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/*
 * Copyright 2006-2012 The Scriptella Project Team.
 *
 * 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 scriptella.core;

import scriptella.configuration.Location;
import scriptella.execution.ExecutionStatisticsBuilder;


/**
 * Collects execution statistics.
 *
 * @author Fyodor Kupolov
 * @version 1.0
 */
public final class StatisticInterceptor extends ElementInterceptor {
    private Location location;

    public StatisticInterceptor(ExecutableElement next, Location location) {
        super(next);
        this.location = location;
    }

    public void execute(final DynamicContext ctx) {
        boolean ok = false;
        final ExecutionStatisticsBuilder statisticsBuilder = ctx.getGlobalContext().getStatisticsBuilder();
        statisticsBuilder.elementStarted(location, ctx.getConnection());
        try {
            executeNext(ctx);
            ok = true;
        } finally {
            if (ok) {
                statisticsBuilder.elementExecuted();
            } else {
                statisticsBuilder.elementFailed();
            }
        }

    }

    public static ExecutableElement prepare(
            final ExecutableElement next, final Location location) {
        return new StatisticInterceptor(next, location);
    }


}