Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/DatacageTwinPanel.java @ 1392:baada4879c20
Fix clone of static artifacts for differences.
flys-client/trunk@3225 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
---|---|
date | Thu, 10 Nov 2011 14:04:03 +0000 |
parents | 9da7fdfbb80e |
children | 0d3bbe4240b1 |
line wrap: on
line source
package de.intevation.flys.client.client.ui; import java.util.ArrayList; import java.util.List; import java.util.Map; import java.util.Set; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.rpc.AsyncCallback; import com.smartgwt.client.data.Record; import com.smartgwt.client.types.ListGridFieldType; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.layout.HLayout; import com.smartgwt.client.widgets.layout.VLayout; import com.smartgwt.client.widgets.grid.ListGrid; import com.smartgwt.client.widgets.grid.ListGridField; import com.smartgwt.client.widgets.grid.ListGridRecord; import com.smartgwt.client.widgets.events.ClickEvent; import com.smartgwt.client.widgets.grid.events.RecordClickEvent; import com.smartgwt.client.widgets.grid.events.RecordClickHandler; import de.intevation.flys.client.shared.model.Artifact; import de.intevation.flys.client.shared.model.Collection; import de.intevation.flys.client.shared.model.Data; import de.intevation.flys.client.shared.model.DataItem; import de.intevation.flys.client.shared.model.DefaultData; import de.intevation.flys.client.shared.model.DefaultDataItem; import de.intevation.flys.client.shared.model.DataList; import de.intevation.flys.client.shared.model.User; import de.intevation.flys.client.client.FLYSConstants; import de.intevation.flys.client.client.event.StepForwardEvent; import de.intevation.flys.client.shared.model.Recommendation; import de.intevation.flys.client.shared.model.Recommendation.Facet; import de.intevation.flys.client.shared.model.Recommendation.Filter; import de.intevation.flys.client.client.Config; import de.intevation.flys.client.client.services.LoadArtifactService; import de.intevation.flys.client.client.services.LoadArtifactServiceAsync; import de.intevation.flys.client.client.services.RemoveArtifactService; import de.intevation.flys.client.client.services.RemoveArtifactServiceAsync; // TODO Probably better to branch off AbstractUIProvider. // TODO Merge with other datacage-widget impls. /** * Panel containing a Grid and a "next" button. The Grid is fed by a * DatacagePairWidget which is put in the input-helper area. */ public class DatacageTwinPanel extends TextProvider { protected static FLYSConstants MSG = GWT.create(FLYSConstants.class); protected String dataName; protected User user; /** ListGrid that displays user-selected pairs to build differences with. */ protected ListGrid differencesList; /* * List to track previously selected but now removed pairs. (Needed to * be able to identify artifacts that can be removed from the collection. */ protected List<RecommendationPairRecord> removedPairs = new ArrayList<RecommendationPairRecord>(); /** Service handle to clone and add artifacts to collection. */ LoadArtifactServiceAsync loadArtifactService = GWT.create( de.intevation.flys.client.client.services.LoadArtifactService.class); /** Service to remove artifacts from collection. */ RemoveArtifactServiceAsync removeArtifactService = GWT.create( de.intevation.flys.client.client.services.RemoveArtifactService.class); public DatacageTwinPanel(User user) { super(); this.user = user; } /** * Remove first occurrence of "[" and "]" (if both do occur). * @param value String to be stripped of [] (might be null). * @return input string but with [ and ] removed, or input string if no * brackets were found. * @see StringUtil.unbracket */ public static final String unbracket(String value) { // null- guard. if (value == null) return value; int start = value.indexOf("["); int end = value.indexOf("]"); if (start < 0 || end < 0) { return value; } value = value.substring(start + 1, end); return value; } /** * Create a recommendation from a string representation of it. * @TODO describe format of input string * @param from string in format as shown above. * @return recommendation from input string. */ public Recommendation createRecommendationFromString(String from) { // TODO Construct "real" filter. String[] parts = unbracket(from).split(";"); Recommendation.Filter filter = new Recommendation.Filter(); Recommendation.Facet facet = new Recommendation.Facet( parts[1], parts[2]); List<Recommendation.Facet> facets = new ArrayList<Recommendation.Facet> (); facets.add(facet); filter.add("longitudinal_section", facets); Recommendation r = new