com.google.api.client.util.Types Java Examples

@Override
protected Request map(HttpRequest request) {
    Request.RequestBuilder builder = Request.builder()
            .method(request.getRequestMethod())
            .uri(request.getUrl().toURI())
            .body(serializeContent(request));
    for (Map.Entry<String, Object> entry : request.getHeaders().entrySet()) {
        Object value = entry.getValue();
        if (value instanceof Iterable<?> || value.getClass().isArray()) {
            for (Object repeatedValue : Types.iterableOf(value)) {
                // NOTE: Request is about to throw an exception!
                builder.header(entry.getKey(), toStringValue(repeatedValue));
            }
        } else {
            builder.header(entry.getKey(), toStringValue(value));
        }
    }
    return builder.build();
}
 

private void computeAliases(Object element, SortedSet<String> aliases) {
  for (Map.Entry<String, Object> entry : Data.mapOf(element).entrySet()) {
    Object value = entry.getValue();
    if (value != null) {
      String name = entry.getKey();
      if (!Xml.TEXT_CONTENT.equals(name)) {
        int colon = name.indexOf(':');
        boolean isAttribute = name.charAt(0) == '@';
        if (colon != -1 || !isAttribute) {
          String alias = colon == -1 ? "" : name.substring(name.charAt(0) == '@' ? 1 : 0, colon);
          aliases.add(alias);
        }
        Class<?> valueClass = value.getClass();
        if (!isAttribute && !Data.isPrimitive(valueClass) && !valueClass.isEnum()) {
          if (value instanceof Iterable<?> || valueClass.isArray()) {
            for (Object subValue : Types.iterableOf(value)) {
              computeAliases(subValue, aliases);
            }
          } else {
            computeAliases(value, aliases);
          }
        }
      }
    }
  }
}
 

/** Sets the entry classes to use when parsing. */
public void setEntryClasses(Class<?>... entryClasses) {
  int numEntries = entryClasses.length;
  HashMap<String, Class<?>> kindToEntryClassMap = this.kindToEntryClassMap;
  for (int i = 0; i < numEntries; i++) {
    Class<?> entryClass = entryClasses[i];
    ClassInfo typeInfo = ClassInfo.of(entryClass);
    Field field = typeInfo.getField("@gd:kind");
    if (field == null) {
      throw new IllegalArgumentException("missing @gd:kind field for " + entryClass.getName());
    }
    Object entry = Types.newInstance(entryClass);
    String kind = (String) FieldInfo.getFieldValue(field, entry);
    if (kind == null) {
      throw new IllegalArgumentException(
          "missing value for @gd:kind field in " + entryClass.getName());
    }
    kindToEntryClassMap.put(kind, entryClass);
  }
}
 

public void writeTo(OutputStream out) throws IOException {
  Writer writer = new BufferedWriter(new OutputStreamWriter(out, getCharset()));
  boolean first = true;
  for (Map.Entry<String, Object> nameValueEntry : Data.mapOf(data).entrySet()) {
    Object value = nameValueEntry.getValue();
    if (value != null) {
      String name = CharEscapers.escapeUri(nameValueEntry.getKey());
      Class<? extends Object> valueClass = value.getClass();
      if (value instanceof Iterable<?> || valueClass.isArray()) {
        for (Object repeatedValue : Types.iterableOf(value)) {
          first = appendParam(first, writer, name, repeatedValue);
        }
      } else {
        first = appendParam(first, writer, name, value);
      }
    }
  }
  writer.flush();
}
 

/**
 * Returns an unmodifiable list of the header string values for the given header name.
 *
 * @param name header name (may be any case)
 * @return header string values or empty if not found
 * @since 1.13
 */
public List<String> getHeaderStringValues(String name) {
  Object value = get(name.toLowerCase(Locale.US));
  if (value == null) {
    return Collections.emptyList();
  }
  Class<? extends Object> valueClass = value.getClass();
  if (value instanceof Iterable<?> || valueClass.isArray()) {
    List<String> values = new ArrayList<String>();
    for (Object repeatedValue : Types.iterableOf(value)) {
      values.add(toStringValue(repeatedValue));
    }
    return Collections.unmodifiableList(values);
  }
  return Collections.singletonList(toStringValue(value));
}
 

