Move SLC Core

[gpl/argeo-slc.git] / org.argeo.slc.core / src / org / argeo / slc / core / execution / xml / SpecBeanDefinitionParser.java

diff --git a/org.argeo.slc.core/src/org/argeo/slc/core/execution/xml/SpecBeanDefinitionParser.java b/org.argeo.slc.core/src/org/argeo/slc/core/execution/xml/SpecBeanDefinitionParser.java
new file mode 100644 (file)
index 0000000..4ef3f97
--- /dev/null
+++ b/org.argeo.slc.core/src/org/argeo/slc/core/execution/xml/SpecBeanDefinitionParser.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.slc.core.execution.xml;
+
+import java.util.List;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.slc.core.execution.DefaultExecutionSpec;
+import org.argeo.slc.core.execution.PrimitiveSpecAttribute;
+import org.argeo.slc.core.execution.RefSpecAttribute;
+import org.argeo.slc.core.execution.RefValueChoice;
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.support.BeanDefinitionBuilder;
+import org.springframework.beans.factory.support.ManagedList;
+import org.springframework.beans.factory.support.ManagedMap;
+import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
+import org.springframework.beans.factory.xml.ParserContext;
+import org.springframework.util.StringUtils;
+import org.springframework.util.xml.DomUtils;
+import org.w3c.dom.Element;
+
+/** Interprets the <flow:spec> tag */
+public class SpecBeanDefinitionParser extends
+               AbstractSingleBeanDefinitionParser {
+       private Log log = LogFactory.getLog(SpecBeanDefinitionParser.class);
+
+       @SuppressWarnings("unchecked")
+       @Override
+       protected void doParse(Element element, ParserContext parserContext,
+                       BeanDefinitionBuilder builder) {
+               builder.getBeanDefinition().setDescription(
+                               DomUtils.getChildElementValueByTagName(element, "description"));
+
+               ManagedMap attributes = new ManagedMap();
+
+               // Primitives
+               for (Element child : (List<Element>) DomUtils
+                               .getChildElementsByTagName(element, "primitive")) {
+                       BeanDefinitionBuilder childBuilder = BeanDefinitionBuilder
+                                       .genericBeanDefinition(PrimitiveSpecAttribute.class);
+                       addCommonProperties(child, parserContext, childBuilder);
+
+                       String type = child.getAttribute("type");
+                       if (StringUtils.hasText(type))
+                               childBuilder.addPropertyValue("type", type);
+
+                       putInAttributes(attributes, child,
+                                       childBuilder.getBeanDefinition(), "primitive");
+               }
+
+               // Refs
+               for (Element refAttrElem : (List<Element>) DomUtils
+                               .getChildElementsByTagName(element, "ref")) {
+                       BeanDefinitionBuilder refAttrBuilder = BeanDefinitionBuilder
+                                       .genericBeanDefinition(RefSpecAttribute.class);
+                       addCommonProperties(refAttrElem, parserContext, refAttrBuilder);
+
+                       String targetClassName = refAttrElem.getAttribute("targetClass");
+                       if (StringUtils.hasText(targetClassName))
+                               refAttrBuilder.addPropertyValue("targetClass", targetClassName);
+
+                       // Choices
+                       Element choicesElem = DomUtils.getChildElementByTagName(
+                                       refAttrElem, "choices");
+                       if (choicesElem != null) {
+                               List<Element> choices = DomUtils.getChildElementsByTagName(
+                                               choicesElem, "choice");
+                               ManagedList choiceBeans = new ManagedList(choices.size());
+                               for (Element choiceElem : choices) {
+                                       BeanDefinitionBuilder choiceBuilder = BeanDefinitionBuilder
+                                                       .genericBeanDefinition(RefValueChoice.class);
+                                       choiceBuilder.addPropertyValue("name",
+                                                       choiceElem.getAttribute("name"));
+                                       String desc = choiceElem.getAttribute("description");
+                                       if (StringUtils.hasText(desc))
+                                               choiceBuilder.addPropertyValue("description", desc);
+
+                                       choiceBeans.add(choiceBuilder.getBeanDefinition());
+                               }
+                               refAttrBuilder.addPropertyValue("choices", choiceBeans);
+                       }
+
+                       putInAttributes(attributes, refAttrElem,
+                                       refAttrBuilder.getBeanDefinition(), "ref");
+               }
+
+               builder.addPropertyValue("attributes", attributes);
+       }
+
+       protected void addCommonProperties(Element element,
+                       ParserContext parserContext, BeanDefinitionBuilder specAttr) {
+               addBooleanProperty("isImmutable", specAttr, element);
+               addBooleanProperty("isConstant", specAttr, element);
+               addBooleanProperty("isHidden", specAttr, element);
+               addBooleanProperty("isParameter", specAttr, element);
+               addBooleanProperty("isFrozen", specAttr, element);
+
+               Object value = NamespaceUtils.parseValue(element, parserContext,
+                               specAttr.getBeanDefinition(), "value");
+               if (value != null)
+                       specAttr.addPropertyValue("value", value);
+
+       }
+
+       @SuppressWarnings("unchecked")
+       protected void putInAttributes(ManagedMap attributes, Element child,
+                       BeanDefinition beanDefinition, String nature) {
+               String name = child.getAttribute("name");
+               attributes.put(name, beanDefinition);
+               if (log.isTraceEnabled())
+                       log.debug("Added " + nature + " attribute " + name);
+
+       }
+
+       private void addBooleanProperty(String name,
+                       BeanDefinitionBuilder specAttr, Element element) {
+               String bool = element.getAttribute(name);
+               if (StringUtils.hasText(bool))
+                       specAttr.addPropertyValue(name, Boolean.parseBoolean(bool));
+
+       }
+
+       @Override
+       protected Class<DefaultExecutionSpec> getBeanClass(Element element) {
+               return DefaultExecutionSpec.class;
+       }
+
+       protected boolean shouldGenerateIdAsFallback() {
+               return false;
+       }
+
+}