/*
* Copyright 2012 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.workbench.screens.globals.backend.server.util;
import org.drools.workbench.models.commons.backend.packages.PackageNameParser;
import org.drools.workbench.models.commons.backend.packages.PackageNameWriter;
import org.kie.commons.data.Pair;
import org.kie.workbench.common.services.datamodel.backend.server.builder.util.GlobalsParser;
import org.drools.workbench.screens.globals.model.Global;
import org.drools.workbench.screens.globals.model.GlobalsModel;
import java.util.ArrayList;
import java.util.List;
/**
* This class persists the rule model to DRL and back
*/
public class GlobalsPersistence {
private static final GlobalsPersistence INSTANCE = new GlobalsPersistence();
protected GlobalsPersistence() {
}
public static GlobalsPersistence getInstance() {
return INSTANCE;
}
public String marshal( final GlobalsModel model ) {
final StringBuilder sb = new StringBuilder();
PackageNameWriter.write( sb,
model );
for ( Global global : model.getGlobals() ) {
sb.append( "global " ).append( global.getClassName() ).append( " " ).append( global.getAlias() ).append( ";\n" );
}
return sb.toString();
}
public GlobalsModel unmarshal( final String content ) {
//De-serialize model
final List<Pair<String, String>> parsedGlobalsContent = GlobalsParser.parseGlobals( content );
final List<Global> globals = makeGlobals( parsedGlobalsContent );
final GlobalsModel model = new GlobalsModel();
model.setGlobals( globals );
//De-serialize Package name
final String packageName = PackageNameParser.parsePackageName( content );
model.setPackageName( packageName );
return model;
}
private List<Global> makeGlobals( final List<Pair<String, String>> parsedGlobalsContent ) {
final List<Global> globals = new ArrayList<Global>();
for ( Pair<String, String> p : parsedGlobalsContent ) {
globals.add( new Global( p.getK1(),
p.getK2() ) );
}
return globals;
}
}