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Commit cf3a922f authored by Simon Eismann's avatar Simon Eismann
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Graphics engine is now only called if it is actually a 

PerformanceMetricQuery
parent 407bfd35
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core/tools.descartes.dql.core.engine/src/tools/descartes/dql/core/engine/query/QueryExecutionEngineImpl.java
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/**
* ==============================================
* DQL : Descartes Query Language
* ==============================================
*
* (c) Copyright 2014-2016, by Juergen Walter, Fabian Gorsler, Fabian Brosig and other contributors.
*
* Project Info: http://descartes.tools/dql
*
* All rights reserved. This software is made available under the terms of the
* Eclipse Public License (EPL) v1.0 as published by the Eclipse Foundation
* http://www.eclipse.org/legal/epl-v10.html
*
* This software is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Eclipse Public License (EPL)
* for more details.
*
* You should have received a copy of the Eclipse Public License (EPL)
* along with this software; if not visit http://www.eclipse.org or write to
* Eclipse Foundation, Inc., 308 SW First Avenue, Suite 110, Portland, 97204 USA
* Email: license (at) eclipse.org
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*/
package tools.descartes.dql.core.engine.query;
import static tools.descartes.dql.core.engine.util.QueryParserHelper.stringToModel;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.apache.log4j.Logger;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import tools.descartes.dql.connector.QueryProgressListener;
import tools.descartes.dql.core.engine.interpreter.ModelStructureQueryInterpreter;
import tools.descartes.dql.core.engine.interpreter.PerformanceMetricsQueryInterpreter;
import tools.descartes.dql.core.engine.interpreter.QueryInterpreter;
import tools.descartes.dql.core.engine.util.DQLLogger;
import tools.descartes.dql.lang.descartesQL.DescartesQL;
import tools.descartes.dql.lang.descartesQL.ListQuery;
import tools.descartes.dql.lang.descartesQL.ModelStructureQuery;
import tools.descartes.dql.lang.descartesQL.PerformanceIssueQuery;
import tools.descartes.dql.lang.descartesQL.PerformanceMetricsQuery;
import tools.descartes.dql.lang.descartesQL.SelectQuery;
import tools.descartes.dql.lang.descartesQL.UsingClause;
import tools.descartes.dql.models.mapping.mapping.EntityMapping;
import tools.descartes.dql.vizualization.GraphicsEngine;
import tools.descartes.dql.vizualization.GraphicsEngine;
public class QueryExecutionEngineImpl implements QueryExecutionEngine {
private final Logger log = DQLLogger.getLogger(this.getClass().getName());
private boolean validQuery = false;
private EObject query = null;
private ArrayList<EntityMapping> createEmptyResultList() {
return new ArrayList<EntityMapping>(0);
}
private List<EntityMapping> execute(List<QueryProgressListener> listeners) {
QueryInterpreter interpreter;
validQuery = false;
if (query == null) {
log.error("Query is null, aborting.");
return createEmptyResultList();
}
// Pick the right query interpreter for the incoming query instance
if (query instanceof ModelStructureQuery) {
interpreter = new ModelStructureQueryInterpreter((ModelStructureQuery) query, listeners);
} else if (query instanceof PerformanceMetricsQuery) {
interpreter = new PerformanceMetricsQueryInterpreter((PerformanceMetricsQuery) query, listeners);
} else if (query instanceof PerformanceIssueQuery) {
log.error("Performance Issues not yet supported, aborting.");
return createEmptyResultList();
} else {
log.error("No suitable QueryInterpreter found, aborting.");
return createEmptyResultList();
}
// Store state
validQuery = interpreter.interpretQuery();
// Pass back to GC
GraphicsEngine a = new GraphicsEngine("Query Result Visualization", interpreter.getResult());
query = null;
return interpreter.getResults();
}
@Override
public List<EntityMapping> execute(final DescartesQL query) {
return execute(query, new ArrayList<QueryProgressListener>());
}
@Override
public List<EntityMapping> execute(final Resource model) {
return execute(model, new ArrayList<QueryProgressListener>());
}
@Override
public List<EntityMapping> execute(final String query) {
return execute(query, new ArrayList<QueryProgressListener>());
}
@Override
public List<EntityMapping> execute(final DescartesQL query, List<QueryProgressListener> listeners) {
setModel(query);
return execute(listeners);
}
@Override
public List<EntityMapping> execute(final Resource model, List<QueryProgressListener> listeners) {
setModel(model);
return execute(listeners);
}
@Override
public List<EntityMapping> execute(final String query, List<QueryProgressListener> listeners) {
setModel(query);
return execute(listeners);
}
@Override
public boolean isValidQuery() {
return validQuery;
}
private void setModel(final DescartesQL query) {
this.query = query.getQuery();
}
private void setModel(final Resource model) {
EList<EObject> contents = null;
if (model == null) {
log.error("The model instance is null, aborting.");
return;
}
contents = model.getContents();
if (contents.size() != 1) {
log.error("Invalid model structure, more than one root element");
return;
}
query = ((DescartesQL) contents.get(0)).getQuery();
// relative to absolute paths
UsingClause clause = null;
if (query instanceof ListQuery) {
clause = ((ListQuery) query).getUsingClause();
} else if (query instanceof SelectQuery) {
clause = ((SelectQuery) query).getUsingClause();
}
if (clause != null) {
String location = clause.getModelReference().getModel().getLocation();
if (!new File(location).exists()) {
location = (new File(model.getURI().path())).getParentFile().getAbsolutePath() + File.separator
+ location;
clause.getModelReference().getModel().setLocation(location);
}
}
}
private void setModel(final String query) {
final DescartesQL queryModel = stringToModel(query);
this.query = queryModel.getQuery();
}
}
/**
* ==============================================
* DQL : Descartes Query Language
* ==============================================
*
* (c) Copyright 2014-2016, by Juergen Walter, Fabian Gorsler, Fabian Brosig and other contributors.
