/**
* Copyright (C) 2010 Peter Karich <jetwick_@_pannous_._info>
*
* 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 de.jetwick.ui;
import de.jetwick.es.ElasticTweetSearch;
import de.jetwick.es.JetwickQuery;
import de.jetwick.ui.util.LabeledLink;
import de.jetwick.util.Helper;
import de.jetwick.util.MapEntry;
import java.util.ArrayList;
import java.util.List;
import java.util.Map.Entry;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxFallbackLink;
import org.apache.wicket.behavior.AttributeAppender;
import org.apache.wicket.behavior.HeaderContributor;
import org.apache.wicket.markup.html.IHeaderContributor;
import org.apache.wicket.markup.html.IHeaderResponse;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.Model;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.search.facet.terms.TermsFacet;
/**
*
* @author Peter Karich, peat_hal 'at' users 'dot' sourceforge 'dot' net
*/
public class UrlTrendPanel extends Panel {
private static String TITLE = "Links found in your search results";
private List<Entry<String, Long>> urls = new ArrayList<Entry<String, Long>>();
private List<Boolean> filter = new ArrayList<Boolean>();
private String cssString = "";
private int counter = 0;
public UrlTrendPanel(String id) {
super(id);
// to hide + show on ajax request
setOutputMarkupPlaceholderTag(true);
// TODO WICKET: update urlTitle even if we call only update(rsp)
add(new ListView("urlTitle", filter) {
@Override
public void populateItem(final ListItem item) {
boolean filteredUrl = (Boolean) item.getModelObject();
if (filteredUrl) {
item.add(new LabeledLink("filterName", "< " + TITLE) {
@Override
public void onClick(AjaxRequestTarget target) {
onUrlClick(target, null);
}
}.add(new AttributeAppender("title", new Model("Deselect all url filters"), " ")));
} else
item.add(new Label("filterName", TITLE));
}
});
ListView urlListView = new ListView("urls", urls) {
@Override
public void populateItem(final ListItem item) {
final Entry<String, Long> url = (Entry) item.getModelObject();
String title = url.getKey();
if (title.startsWith("_")) {
int index2 = title.indexOf("_", 1);
if (index2 > 1)
title = title.substring(index2 + 1);
}
title = Helper.trimAll(title);
title = Helper.htmlEntityDecode(title);
Link contextLink = new AjaxFallbackLink("urlLink") {
@Override
public void onClick(AjaxRequestTarget target) {
onUrlClick(target, url.getKey());
}
};
contextLink.add(new AttributeAppender("title",
new Model("View Url in Context of " + url.getValue() + " tweets"), " "));
item.add(contextLink);
Link directLink = new AjaxFallbackLink("directLink") {
@Override
public void onClick(AjaxRequestTarget target) {
onDirectUrlClick(target, url.getKey());
}
};
item.add(directLink);
directLink.add(new Label("urlLabel", title));
directLink.add(new AttributeAppender("title", new Model(title), " "));
}
};
add(urlListView);
HeaderContributor c = new HeaderContributor(new IHeaderContributor() {
@Override
public void renderHead(IHeaderResponse response) {
response.renderString("<style type='text/css'>\n" + cssString + "</style>");
}
});
add(c);
}
public void addUrl(String cssClass) {
cssString += "." + cssClass + ":hover .url-more { display: block;}\n";
cssString += "." + cssClass + ":hover .url-less { display: none;}";
}
protected void onUrlClick(AjaxRequestTarget target, String name) {
}
protected void onDirectUrlClick(AjaxRequestTarget target, String name) {
}
public void update(SearchResponse rsp, JetwickQuery query) {
cssString = "";
counter = 0;
filter.clear();
filter.add(false);
urls.clear();
if (rsp != null) {
for (Entry<String, Object> e : query.getFilterQueries()) {
if (e.getKey().equals(ElasticTweetSearch.FIRST_URL_TITLE))
filter.set(0, true);
}
if (rsp.facets() != null) {
TermsFacet tf = (TermsFacet) rsp.facets().facet(ElasticTweetSearch.FIRST_URL_TITLE);
if (tf != null)
for (TermsFacet.Entry e : tf.entries()) {
String str = e.getTerm();
// although we avoid indexing empty title -> its save to do it again ;-)
if (!str.isEmpty())
urls.add(new MapEntry<String, Long>(str, (long) e.count()));
}
}
}
setVisible(urls.size() > 0);
}
}