Recommendation("waterlevel", parts[0], this.artifact.getUuid(), filter); r.setDisplayName(parts[3]); return r; } /** * Add RecomendationPairRecords from input String to the ListGrid. */ public void populateGridFromString(String from){ // Split this string. // Create according recommendations and display strings. String[] recs = from.split("#"); if (recs.length % 2 != 0) return; for (int i = 0; i < recs.length; i+=2) { Recommendation minuend = createRecommendationFromString(recs[i+0]); Recommendation subtrahend = createRecommendationFromString(recs[i+1]); RecommendationPairRecord pr = new RecommendationPairRecord( minuend, subtrahend); // This Recommendation Pair comes from the data string and was thus // already cloned. pr.setIsAlreadyLoaded(true); this.differencesList.addData(pr); } } /** * Creates the graphical representation and interaction widgets for the data. * @param dataList the data. * @return graphical representation and interaction widgets for data. */ @Override public Canvas create(DataList dataList) { GWT.log("createData()"); Canvas widget = createWidget(); Canvas submit = getNextButton(); VLayout layout = new VLayout(); HLayout helperLayout = new HLayout(); helperLayout.addMember(new DatacagePairWidget(this.artifact, user, "waterlevels", differencesList)); layout.addMember(widget); layout.addMember(submit); layout.setMembersMargin(10); this.helperContainer.addMember(helperLayout); // Find old data, if any, handle "diffids". Data data = dataList.get(0); this.dataName = data.getLabel(); for (int i = 0; i < dataList.size(); i++) { if (dataList.get(i) != null && dataList.get(i).getItems() != null) { if (dataList.get(i).getItems() != null) { populateGridFromString( dataList.get(i).getItems()[0].getStringValue()); } } } return layout; } /** * Validates the selection. * @return List of internationalized errror messages (if any). */ @Override public List<String> validate() { List<String> errors = new ArrayList<String>(); if (differencesList.getRecords().length == 0) { errors.add(MSG.error_no_waterlevel_pair_selected()); } // Check whether minuend and subtrahend are equal. for (ListGridRecord record: differencesList.getRecords()) { RecommendationPairRecord r = (RecommendationPairRecord) record; if (r.getFirst().equals(r.getSecond())) { errors.add(MSG.error_same_waterlevels_in_pair()); } } return errors; } /** * Creates layout with grid that displays selection inside. */ public Canvas createWidget() { VLayout layout = new VLayout(); differencesList = new ListGrid(); differencesList.setCanEdit(false); differencesList.setCanSort(false); differencesList.setShowHeaderContextMenu(false); differencesList.setHeight(150); differencesList.setShowAllRecords(true); ListGridField nameField = new ListGridField("first", "Minuend"); ListGridField capitalField = new ListGridField("second", "Subtrahend"); // Track removed rows, therefore more or less reimplement // setCanRecomeRecords. final ListGridField removeField = new ListGridField("_removeRecord", "Remove Record"){{ setType(ListGridFieldType.ICON); setIcon(GWT.getHostPageBaseURL() + MSG.removeFeature()); setCanEdit(false); setCanFilter(false); setCanSort(false); setCanGroupBy(false); setCanFreeze(false); setWidth(25); }}; differencesList.setFields(new ListGridField[] {nameField, capitalField, removeField}); differencesList.addRecordClickHandler(new RecordClickHandler() { public void onRecordClick(final RecordClickEvent event) { // Just handle remove-clicks if(!event.getField().getName().equals(removeField.getName())) { return; } trackRemoved(event.getRecord()); event.getViewer().removeData(event.getRecord()); } }); layout.addMember(differencesList); return layout; } /** * Add record to list of removed records. */ public void trackRemoved(Record r) { RecommendationPairRecord pr = (RecommendationPairRecord) r; this.removedPairs.add(pr); } /** * Validates data, does nothing if invalid, otherwise clones new selected * waterlevels and add them to collection, forward the artifact. */ @Override public void onClick(ClickEvent e) { GWT.log("DatacageTwinPanel.onClick"); List<String> errors = validate(); if (errors != null && !errors.isEmpty()) { showErrors(errors); return; } Config config = Config.getInstance(); String url = config.getServerUrl(); String locale = config.getLocale(); ListGridRecord[] records = differencesList.getRecords(); List<Recommendation> ar = new ArrayList<Recommendation>(); List<Recommendation> all = new ArrayList<Recommendation>(); for (ListGridRecord record : records) { RecommendationPairRecord r = (RecommendationPairRecord) record; // Do not add "old" recommendations. if (!r.isAlreadyLoaded()) { // Check whether one of those is a dike or similar. // TODO differentiate