如何使用XSLT-1.0累积满足每组节点的特定条件的值

Question

我的.xml文件包含4种标记元素。

Element-1（产品）：它包含名为id，PartNumber和序列号的属性。

Element-2（RelationalRef）：它包含名为“ relatedRef”的属性，其中前半部分表示“产品元素ID”，后半部分表示“ CharValue元素ID”。

Element-3（CharValue）：它包含名为“ defRef”的属性，该属性表示“ CharDef元素ID”。

Element-4（CharDef）：它包含名为“ id，name”的属性。

要求： 针对Product元素中的每个零件号，在相应的“ CharDef名称”列中打印相应的序列号和累积的“ CharValue”。

如何对我的测试样本的每个组中满足特定条件的一组节点的属性值求和。以下xml数据是输入样本。

<?xml version="1.0" encoding="UTF-8"?>
<Root>
    <Product id="id111" partNumber="LRU1" serialNumber="xyz1"> </Product>
    <Product id="id112" partNumber="LRU2" serialNumber="xyz2"> </Product>
    <Product id="id113" partNumber="LRU3" serialNumber="xyz3"> </Product>
    <Product id="id114" partNumber="LRU4" serialNumber="xyz4"> </Product>
    <Product id="id115" partNumber="LRU5" serialNumber="xyz5"> </Product>

    <RelationalRef id="id211" relatedRef="#id111 #id311"> </RelationalRef>
    <RelationalRef id="id212" relatedRef="#id111 #id312"> </RelationalRef>
    <RelationalRef id="id213" relatedRef="#id111 #id313"> </RelationalRef>
    <RelationalRef id="id214" relatedRef="#id111 #id314"> </RelationalRef>
    <RelationalRef id="id215" relatedRef="#id111 #id315"> </RelationalRef>
    <RelationalRef id="id216" relatedRef="#id111 #id316"> </RelationalRef>
    <RelationalRef id="id217" relatedRef="#id111 #id317"> </RelationalRef>
    <RelationalRef id="id218" relatedRef="#id111 #id318"> </RelationalRef>
    <RelationalRef id="id219" relatedRef="#id111 #id319"> </RelationalRef>
    <RelationalRef id="id220" relatedRef="#id111 #id320"> </RelationalRef>
    <RelationalRef id="id221" relatedRef="#id111 #id321"> </RelationalRef>
    <RelationalRef id="id222" relatedRef="#id111 #id322"> </RelationalRef>
    <RelationalRef id="id223" relatedRef="#id112 #id323"> </RelationalRef>
    <RelationalRef id="id224" relatedRef="#id112 #id324"> </RelationalRef>
    <RelationalRef id="id225" relatedRef="#id112 #id325"> </RelationalRef>
    <RelationalRef id="id226" relatedRef="#id112 #id319"> </RelationalRef>
    <RelationalRef id="id227" relatedRef="#id112 #id321"> </RelationalRef>
    <RelationalRef id="id228" relatedRef="#id112 #id322"> </RelationalRef>
    <RelationalRef id="id229" relatedRef="#id113 #id326"> </RelationalRef>
    <RelationalRef id="id230" relatedRef="#id113 #id327"> </RelationalRef>
    <RelationalRef id="id231" relatedRef="#id113 #id316"> </RelationalRef>
    <RelationalRef id="id232" relatedRef="#id113 #id318"> </RelationalRef>
    <RelationalRef id="id233" relatedRef="#id113 #id320"> </RelationalRef>
    <RelationalRef id="id234" relatedRef="#id113 #id322"> </RelationalRef>
    <RelationalRef id="id235" relatedRef="#id114 #id328"> </RelationalRef>
    <RelationalRef id="id236" relatedRef="#id114 #id329"> </RelationalRef>
    <RelationalRef id="id237" relatedRef="#id114 #id319"> </RelationalRef>
    <RelationalRef id="id238" relatedRef="#id114 #id322"> </RelationalRef>
    <RelationalRef id="id239" relatedRef="#id115 #id330"> </RelationalRef>
    <RelationalRef id="id240" relatedRef="#id115 #id331"> </RelationalRef>
    <RelationalRef id="id241" relatedRef="#id115 #id316"> </RelationalRef>
    <RelationalRef id="id242" relatedRef="#id115 #id317"> </RelationalRef>
    <RelationalRef id="id243" relatedRef="#id115 #id320"> </RelationalRef>
    <RelationalRef id="id244" relatedRef="#id115 #id321"> </RelationalRef>

