001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2009 SonarSource SA
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.api.web.gwt.client.webservices;
021    
022    import com.google.gwt.core.client.JavaScriptObject;
023    import com.google.gwt.json.client.JSONArray;
024    import com.google.gwt.json.client.JSONObject;
025    import com.google.gwt.json.client.JSONValue;
026    import org.sonar.api.web.gwt.client.Utils;
027    
028    import java.util.Map;
029    import java.util.TreeMap;
030    
031    public final class SourcesQuery extends AbstractResourceQuery<FileSource> {
032    
033      private Integer from;
034      private Integer length;
035    
036      public static final SourcesQuery get(String resourceKey) {
037        return new SourcesQuery(resourceKey);
038      }
039    
040      private SourcesQuery(String resourceKey) {
041        super(resourceKey);
042      }
043    
044      public SourcesQuery setFrom(Integer from) {
045        this.from = from;
046        return this;
047      }
048    
049      public SourcesQuery setLength(Integer length) {
050        this.length = length;
051        return this;
052      }
053    
054      @Override
055      public String toString() {
056        String url = Utils.getServerApiUrl() + "/sources?resource=" + getResourceKey() + "&";
057        if (length > 0) {
058          url += "from=" + from + "&to=" + (from + length) + "&";
059        }
060        return url;
061      }
062    
063      @Override
064      public void execute(QueryCallBack<FileSource> callback) {
065        JsonUtils.requestJson(this.toString(), new JSONHandlerDispatcher<FileSource>(callback) {
066          @Override
067          public FileSource parseResponse(JavaScriptObject obj) {
068            return parseLines(obj);
069          }
070        });
071      }
072    
073      private FileSource parseLines(JavaScriptObject obj) {
074        Map<Integer, String> sourceLines = new TreeMap<Integer, String>();
075        FileSource src = new FileSource(sourceLines);
076        JSONArray jsonArray = new JSONArray(obj);
077        if (jsonArray.size() == 0) return src;
078        JSONObject sources = jsonArray.get(0).isObject();
079        if (sources.size() == 0) return src;
080        int maxSize = new Double(Math.pow(2, 16)).intValue();
081        int currentLine = from == 0 ? 1 : from;
082        while (currentLine < maxSize) {
083          JSONValue line = sources.get(Integer.toString(currentLine));
084          if (line == null) {
085            break;
086          }
087          sourceLines.put(currentLine++, line.isString().stringValue());
088        }
089        return src;
090      }
091    
092    }