ms/packages/amqp/src/adapter/converter.ts

38 lines
1.9 KiB
TypeScript

const JavaString = Java.type('java.lang.String')
const MessageProperties = org.springframework.amqp.core.MessageProperties
const Message = org.springframework.amqp.core.Message
export const MessageConverter = Java.type('org.springframework.amqp.support.converter.MessageConverter')
export class MessageConverterAdapter {
private _Handler: org.springframework.amqp.support.converter.MessageConverter
constructor() {
var MessageConverterImpl = Java.extend(MessageConverter, {
toMessage: (object: any, messageProperties: org.springframework.amqp.core.MessageProperties) => this.toMessage(object, messageProperties),
fromMessage: (message: org.springframework.amqp.core.Message) => this.fromMessage(message)
})
this._Handler = new MessageConverterImpl()
}
toMessage(object: any, messageProperties: org.springframework.amqp.core.MessageProperties) {
if (typeof object == "string") {
messageProperties.setContentType(MessageProperties.CONTENT_TYPE_TEXT_PLAIN)
return new Message(new JavaString(object).getBytes(), messageProperties)
} else {
messageProperties.setContentType(MessageProperties.CONTENT_TYPE_JSON)
return new Message(new JavaString(JSON.stringify(object)).getBytes(), messageProperties)
}
}
fromMessage(message: org.springframework.amqp.core.Message) {
if (message.getMessageProperties().getContentType() == MessageProperties.CONTENT_TYPE_TEXT_PLAIN) {
return new JavaString(message.getBody(), message.getMessageProperties().getContentEncoding())
}
if (message.getMessageProperties().getContentType() == MessageProperties.CONTENT_TYPE_JSON) {
return JSON.parse(new JavaString(message.getBody(), message.getMessageProperties().getContentEncoding()))
}
return message
}
getHandler() {
return this._Handler
}
}