ProfilingDecorator.java

/*
 * Copyright 2014 the original author or authors.
 *
 * 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 grails.plugin.miniprofiler.sitemesh.grails20;

import com.opensymphony.sitemesh.Content;
import com.opensymphony.sitemesh.SiteMeshContext;
import com.opensymphony.sitemesh.compatability.OldDecorator2NewDecorator;
import io.jdev.miniprofiler.Profiler;
import io.jdev.miniprofiler.Timing;

import java.util.Iterator;

public class ProfilingDecorator implements com.opensymphony.sitemesh.Decorator, com.opensymphony.module.sitemesh.Decorator {

    private final com.opensymphony.module.sitemesh.Decorator oldDecorator;
    private final com.opensymphony.sitemesh.Decorator newDecorator;
    private Profiler profiler;

    // called from contexts that don't expect an old profiler
    public ProfilingDecorator(com.opensymphony.sitemesh.Decorator newDecorator, Profiler profiler) {
        this.oldDecorator = null;
        this.profiler = profiler;
        this.newDecorator = newDecorator;
    }

    public ProfilingDecorator(com.opensymphony.module.sitemesh.Decorator oldDecorator, Profiler profiler) {
        this.oldDecorator = oldDecorator;
        this.profiler = profiler;
        if (oldDecorator instanceof com.opensymphony.sitemesh.Decorator) {
            newDecorator = (com.opensymphony.sitemesh.Decorator) oldDecorator;
        } else {
            newDecorator = new OldDecorator2NewDecorator(oldDecorator);
        }
    }

    public void render(Content content, SiteMeshContext siteMeshContext) {
        Timing timing = profiler.step("Layout");
        try {
            newDecorator.render(content, siteMeshContext);
        } finally {
            timing.stop();
        }
    }

    @Override
    public String getPage() {
        return oldDecorator.getPage();
    }

    @Override
    public String getName() {
        return oldDecorator.getName();
    }

    @Override
    public String getURIPath() {
        return oldDecorator.getURIPath();
    }

    @Override
    public String getRole() {
        return oldDecorator.getRole();
    }

    @Override
    public String getInitParameter(String param) {
        return oldDecorator.getInitParameter(param);
    }

    @Override
    public Iterator getInitParameterNames() {
        return oldDecorator.getInitParameterNames();
    }
}