org.turro.file.FileComparator Class Reference

Inheritance diagram for org.turro.file.FileComparator:

Collaboration diagram for org.turro.file.FileComparator:

Public Member Functions
	FileComparator (Properties props)
int	compare (Object o1, Object o2)

Detailed Description

Author

Lluis Turró Cutiller lluis.nosp@m.@tur.nosp@m.ro.or.nosp@m.g

Definition at line 28 of file FileComparator.java.

Constructor & Destructor Documentation

FileComparator()

org.turro.file.FileComparator.FileComparator

(

Properties

props

)

Creates a new instance of FileComparator

Definition at line 33 of file FileComparator.java.

                                          {
    this.props = props;
  }

Member Function Documentation

compare()

int org.turro.file.FileComparator.compare	(	Object	o1,
		Object	o2
	)

Uses file.ordering.[n].name and file.ordering.[n].order pairs to compare FileDocument entries. Possible fields are: directory, fileName, fileDate, fileSize. Ex.:

file.ordering.0.name=directory
file.ordering.0.order=asc
file.ordering.1.name=fileName
file.ordering.1.order=asc
file.ordering.2.name=fileDate
file.ordering.2.order=desc

Definition at line 50 of file FileComparator.java.

                                           {
    File f1 = (File) o1,
         f2 = (File) o2;
 
    String field;
    boolean desc;
    int result = 0;
    for(int i = 0; i < 10 && result == 0; i++) {
      field = props.getProperty("file.ordering." + i + ".name");
      desc = "desc".equals(props.getProperty("file.ordering." + i + ".order"));
      if(result == 0 && "directory".equals(field)) {
        if(!f1.isDirectory() && f2.isDirectory()) {
          result = 1;
        }
        else if(f1.isDirectory() && !f2.isDirectory()) {
          result = -1;
        }
        else {
          result = 0;
        }
        if(desc) result *= -1;
      }
      else if(result == 0 && "fileName".equals(field)) {
        result = f1.getName().compareTo(f2.getName());
        if(desc) result *= -1;
      }
      else if(result == 0 && "fileDate".equals(field)) {
        result = Long.valueOf(f1.lastModified()).compareTo(f2.lastModified());
        if(desc) result *= -1;
      }
      else if(!f1.isDirectory() && !f2.isDirectory() && result == 0 && "fileSize".equals(field)) {
        result = Long.valueOf(f1.length()).compareTo(f2.length());
        if(desc) result *= -1;
      }
    }
    return result;
  }

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The documentation for this class was generated from the following file:

• FileComparator.java