dive4elements/gnv-client: gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/GNVArtifactBase.java comparison

comparison gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/GNVArtifactBase.java @ 473:a6a33ef35809

Added support to step back to previous states. Add state names to xform nodes in describe document and append old targets to list of reachable targets. gnv-artifacts/trunk@539 c6561f87-3c4e-4783-a992-168aeb5c3f6f

author	Ingo Weinzierl <ingo.weinzierl@intevation.de>
date	Wed, 13 Jan 2010 23:10:56 +0000
parents	b7bb66440cc8
children	c0504976e606

comparison

equal deleted inserted replaced

-:d6a100d5f74a
+:a6a33ef35809
 import java.io.OutputStream;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.Iterator;
+import java.util.List;
 import java.util.Map;
 import javax.xml.xpath.XPathConstants;
+import net.sf.ehcache.Cache;
 import org.apache.log4j.Logger;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
 import de.intevation.artifactdatabase.XMLUtils;
 import de.intevation.artifacts.ArtifactFactory;
 import de.intevation.artifacts.ArtifactNamespaceContext;
 import de.intevation.artifacts.CallContext;
 import de.intevation.artifacts.CallMeta;
+import de.intevation.gnv.artifacts.cache.CacheFactory;
 import de.intevation.gnv.artifacts.context.GNVArtifactContext;
 import de.intevation.gnv.artifacts.fis.FISSelectArtifact;
 import de.intevation.gnv.artifacts.fis.product.Product;
 import de.intevation.gnv.artifacts.ressource.RessourceFactory;
 import de.intevation.gnv.state.DefaultInputData;
 import de.intevation.gnv.state.InputData;
 import de.intevation.gnv.state.InputValue;
 import de.intevation.gnv.state.OutputMode;
 import de.intevation.gnv.state.OutputState;
 import de.intevation.gnv.state.State;
+import de.intevation.gnv.state.StateBase;
 import de.intevation.gnv.state.StateFactory;
 import de.intevation.gnv.state.exception.StateException;
 import de.intevation.gnv.transition.Transition;
 import de.intevation.gnv.transition.TransitionFactory;
 import de.intevation.gnv.utils.ArtifactXMLUtilities;
 );
 }
 // step backward
 else if((next = getPreviousState(current, targetState)) != null) {
+// reset input data
 resetFutureStates(current, targetState);
+// remove data from future states from cache
+resetDescribeData(current, identifier, targetState);
 current = next;
 result = createReport(
 result, "result", "success", "Advance success"
 );
 else {
 return getPreviousState(current.getParent(), name);
 }
 }
+public void resetDescribeData(State state, String uuid, String target) {
+CacheFactory factory = CacheFactory.getInstance();
+if (factory.isInitialized()) {
+Cache  cache = factory.getCache();
+String key   = uuid + StateBase.DESCRIBEDATAKEY;
+net.sf.ehcache.Element value = cache.get(key);
+if (value == null)
+return;
+List data = (List) value.getObjectValue();
+while(!target.equals(state.getID())) {
+data.remove(data.size()-1);
+state = state.getParent();
+}
+cache.put(new net.sf.ehcache.Element(key, data));
+}
+}
 protected void resetFutureStates(State current, String name) {
 if (current == null) {
 return;
 }
 }
 }
 private boolean isStateCurrentlyReachable(String stateid){
-log.debug("GNVArtifactBase.isStateCurrentlyReachable "+stateid);
 Iterator<Transition> it = this.transitions.iterator();
 String from = this.current.getID();
 while (it.hasNext()){
 Transition transition = it.next();
 if (transition.getFrom().equals(from)){
 if (transition.getTo().equals(stateid) && transition.isValid(this.current)){
 return true;
 }
 }
 }
-log.debug("State is not reachable.");
 return false;
 }
 public Document initialize (CallContext context) {
 Document result = XMLUtils.newDocument();
 Element                 parent,
 Document                document
 ) {
 Element stateNode = creator.create("reachable-states");
 if (this.current != null) {
+// add future states
 Iterator<Transition> transitions = this.transitions.iterator();
 while (transitions.hasNext()) {
 Transition tmpTransition = transitions.next();
 if (tmpTransition.getFrom().equals(current.getID()) &&
 tmpTransition.isValid(this.current)){
 Element currentNode = creator.create("state");
 creator.addAttr(currentNode, "name", tmpTransition.getTo());
-log.debug("Reachable State: " + tmpTransition.getTo());
 creator.addAttr(
 currentNode,
 "description",
 this.states.get(tmpTransition.getTo()).getDescription());
 stateNode.appendChild(currentNode);
 }
 }
+// add old states
+appendOldReachableStates(creator, stateNode, current);
 }
 parent.appendChild(stateNode);
 }
+protected void appendOldReachableStates(
+XMLUtils.ElementCreator creator,
+Element                 parent,
+State                   state
+) {
+if (state == null)
+return;
+while (state != null) {
+Element currentNode = creator.create("state");
+creator.addAttr(currentNode, "name", state.getID());
+creator.addAttr(currentNode, "description", state.getDescription());
+parent.appendChild(currentNode);
+state = state.getParent();
+}
+}
 protected void createCurrentState(
 XMLUtils.ElementCreator creator,
 Element                 parent,
 Document                document

Mercurial > dive4elements > gnv-client

comparison gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/GNVArtifactBase.java @ 473:a6a33ef35809