Make core runtime features independent of Spring.

[gpl/argeo-slc.git] / org.argeo.slc.jcr / src / org / argeo / slc / jcr / execution / JcrRealizedFlow.java

diff --git a/org.argeo.slc.jcr/src/org/argeo/slc/jcr/execution/JcrRealizedFlow.java b/org.argeo.slc.jcr/src/org/argeo/slc/jcr/execution/JcrRealizedFlow.java
new file mode 100644 (file)
index 0000000..e8f0145
--- /dev/null
+++ b/org.argeo.slc.jcr/src/org/argeo/slc/jcr/execution/JcrRealizedFlow.java
@@ -0,0 +1,125 @@
+package org.argeo.slc.jcr.execution;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.jcr.Node;
+import javax.jcr.NodeIterator;
+import javax.jcr.Property;
+import javax.jcr.RepositoryException;
+
+import org.argeo.slc.SlcException;
+import org.argeo.slc.SlcNames;
+import org.argeo.slc.SlcTypes;
+import org.argeo.slc.execution.ExecutionFlowDescriptor;
+import org.argeo.slc.execution.ExecutionSpecAttribute;
+import org.argeo.slc.execution.RealizedFlow;
+import org.argeo.slc.execution.RefSpecAttribute;
+import org.argeo.slc.jcr.SlcJcrUtils;
+import org.argeo.slc.primitive.PrimitiveSpecAttribute;
+import org.argeo.slc.primitive.PrimitiveUtils;
+import org.argeo.slc.runtime.DefaultExecutionSpec;
+
+public class JcrRealizedFlow extends RealizedFlow implements SlcNames {
+       private static final long serialVersionUID = -3709453850260712001L;
+       private String path;
+
+       public JcrRealizedFlow(Node node) {
+               try {
+                       this.path = node.getPath();
+                       loadFromNode(node);
+               } catch (RepositoryException e) {
+                       throw new SlcException("Cannot initialize from " + node, e);
+               }
+       }
+
+       protected void loadFromNode(Node realizedFlowNode) throws RepositoryException {
+               if (realizedFlowNode.hasNode(SLC_ADDRESS)) {
+                       String flowPath = realizedFlowNode.getNode(SLC_ADDRESS).getProperty(Property.JCR_PATH).getString();
+                       // TODO: convert to local path if remote
+                       // FIXME start related module
+                       Node flowNode = realizedFlowNode.getSession().getNode(flowPath);
+                       String flowName = flowNode.getProperty(SLC_NAME).getString();
+                       String description = null;
+                       if (flowNode.hasProperty(Property.JCR_DESCRIPTION))
+                               description = flowNode.getProperty(Property.JCR_DESCRIPTION).getString();
+
+                       Node executionModuleNode = flowNode.getSession().getNode(SlcJcrUtils.modulePath(flowPath));
+                       String executionModuleName = executionModuleNode.getProperty(SLC_NAME).getString();
+                       String executionModuleVersion = executionModuleNode.getProperty(SLC_VERSION).getString();
+
+                       RealizedFlow realizedFlow = this;
+                       realizedFlow.setModuleName(executionModuleName);
+                       realizedFlow.setModuleVersion(executionModuleVersion);
+
+                       // retrieve execution spec
+                       DefaultExecutionSpec executionSpec = new DefaultExecutionSpec();
+                       Map<String, ExecutionSpecAttribute> attrs = readExecutionSpecAttributes(realizedFlowNode);
+                       executionSpec.setAttributes(attrs);
+
+                       // set execution spec name
+                       if (flowNode.hasProperty(SlcNames.SLC_SPEC)) {
+                               Node executionSpecNode = flowNode.getProperty(SLC_SPEC).getNode();
+                               executionSpec.setName(executionSpecNode.getProperty(SLC_NAME).getString());
+                       }
+
+                       // explicitly retrieve values
+                       Map<String, Object> values = new HashMap<String, Object>();
+                       for (String attrName : attrs.keySet()) {
+                               ExecutionSpecAttribute attr = attrs.get(attrName);
+                               Object value = attr.getValue();
+                               values.put(attrName, value);
+                       }
+
+                       ExecutionFlowDescriptor efd = new ExecutionFlowDescriptor(flowName, description, values, executionSpec);
+                       realizedFlow.setFlowDescriptor(efd);
+               } else {
+                       throw new SlcException("Unsupported realized flow " + realizedFlowNode);
+               }
+       }
+
+       protected Map<String, ExecutionSpecAttribute> readExecutionSpecAttributes(Node node) {
+               try {
+                       Map<String, ExecutionSpecAttribute> attrs = new HashMap<String, ExecutionSpecAttribute>();
+                       for (NodeIterator nit = node.getNodes(); nit.hasNext();) {
+                               Node specAttrNode = nit.nextNode();
+                               if (specAttrNode.isNodeType(SlcTypes.SLC_PRIMITIVE_SPEC_ATTRIBUTE)) {
+                                       String type = specAttrNode.getProperty(SLC_TYPE).getString();
+                                       Object value = null;
+                                       if (specAttrNode.hasProperty(SLC_VALUE)) {
+                                               String valueStr = specAttrNode.getProperty(SLC_VALUE).getString();
+                                               value = PrimitiveUtils.convert(type, valueStr);
+                                       }
+                                       PrimitiveSpecAttribute specAttr = new PrimitiveSpecAttribute(type, value);
+                                       attrs.put(specAttrNode.getName(), specAttr);
+                               } else if (specAttrNode.isNodeType(SlcTypes.SLC_REF_SPEC_ATTRIBUTE)) {
+                                       if (!specAttrNode.hasProperty(SLC_VALUE)) {
+                                               continue;
+                                       }
+                                       Integer value = (int) specAttrNode.getProperty(SLC_VALUE).getLong();
+                                       RefSpecAttribute specAttr = new RefSpecAttribute();
+                                       NodeIterator children = specAttrNode.getNodes();
+                                       int index = 0;
+                                       String id = null;
+                                       while (children.hasNext()) {
+                                               Node child = children.nextNode();
+                                               if (index == value)
+                                                       id = child.getName();
+                                               index++;
+                                       }
+                                       specAttr.setValue(id);
+                                       attrs.put(specAttrNode.getName(), specAttr);
+                               }
+                               // throw new SlcException("Unsupported spec attribute "
+                               // + specAttrNode);
+                       }
+                       return attrs;
+               } catch (RepositoryException e) {
+                       throw new SlcException("Cannot read spec attributes from " + node, e);
+               }
+       }
+
+       public String getPath() {
+               return path;
+       }
+}