    <CharValue id="id311" defRef="#id411" value="2"> </CharValue>
    <CharValue id="id312" defRef="#id412" value="1"> </CharValue>
    <CharValue id="id313" defRef="#id413" value="2"> </CharValue>
    <CharValue id="id314" defRef="#id414" value="120"> </CharValue>
    <CharValue id="id315" defRef="#id411" value="1"> </CharValue>
    <CharValue id="id316" defRef="#id412" value="2"> </CharValue>
    <CharValue id="id317" defRef="#id413" value="4"> </CharValue>
    <CharValue id="id318" defRef="#id414" value="50"> </CharValue>
    <CharValue id="id319" defRef="#id411" value="3"> </CharValue>
    <CharValue id="id320" defRef="#id412" value="1"> </CharValue>
    <CharValue id="id321" defRef="#id413" value="1"> </CharValue>
    <CharValue id="id322" defRef="#id414" value="80"> </CharValue>
    <CharValue id="id323" defRef="#id411" value="2"> </CharValue>
    <CharValue id="id324" defRef="#id413" value="4"> </CharValue>
    <CharValue id="id325" defRef="#id414" value="150"> </CharValue>
    <CharValue id="id326" defRef="#id412" value="6"> </CharValue>
    <CharValue id="id327" defRef="#id414" value="600"> </CharValue>
    <CharValue id="id328" defRef="#id411" value="25"> </CharValue>
    <CharValue id="id329" defRef="#id414" value="750"> </CharValue>
    <CharValue id="id330" defRef="#id412" value="2"> </CharValue>
    <CharValue id="id331" defRef="#id413" value="300"> </CharValue>

    <CharDef id="id411" name="NoOfLandings"> </CharDef>
    <CharDef id="id412" name="NoOfStreams"> </CharDef>
    <CharDef id="id413" name="NoOfStarts"> </CharDef>
    <CharDef id="id414" name="consumedLifeInMins"> </CharDef>
</Root>

以上元素通过属性引用链接起来。

我尝试了以下xslt程序。

我尝试过的程序说明： 最初，我根据前半个属性（“ relatedRef”）值对“ RelationalRef”节点（使用for-each循环）进行了分组。随后，iam为较早收集的每个组提取不包含“＃”符号的下半属性（“ relatedRef”）值。接下来，iam为满足conditions（1）属性-'id'的'CharValue'节点运行for-each循环，这等于下半部分属性（'relatedRef'）值，而在较早的组中未提取“＃”符号，并且（2）attribute-'defRef'等于'CharDef'节点的第一个id。对于“ CharDef”节点for for-each循环首次收集的for-group的其他id，重复此过程。

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

    <xsl:output method="html" indent="yes"/>    

    <xsl:key name="groupByRefId" match="RelationalRef" use="substring-before(@relatedRef,' ')"/>

    <xsl:template match="/">
      <html>
        <body>
          <p align="center">Consumed Report</p>
          <xsl:call-template name="TableHeadings"/>
        </body>
      </html>
    </xsl:template>

  <xsl:template name="TableHeadings">
      <table border="1" width="90%">
        <tr>
          <th align="center">Part Number</th>
          <th align="center">Serial Number</th>
          <th align="center">No. of Landings</th>
          <th align="center">No. of Streams</th>
          <th align="center">No. of Starts</th>
          <th align="center">Consumed Life in Mins</th>
        </tr>
        <xsl:call-template name="ProcessLrus"/>
      </table>
  </xsl:template>

  <xsl:template name="ProcessLrus">
    <xsl:for-each select="//RelationalRef[generate-id(.)=generate-id(key('groupByRefId',substring-before(@relatedRef,' '))[1])]">
      <xsl:variable name="productId" select="substring-before(@relatedRef,' ')"/>

      <tr>

      <td>
        <xsl:value-of select="//Product[concat('#',@id)=$productId]/@partNumber"/>
      </td>       

      <td>
        <xsl:value-of select="//Product[concat('#',@id)=$productId]/@serialNumber"/>
      </td>     

        <xsl:variable name="cumValueForLandings">
      <xsl:for-each select="key('groupByRefId',substring-before(@relatedRef,' '))">
        <xsl:variable name="charValueId" select="substring-after(@relatedRef,' #')"/>
        <xsl:copy-of select="sum(//CharValue[@id=$charValueId and @defRef='#id411']/@value)"/>
      </xsl:for-each>
        </xsl:variable> 

