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/* |
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$Id$ |
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Copyright (C) 2006 Nicklas Nordborg, Martin Svensson |
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This file is part of BASE - BioArray Software Environment. |
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Available at http://base.thep.lu.se/ |
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BASE 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 3 |
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of the License, or (at your option) any later version. |
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|
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BASE 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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You should have received a copy of the GNU General Public License |
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along with BASE. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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package net.sf.basedb.util.jep; |
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import net.sf.basedb.core.BaseException; |
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import net.sf.basedb.core.DbControl; |
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import net.sf.basedb.core.DynamicQuery; |
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import net.sf.basedb.core.ReporterList; |
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import net.sf.basedb.core.query.Dynamic; |
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import net.sf.basedb.core.query.Restriction; |
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import net.sf.basedb.core.query.SqlResult; |
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import net.sf.basedb.util.BioAssaySetUtil; |
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|
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import java.util.Stack; |
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|
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import org.nfunk.jep.Node; |
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import org.nfunk.jep.ParseException; |
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|
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/** |
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A JEP function class that adds a <code>notInList(reporterListId)</code> function to a |
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JEP expression parser. The function will check if a reporter doesn't exists in the |
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reporter list with the ID given as an argument to this function. |
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<p> |
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To be able to use this function it must be registered with the JEP |
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parser and, before the expression is evaluated, a {@link SqlResult} object |
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must be set. |
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|
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@author Nicklas |
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@version 2.0 |
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@base.modified $Date$ |
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@see Jep |
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@see BioAssaySetUtil#createJepRestriction(DbControl, String, DynamicQuery) |
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*/ |
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public class NotInReporterListFunction |
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implements JepRestrictionFunction |
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{ |
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|
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private DbControl dc; |
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private int numParameters; |
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|
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/** |
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Create a new instance of this function. The new instance cannot be used |
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to dynamically evaluate expressions. It should only be used for converting |
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JEP formulas to {@link Restriction}:s. |
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@param dc Open DbControl to use when accessing database and checking permissions. |
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@see Jep#formulaToRestriction(String, JepFunction[]) |
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*/ |
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public NotInReporterListFunction(DbControl dc) |
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{ |
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this.dc = dc; |
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} |
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|
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/* |
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From the JepFunction interface |
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------------------------------------------- |
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*/ |
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/** |
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@return The string "notInList" |
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*/ |
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@Override |
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public String getFunctionName() |
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{ |
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return "notInList"; |
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} |
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// ------------------------------------------- |
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/* |
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From the JepRestrictionFunction interface |
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------------------------------------------- |
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*/ |
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/** |
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Use the {@link Dynamic#isNotPartOf(ReporterList)} method to create a |
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restriction checking that a reporter isn't found in the reporter list. |
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*/ |
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@Override |
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public Restriction toRestriction(Node node) |
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{ |
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int numChildren = node.jjtGetNumChildren(); |
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if (numChildren != 1) |
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{ |
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throw new BaseException("Invalid number of expressions for 'notInList' function: " + numChildren); |
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} |
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int reporterListId = Jep.nodeToInt(node.jjtGetChild(0)); |
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ReporterList list = ReporterList.getById(dc, reporterListId); |
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return Dynamic.isNotPartOf(list); |
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} |
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// ------------------------------------------- |
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/* |
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From the PostfixMathCommandI interface |
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------------------------------------------- |
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*/ |
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/** |
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@return Always 1 |
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*/ |
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@Override |
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public int getNumberOfParameters() |
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{ |
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return 1; |
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} |
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@Override |
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public void setCurNumberOfParameters(int n) |
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{ |
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this.numParameters = n; |
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} |
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@Override |
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public boolean checkNumberOfParameters(int n) |
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{ |
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return n == 1; |
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} |
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@Override |
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@SuppressWarnings({"rawtypes"}) |
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public void run(Stack stack) |
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throws ParseException |
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{ |
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if (stack == null || stack.empty()) |
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{ |
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throw new ParseException("Stack is empty"); |
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} |
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Object reporterListId = stack.pop(); |
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throw new ParseException("'notInList(" + reporterListId + ")' function doesn't support evaluation"); |
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} |
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// ------------------------------------------- |
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|
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} |