James Moger
2012-03-12 98b4edf75ffe0fd57caece27701250e42c901ff3
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/*
 * Copyright 2012 gitblit.com.
 *
 * 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 com.gitblit.wicket.pages;
 
import java.util.ArrayList;
import java.util.List;
 
import org.apache.wicket.PageParameters;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.ListMultipleChoice;
import org.apache.wicket.markup.html.form.StatelessForm;
import org.apache.wicket.markup.html.form.TextField;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.markup.repeater.data.DataView;
import org.apache.wicket.markup.repeater.data.ListDataProvider;
import org.apache.wicket.model.Model;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
 
import com.gitblit.Constants.SearchType;
import com.gitblit.GitBlit;
import com.gitblit.models.SearchResult;
import com.gitblit.utils.LuceneUtils;
import com.gitblit.utils.StringUtils;
import com.gitblit.wicket.WicketUtils;
import com.gitblit.wicket.panels.LinkPanel;
 
public class LucenePage extends RootPage {
 
    public LucenePage() {
        super();
        setup(null);
    }
 
    public LucenePage(PageParameters params) {
        super(params);
        setup(params);
    }
 
    private void setup(PageParameters params) {
        setupPage("", "");
        
        String repository = null;        
        String value = null;
        com.gitblit.Constants.SearchType searchType = null;
 
        if (params != null) {
            repository = WicketUtils.getRepositoryName(params);
            value = WicketUtils.getSearchString(params);
            String type = WicketUtils.getSearchType(params);
            searchType = com.gitblit.Constants.SearchType.forName(type);
        }
        
        final List<SearchResult> results = new ArrayList<SearchResult>();
        ListDataProvider<SearchResult> resultsDp = new ListDataProvider<SearchResult>(results);
        final DataView<SearchResult> resultsView = new DataView<SearchResult>("searchResults", resultsDp) {
            private static final long serialVersionUID = 1L;
            public void populateItem(final Item<SearchResult> item) {
                SearchResult sr = item.getModelObject();
                switch(sr.type) {
                case commit: {
                    Label icon = WicketUtils.newIcon("type", "icon-refresh");
                    WicketUtils.setHtmlTooltip(icon, "commit");
                    item.add(icon);
                    item.add(new LinkPanel("summary", null, sr.summary, CommitPage.class, WicketUtils.newObjectParameter(sr.repository, sr.commitId)));
                    break;
                }
                case blob: {
                    Label icon = WicketUtils.newIcon("type", "icon-file");
                    WicketUtils.setHtmlTooltip(icon, "blob");
                    item.add(icon);
                    item.add(new LinkPanel("summary", null, sr.path, BlobPage.class, WicketUtils.newPathParameter(sr.repository, sr.branch, sr.path)));
                    break;
                }
                case issue: {
                    Label icon = WicketUtils.newIcon("type", "icon-file");
                    WicketUtils.setHtmlTooltip(icon, "issue");
                    item.add(icon);
                    item.add(new Label("summary", "issue: " + sr.issueId));
                    break;
                }
                }
                item.add(new Label("fragment", sr.fragment).setEscapeModelStrings(false).setVisible(!StringUtils.isEmpty(sr.fragment)));
                item.add(new LinkPanel("repository", null, sr.repository, SummaryPage.class, WicketUtils.newRepositoryParameter(sr.repository)));
                item.add(new LinkPanel("branch", "branch", StringUtils.getRelativePath(Constants.R_HEADS, sr.branch), LogPage.class, WicketUtils.newObjectParameter(sr.repository, sr.branch)));
                item.add(new Label("author", sr.author));
                item.add(WicketUtils.createTimestampLabel("date", sr.date, getTimeZone()));
            }
        };        
        
        // initial query
        final Model<String> fragment = new Model<String>();
        if (!StringUtils.isEmpty(value)) {
            if (searchType == SearchType.COMMIT) {
                fragment.setObject("type:" + searchType.name().toLowerCase() + " AND \"" + value + "\"");    
            } else {
                fragment.setObject(searchType.name().toLowerCase() + ":\"" + value + "\"");
            }
        }
        
        // selected repositories
        final Model<ArrayList<String>> repositories = new Model<ArrayList<String>>();
        if (!StringUtils.isEmpty(repository)) {            
            ArrayList<String> list = new ArrayList<String>();
            list.add(repository);
            repositories.setObject(list);
        }
        
        // search form
        StatelessForm<Void> form = new StatelessForm<Void>("searchForm") {
            
            private static final long serialVersionUID = 1L;
 
            @Override
            public void onSubmit() {
                String f = fragment.getObject();
                if (StringUtils.isEmpty(f)) {
                    error("Query is empty!");
                    return;
                }                
                if (repositories.getObject().size() == 0) {
                    error("Please select one or more repositories!");
                    return;
                }
                results.clear();
                results.addAll(search(repositories, fragment));
                resultsView.setVisible(true);
            }
        };
        ListMultipleChoice<String> selections = new ListMultipleChoice<String>("repositories", repositories, GitBlit.self().getRepositoryList());
        selections.setMaxRows(10);
        form.add(selections);
        form.add(new TextField<String>("fragment", fragment));
        add(form);
        if (!StringUtils.isEmpty(repository) && !StringUtils.isEmpty(fragment.getObject())) {
            // search is defined by url parameters
            results.clear();
            results.addAll(search(repositories, fragment));
            add(resultsView.setVisible(true));
        } else {
            // no pre-defined search
            add(resultsView.setVisible(false));
        }
    }
    
    private List<SearchResult> search(Model<ArrayList<String>> repositories, Model<String> fragment) {
        List<Repository> repos = new ArrayList<Repository>();
        for (String r : repositories.getObject()) {
            repos.add(GitBlit.self().getRepository(r));
        }
        List<SearchResult> srs = LuceneUtils.search(fragment.getObject(), 100, repos.toArray(new Repository[repos.size()]));
        for (Repository r : repos) {
            r.close();
        }
        return srs;
    }
}