/**
 * Returns the first header string value for the given header name.
 *
 * @param name header name (may be any case)
 * @return first header string value or {@code null} if not found
 * @since 1.13
 */
public String getFirstHeaderStringValue(String name) {
  Object value = get(name.toLowerCase(Locale.US));
  if (value == null) {
    return null;
  }
  Class<? extends Object> valueClass = value.getClass();
  if (value instanceof Iterable<?> || valueClass.isArray()) {
    for (Object repeatedValue : Types.iterableOf(value)) {
      return toStringValue(repeatedValue);
    }
  }
  return toStringValue(value);
}
 

@Override
public Object parseAndClose(Reader reader, Type dataType) throws IOException {
    Preconditions.checkArgument(
            dataType instanceof Class<?>, "dataType has to be of type Class<?>");

    Object newInstance = Types.newInstance((Class<?>) dataType);
    parse(new BufferedReader(reader), newInstance);
    return newInstance;
}
 

@Override
protected Object parseEntryInternal() throws IOException, XmlPullParserException {
  XmlPullParser parser = getParser();
  String kind = parser.getAttributeValue(GoogleAtom.GD_NAMESPACE, "kind");
  Class<?> entryClass = this.kindToEntryClassMap.get(kind);
  if (entryClass == null) {
    throw new IllegalArgumentException("unrecognized kind: " + kind);
  }
  Object result = Types.newInstance(entryClass);
  Xml.parseElement(parser, result, getNamespaceDictionary(), null);
  return result;
}
 

public Object parseAndClose(Reader reader, Type dataType) throws IOException {
  Preconditions.checkArgument(
      dataType instanceof Class<?>, "dataType has to be of type Class<?>");

  Object newInstance = Types.newInstance((Class<?>) dataType);
  parse(new BufferedReader(reader), newInstance);
  return newInstance;
}
 

static void serializeHeaders(
    HttpHeaders headers,
    StringBuilder logbuf,
    StringBuilder curlbuf,
    Logger logger,
    LowLevelHttpRequest lowLevelHttpRequest,
    Writer writer)
    throws IOException {
  HashSet<String> headerNames = new HashSet<String>();
  for (Map.Entry<String, Object> headerEntry : headers.entrySet()) {
    String name = headerEntry.getKey();
    Preconditions.checkArgument(
        headerNames.add(name),
        "multiple headers of the same name (headers are case insensitive): %s",
        name);
    Object value = headerEntry.getValue();
    if (value != null) {
      // compute the display name from the declared field name to fix capitalization
      String displayName = name;
      FieldInfo fieldInfo = headers.getClassInfo().getFieldInfo(name);
      if (fieldInfo != null) {
        displayName = fieldInfo.getName();
      }
      Class<? extends Object> valueClass = value.getClass();
      if (value instanceof Iterable<?> || valueClass.isArray()) {
        for (Object repeatedValue : Types.iterableOf(value)) {
          addHeader(
              logger, logbuf, curlbuf, lowLevelHttpRequest, displayName, repeatedValue, writer);
        }
      } else {
        addHeader(logger, logbuf, curlbuf, lowLevelHttpRequest, displayName, value, writer);
      }
    }
  }
  if (writer != null) {
    writer.flush();
  }
}
 

/**
 * Parse the feed and return a new parsed instance of the feed type. This method can be skipped if
 * all you want are the items.
 *
 * @throws IOException I/O exception
 * @throws XmlPullParserException XML pull parser exception
 */
public T parseFeed() throws IOException, XmlPullParserException {
  boolean close = true;
  try {
    this.feedParsed = true;
    T result = Types.newInstance(feedClass);
    Xml.parseElement(parser, result, namespaceDictionary, Atom.StopAtAtomEntry.INSTANCE);
    close = false;
    return result;
  } finally {
    if (close) {
      close();
    }
  }
}
 

private Object readObject(XmlPullParser parser, Type dataType)
    throws XmlPullParserException, IOException {
  Preconditions.checkArgument(dataType instanceof Class<?>, "dataType has to be of Class<?>");
  Object result = Types.newInstance((Class<?>) dataType);
  Xml.parseElement(parser, result, namespaceDictionary, null);
  return result;
}
 

