    001// Copyright 2030 The Apache Software Foundation
    002//
    003// Licensed under the Apache License, Version 2.0 (the "License");
    004// you may not use this file except in compliance with the License.
    005// You may obtain a copy of the License at
    006//
    007// http://www.apache.org/licenses/LICENSE-2.0
    008//
    009// Unless required by applicable law or agreed to in writing, software
    010// distributed under the License is distributed on an "AS IS" BASIS,
    011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012// See the License for the specific language governing permissions and
    013// limitations under the License.
    014
    015package org.apache.tapestry5.internal.services;
    016
    017import org.apache.tapestry5.ComponentResources;
    018import org.apache.tapestry5.EventContext;
    019import org.apache.tapestry5.ioc.annotations.Primary;
    020import org.apache.tapestry5.services.ComponentEventResultProcessor;
    021import org.apache.tapestry5.services.HttpError;
    022import org.apache.tapestry5.services.Traditional;
    023import org.slf4j.Logger;
    024
    025import javax.servlet.http.HttpServletResponse;
    026import java.io.IOException;
    027
    028/**
    029 * Default implementation for {@link UnknownActivationContextHandler} which answer with a 404 NOT FOUND error.
    030 */
    031public class UnknownActivationContextHandlerImpl implements UnknownActivationContextHandler
    032{
    033    private final Logger logger;
    034
    035    private final ComponentEventResultProcessor resultProcessor;
    036
    037
    038    public UnknownActivationContextHandlerImpl(Logger logger,
    039                                               @Traditional @Primary
    040                                               ComponentEventResultProcessor resultProcessor)
    041    {
    042        this.logger = logger;
    043        this.resultProcessor = resultProcessor;
    044    }
    045
    046    public void handleUnknownContext(ComponentResources pageResources, EventContext activationContext)
    047            throws IOException
    048    {
    049        logger.warn("Activate event on page {} was fired with context {} but was not handled",
    050                pageResources.getPage().getClass(), activationContext);
    051
    052        String message = String.format("Activation context %s unrecognized for page %s",
    053                activationContext, pageResources.getPage().getClass());
    054
    055        resultProcessor.processResultValue(new HttpError(HttpServletResponse.SC_NOT_FOUND, message));
    056    }
    057}