com.metawiring.load.activity.dispensers.DirectImplActivityDispenser.java Source code

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Here is the source code for com.metawiring.load.activity.dispensers.DirectImplActivityDispenser.java

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/*
 *
 *       Copyright 2015 Jonathan Shook
 *
 *   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 com.metawiring.load.activity.dispensers;

import com.metawiring.load.activity.Activity;
import com.metawiring.load.activity.ActivityDispenser;
import org.apache.commons.lang3.reflect.ConstructorUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DirectImplActivityDispenser implements ActivityDispenser {
    private final static Logger logger = LoggerFactory.getLogger(DirectImplActivityDispenser.class);

    private Class<? extends Activity> activityClass;
    private String activityName;

    public DirectImplActivityDispenser(String activityName, Class<? extends Activity> activityClass) {
        this.activityClass = activityClass;
        this.activityName = activityName;
    }

    @SuppressWarnings("unchecked")
    public DirectImplActivityDispenser(String activityClassName, String activityName) {
        try {
            this.activityClass = (Class<? extends Activity>) Class.forName(activityClassName);
            this.activityName = activityName;
        } catch (ClassNotFoundException e) {
            logger.error("Unable to find class " + activityClassName + ": " + e.getMessage());
            throw new RuntimeException(e);
        }
    }

    @Override
    public Activity getNewInstance() {
        Activity activity;
        try {
            activity = (Activity) ConstructorUtils.invokeConstructor(activityClass, new Object[] {});
        } catch (Exception e) {
            logger.error("Error instantiating " + activityClass.getCanonicalName() + ": " + e.getMessage());
            throw new RuntimeException(e);
        }
        return activity;
    }

    @Override
    public String getName() {
        return getClass().getSimpleName() + " activityClass:" + activityClass.getCanonicalName();
    }

    @Override
    public String getActivityName() {
        return activityName;
    }

    public String toString() {
        return getClass().getCanonicalName() + " activityClass:" + activityClass.getCanonicalName();
    }
}