com.twitter.hbc.httpclient.Connection.java Source code

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Here is the source code for com.twitter.hbc.httpclient.Connection.java

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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
        }
    }
}