@Override
protected Object parseEntryInternal() throws IOException, XmlPullParserException {
  E result = Types.newInstance(entryClass);
  Xml.parseElement(getParser(), result, getNamespaceDictionary(), null);
  return result;
}
 

/** Parses the specified case-insensitive header pair into this HttpHeaders instance. */
void parseHeader(String headerName, String headerValue, ParseHeaderState state) {
  List<Type> context = state.context;
  ClassInfo classInfo = state.classInfo;
  ArrayValueMap arrayValueMap = state.arrayValueMap;
  StringBuilder logger = state.logger;

  if (logger != null) {
    logger.append(headerName + ": " + headerValue).append(StringUtils.LINE_SEPARATOR);
  }
  // use field information if available
  FieldInfo fieldInfo = classInfo.getFieldInfo(headerName);
  if (fieldInfo != null) {
    Type type = Data.resolveWildcardTypeOrTypeVariable(context, fieldInfo.getGenericType());
    // type is now class, parameterized type, or generic array type
    if (Types.isArray(type)) {
      // array that can handle repeating values
      Class<?> rawArrayComponentType =
          Types.getRawArrayComponentType(context, Types.getArrayComponentType(type));
      arrayValueMap.put(
          fieldInfo.getField(),
          rawArrayComponentType,
          parseValue(rawArrayComponentType, context, headerValue));
    } else if (Types.isAssignableToOrFrom(
        Types.getRawArrayComponentType(context, type), Iterable.class)) {
      // iterable that can handle repeating values
      @SuppressWarnings("unchecked")
      Collection<Object> collection = (Collection<Object>) fieldInfo.getValue(this);
      if (collection == null) {
        collection = Data.newCollectionInstance(type);
        fieldInfo.setValue(this, collection);
      }
      Type subFieldType = type == Object.class ? null : Types.getIterableParameter(type);
      collection.add(parseValue(subFieldType, context, headerValue));
    } else {
      // parse value based on field type
      fieldInfo.setValue(this, parseValue(type, context, headerValue));
    }
  } else {
    // store header values in an array list
    @SuppressWarnings("unchecked")
    ArrayList<String> listValue = (ArrayList<String>) this.get(headerName);
    if (listValue == null) {
      listValue = new ArrayList<String>();
      this.set(headerName, listValue);
    }
    listValue.add(headerValue);
  }
}
 

