content: /*
  * Copyright (c) 1997 - 2016
  * Actelion Pharmaceuticals Ltd.
  * Gewerbestrasse 16
  * CH-4123 Allschwil, Switzerland
  *
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright notice, this
  *    list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. Neither the name of the the copyright holder nor the
  *    names of its contributors may be used to endorse or promote products
  *    derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
  
  package com.actelion.research.chem.descriptor;
  
  import com.actelion.research.chem.*;
  
  public class DescriptorHandlerFFP512 extends AbstractDescriptorHandlerFP<StereoMolecule> {
  	public static final String VERSION = SSSearcherWithIndex.cIndexVersion;
  	private static DescriptorHandlerFFP512 sDefaultInstance;
  	private static final int sIntCount = (SSSearcherWithIndex.getNoOfKeys() + 31) / 32;
  
  	public static DescriptorHandlerFFP512 getDefaultInstance() {
  		synchronized(DescriptorHandlerFFP512.class) {
  			if (sDefaultInstance == null)
  				sDefaultInstance = new DescriptorHandlerFFP512();
  			}
  		return sDefaultInstance;
  		}
  
  	public DescriptorInfo getInfo() {
  		return DescriptorConstants.DESCRIPTOR_FFP512;
  		}
  
  	public String getVersion() {
  		return VERSION;
  		}
  
  	public int[] decode(String s) {
  		int[] descriptor = (s != null && s.length() == 128) ?
  			SSSearcherWithIndex.getIndexFromHexString(s) : super.decode(s);
  		return (descriptor != null && descriptor.length == sIntCount) ? descriptor : null;
  		}
  
  	public int[] decode(byte[] bytes) {
  		int[] descriptor = (bytes != null && bytes.length == 128) ?
  			SSSearcherWithIndex.getIndexFromHexString(bytes) : super.decode(bytes);
  		return (descriptor != null && descriptor.length == sIntCount) ? descriptor : null;
  		}
  
  	public int[] createDescriptor(StereoMolecule mol) {
  		int[] descriptor = new SSSearcherWithIndex().createIndex(mol);
  		return (descriptor == null) ? FAILED_OBJECT : descriptor;
  		}
  	
  	public DescriptorHandler<int[], StereoMolecule> getThreadSafeCopy() {
  		return this;
  		}
  	}
  