[webMethods] How to invoke a Flow Service from a Java Service and get its output values

Problem
假設我要呼叫另外一個 flow service，此 flow service 沒有 input parameter，會回傳一個 output parameter，parameter name 為 isAlive

若我要透過 Java code 呼叫此 flow service，且取得其 output value 的話，該怎麼撰寫?


How-To

若呼叫 flow service 的方式是 synchronous，以下為 code snippet:

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try { // Invokes any service published on the server with the given input arguments. IData iData = Service.doInvoke("test.work", "Ping_Server", IDataFactory.create()); // Returns a String representation of the value at the specified key. String isAlive = IDataUtil.getString(iData.getCursor(), "isAlive"); } catch (Exception e1) { e1.printStackTrace(); }

若呼叫 flow service 的方式是 asynchronous，以下為 code snippet:

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try { // Invokes any service published on the server as a thread ServiceThread serviceThread = Service.doThreadInvoke("test.work", "Ping_Server", session, IDataFactory.create()); // Returns the pipeline from the service running in this service thread. IData iData = serviceThread.getIData(); // Returns a String representation of the value at the specified key. String isAlive = IDataUtil.getString(iData.getCursor(), "isAlive"); loggerAsync(session, " is Alive = " + isAlive); } catch (Exception e) { e.printStackTrace(); }