
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testStringJsonUnmarshaller() throws Exception {
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("s");
  jw.value("String");
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.StringJsonUnmarshaller sUnmarshaller = SimpleTypeJsonUnmarshallers.StringJsonUnmarshaller
      .getInstance();
  assertEquals(sUnmarshaller.unmarshall(context), "String");
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testBooleanJsonUnmarshaller() throws Exception {
  StringWriter sw = new StringWriter();
  AwsJsonWriter jw = JsonUtils.getJsonWriter(sw);
  jw.beginObject();
  jw.name("boolean");
  jw.value("true");
  jw.endObject();
  String json = sw.toString();
  StringReader sr = new StringReader(json);
  AwsJsonReader jr = JsonUtils.getJsonReader(sr);
  JsonUnmarshallerContext context = new JsonUnmarshallerContext(jr);
  context.getReader().beginObject();
  context.getReader().nextName();
  SimpleTypeJsonUnmarshallers.BooleanJsonUnmarshaller bUnmarshaller = SimpleTypeJsonUnmarshallers.BooleanJsonUnmarshaller
      .getInstance();
  Boolean unmarshalledB = bUnmarshaller.unmarshall(context);
  assertTrue(unmarshalledB);
}

代码示例来源：origin: aws-amplify/aws-sdk-android

@Test
public void testJsonWriter() throws IOException {
  StringWriter out = new StringWriter();
  AwsJsonWriter writer = JsonUtils.getJsonWriter(out);
  writer.beginObject()
      .name("string").value("string")
      .name("long").value(123)
      .name("double").value(123.45)
      .name("null").value()
      .name("true").value(true)
      .name("false").value(false)
      .name("encoding").value("Chloë")
      .name("array").beginArray()
      .value("string").value(123).value(123.45).value().value(true).value(false)
      .endArray()
      .name("object").beginObject().endObject()
      .endObject().close();
  String json = out.toString();
  assertEquals("same json", JSON_STRING, json);
}

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