org.drools.planner.benchmark.config.XmlPlannerBenchmarkFactory Maven / Gradle / Ivy
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Drools Planner optimizes automated planning by combining metaheuristic search algorithms with rule
engine powered score calculation. This is the drools-planner-core module which contains metaheuristic
algorithms.
/*
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.planner.benchmark.config;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import com.thoughtworks.xstream.XStream;
import org.apache.commons.io.IOUtils;
import org.drools.planner.benchmark.api.PlannerBenchmark;
import org.drools.planner.config.XmlSolverFactory;
public class XmlPlannerBenchmarkFactory {
private XStream xStream;
private PlannerBenchmarkConfig plannerBenchmarkConfig = null;
public XmlPlannerBenchmarkFactory() {
xStream = XmlSolverFactory.buildXstream();
xStream.processAnnotations(PlannerBenchmarkConfig.class);
}
public void addXstreamAnnotations(Class... xstreamAnnotations) {
xStream.processAnnotations(xstreamAnnotations);
}
// ************************************************************************
// Worker methods
// ************************************************************************
public XmlPlannerBenchmarkFactory configure(String resource) {
InputStream in = getClass().getResourceAsStream(resource);
if (in == null) {
throw new IllegalArgumentException("Resource not found: " + resource);
}
return configure(in);
}
public XmlPlannerBenchmarkFactory configure(InputStream in) {
Reader reader = null;
try {
reader = new InputStreamReader(in, "UTF-8");
return configure(reader);
} catch (UnsupportedEncodingException e) {
throw new IllegalStateException("This vm does not support UTF-8 encoding.", e);
} finally {
IOUtils.closeQuietly(reader);
IOUtils.closeQuietly(in);
}
}
public XmlPlannerBenchmarkFactory configure(Reader reader) {
plannerBenchmarkConfig = (PlannerBenchmarkConfig) xStream.fromXML(reader);
return this;
}
public PlannerBenchmarkConfig getPlannerBenchmarkConfig() {
if (plannerBenchmarkConfig == null) {
throw new IllegalStateException("The plannerBenchmarkConfig (" + plannerBenchmarkConfig + ") is null," +
" call configure(...) first.");
}
return plannerBenchmarkConfig;
}
public PlannerBenchmark buildPlannerBenchmark() {
if (plannerBenchmarkConfig == null) {
throw new IllegalStateException("The plannerBenchmarkConfig (" + plannerBenchmarkConfig + ") is null," +
" call configure(...) first.");
}
return plannerBenchmarkConfig.buildPlannerBenchmark();
}
}