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/*
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 *
 * 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.core.command.runtime.rule;

import org.drools.core.command.IdentifiableResult;
import org.drools.core.command.impl.ExecutableCommand;
import org.drools.core.command.impl.RegistryContext;
import org.drools.core.runtime.impl.ExecutionResultImpl;
import org.drools.core.util.StringUtils;
import org.drools.core.xml.jaxb.util.JaxbListAdapter;
import org.kie.api.runtime.KieSession;
import org.kie.api.runtime.rule.EntryPoint;
import org.kie.api.runtime.rule.FactHandle;
import org.kie.api.runtime.Context;

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 javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

@XmlAccessorType( XmlAccessType.NONE )
public class InsertElementsCommand
    implements
    ExecutableCommand>, IdentifiableResult {

    private static final long serialVersionUID = 510l;

    @XmlJavaTypeAdapter(JaxbListAdapter.class)
    @XmlElement(name="list")
    public Collection objects;

    @XmlAttribute
    private String  outIdentifier;

    @XmlAttribute(name="return-objects")
    private boolean returnObject = true;
    
    @XmlAttribute(name="entry-point")
    private String entryPoint = "DEFAULT";

    public InsertElementsCommand() {
        this.objects = new ArrayList();
    }

    public InsertElementsCommand(Collection objects) {
        this.objects = objects;
    }

    public InsertElementsCommand(String outIdentifier) {
        this();
        this.outIdentifier = outIdentifier;
    }

    public Collection getObjects() {
        return this.objects;
    }

    public void setObjects(Collection objects) {
        this.objects = objects;
    }

    public Collection execute(Context context) {
        KieSession ksession = ((RegistryContext) context).lookup( KieSession.class );
        List handles = new ArrayList();
        
        EntryPoint wmep;
        if ( StringUtils.isEmpty( this.entryPoint ) ) {
            wmep = ksession;
        } else {
            wmep = ksession.getEntryPoint( this.entryPoint );
        }

        for ( Object object : objects ) {
            handles.add( wmep.insert( object ) );
        }

        if ( outIdentifier != null ) {
            if ( this.returnObject ) {
                ((RegistryContext) context).lookup( ExecutionResultImpl.class ).setResult( this.outIdentifier, objects );
            }
            ((RegistryContext) context).lookup( ExecutionResultImpl.class ).getFactHandles().put( this.outIdentifier, handles );
        }
        return handles;
    }

    public String getOutIdentifier() {
        return this.outIdentifier;
    }

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

    public boolean isReturnObject() {
        return returnObject;
    }

    public void setReturnObject(boolean returnObject) {
        this.returnObject = returnObject;
    }

    public String getEntryPoint() {
        return entryPoint;
    }

    public void setEntryPoint(String entryPoint) {
    	if (entryPoint == null) {
    		entryPoint = "DEFAULT";
    	}
        this.entryPoint = entryPoint;
    }

    public String toString() {
        List list = new ArrayList();
        for ( Object object : objects ) {
            list.add( object );
        }
        return "insert " + list;
    }

}
 















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