org.sylvani.bot.util.HttpUtil.java Source code

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Here is the source code for org.sylvani.bot.util.HttpUtil.java

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/**
 *    Copyright (C) 2016-2017 Harald Kuhn
 *
 *    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.sylvani.bot.util;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.cxf.helpers.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;

/**
 * @author Harald Kuhn
 *
 */
public class HttpUtil {

    public File download(String url) throws IOException {
        HttpClient httpClient = null;
        HttpGet httpget = new HttpGet(url);
        HttpResponse response = httpClient.execute(httpget);
        HttpEntity entity = response.getEntity();
        if (entity != null) {
            long len = entity.getContentLength();
            InputStream inputStream = entity.getContent();
            // How do I write it?
            File tmpFile = File.createTempFile(String.valueOf(url.hashCode()), "tmp");
            try (FileOutputStream oStream = new FileOutputStream(tmpFile)) {
                IOUtils.copy(inputStream, oStream);
            }
            return tmpFile;
        }
        return null;
    }

}