svn-gvsig-desktop / trunk / extensions / extNormalization / src / org / gvsig / normalization / operations / NormAlgorithm.java @ 22982
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2008 Prodevelop S.L. main development
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*/
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package org.gvsig.normalization.operations; |
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import java.text.DecimalFormat; |
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import java.text.DecimalFormatSymbols; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.Locale; |
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import javax.swing.event.ChangeEvent; |
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import javax.swing.event.ChangeListener; |
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import org.apache.log4j.Logger; |
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import org.gvsig.patterns.normalization.Datevalue; |
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import org.gvsig.patterns.normalization.Decimalvalue; |
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import org.gvsig.patterns.normalization.Element; |
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import org.gvsig.patterns.normalization.Fieldtype; |
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import org.gvsig.patterns.normalization.Integervalue; |
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import org.gvsig.patterns.normalization.Patternnormalization; |
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import org.gvsig.patterns.normalization.Stringvalue; |
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/**
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* This class tokens strings
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*
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* @author <a href="mailto:jsanz@prodevelop.es"> Jorge Gaspar Sanz Salinas</a>
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* @author <a href="mailto:vsanjaime@prodevelop.es"> Vicente Sanjaime Calvet</a>
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*
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*/
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public class NormAlgorithm { |
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// ATTRIBUTES
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private static final Logger log = Logger.getLogger(NormAlgorithm.class); |
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private Patternnormalization pat;
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private int numFields; |
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private int row; |
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private Element[] aad; |
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@SuppressWarnings("unchecked") |
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private ArrayList listeners = new ArrayList(); |
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/**
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* Builder
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*
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* @param _pat
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* Normalization pattern
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*/
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public NormAlgorithm(Patternnormalization _pat) {
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pat = _pat; |
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aad = pat.getArrayElements(); |
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numFields = aad.length; |
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} |
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|
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// METHODS
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/**
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* This method cuts a chain in several parts and they are returned in a List
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*
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* @param _chain
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* strings
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* @return list with the strings tokenized
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*/
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@SuppressWarnings("unchecked") |
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public List splitChain(String _chain) { |
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String preChain = _chain;
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String postChain = ""; |
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List subStrings = new ArrayList(); |
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// EXCEPTIONAL CASES
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if(_chain == null){ |
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return subStrings;
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} |
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else if (_chain.compareToIgnoreCase("") == 0) { |
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subStrings.add(_chain); |
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return subStrings;
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} |
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// NORMAL CASE
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else {
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int fw = 0; |
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int init = 0; |
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String subChain = ""; |
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for (int i = 0; i < numFields; i++) { |
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if (preChain.length() == 0) { |
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return subStrings;
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} else {
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fw = aad[i].getFieldwidth(); |
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// Cut chain with fixed width
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if (fw > 0 && preChain.length() > fw) { |
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subChain = preChain.substring(init, fw); |
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subStrings.add(subChain); |
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postChain = preChain.substring(fw); |
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preChain = postChain; |
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} else if (fw > 0 && preChain.length() <= fw) { |
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subStrings.add(preChain); |
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return subStrings;
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} |
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// Cut chain with separators
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else {
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// Load specific separators
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List separators = loadSpecificSeparators(aad[i]);
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boolean join = withJoinSeparators(aad[i]);
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// Search the first delimiter in the chain
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int posi = calculatePosition(separators, preChain);
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int tamSep = calculateSizeSep(separators, preChain);
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// Firsts elements
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if (i < numFields - 1) { |
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if (join) {
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while (posi == 0) { |
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preChain = deleteFirst(preChain); |
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posi = calculatePosition(separators, |
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preChain); |
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if(preChain.length() == 0){ |
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break;
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} |
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} |
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subChain = preChain.substring(0, posi);
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try {
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postChain = preChain.substring(posi |
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+ tamSep); |
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} catch (Exception e) { |
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postChain = "";
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} |
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subStrings.add(subChain); |
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preChain = postChain; |
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} else {
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subChain = preChain.substring(0, posi);
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postChain = preChain.substring(posi + tamSep); |
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subStrings.add(subChain); |
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preChain = postChain; |
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} |
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} |
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// Last element
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else {
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subStrings.add(preChain); |
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} |
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} |
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} |
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} |
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} |
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return subStrings;
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} |
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/**
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* This method cuts a chain in several parts from separators
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*
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* @param chain
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* string
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* @param fields
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* fields number
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* @param separators
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* array of characters
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* @param joinDelimiters
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* with or without joinDelimiters
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* @return list with the strings tokenized
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*/
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@SuppressWarnings("unchecked") |
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public static List splitChainBySeparators(String chain, int fields, |
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String[] separators, boolean joinDelimiters) { |
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List subStrings = new ArrayList(); |
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int posTemp = -1; |
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String separator;
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String chain2 = chain;
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int campos = fields;
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// EXCEPTIONAL CASES
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if (chain.compareToIgnoreCase("") == 0 || campos == 0 |
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|| separators.length < 1) {
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subStrings.add(chain); |
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return subStrings;
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} |
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// NORMAL CASE
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else {
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// Only (parts-1) loops
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for (int i = 0; i < (campos - 1); i++) { |
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int posi = Integer.MAX_VALUE; |
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String firstChain;
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for (int j = 0; j < separators.length; j++) { |
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separator = separators[j]; |
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posTemp = chain2.indexOf(separator); |
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if (posTemp != -1 && posTemp < posi) { |
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posi = posTemp; |
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} |
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posTemp = -1;
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} |
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if (posi == 0 && joinDelimiters) { |
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campos++; |
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chain2 = chain2.substring(posi + 1);
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} else {
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firstChain = chain2.substring(0, posi);
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chain2 = chain2.substring(posi + 1);
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subStrings.add(firstChain); |
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// In the last loop add the first chain and the rest of
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// chain
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if (i == (campos - 2)) { |
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subStrings.add(chain2); |
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} |
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} |
