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1   /**
2    * Copyright (c) 2002-2011 "Neo Technology,"
3    * Network Engine for Objects in Lund AB [http://neotechnology.com]
4    *
5    * This file is part of Neo4j.
6    *
7    * Neo4j is free software: you can redistribute it and/or modify
8    * it under the terms of the GNU General Public License as published by
9    * the Free Software Foundation, either version 3 of the License, or
10   * (at your option) any later version.
11   *
12   * This program is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   * GNU General Public License for more details.
16   *
17   * You should have received a copy of the GNU General Public License
18   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
19   */
20  package org.neo4j.server.configuration;
21  
22  import static org.neo4j.server.ServerTestUtils.createTempDir;
23  import static org.neo4j.server.ServerTestUtils.writePropertyToFile;
24  
25  import java.io.File;
26  import java.io.IOException;
27  
28  public class DatabaseTuningPropertyFileBuilder {
29      private File parentDirectory = null;
30      private String mappedMemory = null;
31  
32      public static DatabaseTuningPropertyFileBuilder builder() {
33          return new DatabaseTuningPropertyFileBuilder();
34      }
35      
36      private DatabaseTuningPropertyFileBuilder() {}
37      
38      public File build() throws IOException {
39          if(parentDirectory == null) {
40              parentDirectory = createTempDir();
41          }
42         
43          File temporaryConfigFile = new File( parentDirectory, "neo4j.properties" );
44          
45          if(mappedMemory == null) {
46              writePropertyToFile("neostore.nodestore.db.mapped_memory", "25M", temporaryConfigFile);
47          } else {
48              writePropertyToFile("neostore.nodestore.db.mapped_memory", mappedMemory, temporaryConfigFile);
49          }
50          writePropertyToFile("neostore.relationshipstore.db.mapped_memory", "50M", temporaryConfigFile);
51          writePropertyToFile("neostore.propertystore.db.mapped_memory", "90M", temporaryConfigFile);
52          writePropertyToFile("neostore.propertystore.db.strings.mapped_memory", "130M", temporaryConfigFile);
53          writePropertyToFile("neostore.propertystore.db.arrays.mapped_memory", "150M", temporaryConfigFile);
54          
55          return temporaryConfigFile;
56      }
57  
58      public DatabaseTuningPropertyFileBuilder inDirectory(File parentDirectory) {
59          this.parentDirectory = parentDirectory;
60          return this;
61      }
62  
63      public DatabaseTuningPropertyFileBuilder mappedMemory(int i) {
64          this.mappedMemory = String.valueOf(i) + "M";
65          return this;
66      }
67  
68  }