org.cee.net.impl.DefaultWebClient.java Source code

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Here is the source code for org.cee.net.impl.DefaultWebClient.java

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package org.cee.net.impl;

/*
 * #%L
 * Content Extraction Engine - News Parser Implementations
 * %%
 * Copyright (C) 2013 Andreas Behnke
 * %%
 * 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.
 * #L%
 */

import java.net.URL;

import org.apache.http.client.HttpClient;
import org.cee.net.WebClient;
import org.cee.net.WebResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Default {@link WebClient} implementation uses the {@link HttpClient} for HTTP
 * connections and falls back to the java.net API for all other protocols.
 */
public class DefaultWebClient implements WebClient {

    private static final Logger LOG = LoggerFactory.getLogger(DefaultWebClient.class);

    private static final String HTTP_PROTOCOL = "http";

    private static final String HTTPS_PROTOCOL = "https";

    private HttpClient httpClient;

    private ReaderFactory readerFactory;

    public DefaultWebClient() {
    }

    public DefaultWebClient(HttpClientFactory httpClientFactory, ReaderFactory readerFactory) {
        this.readerFactory = readerFactory;
        setHttpClientFactory(httpClientFactory);
    }

    public void setHttpClientFactory(HttpClientFactory httpClientFactory) {
        this.httpClient = httpClientFactory.createHttpClient();
    }

    public ReaderFactory getReaderFactory() {
        return readerFactory;
    }

    public void setReaderFactory(ReaderFactory readerFactory) {
        this.readerFactory = readerFactory;
    }

    @Override
    public WebResponse openWebResponse(final URL location, boolean bufferStream) {
        if (readerFactory == null) {
            throw new IllegalArgumentException("The property readerFactory has not been set yet!");
        }
        String protocol = location.getProtocol();
        if (protocol.equalsIgnoreCase(HTTP_PROTOCOL) || protocol.equalsIgnoreCase(HTTPS_PROTOCOL)) {
            LOG.debug("open http response for {}", location);
            if (httpClient == null) {
                throw new IllegalArgumentException("The property httpClient has not been set yet!");
            }
            return new HttpWebResponse(location, httpClient, readerFactory, bufferStream);
        } else {
            LOG.debug("open standard response for {}", location);
            return new DefaultWebResponse(location, readerFactory, bufferStream);
        }
    }
}