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} |
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return subStrings;
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} |
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} |
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/**
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* This method cuts a chain in several parts from fixed width
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*
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* @param chain
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* string
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* @param fieldWidth
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* array with fields widths
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* @return list with the strings tokenized
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*/
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@SuppressWarnings("unchecked") |
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public static List splitChainByFixedWidth(String chain, int[] fieldWidth) { |
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List subStrings = new ArrayList(); |
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int elements = fieldWidth.length;
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String subChain;
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int inicio = 0; |
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int fin = 0; |
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// EXCEPTIONAL CASES
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if (chain.compareToIgnoreCase("") == 0 || fieldWidth.length < 1) { |
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subStrings.add(chain); |
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return subStrings;
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} |
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// NORMAL CASE
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else {
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for (int i = 0; i < elements; i++) { |
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fin = fin + fieldWidth[i]; |
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subChain = chain.substring(inicio, fin); |
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subStrings.add(subChain); |
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inicio = fin; |
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} |
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return subStrings;
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} |
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} |
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/**
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* This method filters the split chains with the in-separators
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*
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* @param chains
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* strings of the one row
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* @return strings filtered by type
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*/
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@SuppressWarnings("unchecked") |
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public List filterSplitChains(List chains) { |
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DecimalFormat numForm = (DecimalFormat) DecimalFormat |
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.getInstance(Locale.getDefault());
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DecimalFormatSymbols simb = numForm.getDecimalFormatSymbols();
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Fieldtype nft = null;
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String decsep;
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char cdecsep;
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String thosep;
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char cthosep;
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String txsep;
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List postChain = new ArrayList(); |
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String aux = ""; |
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for (int i = 0; i < numFields; i++) { |
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nft = aad[i].getFieldtype(); |
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decsep = aad[i].getInfieldseparators().getDecimalseparator().trim(); |
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cdecsep = decsep.compareTo("") == 0 ? (char) 0x20 : decsep |
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.charAt(0);
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thosep = aad[i].getInfieldseparators().getThousandseparator().trim(); |
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cthosep = thosep.compareTo("") == 0 ? (char) 0x20 : thosep |
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.charAt(0);
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txsep = aad[i].getInfieldseparators().getTextseparator().trim(); |
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if (txsep.compareToIgnoreCase("\"") == 0) { |
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txsep = "\"";
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} |
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simb.setDecimalSeparator(cdecsep); |
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try {
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simb.setGroupingSeparator(cthosep); |
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} catch (RuntimeException e1) { |
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log.error("Error setting the group separator", e1);
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} |
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// Fill fields empties
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if (chains.size() < numFields) {
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for (int j = chains.size(); j < numFields; j++) { |
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chains.add(j, "");
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} |
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} |
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if (((Integervalue) nft.getIntegervalue()) != null |
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|| ((Decimalvalue) nft.getDecimalvalue()) != null) {
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numForm.setDecimalFormatSymbols(simb); |
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try {
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String cadena = ((String) chains.get(i)).trim(); |
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int num = cadena.length();
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boolean comproba = test(cadena, cdecsep, cthosep);
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if (num > 0 && comproba) { |
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aux = (numForm.parse(cadena)).toString().trim(); |
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} else {
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aux = "";
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} |
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} catch (Exception e) { |
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aux = "";
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} |
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} |
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// Field type (VARCHAR)
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if (((Stringvalue) nft.getStringvalue()) != null) { |
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String cadena = (String) chains.get(i); |
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if (cadena != null) { |
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aux = cadena.replace(txsep, "");
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} else {
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aux = "";
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} |
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} |
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// Field type (DATE)
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if (((Datevalue) nft.getDatevalue()) != null) { |
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String cadena = (String) chains.get(i); |
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if (cadena.length() > 0 || cadena != null) { |
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aux = cadena.replace(txsep, "");
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} else {
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aux = "";
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} |
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} |
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postChain.add(aux); |
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} |
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return postChain;
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} |
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/**
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* This method registers the listeners
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*
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* @param l
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* listener
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*/
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@SuppressWarnings("unchecked") |
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public void registerListener(ChangeListener l) { |
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this.listeners.add(l);
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} |
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/**
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* This method remove the listener registred
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*
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* @param l
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* listener
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*/
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public void removeListener(ChangeListener l) { |
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this.listeners.remove(l);
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} |
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/**
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* This method removes all listeners
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*/
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public void removeAllListeners() { |
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this.listeners.clear();
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} |
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/**
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*
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* @param evt
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* event
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*/
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public void update(ChangeEvent evt) { |
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for (int i = 0; i < listeners.size(); i++) { |
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((ChangeListener) listeners.get(i)).stateChanged(evt);
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} |
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} |
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/**
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* Add message
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*
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* @param message
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*/
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public void update(String message) { |
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ChangeEvent evt = new ChangeEvent(message); |
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update(evt); |
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} |
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/**
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* Set the row
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*
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* @param _row
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*/
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public void setRow(int _row) { |
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row = _row; |
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} |
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/**
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* This method loads the join separators attribute of one Element
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*
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* @param ad
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* @return with or without joinSeparators
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*/
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private boolean withJoinSeparators(Element ad) { |
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return ad.getFieldseparator().getJoinsep();
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} |
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/**
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* This method deletes the first element of one substring
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*
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* @param chain
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* initial string
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* @return string
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*/
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private String deleteFirst(String chain) { |
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String del = chain.substring(1); |
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return del;
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} |
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/**
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* This method gets the first position in the string of the separators
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* group.