        <td>
          <xsl:value-of select="$cumValueForLandings"/> 
        </td>     

        <xsl:variable name="cumValueForStreams">
          <xsl:for-each select="key('groupByRefId',substring-before(@relatedRef,' '))">
            <xsl:variable name="charValueId" select="substring-after(@relatedRef,' #')"/>
            <xsl:copy-of select="sum(//CharValue[@id=$charValueId and @defRef='#id412']/@value)"/>
          </xsl:for-each>
        </xsl:variable>   

        <td>
          <xsl:value-of select="$cumValueForStreams"/>
        </td>  

       <xsl:variable name="cumValueForStarts">
          <xsl:for-each select="key('groupByRefId',substring-before(@relatedRef,' '))">
            <xsl:variable name="charValueId" select="substring-after(@relatedRef,' #')"/>
            <xsl:copy-of select="sum(//CharValue[@id=$charValueId and @defRef='#id413']/@value)"/>
          </xsl:for-each>
       </xsl:variable>   

        <td>
          <xsl:value-of select="$cumValueForStarts"/>
        </td>       

      </tr> 

    </xsl:for-each>
  </xsl:template>  
</xsl:stylesheet>

使用上面的代码，我得到了一个示例输入.xml文件的以下输出

<html>
   <body>
      <p align="center">Consumed Report</p>
      <table border="1" width="90%">
         <tr>
            <th align="center">Part Number</th>
            <th align="center">Serial Number</th>
            <th align="center">No. of Landings</th>
            <th align="center">No. of Streams</th>
            <th align="center">No. of Starts</th>
            <th align="center">Consumed Life in Mins</th>
         </tr>
         <tr>
            <td>LRU1</td>
            <td>xyz1</td>
            <td>2 0 0 0 1 0 0 0 3 0 0 0</td>
            <td>0 1 0 0 0 2 0 0 0 1 0 0</td>
            <td>0 0 2 0 0 0 4 0 0 0 1 0</td>
         </tr>
         <tr>
            <td>LRU2</td>
            <td>xyz2</td>
            <td>2 0 0 3 0 0</td>
            <td>0 0 0 0 0 0</td>
            <td>0 4 0 0 1 0</td>
         </tr>
         <tr>
            <td>LRU3</td>
            <td>xyz3</td>
            <td>0 0 0 0 0 0</td>
            <td>6 0 2 0 1 0</td>
            <td>0 0 0 0 0 0</td>
         </tr>
         <tr>
            <td>LRU4</td>
            <td>xyz4</td>
            <td>25 0 3 0</td>
            <td>0 0 0 0</td>
            <td>0 0 0 0</td>
         </tr>
         <tr>
            <td>LRU5</td>
            <td>xyz5</td>
            <td>0 0 0 0 0 0</td>
            <td>2 0 2 0 1 0</td>
            <td>0 300 0 4 0 1</td>
         </tr>
      </table>
   </body>
</html>

但是Iam期望以下输出。

<html>
   <body>
      <p align="center">Consumed Report</p>
      <table border="1" width="90%">
         <tr>
            <th align="center">Part Number</th>
            <th align="center">Serial Number</th>
            <th align="center">No. of Landings</th>
            <th align="center">No. of Streams</th>
            <th align="center">No. of Starts</th>
            <th align="center">Consumed Life in Mins</th>
         </tr>
         <tr>
            <td>LRU1</td>
            <td>xyz1</td>
            <td>6</td>
            <td>4</td>
            <td>7</td>
         </tr>
         <tr>
            <td>LRU2</td>
            <td>xyz2</td>
            <td>5</td>
            <td>0</td>
            <td>5</td>
         </tr>
         <tr>
            <td>LRU3</td>
            <td>xyz3</td>
            <td>0</td>
            <td>9</td>
            <td>0</td>
         </tr>
         <tr>
            <td>LRU4</td>
            <td>xyz4</td>
            <td>28</td>
            <td>0</td>
            <td>0</td>
         </tr>
         <tr>
            <td>LRU5</td>
            <td>xyz5</td>
            <td>0</td>
            <td>5</td>
            <td>305</td>
         </tr>
      </table>
   </body>
</html>

请任何人都可以帮助我。