275 lines
8.8 KiB
Java
275 lines
8.8 KiB
Java
package org.gcube.datacatalogue.grsf_manage_widget.client.view.subwidgets;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import org.gcube.datacatalogue.grsf_manage_widget.client.GRSFManageWidgetServiceAsync;
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import org.gcube.datacatalogue.grsf_manage_widget.shared.SimilarGRSFRecord;
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import com.github.gwtbootstrap.client.ui.Button;
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import com.github.gwtbootstrap.client.ui.CheckBox;
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import com.github.gwtbootstrap.client.ui.Paragraph;
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import com.github.gwtbootstrap.client.ui.TextBox;
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import com.github.gwtbootstrap.client.ui.constants.IconType;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.dom.client.Style.Float;
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import com.google.gwt.dom.client.Style.FontWeight;
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import com.google.gwt.dom.client.Style.Unit;
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import com.google.gwt.event.dom.client.ChangeEvent;
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import com.google.gwt.event.dom.client.ChangeHandler;
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import com.google.gwt.event.dom.client.ClickEvent;
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import com.google.gwt.event.dom.client.ClickHandler;
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import com.google.gwt.event.dom.client.KeyPressEvent;
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import com.google.gwt.event.dom.client.KeyPressHandler;
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import com.google.gwt.uibinder.client.UiBinder;
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import com.google.gwt.uibinder.client.UiField;
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import com.google.gwt.user.client.ui.Anchor;
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import com.google.gwt.user.client.ui.Composite;
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import com.google.gwt.user.client.ui.HTML;
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import com.google.gwt.user.client.ui.HorizontalPanel;
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import com.google.gwt.user.client.ui.VerticalPanel;
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import com.google.gwt.user.client.ui.Widget;
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public class SimilarGRSFRecordWidget extends Composite {
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private static SimilarGRSFRecordWidgetUiBinder uiBinder = GWT
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.create(SimilarGRSFRecordWidgetUiBinder.class);
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interface SimilarGRSFRecordWidgetUiBinder extends
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UiBinder<Widget, SimilarGRSFRecordWidget> {
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}
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@UiField
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VerticalPanel similarGrsfRecordsPanel;
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@UiField
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VerticalPanel similarGrsfRecordsSuggestedPanel;
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@UiField
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Button addSimilarRecord;
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private List<Pair> extraSimilarRecordsList = new ArrayList<Pair>(0);
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private List<SimilarGRSFRecord> availableGRSFSimilarRecords;
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private GRSFManageWidgetServiceAsync service;
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/**
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* Get widget for available similar grsf records
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* @param availableGRSFSimilarRecords
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* @param service
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*/
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public SimilarGRSFRecordWidget(List<SimilarGRSFRecord> availableGRSFSimilarRecords, GRSFManageWidgetServiceAsync service) {
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initWidget(uiBinder.createAndBindUi(this));
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this.service = service;
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this.availableGRSFSimilarRecords = availableGRSFSimilarRecords;
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addSimilarRecord.getElement().getStyle().setFloat(Float.RIGHT);
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// add the existing ones, if any
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for (final SimilarGRSFRecord similarGRSFRecord : availableGRSFSimilarRecords) {
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Widget widget = buildWidgetForSimilarRecord(similarGRSFRecord);
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similarGrsfRecordsPanel.add(widget);
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HTML separator = new HTML("<hr style=\"width:100%;\"/>");
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similarGrsfRecordsPanel.add(separator);
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}
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// manage the "suggest button"
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addSimilarRecord.setIcon(IconType.PLUS_SIGN);
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addSimilarRecord.getElement().getStyle().setFloat(Float.RIGHT);
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addSimilarRecord.setTitle("Suggest a Similar Record by using its GRSF Semantic Identifier");
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// add handler
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addSimilarRecord.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent arg0) {
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SimilarGRSFRecord s = new SimilarGRSFRecord(true);
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Widget w = buildWidgetForExtraSimilarRecord(s);
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extraSimilarRecordsList.add(new Pair(s, w));
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similarGrsfRecordsSuggestedPanel.add(w);
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}
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});
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}
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/**
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* Builds widget for already present similar GRSF records
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* @param similarGRSFRecord
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* @return a Widget (actually a VerticalPanel)
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*/
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public static Widget buildWidgetForSimilarRecord(final SimilarGRSFRecord similarGRSFRecord){
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HorizontalPanel hp = new HorizontalPanel();
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hp.setWidth("90%");
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VerticalPanel leftPanel = new VerticalPanel();
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leftPanel.setWidth("80%");
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leftPanel.getElement().getStyle().setMarginLeft(15, Unit.PX);
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Paragraph name = new Paragraph("Record name: " + (similarGRSFRecord.getShortName() != null? similarGRSFRecord.getShortName() : "Unavailable"));
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leftPanel.add(name);
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if(similarGRSFRecord.getDescription() != null){
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String shortDescrption = similarGRSFRecord.getDescription().length() > 45 ?