and merge: new clones, new, old. Recommendation firstR = r.getFirst(); if(firstR.getIDs() != null) { GWT.log("First IDs: " + firstR.getIDs() + " factory: " + firstR.getFactory()); } if(firstR.getIDs() != null) { // These do not get cloned but loaded ("spawned"). firstR.setFactory("staticwkms"); } else { firstR.setFactory("waterlevel"); } Recommendation secondR = r.getSecond(); if(secondR.getIDs() != null) { GWT.log("Second IDs: " + secondR.getIDs() + " factory: " + secondR.getFactory()); } if (secondR.getIDs() != null) { // These do not get cloned but loaded ("spawned"). secondR.setFactory("staticwkms"); } else { secondR.setFactory("waterlevel"); } ar.add(firstR); ar.add(secondR); } else { all.add(r.getFirst()); all.add(r.getSecond()); } } final Recommendation[] toClone = ar.toArray(new Recommendation[ar.size()]); final Recommendation[] toUse = all.toArray(new Recommendation[all.size()]); // Find out whether "old" artifacts have to be removed. List<String> artifactIdsToRemove = new ArrayList<String>(); for (RecommendationPairRecord rp: this.removedPairs) { Recommendation first = rp.getFirst(); Recommendation second = rp.getSecond(); for (Recommendation recommendation: toUse) { if (first != null && first.getIDs().equals(recommendation.getIDs())) { first = null; } if (second != null && second.getIDs().equals(recommendation.getIDs())) { second = null; } if (first == null && second == null) { break; } } if (first != null) { artifactIdsToRemove.add(first.getIDs()); } if (second != null) { artifactIdsToRemove.add(second.getIDs()); } } // Remove old artifacts, if any. Do this asychronously without much // feedback. for(final String uuid: artifactIdsToRemove) { removeArtifactService.remove(this.collection, uuid, url, locale, new AsyncCallback<Collection>() { public void onFailure(Throwable caught) { GWT.log("RemoveArtifact (" + uuid + ") failed."); } public void onSuccess(Collection collection) { GWT.log("RemoveArtifact succeeded"); } }); } // Clone new ones (and spawn statics), go forward. loadArtifactService.loadMany( this.collection, toClone, //"staticwkms" and "waterlevel" null, url, locale, new AsyncCallback<Artifact[]>() { public void onFailure(Throwable caught) { GWT.log("Failure of cloning with factories!"); } public void onSuccess(Artifact[] artifacts) { GWT.log("Successfully cloned " + toClone.length + " with factories."); fireStepForwardEvent(new StepForwardEvent( getData(toClone, artifacts, toUse))); } }); } /** * Create Data and DataItem from selection (a long string with identifiers * to construct diff-pairs). * * @param newRecommendations "new" recommendations (did not survive a * backjump). * @param newArtifacts artifacts cloned from newRecommendations. * @param oldRecommendations old recommendations that survived a backjump. * * @return dataitem with a long string with identifiers to construct * diff-pairs. */ protected Data[] getData( Recommendation[] newRecommendations, Artifact[] newArtifacts, Recommendation[] oldRecommendations) { // Construct string with info about selections. String dataItemString = ""; for (int i = 0; i < newRecommendations.length; i++) { Recommendation r = newRecommendations[i]; Artifact newArtifact = newArtifacts[i]; String uuid = newArtifact.getUuid(); r.setMasterArtifact(uuid); if (i>0) dataItemString += "#"; dataItemString += createDataString(uuid, r); } for (int i = 0; i < oldRecommendations.length; i++) { Recommendation r = oldRecommendations[i]; String uuid = r.getIDs(); if (dataItemString.length() > 0) dataItemString += "#"; dataItemString += createDataString(uuid, r); } // TODO some hassle could be resolved by using multiple DataItems // (e.g. one per pair). DataItem item = new DefaultDataItem(dataName, dataName, dataItemString); return new Data[] { new DefaultData( dataName, null, null, new DataItem[] {item}) }; } /** * Creates part of the String that encodes minuend or subtrahend. * @param artifact Artifacts UUID. * @param recommendation Recommendation to wrap in string. */ protected String createDataString( String artifact, Recommendation recommendation) { Filter filter = recommendation.getFilter(); Facet f = null; if(filter != null) { Map<String, List<Facet>> outs = filter.getOuts(); Set<Map.Entry<String, List<Facet>>> entries = outs.entrySet(); for (Map.Entry<String, List<Facet>> entry: entries) { List<Facet> fs = entry.getValue(); f = fs.get(0); if (f != null) { break; } } return "[" + artifact + ";" + f.getName() + ";" + f.getIndex() + ";" + recommendation.getDisplayName() + "]"; } else { return "[" + artifact + ";staticwkms;0;" + recommendation.getDisplayName() + "]"; } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :