com.twitter.hbc.httpclient.Connection Maven / Gradle / Ivy
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/**
* Copyright 2013 Twitter, 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.twitter.hbc.httpclient;
import com.google.common.base.Preconditions;
import com.google.common.io.Closeables;
import com.twitter.hbc.core.processor.HosebirdMessageProcessor;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpUriRequest;
import java.io.IOException;
import java.io.InputStream;
public class Connection {
private final HttpClient client;
private HttpResponse response;
private HttpUriRequest request;
private InputStream stream;
private final HosebirdMessageProcessor processor;
public Connection(HttpClient client, HosebirdMessageProcessor processor) {
this.client = Preconditions.checkNotNull(client);
this.processor = Preconditions.checkNotNull(processor);
}
public StatusLine connect(HttpUriRequest request) throws IOException {
this.request = request;
this.response = client.execute(request);
this.stream = response.getEntity().getContent();
processor.setup(stream);
return response.getStatusLine();
}
public boolean processResponse() throws IOException, InterruptedException {
return processor.process();
}
public void close() {
if (this.request != null && !this.request.isAborted()) {
// aborting the request
this.request.abort();
}
if (client instanceof RestartableHttpClient) {
// restart the entire client
((RestartableHttpClient) client).restart();
}
try {
Closeables.close(this.stream, true);
} catch (IOException e) {
throw new RuntimeException(e); // should never happen
}
}
}