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similarGRSFRecord.getDescription().substring(0, 45) + " ... " :
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similarGRSFRecord.getDescription();
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Paragraph description = new Paragraph(
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"Description: " + shortDescrption);
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description.setTitle("Description: " + similarGRSFRecord.getDescription());
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leftPanel.add(description);
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}
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Paragraph semanticIdentifier = new Paragraph("Semantic Identifier: " +
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similarGRSFRecord.getSemanticIdentifier());
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leftPanel.add(semanticIdentifier);
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VerticalPanel rightPanel = new VerticalPanel();
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rightPanel.setWidth("20%");
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Anchor view = new Anchor();
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view.setHref(similarGRSFRecord.getUrl());
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view.setText("View");
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view.setTitle("Click to view the similar record");
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view.setTarget("_blank");
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view.getElement().getStyle().setFontWeight(FontWeight.BOLD);
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rightPanel.add(view);
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// add merge checkbox
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final CheckBox mergeSuggested = new CheckBox("Merge");
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mergeSuggested.setTitle("Suggest to merge the current record with this similar record");
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mergeSuggested.getElement().getStyle().setPaddingTop(3, Unit.PC);
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mergeSuggested.setValue(false);
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mergeSuggested.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent arg0) {
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similarGRSFRecord.setSuggestedMerge(mergeSuggested.getValue());
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}
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});
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rightPanel.getElement().getStyle().setFloat(Float.RIGHT);
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rightPanel.add(mergeSuggested);
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hp.add(leftPanel);
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hp.add(rightPanel);
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hp.getElement().getStyle().setPadding(10, Unit.PX);
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hp.getElement().getStyle().setMarginBottom(10, Unit.PX);
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return hp;
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}
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/**
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* Builds up a widget for suggested similar grsf records. Changes are performed in place with respect to w and s.
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* @author Costantino Perciante at ISTI-CNR (costantino.perciante@isti.cnr.it)
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* @param w the widget
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* @param s the similar record.
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*/
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private Widget buildWidgetForExtraSimilarRecord(final SimilarGRSFRecord s){
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VerticalPanel main = new VerticalPanel();
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main.setWidth("90%");
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HorizontalPanel hp = new HorizontalPanel();
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hp.setWidth("100%");
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VerticalPanel vpLeft = new VerticalPanel();
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vpLeft.getElement().getStyle().setMarginLeft(15, Unit.PX);
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vpLeft.setWidth("80%");
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Paragraph semanticIdentifier = new Paragraph("Semantic Identifier:");
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final TextBox box = new TextBox();
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box.addKeyPressHandler(new KeyPressHandler() {
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@Override
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public void onKeyPress(KeyPressEvent event) {
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String currentText = box.getText().trim();
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GWT.log("Text changed to " + currentText);
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s.setSemanticIdentifier(currentText);
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}
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});
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box.addChangeHandler(new ChangeHandler() {
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@Override
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public void onChange(ChangeEvent event) {
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String currentText = box.getText().trim();
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GWT.log("Text changed to " + currentText);
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s.setSemanticIdentifier(currentText);
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}
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});
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box.setWidth("511px");
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box.setPlaceholder("Insert the Semantic Identifier of the suggested record");
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vpLeft.add(semanticIdentifier);
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vpLeft.add(box);
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// add merge checkbox
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final CheckBox mergeSuggested = new CheckBox("Merge");
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mergeSuggested.setTitle("Suggest to merge the current record with this similar record");
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mergeSuggested.getElement().getStyle().setPaddingTop(3, Unit.PC);
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mergeSuggested.setValue(false);
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VerticalPanel vpRight = new VerticalPanel();
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vpRight.setWidth("20%");
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mergeSuggested.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent arg0) {
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s.setSuggestedMerge(mergeSuggested.getValue());
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}
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});
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vpRight.add(mergeSuggested);
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Button removeExtra = new Button();
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removeExtra.setIcon(IconType.MINUS);
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removeExtra.setTitle("Remove this suggested record");
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removeExtra.addClickHandler(new ClickHandler() {
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@Override
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public void onClick(ClickEvent arg0) {
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// remove this object from the pairs list
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Iterator<Pair> iterator = extraSimilarRecordsList.iterator();
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while (iterator.hasNext()) {
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Pair pair = (Pair) iterator
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.next();
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if(pair.getO().equals(s)){
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pair.getW().removeFromParent();
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iterator.remove();
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}
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}
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}
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});
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vpRight.getElement().getStyle().setFloat(Float.RIGHT);
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vpRight.add(removeExtra);
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vpRight.add(mergeSuggested);
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hp.add(vpLeft);
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hp.add(vpRight);
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HTML separator = new HTML("<hr style=\"width:100%;\"/>");
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similarGrsfRecordsSuggestedPanel.add(separator);
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main.add(hp);
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main.add(separator);
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return main;
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}
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/**
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* Get the whole of similar records
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* @return
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*/
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public List<SimilarGRSFRecord> getSimilarRecords(){
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if(availableGRSFSimilarRecords == null)
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availableGRSFSimilarRecords = new ArrayList<SimilarGRSFRecord>();
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for (Pair p : extraSimilarRecordsList) {
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availableGRSFSimilarRecords.add((SimilarGRSFRecord) p.getO());
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}
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return availableGRSFSimilarRecords;
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}
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}
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