/*
* Copyright 2012 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.gradle.internal.resource.transport.http;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.gradle.api.Nullable;
import org.gradle.internal.IoActions;
import org.gradle.internal.resource.metadata.ExternalResourceMetaData;
import org.gradle.internal.resource.transfer.ExternalResourceAccessor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.net.URI;
public class HttpResourceAccessor implements ExternalResourceAccessor {
private static final Logger LOGGER = LoggerFactory.getLogger(HttpResourceAccessor.class);
private final HttpClientHelper http;
public HttpResourceAccessor(HttpClientHelper http) {
this.http = http;
}
@Nullable
public HttpResponseResource openResource(final URI uri, boolean revalidate) {
String location = uri.toString();
LOGGER.debug("Constructing external resource: {}", location);
CloseableHttpResponse response = http.performGet(location, revalidate);
if (response != null) {
return wrapResponse(uri, response);
}
return null;
}
/**
* Same as #getResource except that it always gives access to the response body,
* irrespective of the returned HTTP status code. Never returns {@code null}.
*/
public HttpResponseResource getRawResource(final URI uri, boolean revalidate) {
String location = uri.toString();
LOGGER.debug("Constructing external resource: {}", location);
CloseableHttpResponse response = http.performRawGet(location, revalidate);
return wrapResponse(uri, response);
}
public ExternalResourceMetaData getMetaData(URI uri, boolean revalidate) {
String location = uri.toString();
LOGGER.debug("Constructing external resource metadata: {}", location);
CloseableHttpResponse response = http.performHead(location, revalidate);
ExternalResourceMetaData result = null;
if (response != null) {
HttpResponseResource resource = new HttpResponseResource("HEAD", uri, response);
try {
result = resource.getMetaData();
} finally {
IoActions.closeQuietly(resource);
}
}
return result;
}
private HttpResponseResource wrapResponse(URI uri, CloseableHttpResponse response) {
return new HttpResponseResource("GET", uri, response);
}
}