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package org.hisp.dhis.validationrule.action;
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* Copyright (c) 2004-2007, University of Oslo
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of the HISP project nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import org.hisp.dhis.expression.ExpressionService;
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import org.hisp.dhis.i18n.I18n;
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import com.opensymphony.xwork.ActionSupport;
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* @author Lars Helge Overland
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* @version $Id: GetFormulaTextAction.java 3814 2007-11-02 12:11:54Z larshelg $
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public class GetTextualExpressionAction
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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private ExpressionService expressionService;
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public void setExpressionService( ExpressionService expressionService )
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this.expressionService = expressionService;
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public void setI18n( I18n i18n )
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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private String expression;
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public void setExpression( String formula )
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this.expression = formula;
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private String textualExpression;
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public String getTextualExpression()
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return textualExpression;
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// -------------------------------------------------------------------------
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// Action implementation
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// -------------------------------------------------------------------------
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public String execute()
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textualExpression = getExpressionDescription();
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// -------------------------------------------------------------------------
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// -------------------------------------------------------------------------
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public String getExpressionDescription()
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String description = null;
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if ( expression != null )
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int result = expressionService.expressionIsValid( expression );
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if ( result == ExpressionService.VALID )
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description = expressionService.getExpressionDescription( expression );
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else if ( result == ExpressionService.DATAELEMENT_ID_NOT_NUMERIC )
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description = i18n.getString( "dataelement_id_must_be_number" );
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else if ( result == ExpressionService.CATEGORYOPTIONCOMBO_ID_NOT_NUMERIC )
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description = i18n.getString( "category_option_combo_id_must_be_number" );
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else if ( result == ExpressionService.DATAELEMENT_DOES_NOT_EXIST )
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description = i18n.getString( "id_does_not_reference_dataelement" );
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else if ( result == ExpressionService.CATEGORYOPTIONCOMBO_DOES_NOT_EXIST )
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description = i18n.getString( "id_does_not_reference_category_option_combo" );
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else if ( result == ExpressionService.EXPRESSION_NOT_WELL_FORMED )
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description = i18n.getString( "expression_not_well_formed" );