private void serialize(boolean isJsonString, Object value) throws IOException {
  if (value == null) {
    return;
  }
  Class<?> valueClass = value.getClass();
  if (Data.isNull(value)) {
    writeNull();
  } else if (value instanceof String) {
    writeString((String) value);
  } else if (value instanceof Number) {
    if (isJsonString) {
      writeString(value.toString());
    } else if (value instanceof BigDecimal) {
      writeNumber((BigDecimal) value);
    } else if (value instanceof BigInteger) {
      writeNumber((BigInteger) value);
    } else if (value instanceof Long) {
      writeNumber((Long) value);
    } else if (value instanceof Float) {
      float floatValue = ((Number) value).floatValue();
      Preconditions.checkArgument(!Float.isInfinite(floatValue) && !Float.isNaN(floatValue));
      writeNumber(floatValue);
    } else if (value instanceof Integer || value instanceof Short || value instanceof Byte) {
      writeNumber(((Number) value).intValue());
    } else {
      double doubleValue = ((Number) value).doubleValue();
      Preconditions.checkArgument(!Double.isInfinite(doubleValue) && !Double.isNaN(doubleValue));
      writeNumber(doubleValue);
    }
  } else if (value instanceof Boolean) {
    writeBoolean((Boolean) value);
  } else if (value instanceof DateTime) {
    writeString(((DateTime) value).toStringRfc3339());
  } else if ((value instanceof Iterable<?> || valueClass.isArray())
      && !(value instanceof Map<?, ?>)
      && !(value instanceof GenericData)) {
    writeStartArray();
    for (Object o : Types.iterableOf(value)) {
      serialize(isJsonString, o);
    }
    writeEndArray();
  } else if (valueClass.isEnum()) {
    String name = FieldInfo.of((Enum<?>) value).getName();
    if (name == null) {
      writeNull();
    } else {
      writeString(name);
    }
  } else {
    writeStartObject();
    // only inspect fields of POJO (possibly extends GenericData) but not generic Map
    boolean isMapNotGenericData = value instanceof Map<?, ?> && !(value instanceof GenericData);
    ClassInfo classInfo = isMapNotGenericData ? null : ClassInfo.of(valueClass);
    for (Map.Entry<String, Object> entry : Data.mapOf(value).entrySet()) {
      Object fieldValue = entry.getValue();
      if (fieldValue != null) {
        String fieldName = entry.getKey();
        boolean isJsonStringForField;
        if (isMapNotGenericData) {
          isJsonStringForField = isJsonString;
        } else {
          Field field = classInfo.getField(fieldName);
          isJsonStringForField = field != null && field.getAnnotation(JsonString.class) != null;
        }
        writeFieldName(fieldName);
        serialize(isJsonStringForField, fieldValue);
      }
    }
    writeEndObject();
  }
}
 

private static void appendFieldsFor(
    StringBuilder fieldsBuf, Class<?> dataClass, int[] numFields) {
  if (Map.class.isAssignableFrom(dataClass) || Collection.class.isAssignableFrom(dataClass)) {
    throw new IllegalArgumentException(
        "cannot specify field mask for a Map or Collection class: " + dataClass);
  }
  ClassInfo classInfo = ClassInfo.of(dataClass);
  for (String name : new TreeSet<String>(classInfo.getNames())) {
    FieldInfo fieldInfo = classInfo.getFieldInfo(name);
    if (fieldInfo.isFinal()) {
      continue;
    }
    if (++numFields[0] != 1) {
      fieldsBuf.append(',');
    }
    fieldsBuf.append(name);
    // TODO(yanivi): handle Java arrays?
    Class<?> fieldClass = fieldInfo.getType();
    if (Collection.class.isAssignableFrom(fieldClass)) {
      // TODO(yanivi): handle Java collection of Java collection or Java map?
      fieldClass = (Class<?>) Types.getIterableParameter(fieldInfo.getField().getGenericType());
    }
    // TODO(yanivi): implement support for map when server implements support for *:*
    if (fieldClass != null) {
      if (fieldInfo.isPrimitive()) {
        if (name.charAt(0) != '@' && !name.equals("text()")) {
          // TODO(yanivi): wait for bug fix from server to support text() -- already fixed???
          // buf.append("/text()");
        }
      } else if (!Collection.class.isAssignableFrom(fieldClass)
          && !Map.class.isAssignableFrom(fieldClass)) {
        int[] subNumFields = new int[1];
        int openParenIndex = fieldsBuf.length();
        fieldsBuf.append('(');
        // TODO(yanivi): abort if found cycle to avoid infinite loop
        appendFieldsFor(fieldsBuf, fieldClass, subNumFields);
        updateFieldsBasedOnNumFields(fieldsBuf, openParenIndex, subNumFields[0]);
      }
    }
  }
}
 

