Revision 1405 org.gvsig.tools/library/trunk/org.gvsig.tools/org.gvsig.tools.lib/src/main/java/org/gvsig/tools/dataTypes/impl/coercion/CoerceToInt.java
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* Copyright (C) 2007-2013 gvSIG Association. |
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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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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* 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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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* 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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* You should have received a copy of the GNU General Public License along with |
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* this program; if not, write to the Free Software Foundation, Inc., 51 |
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* |
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* For any additional information, do not hesitate to contact us |
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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* For any additional information, do not hesitate to contact us at info AT
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* gvsig.com, or visit our website www.gvsig.com. |
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*/ |
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package org.gvsig.tools.dataTypes.impl.coercion; |
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import java.text.NumberFormat; |
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import java.text.ParsePosition; |
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import java.util.Locale; |
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import org.apache.commons.lang3.StringUtils; |
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import org.gvsig.tools.dataTypes.CoercionException; |
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import org.gvsig.tools.dataTypes.DataTypesManager.Coercion; |
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import org.gvsig.tools.dataTypes.DataTypesManager.CoercionWithLocale;
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public class CoerceToInt implements Coercion { |
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public class CoerceToInt implements CoercionWithLocale {
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public Object coerce(Object value) throws CoercionException { |
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if( value == null ) { |
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return null; |
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} |
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try { |
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if( ! (value instanceof Integer) ) { |
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if( value instanceof Number ) { |
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value = new Integer(((Number) value).intValue()); |
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} else { |
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String s = value.toString(); |
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if( s == null ) { |
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return null; |
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} |
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s = s.trim().toLowerCase(); |
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if( s.length()==0 ) { |
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return null; |
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} |
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if( s.startsWith("0x")) { |
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value = Integer.valueOf(s.substring(2), 16); |
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} else { |
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value = Integer.valueOf(s); |
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} |
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} |
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} |
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return value; |
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} catch(Exception e) { |
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throw new CoercionException(e); |
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} |
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} |
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@Override |
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public Object coerce(Object value) throws CoercionException { |
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if (value == null) { |
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return null; |
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} |
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try { |
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if (!(value instanceof Integer)) { |
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if (value instanceof Number) { |
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value = ((Number) value).intValue(); |
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} else { |
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String s = value.toString(); |
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if (s == null) { |
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return null; |
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} |
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s = s.trim().toLowerCase(); |
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if (s.length() == 0) { |
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return null; |
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} |
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if (s.startsWith("0x")) { |
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value = Integer.valueOf(s.substring(2), 16); |
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} else { |
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try { |
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value = Integer.valueOf(s); |
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} catch (NumberFormatException ex) { |
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value = Float.valueOf(s); |
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value = ((Number) value).intValue(); |
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} |
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} |
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} |
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} |
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return value; |
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} catch (Exception e) { |
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throw new CoercionException(e); |
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} |
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} |
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@Override |
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public Object coerce(Object value, Locale locale) throws CoercionException { |
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if (value == null) { |
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return null; |
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} |
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try { |
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if (!(value instanceof Integer)) { |
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if (value instanceof Number) { |
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value = ((Number) value).intValue(); |
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} else { |
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String s = value.toString().trim().toLowerCase(); |
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if( StringUtils.isBlank(s) ) { |
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return null; |
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} |
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s = s.trim().toLowerCase(); |
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if (s.length() == 0) { |
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return null; |
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} |
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if (s.startsWith("0x")) { |
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value = Integer.valueOf(s.substring(2), 16); |
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} else { |
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try { |
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value = Integer.valueOf(s); |
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} catch (NumberFormatException ex) { |
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ParsePosition p = new ParsePosition(0); |
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NumberFormat nf = NumberFormat.getInstance(locale); |
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Number num = nf.parse(s, p); |
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if (p.getErrorIndex() > 0 || p.getIndex() < s.length()) { |
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throw new CoercionException("Can't coerce '"+s+"' to integer with locale " + (locale==null?"null":locale.getLanguage()) + "(error index "+p.getErrorIndex()+", index "+p.getIndex()+")."); |
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} |
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value = ((Number) num).intValue(); |
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} |
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} |
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} |
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} |
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return value; |
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} catch (Exception e) { |
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throw new CoercionException("Can't coerce '"+(value==null?"null":value.toString())+"' to integer with locale " + (locale==null?"null":locale.getLanguage())+"'.",e); |
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} |
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} |
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} |
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