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Netty based path router

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/*
 * Copyright © 2014 Cask Data, 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 co.cask.http;

import org.jboss.netty.handler.codec.http.HttpRequest;
import org.jboss.netty.handler.codec.http.HttpResponseStatus;

/**
 * A base implementation of {@link HandlerHook} that provides no-op for both
 * {@link HandlerHook#preCall(org.jboss.netty.handler.codec.http.HttpRequest, HttpResponder, HandlerInfo)}
 * and {@link HandlerHook#postCall(org.jboss.netty.handler.codec.http.HttpRequest,
 * org.jboss.netty.handler.codec.http.HttpResponseStatus, HandlerInfo)} methods.
 */
public abstract class AbstractHandlerHook implements HandlerHook {
  @Override
  public boolean preCall(HttpRequest request, HttpResponder responder, HandlerInfo handlerInfo) {
    return true;
  }

  @Override
  public void postCall(HttpRequest request, HttpResponseStatus status, HandlerInfo handlerInfo) {
    // no-op
  }
}