nl.nn.adapterframework.http.HttpResponseMock.java Source code

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Here is the source code for nl.nn.adapterframework.http.HttpResponseMock.java

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/*
   Copyright 2018 Nationale-Nederlanden
    
   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 nl.nn.adapterframework.http;

import static org.junit.Assert.assertEquals;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

import nl.nn.adapterframework.http.mime.MultipartEntity;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;

public class HttpResponseMock extends Mockito implements Answer<HttpResponse> {

    private HttpResponse buildResponse(InputStream content) throws UnsupportedOperationException, IOException {
        CloseableHttpResponse httpResponse = mock(CloseableHttpResponse.class);
        StatusLine statusLine = mock(StatusLine.class);
        HttpEntity httpEntity = mock(HttpEntity.class);

        when(statusLine.getStatusCode()).thenReturn(200);
        when(httpResponse.getStatusLine()).thenReturn(statusLine);

        when(httpEntity.getContent()).thenReturn(content);
        when(httpResponse.getEntity()).thenReturn(httpEntity);
        return httpResponse;
    }

    @Override
    public HttpResponse answer(InvocationOnMock invocation) throws Throwable {
        HttpHost host = (HttpHost) invocation.getArguments()[0];
        HttpRequestBase request = (HttpRequestBase) invocation.getArguments()[1];
        HttpContext context = (HttpContext) invocation.getArguments()[2];

        InputStream response = null;
        if (request instanceof HttpGet)
            response = doGet(host, (HttpGet) request, context);
        else if (request instanceof HttpPost)
            response = doPost(host, (HttpPost) request, context);
        else
            throw new Exception("method not yet implemented");

        return buildResponse(response);
    }

    public InputStream doGet(HttpHost host, HttpGet request, HttpContext context) {
        assertEquals("GET", request.getMethod());
        StringBuilder response = new StringBuilder();
        String lineSeparator = System.getProperty("line.separator");
        response.append(request.toString() + lineSeparator);

        Header[] headers = request.getAllHeaders();
        for (Header header : headers) {
            response.append(header.getName() + ": " + header.getValue() + lineSeparator);
        }

        return new ByteArrayInputStream(response.toString().getBytes());
    }

    public InputStream doPost(HttpHost host, HttpPost request, HttpContext context) throws IOException {
        assertEquals("POST", request.getMethod());
        StringBuilder response = new StringBuilder();
        String lineSeparator = System.getProperty("line.separator");
        response.append(request.toString() + lineSeparator);

        Header[] headers = request.getAllHeaders();
        for (Header header : headers) {
            response.append(header.getName() + ": " + header.getValue() + lineSeparator);
        }
        HttpEntity entity = request.getEntity();
        if (entity instanceof MultipartEntity) {
            MultipartEntity multipartEntity = (MultipartEntity) entity;
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            multipartEntity.writeTo(baos);
            String contentType = multipartEntity.getContentType().getValue();
            String boundary = getBoundary(contentType);
            contentType = contentType.replaceAll(boundary, "IGNORE");
            response.append("Content-Type: " + contentType + lineSeparator);

            response.append(lineSeparator);
            String content = new String(baos.toByteArray());
            content = content.replaceAll(boundary, "IGNORE");
            response.append(content);
        } else {
            response.append(lineSeparator);
            response.append(EntityUtils.toString(entity));
        }

        return new ByteArrayInputStream(response.toString().getBytes());
    }

    private String getBoundary(String contentType) {
        String boundary = contentType.substring(contentType.indexOf("boundary=") + 9);
        boundary = boundary.substring(0, boundary.indexOf(";"));
        return boundary.replaceAll("\"", "");
    }
}