Examples of org.impalaframework.graph.Vertex

org.impalaframework.graph.Vertex
Based on original source code from Apache Avalon: Vertex Vertex is used to track dependencies and each moduleDefinition in a graph. Typical uses would be to ensure components are started up and torn down in the proper order, or bundles were loaded and unloaded in the proper order, etc. @author Avalon Development Team @version CVS $ Revision: 1.1 $

        final ModuleDefinition moduleDefinition = vertex.getModuleDefinition();
        
        final List<String> dependentModuleNames = moduleDefinition.getDependentModuleNames();
        for (String dependent : dependentModuleNames) {
            
            final Vertex dependentVertex = vertexMap.get(dependent);
            
            if (dependentVertex == null) {
                throw new InvalidStateException("Unable to dependency named named '" + dependent 
                        + "' for module definition '" + moduleDefinition.getName() + "'");

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    Assert.notNull(parent, "parent cannot be null");
    Assert.notNull(moduleDefinition, "moduleDefinition cannot be null");
    
    logger.info("With parent '" + parent + "', adding module: " + moduleDefinition);
    
    final Vertex parentVertex = getRequiredVertex(parent);
    
    ModuleDefinition parentDefinition = parentVertex.getModuleDefinition();
    parentDefinition.addChildModuleDefinition(moduleDefinition);
    moduleDefinition.setParentDefinition(parentDefinition);
    
    //now recursively add definitions
    List<Vertex> addedVertices = new ArrayList<Vertex>();

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      dump();
    }
  }


  private Vertex getRequiredVertex(String moduleName) {
    final Vertex parentVertex = vertexMap.get(moduleName);
    if (parentVertex == null) {
      
      if (logger.isDebugEnabled()) {
        logger.debug("Module '" + moduleName + "' not found.");
        dump();

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   */
    private List<Vertex> getVertexAndOrderedDependants(String name) {
    
    Assert.notNull(name, "name cannot be null");
    
    final Vertex current = getRequiredVertex(name);
    
    //get all dependents
    final List<Vertex> dependents = getVertexDependants(name);
    List<Vertex> ordered = getOrderedDependants(current, dependents);
    return ordered;

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   */
  private List<Vertex> getVertexDependencyList(String name) {  
    
    Assert.notNull(name, "name cannot be null");
    
    Vertex vertex = getRequiredVertex(name);
    
    //list the vertices in the correct order
    final List<Vertex> vertextList = GraphHelper.list(vertex);
    return vertextList;
  }

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    Assert.notNull(definitions, "definitions cannot be null");
    
    List<Vertex> vertices = new ArrayList<Vertex>();
    for (ModuleDefinition moduleDefinition : definitions) {
      final Vertex vertex = getRequiredVertex(moduleDefinition.getName());
      
      vertices.add(vertex);
    }
    return vertices;
  }

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  private Vertex populateVertex(ModuleDefinition moduleDefinition) {
    
    Assert.notNull(moduleDefinition, "moduleDefinition cannot be null");
    
    String name = moduleDefinition.getName();
    final Vertex vertex = new Vertex(moduleDefinition);
    vertexMap.put(name, vertex);
    return vertex;
  }

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    final ModuleDefinition moduleDefinition = vertex.getModuleDefinition();
    
    final List<String> dependentModuleNames = moduleDefinition.getDependentModuleNames();
    for (String dependent : dependentModuleNames) {
      
      final Vertex dependentVertex = vertexMap.get(dependent);
      
      if (dependentVertex == null) {
        throw new InvalidStateException("Unable to dependency named named '" + dependent 
            + "' for module definition '" + moduleDefinition.getName() + "'");

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        Assert.notNull(parent, "parent cannot be null");
        Assert.notNull(moduleDefinition, "moduleDefinition cannot be null");
        
        logger.info("With parent '" + parent + "', adding module: " + moduleDefinition);
        
        final Vertex parentVertex = getRequiredVertex(parent);
        
        ModuleDefinition parentDefinition = parentVertex.getModuleDefinition();
        parentDefinition.addChildModuleDefinition(moduleDefinition);
        moduleDefinition.setParentDefinition(parentDefinition);
        
        //now recursively add definitions
        List<Vertex> addedVertices = new ArrayList<Vertex>();

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            dump();
        }
    }


    private Vertex getRequiredVertex(String moduleName) {
        final Vertex parentVertex = vertexMap.get(moduleName);
        if (parentVertex == null) {
            
            if (logger.isDebugEnabled()) {
                logger.debug("Module '" + moduleName + "' not found.");
                dump();

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Related Classes of org.impalaframework.graph.Vertex

org.impalaframework.classloader.graph.DependencyManager

org.impalaframework.graph.GraphHelperTest

org.impalaframework.graph.VertexTestCase

org.impalaframework.module.definition.DependencyManager

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