/**
* Copyright (c) 2013, Institute of Information Systems (Sven Groppe and contributors of LUPOSDATE), University of Luebeck
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer.
* - 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.
* - Neither the name of the University of Luebeck 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 HOLDER 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 lupos.gui.operatorgraph.visualeditor.queryeditor.operators;
import java.util.HashSet;
import lupos.gui.operatorgraph.graphwrapper.GraphWrapper;
import lupos.gui.operatorgraph.prefix.Prefix;
import lupos.gui.operatorgraph.visualeditor.guielements.AbstractGuiComponent;
import lupos.gui.operatorgraph.visualeditor.guielements.VisualGraph;
import lupos.gui.operatorgraph.visualeditor.operators.Operator;
import lupos.gui.operatorgraph.visualeditor.queryeditor.guielements.RetrieveDataPanel;
import lupos.misc.util.OperatorIDTuple;
public class Construct extends RetrieveDataWithSolutionModifier {
public Construct(Prefix prefix) {
super(prefix);
}
public AbstractGuiComponent<Operator> draw(GraphWrapper gw, VisualGraph<Operator> parent) {
this.panel = new RetrieveDataPanel(gw, this, parent, "Construct");
((RetrieveDataPanel) this.panel).addDatasetClause();
((RetrieveDataPanel) this.panel).addSolutionModifier();
((RetrieveDataPanel) this.panel).finalize();
return this.panel;
}
public StringBuffer serializeOperator() {
StringBuffer ret = super.serializeOperator();
ret.append(this.serializeDatasetClause());
ret.append(this.serializeSolutionModifier());
return ret;
}
public StringBuffer serializeOperatorAndTree(HashSet<Operator> visited) {
StringBuffer ret = super.serializeOperator();
ret.append(this.serializeDatasetClauseAndWhereClause(visited));
ret.append(this.serializeSolutionModifier());
return ret;
}
public StringBuffer serializeDatasetClauseAndWhereClause(HashSet<Operator> visited) {
StringBuffer ret = this.serializeDatasetClause();
ret.append("{\n");
for(OperatorIDTuple<Operator> opIDT : this.succeedingOperators) {
Operator op = opIDT.getOperator();
if(op instanceof ConstructTemplateContainer) {
ret.append(op.serializeOperatorAndTree(visited));
}
}
ret.append("}\n");
// WHERE
ret.append("WHERE {\n");
for(OperatorIDTuple<Operator> opIDT : this.succeedingOperators) {
Operator op = opIDT.getOperator();
if(!(op instanceof ConstructTemplateContainer)) {
ret.append(opIDT.getOperator().serializeOperatorAndTree(visited));
}
}
ret.append("}\n");
return ret;
}
public boolean variableInUse(String variable, HashSet<Operator> visited) {
if(visited.contains(this))
return false;
visited.add(this);
if(super.variableInUse(variable, visited))
return true;
for(OperatorIDTuple<Operator> opIDT : this.succeedingOperators)
if(opIDT.getOperator().variableInUse(variable, visited))
return true;
return false;
}
public boolean canAddSucceedingOperator() {
return (this.succeedingOperators.size() < 2);
}
}