BlockingInputStreamServlet.java

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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 io.undertow.servlet.test.streams;

import java.io.ByteArrayOutputStream;
import java.io.IOException;

import jakarta.servlet.ServletException;
import jakarta.servlet.ServletInputStream;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**
 * @author Stuart Douglas
 */
public class BlockingInputStreamServlet extends HttpServlet {


    @Override
    protected void doPost(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
        final ByteArrayOutputStream out = new ByteArrayOutputStream();
        final ServletInputStream inputStream = req.getInputStream();
        byte[] buf = new byte[1024];
        int read;
        while ((read = inputStream.read(buf)) != -1) {
            out.write(buf, 0, read);
        }
        resp.getOutputStream().write(out.toByteArray());
    }
}