/**
* Copyright 2012-2020 The Feign 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 feign;
import static feign.Util.*;
import java.io.*;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.*;
/**
* An immutable response to an http invocation which only returns string content.
*/
public final class Response implements Closeable {
private final int status;
private final String reason;
private final Map
*
*
* Note
* This is an integer as most implementations cannot do bodies greater than 2GB.
*/
Integer length();
/**
* True if {@link #asInputStream()} and {@link #asReader()} can be called more than once.
*/
boolean isRepeatable();
/**
* It is the responsibility of the caller to close the stream.
*/
InputStream asInputStream() throws IOException;
/**
* It is the responsibility of the caller to close the stream.
*/
Reader asReader(Charset charset) throws IOException;
}
private static final class InputStreamBody implements Response.Body {
private final InputStream inputStream;
private final Integer length;
private InputStreamBody(InputStream inputStream, Integer length) {
this.inputStream = inputStream;
this.length = length;
}
private static Body orNull(InputStream inputStream, Integer length) {
if (inputStream == null) {
return null;
}
return new InputStreamBody(inputStream, length);
}
@Override
public Integer length() {
return length;
}
@Override
public boolean isRepeatable() {
return false;
}
@Override
public InputStream asInputStream() {
return inputStream;
}
@Override
public Reader asReader(Charset charset) throws IOException {
checkNotNull(charset, "charset should not be null");
return new InputStreamReader(inputStream, charset);
}
@Override
public void close() throws IOException {
inputStream.close();
}
@Override
public String toString() {
try {
return new String(toByteArray(inputStream), UTF_8);
} catch (Exception e) {
return super.toString();
}
}
}
private static final class ByteArrayBody implements Response.Body {
private final byte[] data;
public ByteArrayBody(byte[] data) {
this.data = data;
}
private static Body orNull(byte[] data) {
if (data == null) {
return null;
}
return new ByteArrayBody(data);
}
private static Body orNull(String text, Charset charset) {
if (text == null) {
return null;
}
checkNotNull(charset, "charset");
return new ByteArrayBody(text.getBytes(charset));
}
@Override
public Integer length() {
return data.length;
}
@Override
public boolean isRepeatable() {
return true;
}
@Override
public InputStream asInputStream() throws IOException {
return new ByteArrayInputStream(data);
}
@Override
public Reader asReader(Charset charset) throws IOException {
checkNotNull(charset, "charset should not be null");
return new InputStreamReader(asInputStream(), charset);
}
@Override
public void close() throws IOException {}
@Override
public String toString() {
return decodeOrDefault(data, UTF_8, "Binary data");
}
}
private static Map