Handler创建Dispatcher请求调用执行Utility

应用场景

在Handler中执行耗时较久的程序时，等待执行过程中，客户端界面无法进行其他操作，只能等待，而通过dispatcher调度可以解决这种问题。

Handler创建Dispatcher请求

char ProviderName[128]="SIEMENS",					//Provider名称
		ServiceName[128]="bomchange";					//服务名称
int request_args_num= 4;								//参数数量
//request_args为参数值 键值对形式 "key=value",例如"prop=xxx"
const char** request_args = (const char**)MEM_alloc(request_args_num * sizeof(char*));

tag_t trans_rqst=NULLTAG;
logical flag;
int isFinalState =0;
ITKCALL(DISPATCHER_create_request(
	ProviderName,//the name of the provider that will process this request
	ServiceName,//the name of the service that will process this request
	3, //the priority to assign to the request(0 LOW to 3 HIGH)
	0, //the time at which to start this request
	0, //the time at which no more repeating requests of this same type will be processed.  
	//If the interval option for repeating is NOT selected, then this paramater is unused
	0, //the number of times to repeat this request
	// 0 - no repeating
	// 1 2 3 ... - number of times to repeat this task
	1,// the length of the primary and secondary object arrays
	&attachments[i],// the array of primary objects  请求对象
	NULL,//the array of related secondary objects
	request_args_num, //the number of request arguments
	request_args,//the array of request arguments in the format of
	NULL, // a string for use by the application creating the request for use in defining a type for the request (i.e. SYSTEM, THINCLIENT, etc.)
	0, //the number of datafiles you would like to upload
	0, 
	0,
	&trans_rqst));

创建响应

1、创建响应工程

1、创建一个普通的java工程，导入依赖包，依赖包存在于DispatcherClient\lib。
2、创建下图所示的java文件

2、书写响应代码

1、com.origin.bomchange.response.DatabaseOperation.java 代码

package com.origin.bomchange.response;

import java.util.List;

import com.teamcenter.ets.load.DefaultDatabaseOperation;
import com.teamcenter.translationservice.task.TranslationDBMapInfo;

public class DatabaseOperation extends DefaultDatabaseOperation{
	 /**
     * Stores translation result data on the source dataset. If there are
     * existing translation result data files, they may be replaced depending
     * upon the value of the UpdateExistingVisualizationData TaskPrep instance
     * variable.
     *
     * @param zDbMapInfo DB mapper info object.
     * @param zFileList  List of files mapped to the source file.
     *
     * @throws Exception
     */
	public void load( ) throws Exception
    {
    	super.load();
    	System.out.println("load....");
    	
    } // end load()
	
}

2、com.origin.bomchange.response.TaskPrep.java

package com.origin.bomchange.response;

//import com.origin.log.WriteLogUtil;

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintStream;
import java.util.Arrays;
import java.util.List;

import com.teamcenter.ets.extract.DefaultTaskPrep;
import com.teamcenter.ets.request.TranslationRequest;
import com.teamcenter.soa.client.model.ModelObject;
import com.teamcenter.translationservice.task.TranslationTask;

public class TaskPrep extends DefaultTaskPrep {

	public TranslationTask prepareTask() throws Exception {
		System.out.println("=================response=================");
		TranslationTask transTask = new TranslationTask();
		//获取请求对象
		ModelObject primary_objs[] = request.getPropertyObject(
				TranslationRequest.PRIMARY_OBJS).getModelObjectArrayValue();
		//获取输入参数值的键
		String[] argKeys = request.getPropertyObject(
				TranslationRequest.TRANSLATION_ARGS_KEYS).getStringArrayValue();
		//获取输入参数值的值
		String[] argValues = request.getPropertyObject(
				TranslationRequest.TRANSLATION_ARGS_DATA).getStringArrayValue();

		List argKeyList = Arrays.asList(argKeys);
		List argValueList = Arrays.asList(argValues);
		System.out.println(argKeyList);
		System.out.println(argValueList);
		
		String root_uid = "";
		String prop_BFR = "";
		String prop_AFR = "";
		String prop_form = "";
		if (argKeys != null && argKeys.length > 0) {
			for (int i = 0; i < argKeys.length; i++) {

				if (argKeys[i].equals("task_uid") == true) {
					root_uid = argValues[i];
				}else if(argKeys[i].equals("prop_BFR") == true){
					prop_BFR = argValues[i];
				}else if(argKeys[i].equals("prop_AFR") == true){
					prop_AFR = argValues[i];
				}else if(argKeys[i].equals("prop_form") == true){
					prop_form = argValues[i];
				}
			}
		}
		if (primary_objs.length > 0) {
			FileOutputStream output_file = new FileOutputStream(this.stagingLoc
					+ File.separator + "EBOMFileList.txt");
			PrintStream uids_print_stream = new PrintStream(output_file);
			System.out.println("path-->" + this.stagingLoc + File.separator+ "EBOMFileList.txt");
			StringBuffer sb = new StringBuffer("");
			sb.append("object_uid="+primary_objs[0].getUid()+";");
			
			if (!root_uid.equals("")) {
				sb.append("root_uid="+root_uid+";");
			}
			
			if(!prop_BFR.equals("")){
				sb.append("prop_BFR="+prop_BFR+";");
			}
			if(!prop_AFR.equals("")){
				sb.append("prop_AFR="+prop_AFR+";");
			}
			
			if(!prop_form.equals("")){
				sb.append("prop_form="+prop_form+";");
			}
			String s = sb.toString();
			System.out.println("s--->" + s);
			uids_print_stream.print(s.substring(0,s.length() - 1));
			uids_print_stream.close();
			output_file.close();
			transTask = prepTransTask(null, null, null, "EBOMFileList.txt",
					false, false, null, 0, null);
		}
		this.m_zTaskLogger.info("end prepareTask ebomlist ");
		return addRefIdToTask(transTask, 0);
	}
}

响应时，将EBOMFileList.txt生成在Stage相对应的任务文件夹中，将Utility所需要的参数写入txt中。

3、打成jar包

4、将导出的jar包放入DispatcherClient\lib下。

5、修改DispatcherClient\conf下Service.properties文件

1、在import中加入jar包名称"BOMchange"
2、在文件最后加入

Translator.SIEMENS.bomchange.Prepare=com.origin.bomchange.response.TaskPrep
Translator.SIEMENS.bomchange.Duplicate=false

SIEMENS是Handler请求中ProviderName，bomchange是Handler请求中服务名，等号后面是TaskPrep类的全限定名。

6、修改Module\conf下translator.xml文件

1、在标签内加入

BOMchange为jar包名称，SIEMENS为ProviderName，bomchange为ServiceName，dir指定bomchange.bat文件的路径为Translators下bomchange文件夹。

7、书写bomchange.bat，并放在Translators下bomchange文件夹内。

@echo on
set MODULE_PATH=D:\Siemens\DC\Module
set JAVA_HOME=C:\Program Files\Java\jdk1.7.0_45
set DC_PATH=D:\Siemens\DC\Stage\DC
SET TC_ROOT=D:\Siemens\Teamcenter10
SET TC_DATA=D:\Siemens\tcdata
call D:\Siemens\tcdata\tc_profilevars
%MODULE_PATH%\Translators\bomchange\bom_change.exe %1 %DC_PATH% 
@echo off

需根据实际情况修改路径，bat调用exe文件去执行程序。