org.springframework.boot.testsupport.web.servlet.ExampleServlet.java Source code

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Here is the source code for org.springframework.boot.testsupport.web.servlet.ExampleServlet.java

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/*
 * Copyright 2012-2019 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
 *
 *      https://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 org.springframework.boot.testsupport.web.servlet;

import java.io.IOException;

import javax.servlet.GenericServlet;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.springframework.util.StreamUtils;

/**
 * Simple example Servlet used for testing.
 *
 * @author Phillip Webb
 * @since 2.0.0
 */
@SuppressWarnings("serial")
public class ExampleServlet extends GenericServlet {

    private final boolean echoRequestInfo;

    private final boolean writeWithoutContentLength;

    public ExampleServlet() {
        this(false, false);
    }

    public ExampleServlet(boolean echoRequestInfo, boolean writeWithoutContentLength) {
        this.echoRequestInfo = echoRequestInfo;
        this.writeWithoutContentLength = writeWithoutContentLength;
    }

    @Override
    public void service(ServletRequest request, ServletResponse response) throws ServletException, IOException {
        String content = "Hello World";
        if (this.echoRequestInfo) {
            content += " scheme=" + request.getScheme();
            content += " remoteaddr=" + request.getRemoteAddr();
        }
        if (this.writeWithoutContentLength) {
            response.setContentType("text/plain");
            ServletOutputStream outputStream = response.getOutputStream();
            StreamUtils.copy(content.getBytes(), outputStream);
            outputStream.flush();
        } else {
            response.getWriter().write(content);
        }
    }

}