Examples of org.jdom.xpath.XPath.selectSingleNode()

org.jdom.xpath.XPath.selectSingleNode()
Evaluates the wrapped XPath expression and returns the first entry in the list of selected nodes (or atomics). @param context the node to use as context for evaluatingthe XPath expression. @return the first selected item, which may be of types: {@link Element}, {@link Attribute}, {@link Text}, {@link CDATA}, {@link Comment}, {@link ProcessingInstruction}, Boolean, Double, String, or null if no item was selected. @throws JDOMException if the evaluation of the XPathexpression on the specified context failed.

      ArrayList<String> stateList = new ArrayList<String>();
      
      try {
        String jobChainname = getCommandAttribute("job_chain");        
        XPath x3 = XPath.newInstance("//job_chain[@name='"+ jobChainname + "']");
        Element jobChain = (Element)x3.selectSingleNode(_dom.getDoc());
        
        if(jobChain == null) {
          jobChainname = getCommandAttribute("job_chain_node.job_chain");
          x3 = XPath.newInstance("//job_chain_node.job_chain[@name='"+ jobChainname + "']");
            jobChain = (Element)x3.selectSingleNode(_dom.getDoc());

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        Element jobChain = (Element)x3.selectSingleNode(_dom.getDoc());
        
        if(jobChain == null) {
          jobChainname = getCommandAttribute("job_chain_node.job_chain");
          x3 = XPath.newInstance("//job_chain_node.job_chain[@name='"+ jobChainname + "']");
            jobChain = (Element)x3.selectSingleNode(_dom.getDoc());
              
        }
        if(jobChain == null)
          return retVal;

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      ArrayList stateList = new ArrayList();
      
      try {
        String jobChainname = Utils.getAttributeValue("job_chain", getCommand());        
        XPath x3 = XPath.newInstance("//job_chain[@name='"+ jobChainname + "']");
        Element jobChain = (Element)x3.selectSingleNode(_dom.getDoc());
        
        if(jobChain == null) {
          jobChainname = Utils.getAttributeValue("job_chain_node.job_chain", getCommand()); 
          x3 = XPath.newInstance("//job_chain_node.job_chain[@name='"+ jobChainname + "']");
            jobChain = (Element)x3.selectSingleNode(_dom.getDoc());

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        Element jobChain = (Element)x3.selectSingleNode(_dom.getDoc());
        
        if(jobChain == null) {
          jobChainname = Utils.getAttributeValue("job_chain_node.job_chain", getCommand()); 
          x3 = XPath.newInstance("//job_chain_node.job_chain[@name='"+ jobChainname + "']");
            jobChain = (Element)x3.selectSingleNode(_dom.getDoc());
            
        }
        if(jobChain == null)
          return retVal;

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        final XPath hint = XPath.newInstance( "//component[position()=1]/role-hint/text()" );
        final XPath implementation = XPath.newInstance( "//component[position()=1]/implementation/text()" );


        assertEquals( "role", ( (Text) role.selectSingleNode( doc ) ).getText() );
        assertNull( hint.selectSingleNode( doc ) );
        assertEquals( "impl", ( (Text) implementation.selectSingleNode( doc ) ).getText() );
    }


    public void testAddToArchive_ShouldWriteComponentWithHintToFile()
        throws IOException, ArchiverException, JDOMException
    {

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        final XPath hint = XPath.newInstance( "//component[position()=1]/role-hint/text()" );
        final XPath implementation = XPath.newInstance( "//component[position()=1]/implementation/text()" );


        assertEquals( "role", ( (Text) role.selectSingleNode( doc ) ).getText() );
        assertEquals( "hint", ( (Text) hint.selectSingleNode( doc ) ).getText() );
        assertEquals( "impl", ( (Text) implementation.selectSingleNode( doc ) ).getText() );
    }


    public void testAddToArchive_ShouldWriteTwoComponentToFile()
        throws IOException, ArchiverException, JDOMException
    {

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        final XPath hint = XPath.newInstance( "//component[position()=1]/role-hint/text()" );
        final XPath implementation = XPath.newInstance( "//component[position()=1]/implementation/text()" );


        assertEquals( "role", ( (Text) role.selectSingleNode( doc ) ).getText() );
        assertEquals( "hint", ( (Text) hint.selectSingleNode( doc ) ).getText() );
        assertEquals( "impl", ( (Text) implementation.selectSingleNode( doc ) ).getText() );


        final XPath role2 = XPath.newInstance( "//component[position()=2]/role/text()" );
        final XPath hint2 = XPath.newInstance( "//component[position()=2]/role-hint/text()" );
        final XPath implementation2 = XPath.newInstance( "//component[position()=2]/implementation/text()" );

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        final XPath hint2 = XPath.newInstance( "//component[position()=2]/role-hint/text()" );
        final XPath implementation2 = XPath.newInstance( "//component[position()=2]/implementation/text()" );


        assertEquals( "role", ( (Text) role2.selectSingleNode( doc ) ).getText() );
        assertEquals( "hint2", ( (Text) hint2.selectSingleNode( doc ) ).getText() );
        assertEquals( "impl", ( (Text) implementation2.selectSingleNode( doc ) ).getText() );


    }


    public void testAddToArchive_ShouldWriteTwoComponentToArchivedFile()
        throws IOException, ArchiverException, JDOMException

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        final XPath hint = XPath.newInstance( "//component[position()=1]/role-hint/text()" );
        final XPath implementation = XPath.newInstance( "//component[position()=1]/implementation/text()" );


        assertEquals( "role", ( (Text) role.selectSingleNode( doc ) ).getText() );
        assertEquals( "hint", ( (Text) hint.selectSingleNode( doc ) ).getText() );
        assertEquals( "impl", ( (Text) implementation.selectSingleNode( doc ) ).getText() );


        final XPath role2 = XPath.newInstance( "//component[position()=2]/role/text()" );
        final XPath hint2 = XPath.newInstance( "//component[position()=2]/role-hint/text()" );
        final XPath implementation2 = XPath.newInstance( "//component[position()=2]/implementation/text()" );

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        final XPath hint2 = XPath.newInstance( "//component[position()=2]/role-hint/text()" );
        final XPath implementation2 = XPath.newInstance( "//component[position()=2]/implementation/text()" );


        assertEquals( "role", ( (Text) role2.selectSingleNode( doc ) ).getText() );
        assertEquals( "hint2", ( (Text) hint2.selectSingleNode( doc ) ).getText() );
        assertEquals( "impl", ( (Text) implementation2.selectSingleNode( doc ) ).getText() );


    }


    private Xpp3Dom createComponentDom( final ComponentDef def )
    {

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