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    • org.drools.grid.remote.command.QueryRemoteCommand Maven / Gradle / Ivy

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    /*
 * 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.grid.remote.command;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;

import org.drools.command.Context;
import org.drools.grid.remote.command.QueryResultsDescriptor;
import org.drools.command.World;
import org.drools.command.impl.GenericCommand;
import org.drools.command.impl.KnowledgeCommandContext;
import org.drools.impl.StatefulKnowledgeSessionImpl;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.runtime.impl.ExecutionResultImpl;
import org.drools.runtime.rule.QueryResults;
import org.drools.runtime.rule.Variable;
import org.drools.runtime.rule.impl.NativeQueryResults;

@XmlAccessorType(XmlAccessType.NONE)
public class QueryRemoteCommand implements GenericCommand {

    private static final long serialVersionUID = 510l;
    @XmlAttribute(name = "out-identifier")
    private String outIdentifier;
    @XmlAttribute(required = true)
    private String name;
    @XmlElement
    private List arguments;
    @XmlAttribute(required = true)
    private boolean disconnected = false;

    public QueryRemoteCommand() {
    }

    public QueryRemoteCommand(String outIdentifier, String name, boolean disconnected, Object... arguments) {
        this.outIdentifier = outIdentifier;
        this.name = name;
        this.disconnected = disconnected;
        if (arguments != null) {
            this.arguments = Arrays.asList(arguments);
        } else {
            this.arguments = Collections.EMPTY_LIST;
        }
    }

    public QueryRemoteCommand(String outIdentifier, String name, Object... arguments) {
        this(outIdentifier, name, false, arguments);
    }

    public String getOutIdentifier() {
        return outIdentifier;
    }

    public void setOutIdentifier(String outIdentifier) {
        this.outIdentifier = outIdentifier;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public List getArguments() {
        if (this.arguments == null) {
            this.arguments = Collections.emptyList();
        }
        return this.arguments;
    }

    public void setArguments(List arguments) {
        if (arguments == null || arguments.isEmpty()) {
            this.arguments = Collections.emptyList();
        }
        this.arguments = arguments;
    }

    public QueryResults execute( Context context ) {
        StatefulKnowledgeSession ksession = ((KnowledgeCommandContext) context).getStatefulKnowledgesession();

        if (this.arguments == null || this.arguments.isEmpty()) {
            this.arguments = Collections.emptyList();
        }

        for (int j = 0; j < arguments.size(); j++) {
            if (arguments.get(j) instanceof Variable) {
                arguments.set(j, Variable.v);
            }
        }

        QueryResults results = ksession.getQueryResults(name, this.arguments.toArray());

        if (this.outIdentifier != null) {
            
            if (((StatefulKnowledgeSessionImpl) ksession).session.getExecutionResult() != null && !this.disconnected) {
                ((StatefulKnowledgeSessionImpl) ksession).session.getExecutionResult().getResults().put(this.outIdentifier, results);
            }
            if (((StatefulKnowledgeSessionImpl) ksession).session.getExecutionResult() != null && this.disconnected) {
                QueryResultsDescriptor disconnectedResults = new QueryResultsDescriptor(this.name, this.outIdentifier, results.size());
                ((StatefulKnowledgeSessionImpl) ksession).session.getExecutionResult().getResults().put(this.outIdentifier, disconnectedResults);
                context.getContextManager().getContext( "__TEMP__" ).set( this.outIdentifier, results );
                return disconnectedResults;
            }
        }

        return results;
    }

    @Override
    public String toString() {
        return "QueryRemoteCommand{" + "outIdentifier=" + outIdentifier + ", name=" + name + ", arguments=" + arguments + ", disconnected=" + disconnected + '}';
    }
}
    
    
    
    

    




    
    
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