api - Salesforce WebServiceCallout.invoke 方法的参数是什么？

Question

我想知道 Salesforce 用于调用远程 Web 服务的调用方法的参数。我有一个应该能够调用的服务，但该服务 WSDL 没有定义安全要求，因此我希望可以手动添加该信息(该服务使用通过 Soap header 传递的 WS-Security)。

这是我(认为我)到目前为止所知道的:

WebServiceCallout.invoke(
  Class servicePort, //Usually set to "this", contains httpheader info as well as ? 
  request_x, //Request object, defining schema, properties, and field order
  response_map_x, //Response object, defining schema, properties, and field order
  new String[]{
  String endpoint, //Endpoint of the service
  String ?, //what is this?
  String methodSchema, //Schema for the request object?
  String method, //Name of the request method?
  String responseSchema, //Schema for the response object?
  String response, //Name of the response object?
  String responseClass} //Name of the Apex class the response will be converted to
);

有人可以帮忙填补空白吗？

Answer 1

这是我迄今为止发现的 WebServiceCallout.invoke 内容:

Object servicePort - A class with the following variables:
  String enpoint_x: containing the service endpoint (not sure if necessary)
  Map<String,String> inputHttpHeaders_x: custom httpHeaders
  Map<String,String> outputHttpHeaders_x: I think this is the httpHeaders that were returned
  String clientCertName_x: Used in configuring an SSL cert?
  String clientCert_x: Used in configuring an SSL cert?
  String clientCertPassword: Used in configuring an SSL cert?
  Integer timeout_x: How long (in milliseconds?) to wait for the response
  String[] ns_map_type_info: The first String is the namespace of the service schema, the second is the name of the object that contains the Apex classes defining the schema objects
Object request_x - The Apex object that will form the XML schema object
Map<String, Object> response_map_x - Object is the object that the result is to be unserialized into. String is the name of Object variable.
String[] {
  endpoint - The service endpoint
  soapAction - If the service call requires a soapAction, put it here. Otherwise leave blank.
  methodSchema - Schema for the request object
  method - Name of the request method
  responseSchema Schema for the response
  responseClass The Apex class that the response will be unserialized into
}

此外，可以通过在 servicePort 类中创建对象来插入 Soap header 以及具有相同变量名+“_hns”的字符串，指定该对象的命名空间:

public SoapSecurity Security;
private String Security_hns = "Security=http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd";

apex XML 模式对象应包含每个子元素(或属性)的变量。变量名称与特定模式匹配的数组定义了对象变量在 xml 中的使用方式。

给出以下示例 XML:

<foo a="b"><bar>baz</bar></foo>

Apex 类将是这样的:

public class MyService {
   public class bar {
      public String bar;
      private String[] bar_type_info = new String[] {'bar','http://www.w3.org/2001/XMLSchema','string','0','1','true'};
      private String[] apex_schema_type_info = new String[] {'http://schema.myservice.com', 'false', 'false'};
      private String[] field_order_type_info = new String[] {'bar'};
   }

   public class foo {
      public MyService.bar bar;
      public String a;
      private String[] bar_type_info = new String[] {'bar','http://schema.myservice.com','bar','0','1','true'};
      private String[] a_att_info = new String[] {'a'};
      private String apex_schema_type_info = new String[] {'http://schema.myservice.com','false','false'};
      private String[] field_order_type_info = new String[] {'bar'};
   }
}

以下是这些对象的(简要)分割:

如果变量表示另一个 XML 元素或文本节点，则需要有一个匹配的 _type_info String[]，例如酒吧类型信息。该数组的元素是:1. XML元素名称2. 架构3.XML类型4.minOccurrs5. maxOccurs(设置为“-1”表示无界)6. isNillable

如果变量代表一个属性，那么必须有一个匹配的_att_info String[]，例如a_type_info。 Thise 仅包含属性的 XML 名称。

请注意，如果类变量名称是保留字，则会在其后附加 _x，例如酒吧_x。这会影响其他变量名称:bar_x_type_info。 Apex 开发人员指南解释了他们的名称规则，但如果您手动创建它，我认为您可以给它任何您想要的名称 - 数组决定 XML 元素名称...

我还没有找到一种方法来表示还包含属性的简单 XML 类型:例如

<foo bar="baz">bar</foo>

apex_schema_type_info 数组指定有关该类表示的 XML 元素的信息:1. 架构2. 如果 elementFormDefault="qualified"，则为“true”3. 如果 attributeFormDefault="qualified"，则为“true”

我对 2 和 3 的实际作用仍然相当模糊，但它似乎会影响子元素(和属性)继承父命名空间的方式(无论是隐含的还是必须在生成的 XML 中指定)。

field_order_type_info 只是指定子元素的顺序。

请随时纠正或澄清...