001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
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.plugins.design.batch;
021    
022    import org.sonar.api.design.Dependency;
023    import org.sonar.api.resources.Resource;
024    import org.sonar.graph.Dsm;
025    import org.sonar.graph.DsmCell;
026    
027    public final class DsmSerializer {
028    
029      private Dsm dsm;
030      private StringBuilder json;
031    
032      private DsmSerializer(Dsm<Resource> dsm) {
033        this.dsm = dsm;
034        this.json = new StringBuilder();
035      }
036    
037      private String serialize() {
038        json.append('[');
039        serializeRows();
040        json.append(']');
041        return json.toString();
042      }
043    
044      private void serializeRows() {
045        for (int y = 0; y < dsm.getDimension(); y++) {
046          if (y > 0) {
047            json.append(',');
048          }
049          serializeRow(y);
050        }
051      }
052    
053      private void serializeRow(int y) {
054        Resource resource = (Resource) dsm.getVertex(y);
055    
056        json.append("{");
057        if (resource != null) {
058          json.append("\"i\":");
059          json.append(resource.getId());
060          json.append(",\"n\":\"");
061          json.append(resource.getName());
062          json.append("\",\"q\":\"");
063          json.append(resource.getQualifier());
064          json.append("\",\"v\":[");
065          for (int x = 0; x < dsm.getDimension(); x++) {
066            if (x > 0) {
067              json.append(',');
068            }
069            serializeCell(y, x);
070          }
071          json.append("]");
072        }
073        json.append("}");
074      }
075    
076      private void serializeCell(int y, int x) {
077        DsmCell cell = dsm.getCell(x, y);
078        json.append('{');
079        if (cell.getEdge() != null && cell.getWeight() > 0) {
080          Dependency dep = (Dependency) cell.getEdge();
081          json.append("\"i\":");
082          json.append(dep.getId());
083          json.append(",\"w\":");
084          json.append(cell.getWeight());
085        }
086        json.append('}');
087      }
088    
089      public static String serialize(Dsm<Resource> dsm) {
090        return new DsmSerializer(dsm).serialize();
091      }
092    }