/*
* Copyright 2013 Netflix, Inc.
*
* 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 java.io.ByteArrayInputStream;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.Charset;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.Locale;
import java.util.Map;
import java.util.TreeMap;
import static feign.Util.UTF_8;
import static feign.Util.checkNotNull;
import static feign.Util.checkState;
import static feign.Util.decodeOrDefault;
import static feign.Util.valuesOrEmpty;
/**
* 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() 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() throws IOException {
return inputStream;
}
@Override
public Reader asReader() throws IOException {
return new InputStreamReader(inputStream, UTF_8);
}
@Override
public void close() throws IOException {
inputStream.close();
}
}
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() throws IOException {
return new InputStreamReader(asInputStream(), UTF_8);
}
@Override
public void close() throws IOException {
}
@Override
public String toString() {
return decodeOrDefault(data, UTF_8, "Binary data");
}
}
private static Map