/*
* Copyright 2010 Proofpoint, 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 com.facebook.presto.jdbc.internal.airlift.http.client;
import com.facebook.presto.jdbc.internal.guava.base.Charsets;
import com.facebook.presto.jdbc.internal.guava.base.Throwables;
import com.facebook.presto.jdbc.internal.guava.collect.ImmutableListMultimap;
import com.facebook.presto.jdbc.internal.guava.collect.ListMultimap;
import com.facebook.presto.jdbc.internal.guava.io.ByteStreams;
import com.facebook.presto.jdbc.internal.guava.net.MediaType;
import com.facebook.presto.jdbc.internal.airlift.http.client.StringResponseHandler.StringResponse;
import java.io.IOException;
import java.util.List;
import static com.facebook.presto.jdbc.internal.guava.net.HttpHeaders.CONTENT_TYPE;
import static com.facebook.presto.jdbc.internal.airlift.http.client.ResponseHandlerUtils.propagate;
public class StringResponseHandler implements ResponseHandler<StringResponse, RuntimeException>
{
private static final StringResponseHandler STRING_RESPONSE_HANDLER = new StringResponseHandler();
public static StringResponseHandler createStringResponseHandler()
{
return STRING_RESPONSE_HANDLER;
}
private StringResponseHandler()
{
}
@Override
public StringResponse handleException(Request request, Exception exception)
{
throw propagate(request, exception);
}
@Override
public StringResponse handle(Request request, Response response)
{
try {
String contentType = response.getHeader(CONTENT_TYPE);
if (contentType != null) {
MediaType mediaType = MediaType.parse(contentType);
return new StringResponse(
response.getStatusCode(),
response.getStatusMessage(),
response.getHeaders(),
new String(ByteStreams.toByteArray(response.getInputStream()), mediaType.charset().or(Charsets.UTF_8)));
}
return new StringResponse(
response.getStatusCode(),
response.getStatusMessage(),
response.getHeaders(),
new String(ByteStreams.toByteArray(response.getInputStream()), Charsets.UTF_8));
}
catch (IOException e) {
throw Throwables.propagate(e);
}
}
public static class StringResponse
{
private final int statusCode;
private final String statusMessage;
private final ListMultimap<String, String> headers;
private final String body;
public StringResponse(int statusCode, String statusMessage, ListMultimap<String, String> headers, String body)
{
this.statusCode = statusCode;
this.statusMessage = statusMessage;
this.headers = ImmutableListMultimap.copyOf(headers);
this.body = body;
}
public int getStatusCode()
{
return statusCode;
}
public String getStatusMessage()
{
return statusMessage;
}
public String getBody()
{
return body;
}
public String getHeader(String name)
{
List<String> values = getHeaders().get(name);
if (values.isEmpty()) {
return null;
}
return values.get(0);
}
public ListMultimap<String, String> getHeaders()
{
return headers;
}
}
}