*
* Project Info: http://descartes.tools/dql
*
* All rights reserved. This software is made available under the terms of the
* Eclipse Public License (EPL) v1.0 as published by the Eclipse Foundation
* http://www.eclipse.org/legal/epl-v10.html
*
* This software is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Eclipse Public License (EPL)
* for more details.
*
* You should have received a copy of the Eclipse Public License (EPL)
* along with this software; if not visit http://www.eclipse.org or write to
* Eclipse Foundation, Inc., 308 SW First Avenue, Suite 110, Portland, 97204 USA
* Email: license (at) eclipse.org
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*/
package tools.descartes.dql.core.engine.query;
import static tools.descartes.dql.core.engine.util.QueryParserHelper.stringToModel;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import org.apache.log4j.Logger;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import tools.descartes.dql.connector.QueryProgressListener;
import tools.descartes.dql.core.engine.interpreter.ModelStructureQueryInterpreter;
import tools.descartes.dql.core.engine.interpreter.PerformanceMetricsQueryInterpreter;
import tools.descartes.dql.core.engine.interpreter.QueryInterpreter;
import tools.descartes.dql.core.engine.util.DQLLogger;
import tools.descartes.dql.lang.descartesQL.DescartesQL;
import tools.descartes.dql.lang.descartesQL.ListQuery;
import tools.descartes.dql.lang.descartesQL.ModelStructureQuery;
import tools.descartes.dql.lang.descartesQL.PerformanceIssueQuery;
import tools.descartes.dql.lang.descartesQL.PerformanceMetricsQuery;
import tools.descartes.dql.lang.descartesQL.SelectQuery;
import tools.descartes.dql.lang.descartesQL.UsingClause;
import tools.descartes.dql.models.mapping.mapping.EntityMapping;
import tools.descartes.dql.vizualization.GraphicsEngine;
public class QueryExecutionEngineImpl implements QueryExecutionEngine {
private final Logger log = DQLLogger.getLogger(this.getClass().getName());
private boolean validQuery = false;
private EObject query = null;
private ArrayList<EntityMapping> createEmptyResultList() {
return new ArrayList<EntityMapping>(0);
}
private List<EntityMapping> execute(List<QueryProgressListener> listeners) {
QueryInterpreter interpreter;
validQuery = false;
if (query == null) {
log.error("Query is null, aborting.");
return createEmptyResultList();
}
// Pick the right query interpreter for the incoming query instance
if (query instanceof ModelStructureQuery) {
interpreter = new ModelStructureQueryInterpreter((ModelStructureQuery) query, listeners);
validQuery = interpreter.interpretQuery();
} else if (query instanceof PerformanceMetricsQuery) {
interpreter = new PerformanceMetricsQueryInterpreter((PerformanceMetricsQuery) query, listeners);
validQuery = interpreter.interpretQuery();
new GraphicsEngine("Query Result Visualization", interpreter.getResult());
} else if (query instanceof PerformanceIssueQuery) {
log.error("Performance Issues not yet supported, aborting.");
return createEmptyResultList();
} else {
log.error("No suitable QueryInterpreter found, aborting.");
return createEmptyResultList();
}
// Pass back to GC
query = null;
return interpreter.getResults();
}
@Override
public List<EntityMapping> execute(final DescartesQL query) {
return execute(query, new ArrayList<QueryProgressListener>());
}
@Override
public List<EntityMapping> execute(final Resource model) {
return execute(model, new ArrayList<QueryProgressListener>());
}
@Override
public List<EntityMapping> execute(final String query) {
return execute(query, new ArrayList<QueryProgressListener>());
}
@Override
public List<EntityMapping> execute(final DescartesQL query, List<QueryProgressListener> listeners) {
setModel(query);
return execute(listeners);
}
@Override
public List<EntityMapping> execute(final Resource model, List<QueryProgressListener> listeners) {
setModel(model);
return execute(listeners);
}
@Override
public List<EntityMapping> execute(final String query, List<QueryProgressListener> listeners) {
setModel(query);
return execute(listeners);
}
@Override
public boolean isValidQuery() {
return validQuery;
}
private void setModel(final DescartesQL query) {
this.query = query.getQuery();
}
private void setModel(final Resource model) {
EList<EObject> contents = null;
if (model == null) {
log.error("The model instance is null, aborting.");
return;
}
contents = model.getContents();
if (contents.size() != 1) {
log.error("Invalid model structure, more than one root element");
return;
}
query = ((DescartesQL) contents.get(0)).getQuery();
// relative to absolute paths
UsingClause clause = null;
if (query instanceof ListQuery) {
clause = ((ListQuery) query).getUsingClause();
} else if (query instanceof SelectQuery) {
clause = ((SelectQuery) query).getUsingClause();
}
if (clause != null) {
String location = clause.getModelReference().getModel().getLocation();
if (!new File(location).exists()) {
location = (new File(model.getURI().path())).getParentFile().getAbsolutePath() + File.separator
+ location;
clause.getModelReference().getModel().setLocation(location);
}
}
}
private void setModel(final String query) {
final DescartesQL queryModel = stringToModel(query);
this.query = queryModel.getQuery();
}
}
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