runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/xml/SpecBeanDefinitionParser.java

   1 package org.argeo.slc.core.execution.xml;
   2
   3 import java.util.List;
   4
   5 import org.apache.commons.logging.Log;
   6 import org.apache.commons.logging.LogFactory;
   7 import org.argeo.slc.core.execution.DefaultExecutionSpec;
   8 import org.argeo.slc.core.execution.PrimitiveSpecAttribute;
   9 import org.argeo.slc.core.execution.RefSpecAttribute;
  10 import org.argeo.slc.core.execution.RefValueChoice;
  11 import org.springframework.beans.factory.config.BeanDefinition;
  12 import org.springframework.beans.factory.support.BeanDefinitionBuilder;
  13 import org.springframework.beans.factory.support.ManagedList;
  14 import org.springframework.beans.factory.support.ManagedMap;
  15 import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
  16 import org.springframework.beans.factory.xml.ParserContext;
  17 import org.springframework.util.StringUtils;
  18 import org.springframework.util.xml.DomUtils;
  19 import org.w3c.dom.Element;
  20
  21 public class SpecBeanDefinitionParser extends
  22                 AbstractSingleBeanDefinitionParser {
  23         private Log log = LogFactory.getLog(SpecBeanDefinitionParser.class);
  24
  25         @SuppressWarnings("unchecked")
  26         @Override
  27         protected void doParse(Element element, ParserContext parserContext,
  28                         BeanDefinitionBuilder builder) {
  29                 builder.getBeanDefinition().setDescription(DomUtils.getChildElementValueByTagName(element,
  30                 "description"));
  31
  32                 ManagedMap attributes = new ManagedMap();
  33
  34                 // Primitives
  35                 for (Element child : (List<Element>) DomUtils
  36                                 .getChildElementsByTagName(element, "primitive")) {
  37                         BeanDefinitionBuilder childBuilder = BeanDefinitionBuilder
  38                                         .genericBeanDefinition(PrimitiveSpecAttribute.class);
  39                         addCommonProperties(child, parserContext, childBuilder);
  40
  41                         String type = child.getAttribute("type");
  42                         if (StringUtils.hasText(type))
  43                                 childBuilder.addPropertyValue("type", type);
  44
  45                         putInAttributes(attributes, child,
  46                                         childBuilder.getBeanDefinition(), "primitive");
  47                 }
  48
  49                 // Refs
  50                 for (Element refAttrElem : (List<Element>) DomUtils
  51                                 .getChildElementsByTagName(element, "ref")) {
  52                         BeanDefinitionBuilder refAttrBuilder = BeanDefinitionBuilder
  53                                         .genericBeanDefinition(RefSpecAttribute.class);
  54                         addCommonProperties(refAttrElem, parserContext, refAttrBuilder);
  55
  56                         String targetClassName = refAttrElem.getAttribute("targetClass");
  57                         if (StringUtils.hasText(targetClassName))
  58                                 refAttrBuilder.addPropertyValue("targetClass", targetClassName);
  59
  60                         // Choices
  61                         Element choicesElem = DomUtils.getChildElementByTagName(
  62                                         refAttrElem, "choices");
  63                         if (choicesElem != null) {
  64                                 List<Element> choices = DomUtils.getChildElementsByTagName(
  65                                                 choicesElem, "choice");
  66                                 ManagedList choiceBeans = new ManagedList(choices.size());
  67                                 for (Element choiceElem : choices) {
  68                                         BeanDefinitionBuilder choiceBuilder = BeanDefinitionBuilder
  69                                                         .genericBeanDefinition(RefValueChoice.class);
  70                                         choiceBuilder.addPropertyValue("name", choiceElem
  71                                                         .getAttribute("name"));
  72                                         String desc = choiceElem.getAttribute("description");
  73                                         if (StringUtils.hasText(desc))
  74                                                 choiceBuilder.addPropertyValue("description", desc);
  75
  76                                         choiceBeans.add(choiceBuilder.getBeanDefinition());
  77                                 }
  78                                 refAttrBuilder.addPropertyValue("choices", choiceBeans);
  79                         }
  80
  81                         putInAttributes(attributes, refAttrElem, refAttrBuilder
  82                                         .getBeanDefinition(), "ref");
  83                 }
  84
  85                 builder.addPropertyValue("attributes", attributes);
  86         }
  87
  88         protected void addCommonProperties(Element element,
  89                         ParserContext parserContext, BeanDefinitionBuilder specAttr) {
  90                 addBooleanProperty("isParameter", specAttr, element);
  91                 addBooleanProperty("isFrozen", specAttr, element);
  92                 addBooleanProperty("isHidden", specAttr, element);
  93
  94                 Object value = NamespaceUtils.parseValue(element, parserContext,
  95                                 specAttr.getBeanDefinition(), "value");
  96                 if (value != null)
  97                         specAttr.addPropertyValue("value", value);
  98
  99         }
 100
 101         @SuppressWarnings("unchecked")
 102         protected void putInAttributes(ManagedMap attributes, Element child,
 103                         BeanDefinition beanDefinition, String nature) {
 104                 String name = child.getAttribute("name");
 105                 attributes.put(name, beanDefinition);
 106                 if (log.isTraceEnabled())
 107                         log.debug("Added " + nature + " attribute " + name);
 108
 109         }
 110
 111         private void addBooleanProperty(String name,
 112                         BeanDefinitionBuilder specAttr, Element element) {
 113                 String bool = element.getAttribute(name);
 114                 if (StringUtils.hasText(bool))
 115                         specAttr.addPropertyValue(name, Boolean.parseBoolean(bool));
 116
 117         }
 118
 119         @Override
 120         protected Class<DefaultExecutionSpec> getBeanClass(Element element) {
 121                 return DefaultExecutionSpec.class;
 122         }
 123
 124         protected boolean shouldGenerateIdAsFallback() {
 125                 return false;
 126         }
 127
 128 }