命名了Talend自定义组件 - 除了tTutorialRow不工作(Naming a Talend

2019-10-20 18:06发布

我一直在关注了Talend 教程中的“如何创建自定义组件”。 如果我效法一字不差,与我的文件命名如下,并放置在文件夹内tTutorialRow ,本教程的工作原理:

tTutorialRow_java.xml
tTutorialRow_messages.properties
tTutorialRow_begin.javajet
tTutorialRow_main.javajet
tTutorialRow_end.javajet

这是使用下面的代码:

tTutorialRow_java.xml:

<COMPONENT>
  <HEADER
    PLATEFORM="ALL"
    SERIAL=""
    VERSION="2.0"
    STATUS="ALPHA"

    COMPATIBILITY="ALL"
    AUTHOR="Talend"
    RELEASE_DATE="20070525A"
    STARTABLE="false"
  >
    <SIGNATURE/>
  </HEADER>

  <FAMILIES> 
    <FAMILY>Helium</FAMILY> 
  </FAMILIES> 

  <DOCUMENTATION>
    <URL/>
  </DOCUMENTATION>

  <CONNECTORS>
    <CONNECTOR CTYPE="FLOW" MAX_INPUT="1"/>
    <CONNECTOR CTYPE="ITERATE" MAX_OUTPUT="1" MAX_INPUT="1"/>
    <CONNECTOR CTYPE="SUBJOB_OK" MAX_INPUT="1" />
    <CONNECTOR CTYPE="SUBJOB_ERROR" MAX_INPUT="1" />
    <CONNECTOR CTYPE="COMPONENT_OK" />
    <CONNECTOR CTYPE="COMPONENT_ERROR" />
    <CONNECTOR CTYPE="RUN_IF" />
  </CONNECTORS>

  <PARAMETERS>
    <PARAMETER NAME="ADDRESSES" FIELD="TABLE" REQUIRED="true" NUM_ROW="3" NB_LINES="5" SHOW="true">
      <ITEMS BASED_ON_SCHEMA="false">
        <ITEM NAME="USERNAME" />
        <ITEM NAME="DOMAIN" />
      </ITEMS>
    </PARAMETER>
  </PARAMETERS>

  <CODEGENERATION/>

  <RETURNS>
    <RETURN NAME="NB_LINE" TYPE="id_Integer" AVAILABILITY="AFTER"/>
  </RETURNS>

</COMPONENT>

tTutorialRow_messages.properties:

LONG_NAME=Tutorial component
HELP=org.talend.help.TutorialRow

NB_LINE.NAME=Number of lines
ADDRESSES.ITEM.USERNAME=Username
ADDRESSES.ITEM.DOMAIN=Domain
ADDRESSES.NAME=Addresses

tTutorialRow_begin.javajet:

<%@ jet 
    imports="
        org.talend.core.model.process.INode 
        org.talend.core.model.process.ElementParameterParser 
        org.talend.core.model.metadata.IMetadataTable 
        org.talend.core.model.metadata.IMetadataColumn 
        org.talend.core.model.process.IConnection
        org.talend.core.model.process.IConnectionCategory
        org.talend.designer.codegen.config.CodeGeneratorArgument
        org.talend.core.model.metadata.types.JavaTypesManager
        org.talend.core.model.metadata.types.JavaType
        java.util.List 
        java.util.Map       
    " 
%>
<% 
    CodeGeneratorArgument codeGenArgument = (CodeGeneratorArgument) argument;
    INode node = (INode)codeGenArgument.getArgument();
    String cid = node.getUniqueName();  
    List<Map<String, String>> lines = (List<Map<String,String>>)ElementParameterParser.getObjectValue(node, "__ADDRESSES__");
%> 
java.util.List<String> addresses_<%=cid %> = new java.util.ArrayList<String>();
<%
  for (int i=0; i<lines.size(); i++) {
    Map<String, String> line = lines.get(i);
%>
    addresses_<%=cid %>.add(<%= line.get("USERNAME") %> + "@" + <%= line.get("DOMAIN") %>);
<%
  }
%>
int nb_line_<%=cid %> = 0;

tTutorialRow_main.javajet:

<%@ jet 
    imports="
        org.talend.core.model.process.INode 
        org.talend.core.model.process.ElementParameterParser 
        org.talend.core.model.metadata.IMetadataTable 
        org.talend.core.model.metadata.IMetadataColumn 
        org.talend.core.model.process.IConnection
        org.talend.core.model.process.IConnectionCategory
        org.talend.designer.codegen.config.CodeGeneratorArgument
        org.talend.core.model.metadata.types.JavaTypesManager
        org.talend.core.model.metadata.types.JavaType
        java.util.List 
        java.util.Map       
    " 
%>
<% 
    CodeGeneratorArgument codeGenArgument = (CodeGeneratorArgument) argument;
    INode node = (INode)codeGenArgument.getArgument();
    String cid = node.getUniqueName();  
%>
    String[] adresses_<%=cid %> = addresses_<%=cid %>.toArray(new String[] {});

    System.out.print(nb_line_<%=cid %>++ + ": ");
    for (int i_<%=cid %> = 0; i_<%=cid %> < adresses_<%=cid %>.length; i_<%=cid %>++ )
    {
      System.out.print(adresses_<%=cid %>[i_<%=cid %>]);
      if (i_<%=cid %> < adresses_<%=cid %>.length-1) System.out.print(",");
    }   
    System.out.println();

tTutorialRow_end.javajet:

<%@ jet 
    imports="
        org.talend.core.model.process.INode 
        org.talend.core.model.process.ElementParameterParser 
        org.talend.core.model.metadata.IMetadataTable 
        org.talend.core.model.metadata.IMetadataColumn 
        org.talend.core.model.process.IConnection
        org.talend.core.model.process.IConnectionCategory
        org.talend.designer.codegen.config.CodeGeneratorArgument
        org.talend.core.model.metadata.types.JavaTypesManager
        org.talend.core.model.metadata.types.JavaType
        java.util.List 
        java.util.Map       
    " 
%>
<% 
    CodeGeneratorArgument codeGenArgument = (CodeGeneratorArgument) argument;
    INode node = (INode)codeGenArgument.getArgument();
    String cid = node.getUniqueName();  
%>   
    globalMap.put("<%=cid %>_NB_LINE",nb_line_<%=cid %>);

如果我更改文件名来自:

tTutorialRow_java.xml
tTutorialRow_messages.properties
tTutorialRow_begin.javajet
tTutorialRow_main.javajet
tTutorialRow_end.javajet

至:

myProject_java.xml
myProject_messages.properties
myProject_begin.javajet
myProject_main.javajet
myProject_end.javajet

并更新文件夹名称myProject的,添加成分不再起作用。 我怎样才能用新名称添加的组件?

谢谢!

Answer 1:

答案是,有对在Talend集成的自定义组件特定的命名细节/要求。

以下工作:

我必须包括我的命名主要文件夹内的文件夹tProjectName ,包含:

tProjectName_begin.javajet
tProjectName_end.javajet
tProjectName_icon32.png
tProjectName_java.xml
tProjectName_main.javajet
tProjectName_message.properties

这些文件并没有从这个计算器问题的问题部分格式在所有的内部变化。



文章来源: Naming a Talend Custom Component - Not working except for tTutorialRow
标签: java xml talend