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*
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* @param separators
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* separators characters list
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* @param preChain
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* initial string
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* @return
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*/
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@SuppressWarnings("unchecked") |
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private int calculatePosition(List separators, String preChain) { |
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String separator;
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int posTemp = -1; |
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int posi = Integer.MAX_VALUE; |
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for (int j = 0; j < separators.size(); j++) { |
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separator = (String) separators.get(j);
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posTemp = preChain.indexOf(separator); |
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if (posTemp != -1 && posTemp < posi) { |
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posi = posTemp; |
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} |
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posTemp = -1;
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} |
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if (posi > preChain.length()) {
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posi = preChain.length(); |
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} |
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return posi;
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} |
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|
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/**
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* This method calculates the number of elements of one separators
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*
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* @param separators
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* @param preChain
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* @return number of elements
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*/
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|
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@SuppressWarnings("unchecked") |
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private int calculateSizeSep(List separators, String preChain) { |
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|
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String separator;
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int posTemp = -1; |
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int posi = Integer.MAX_VALUE; |
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String sep = ""; |
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for (int j = 0; j < separators.size(); j++) { |
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separator = (String) separators.get(j);
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posTemp = preChain.indexOf(separator); |
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if (posTemp != -1 && posTemp < posi) { |
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posi = posTemp; |
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sep = separator; |
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} |
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posTemp = -1;
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} |
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return sep.length();
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} |
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|
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/**
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* This method loads the specifics separators of one Element
|
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*
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* @param adrElem
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* @return separators list
|
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*/
|
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@SuppressWarnings("unchecked") |
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private List loadSpecificSeparators(Element adrElem) { |
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List separators = new ArrayList(); |
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if (adrElem.getFieldseparator().getColonsep()) {
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separators.add(",");
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} |
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if (adrElem.getFieldseparator().getSemicolonsep()) {
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separators.add(";");
|
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} |
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if (adrElem.getFieldseparator().getTabsep()) {
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separators.add("\t");
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} |
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if (adrElem.getFieldseparator().getSpacesep()) {
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separators.add(" ");
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} |
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if (adrElem.getFieldseparator().getOthersep() != null |
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&& adrElem.getFieldseparator().getOthersep() |
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.compareToIgnoreCase("") != 0) { |
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separators.add((String) adrElem.getFieldseparator().getOthersep());
|
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} |
| 546 |
|
| 547 |
return separators;
|
| 548 |
} |
| 549 |
|
| 550 |
/**
|
| 551 |
* This method tests the numbers format
|
| 552 |
*
|
| 553 |
* @param str
|
| 554 |
* @param dec
|
| 555 |
* @param sep
|
| 556 |
* @return true if there aren't other characters
|
| 557 |
*/
|
| 558 |
private boolean test(String str, char dec, char sep) { |
| 559 |
String str2 = str.replaceAll("[0-9]", ""); |
| 560 |
str2 = str2.replaceAll("-", ""); |
| 561 |
|
| 562 |
String str3 = str2;
|
| 563 |
if (str2.indexOf(dec) >= 0) { |
| 564 |
int ind = str2.indexOf(String.valueOf(dec)); |
| 565 |
str3 = str2.substring(0, ind)
|
| 566 |
+ str2.substring(ind + 1, str2.length());
|
| 567 |
} |
| 568 |
String str4 = str3;
|
| 569 |
if (str3.indexOf(sep) >= 0) { |
| 570 |
int ind = str3.indexOf(String.valueOf(sep)); |
| 571 |
str4 = str3.substring(0, ind)
|
| 572 |
+ str3.substring(ind + 1, str3.length());
|
| 573 |
} |
| 574 |
|
| 575 |
return str4.length() == 0; |
| 576 |
} |
| 577 |
|
| 578 |
} |