/**
 * 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.container.spring.beans;

import java.util.List;
import java.util.Map;

import org.drools.KnowledgeBase;
import org.drools.command.Command;
import org.drools.grid.GridNode;
import org.drools.runtime.CommandExecutor;
import org.drools.runtime.KnowledgeSessionConfiguration;
import org.drools.runtime.process.WorkItemHandler;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.NamedBean;

public abstract class AbstractKnowledgeSessionBeanFactory
    implements
    FactoryBean,
    InitializingBean,
    BeanNameAware,
    NamedBean {

    private GridNode                      node;
    private Map<String, WorkItemHandler>  workItems;
    private KnowledgeSessionConfiguration conf;
    private KnowledgeBase                 kbase;
    private String                        beanName;
    private String                        name;

    private List<Command< ? >>            batch;

    public AbstractKnowledgeSessionBeanFactory() {
        super();
    }

    public Object getObject() throws Exception {
        return getCommandExecutor();
    }

    public Map<String, WorkItemHandler> getWorkItems() {
        return workItems;
    }

    public void setWorkItems(Map<String, WorkItemHandler> workItems) {
        this.workItems = workItems;
    }

    public KnowledgeSessionConfiguration getConf() {
        return conf;
    }

    public void setConf(KnowledgeSessionConfiguration conf) {
        this.conf = conf;
    }

    public String getName() {
        return name;
    }

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

    public KnowledgeBase getKbase() {
        return kbase;
    }

    public void setKbase(KnowledgeBase kbase) {
        this.kbase = kbase;
    }

    public boolean isSingleton() {
        return true;
    }

    public List<Command< ? >> getBatch() {
        return batch;
    }

    public void setBatch(List<Command< ? >> commands) {
        this.batch = commands;
    }

    public final void afterPropertiesSet() throws Exception {
        if ( kbase == null ) {
            throw new IllegalArgumentException( "kbase property is mandatory" );
        }
        if ( name == null ) {
            name = beanName;
        }
        internalAfterPropertiesSet();
    }

    protected abstract CommandExecutor getCommandExecutor();

    protected abstract void internalAfterPropertiesSet();

    public GridNode getNode() {
        return node;
    }

    public void setNode(GridNode node) {
        this.node = node;
    }

    public void setBeanName(String name) {
        this.beanName = name;

    }

    public String getBeanName() {
        return beanName;
    }

}