com.canoo.dp.impl.server.servlet.InterruptServlet Maven / Gradle / Ivy

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The Dolphin Platform is a framework that implements the presentation model pattern and provides amodern way to create enterprise applications. The Platform provides several client implementations that all canbe used in combination with a general sever API.

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/*
 * Copyright 2015-2018 Canoo Engineering AG.
 *
 * 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.canoo.dp.impl.server.servlet;

import com.canoo.dp.impl.platform.core.Assert;
import com.canoo.dp.impl.server.context.DolphinContext;
import com.canoo.dp.impl.server.context.DolphinContextProvider;
import org.apiguardian.api.API;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

import static org.apiguardian.api.API.Status.INTERNAL;

@API(since = "0.x", status = INTERNAL)
public class InterruptServlet extends HttpServlet {

    private final DolphinContextProvider dolphinContextProvider;

    public InterruptServlet(final DolphinContextProvider dolphinContextProvider) {
        this.dolphinContextProvider = Assert.requireNonNull(dolphinContextProvider, "dolphinContextProvider");
    }

    @Override
    protected void doPost(final HttpServletRequest req, final HttpServletResponse response) throws ServletException, IOException {
        Assert.requireNonNull(response, "response");
        final DolphinContext currentContext = dolphinContextProvider.getCurrentDolphinContext();
        if(currentContext == null) {
            response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Missing or wrong client session id");
        } else {
            currentContext.interrupt();
        }
    }
}