Examples of java.io.File.compareTo()

java.io.File.compareTo()
Answers the relative sort ordering of paths for the receiver and given argument. The ordering is platform dependent. @param another a File to compare the receiver to @return an int determined by comparing the two paths. The meaning isdescribed in the Comparable interface. @see Comparable

       * Block exists in volumeMap and the block file exists on the disk
       */
      // Compare block files
      File memFile = memBlockInfo.getBlockFile();
      if (memFile.exists()) {
        if (memFile.compareTo(diskFile) != 0) {
          DataNode.LOG.warn("Block file " + memFile.getAbsolutePath()
              + " does not match file found by scan "
              + diskFile.getAbsolutePath());
          // TODO: Should the diskFile be deleted?
        }

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      // Compare generation stamp
      if (memBlockInfo.getGenerationStamp() != diskGS) {
        File memMetaFile = getMetaFile(diskFile, memBlockInfo);
        if (memMetaFile.exists()) {
          if (memMetaFile.compareTo(diskMetaFile) != 0) {
            DataNode.LOG.warn("Metadata file in memory "
                + memMetaFile.getAbsolutePath()
                + " does not match file found by scan "
                + diskMetaFile.getAbsolutePath());
          }

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       * Block exists in volumeMap and the block file exists on the disk
       */
      // Compare block files
      File memFile = memBlockInfo.getBlockFile();
      if (memFile.exists()) {
        if (memFile.compareTo(diskFile) != 0) {
          DataNode.LOG.warn("Block file " + memFile.getAbsolutePath()
              + " does not match file found by scan "
              + diskFile.getAbsolutePath());
          // TODO: Should the diskFile be deleted?
        }

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      // Compare generation stamp
      if (memBlockInfo.getGenerationStamp() != diskGS) {
        File memMetaFile = DatanodeUtil.getMetaFile(diskFile, 
            memBlockInfo.getGenerationStamp());
        if (memMetaFile.exists()) {
          if (memMetaFile.compareTo(diskMetaFile) != 0) {
            DataNode.LOG.warn("Metadata file in memory "
                + memMetaFile.getAbsolutePath()
                + " does not match file found by scan "
                + diskMetaFile.getAbsolutePath());
          }

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     * @return
     */
    private boolean file1IsChildOfFile2(File tempBuildDir, File destDir) {
        File parent = tempBuildDir;
        for(int i = 0; i < 1000; i++) {
            if(parent.compareTo(destDir) == 0)
                return true;            
            parent = parent.getParentFile();
            if(parent == null)
                return false;
        }

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                    }


                    public boolean isActive() {
                        boolean isActive = false;
                        if (null != activeFile1) {
                            isActive = 0 == activeFile1.compareTo(file);
                        }
                        return isActive;
                    }
                });
            }

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        File[] files = rootDirectory.listFiles(filter);
        Arrays.sort(files, new Comparator() {
            public int compare(Object o1, Object o2) {
                File f1 = (File) o1;
                File f2 = (File) o2;
                return f2.compareTo(f1);
            }
        });
        for (int i = 0; i < files.length; i++) {
            File file = files[i];
            String name = file.getName();

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                }
                throw new IOException(t);
            }


        } finally {
            if (tmpFile.compareTo(cacheFile) != 0) {
                tmpFile.delete();
            }
        }
    }

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