/*
* Copyright 2002-2017 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
*
* 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 org.springframework.http.converter;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.springframework.core.io.ByteArrayResource;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.InputStreamResource;
import org.springframework.core.io.Resource;
import org.springframework.http.ContentDisposition;
import org.springframework.http.MediaType;
import org.springframework.http.MockHttpInputMessage;
import org.springframework.http.MockHttpOutputMessage;
import org.springframework.util.FileCopyUtils;
import static org.hamcrest.core.Is.*;
import static org.hamcrest.core.IsInstanceOf.*;
import static org.junit.Assert.*;
import static org.mockito.BDDMockito.any;
import static org.mockito.BDDMockito.*;
/**
* @author Arjen Poutsma
* @author Kazuki Shimizu
* @author Brian Clozel
*/
public class ResourceHttpMessageConverterTests {
private final ResourceHttpMessageConverter converter = new ResourceHttpMessageConverter();
@Rule
public ExpectedException thrown = ExpectedException.none();
@Test
public void canReadResource() {
assertTrue(converter.canRead(Resource.class, new MediaType("application", "octet-stream")));
}
@Test
public void canWriteResource() {
assertTrue(converter.canWrite(Resource.class, new MediaType("application", "octet-stream")));
assertTrue(converter.canWrite(Resource.class, MediaType.ALL));
}
@Test
public void shouldReadImageResource() throws IOException {
byte[] body = FileCopyUtils.copyToByteArray(getClass().getResourceAsStream("logo.jpg"));
MockHttpInputMessage inputMessage = new MockHttpInputMessage(body);
inputMessage.getHeaders().setContentType(MediaType.IMAGE_JPEG);
inputMessage.getHeaders().setContentDisposition(
ContentDisposition.builder("attachment").filename("yourlogo.jpg").build());
Resource actualResource = converter.read(Resource.class, inputMessage);
assertThat(FileCopyUtils.copyToByteArray(actualResource.getInputStream()), is(body));
assertEquals("yourlogo.jpg", actualResource.getFilename());
}
@Test // SPR-13443
public void shouldReadInputStreamResource() throws IOException {
try (InputStream body = getClass().getResourceAsStream("logo.jpg") ) {
MockHttpInputMessage inputMessage = new MockHttpInputMessage(body);
inputMessage.getHeaders().setContentType(MediaType.IMAGE_JPEG);
inputMessage.getHeaders().setContentDisposition(
ContentDisposition.builder("attachment").filename("yourlogo.jpg").build());
Resource actualResource = converter.read(InputStreamResource.class, inputMessage);
assertThat(actualResource, instanceOf(InputStreamResource.class));
assertThat(actualResource.getInputStream(), is(body));
assertEquals("yourlogo.jpg", actualResource.getFilename());
}
}
@Test // SPR-14882
public void shouldNotReadInputStreamResource() throws IOException {
ResourceHttpMessageConverter noStreamConverter = new ResourceHttpMessageConverter(false);
try (InputStream body = getClass().getResourceAsStream("logo.jpg") ) {
this.thrown.expect(IllegalStateException.class);
MockHttpInputMessage inputMessage = new MockHttpInputMessage(body);
inputMessage.getHeaders().setContentType(MediaType.IMAGE_JPEG);
noStreamConverter.read(InputStreamResource.class, inputMessage);
}
}
@Test
public void shouldWriteImageResource() throws IOException {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
Resource body = new ClassPathResource("logo.jpg", getClass());
converter.write(body, null, outputMessage);
assertEquals("Invalid content-type", MediaType.IMAGE_JPEG,
outputMessage.getHeaders().getContentType());
assertEquals("Invalid content-length", body.getFile().length(), outputMessage.getHeaders().getContentLength());
}
@Test // SPR-10848
public void writeByteArrayNullMediaType() throws IOException {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
byte[] byteArray = {1, 2, 3};
Resource body = new ByteArrayResource(byteArray);
converter.write(body, null, outputMessage);
assertTrue(Arrays.equals(byteArray, outputMessage.getBodyAsBytes()));
}
@Test // SPR-12999
@SuppressWarnings("unchecked")
public void writeContentNotGettingInputStream() throws Exception {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
Resource resource = mock(Resource.class);
given(resource.getInputStream()).willThrow(FileNotFoundException.class);
converter.write(resource, MediaType.APPLICATION_OCTET_STREAM, outputMessage);
assertEquals(0, outputMessage.getHeaders().getContentLength());
}
@Test // SPR-12999
public void writeContentNotClosingInputStream() throws Exception {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
Resource resource = mock(Resource.class);
InputStream inputStream = mock(InputStream.class);
given(resource.getInputStream()).willReturn(inputStream);
given(inputStream.read(any())).willReturn(-1);
doThrow(new NullPointerException()).when(inputStream).close();
converter.write(resource, MediaType.APPLICATION_OCTET_STREAM, outputMessage);
assertEquals(0, outputMessage.getHeaders().getContentLength());
}
@Test // SPR-13620
@SuppressWarnings("unchecked")
public void writeContentInputStreamThrowingNullPointerException() throws Exception {
MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
Resource resource = mock(Resource.class);
InputStream in = mock(InputStream.class);
given(resource.getInputStream()).willReturn(in);
given(in.read(any())).willThrow(NullPointerException.class);
converter.write(resource, MediaType.APPLICATION_OCTET_STREAM, outputMessage);
assertEquals(0, outputMessage.getHeaders().getContentLength());
}
}