/**
 * Parses the next field from the given JSON parser into the given destination object.
 *
 * @param context destination context stack (possibly empty)
 * @param destination destination object instance or {@code null} for none (for example empty
 *     context stack)
 * @param customizeParser optional parser customizer or {@code null} for none
 */
private void parse(
    ArrayList<Type> context, Object destination, CustomizeJsonParser customizeParser)
    throws IOException {
  if (destination instanceof GenericJson) {
    ((GenericJson) destination).setFactory(getFactory());
  }
  JsonToken curToken = startParsingObjectOrArray();
  Class<?> destinationClass = destination.getClass();
  ClassInfo classInfo = ClassInfo.of(destinationClass);
  boolean isGenericData = GenericData.class.isAssignableFrom(destinationClass);
  if (!isGenericData && Map.class.isAssignableFrom(destinationClass)) {
    // The destination class is not a sub-class of GenericData but is of Map, so parse data
    // using parseMap.
    @SuppressWarnings("unchecked")
    Map<String, Object> destinationMap = (Map<String, Object>) destination;
    parseMap(
        null,
        destinationMap,
        Types.getMapValueParameter(destinationClass),
        context,
        customizeParser);
    return;
  }
  while (curToken == JsonToken.FIELD_NAME) {
    String key = getText();
    nextToken();
    // stop at items for feeds
    if (customizeParser != null && customizeParser.stopAt(destination, key)) {
      return;
    }
    // get the field from the type information
    FieldInfo fieldInfo = classInfo.getFieldInfo(key);
    if (fieldInfo != null) {
      // skip final fields
      if (fieldInfo.isFinal() && !fieldInfo.isPrimitive()) {
        throw new IllegalArgumentException("final array/object fields are not supported");
      }
      Field field = fieldInfo.getField();
      int contextSize = context.size();
      context.add(field.getGenericType());
      Object fieldValue =
          parseValue(
              field, fieldInfo.getGenericType(), context, destination, customizeParser, true);
      context.remove(contextSize);
      fieldInfo.setValue(destination, fieldValue);
    } else if (isGenericData) {
      // store unknown field in generic JSON
      GenericData object = (GenericData) destination;
      object.set(key, parseValue(null, null, context, destination, customizeParser, true));
    } else {
      // unrecognized field, skip value.
      if (customizeParser != null) {
        customizeParser.handleUnrecognizedKey(destination, key);
      }
      skipChildren();
    }
    curToken = nextToken();
  }
}
 

void serialize(XmlSerializer serializer, String elementNamespaceUri, String elementLocalName)
    throws IOException {
  boolean errorOnUnknown = this.errorOnUnknown;
  if (elementLocalName == null) {
    if (errorOnUnknown) {
      throw new IllegalArgumentException("XML name not specified");
    }
    elementLocalName = "unknownName";
  }
  serializer.startTag(elementNamespaceUri, elementLocalName);
  // attributes
  int num = attributeNames.size();
  for (int i = 0; i < num; i++) {
    String attributeName = attributeNames.get(i);
    int colon = attributeName.indexOf(':');
    String attributeLocalName = attributeName.substring(colon + 1);
    String attributeNamespaceUri =
        colon == -1
            ? null
            : getNamespaceUriForAliasHandlingUnknown(
                errorOnUnknown, attributeName.substring(0, colon));
    serializer.attribute(
        attributeNamespaceUri, attributeLocalName, toSerializedValue(attributeValues.get(i)));
  }
  // text
  if (textValue != null) {
    serializer.text(toSerializedValue(textValue));
  }
  // elements
  num = subElementNames.size();
  for (int i = 0; i < num; i++) {
    Object subElementValue = subElementValues.get(i);
    String subElementName = subElementNames.get(i);
    Class<? extends Object> valueClass = subElementValue.getClass();
    if (subElementValue instanceof Iterable<?> || valueClass.isArray()) {
      for (Object subElement : Types.iterableOf(subElementValue)) {
        if (subElement != null && !Data.isNull(subElement)) {
          new ElementSerializer(subElement, errorOnUnknown)
              .serialize(serializer, subElementName);
        }
      }
    } else {
      new ElementSerializer(subElementValue, errorOnUnknown)
          .serialize(serializer, subElementName);
    }
  }
  serializer.endTag(elementNamespaceUri, elementLocalName);
}