Package org.drools.command

Source Code of org.drools.command.KnowledgeBaseAddKnowledgePackagesCommand

/*
* 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.command;

import org.drools.command.impl.GenericCommand;
import org.drools.command.impl.KnowledgeCommandContext;
import org.kie.KnowledgeBase;
import org.kie.builder.KnowledgeBuilder;
import org.kie.command.Context;

public class KnowledgeBaseAddKnowledgePackagesCommand
    implements
    GenericCommand<Void> {

    public KnowledgeBaseAddKnowledgePackagesCommand() {
    }

    public Void execute(Context context) {
        KnowledgeBuilder kbuilder = ((KnowledgeCommandContext) context).getKnowledgeBuilder();
        if (kbuilder.hasErrors()) {
            throw new IllegalStateException("There are rule compilation errors:\n" + kbuilder.getErrors().toString());
        }
        KnowledgeBase kbase = ((KnowledgeCommandContext) context).getKnowledgeBase();
        kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
        return null;
    }

}
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