eu.lod2.OnlineToolsTab.java Source code

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Here is the source code for eu.lod2.OnlineToolsTab.java

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/*
 * Copyright 2011 LOD2 consortium
 *
 * 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 eu.lod2;

import java.net.*;
import java.net.URI;
import java.io.*;

import com.vaadin.event.FieldEvents.TextChangeEvent;
import com.vaadin.event.FieldEvents.TextChangeListener;
import com.vaadin.terminal.ExternalResource;
import com.vaadin.ui.*;
import com.vaadin.ui.Label;
import com.vaadin.ui.Alignment.*;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.Field.ValueChangeEvent;
import com.vaadin.ui.Window;
import com.vaadin.ui.Layout.*;

import org.openrdf.repository.Repository;
import org.openrdf.repository.RepositoryConnection;
import org.openrdf.repository.RepositoryException;
import org.openrdf.rio.RDFFormat;
import org.openrdf.rio.RDFParseException;
import org.openrdf.model.*;

import virtuoso.sesame2.driver.VirtuosoRepository;
import eu.lod2.LOD2DemoState;

/**
 * The online tools tab which collects information about 
 * additional online tools.
 */
//@SuppressWarnings("serial")
public class OnlineToolsTab extends CustomComponent {

    private String storeInGraph;
    private String sameasid;

    // reference to the global internal state
    private LOD2DemoState state;

    public OnlineToolsTab(String g, LOD2DemoState st) {

        // The internal state and 
        state = st;
        storeInGraph = g;

        //************************************************************************
        // OnlineToolsTab
        VerticalLayout onlineToolsTab = new VerticalLayout();

        TextField sid = new TextField("search sameAs id's for:");
        sid.setDebugId(this.getClass().getSimpleName() + "_sid");
        final Label sidenc = new Label("");
        // configure & add to layout
        sid.setImmediate(true);
        sid.setColumns(30);
        sid.addListener(new TextChangeListener() {
            public void textChange(TextChangeEvent event) {
                sameasid = event.getText();
            }
        });

        Button sidbutton = new Button("convert", new ClickListener() {
            public void buttonClick(ClickEvent event) {
                try {
                    URI encoded = new URI(sameasid);
                    sidenc.setValue("http://sameAs.org/rdf?uri=" + encoded.toASCIIString());
                } catch (Exception e) {
                    e.printStackTrace();
                }
                ;
                try {
                    //   java.net.URL sameAsData = new java.net.URL("http://sameAs.org/rdf?uri=http%3A%2F%2Fdbpedia.org%2Fresource%2FGermany");

                    URI sidencoded = new URI(sameasid);
                    java.net.URL sameAsData = new java.net.URL(
                            "http://sameAs.org/rdf?uri=" + sidencoded.toASCIIString());
                    String baseURI = "http://sameAs.org#";

                    RepositoryConnection con = state.getRdfStore().getConnection();
                    Resource contextURI = con.getValueFactory().createURI(storeInGraph);
                    Resource[] contexts = new Resource[] { contextURI };
                    con.add(sameAsData, baseURI, RDFFormat.RDFXML, contexts);

                } catch (RepositoryException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (RDFParseException e) {
                    e.printStackTrace();
                } catch (URISyntaxException e) {
                    e.printStackTrace();
                }
                ;
            };
        });

        onlineToolsTab.addComponent(sid);
        onlineToolsTab.addComponent(sidenc);
        onlineToolsTab.addComponent(sidbutton);

        /* Sigma EE is temporarily deprecated
        try { 
           URL url2 = new URL(state.getHostName() + "/lod2.sigma.html");
           Embedded browser2 = new Embedded("", new ExternalResource(url2));
           browser2.setType(Embedded.TYPE_BROWSER);
           browser2.setWidth("100%");
           browser2.setHeight(500);
           onlineToolsTab.addComponent(browser2);   
        } catch (MalformedURLException e) {
           e.printStackTrace();
        };
        */

        /* The online resources link page */
        final Panel panel = new Panel("LOD2 online components");

        VerticalLayout panelContent = new VerticalLayout();

        Link l = new Link("SameAs Inference", new ExternalResource("http://sameAs.org/"));
        l.setTargetName("_blank");
        l.setTargetBorder(Link.TARGET_BORDER_NONE);
        panelContent.addComponent(l);

        Link l2 = new Link("Sig.ma", new ExternalResource("http://sig.ma/"));
        l2.setTargetName("_blank");
        l2.setTargetBorder(Link.TARGET_BORDER_NONE);
        //panelContent.addComponent(l2);

        Link l3 = new Link("LOD cloud", new ExternalResource("http://lod.openlinksw.com/"));
        l3.setTargetName("_blank");
        l3.setTargetBorder(Link.TARGET_BORDER_NONE);
        panelContent.addComponent(l3);

        panel.setContent(panelContent);
        onlineToolsTab.addComponent(panel);

        // The composition root MUST be set
        setCompositionRoot(onlineToolsTab);
    }

    // propagate the information of one tab to another.
    public void setDefaults() {
    };

};