org.npr.api.HttpHelper.java Source code

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Here is the source code for org.npr.api.HttpHelper.java

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// Copyright 2009 Google Inc.
// Copyright 2011 NPR
//
// 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.npr.api;

import android.util.Log;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import java.io.IOException;
import java.io.InputStream;

/**
 * Author: Jeremy Wadsack
 */
public class HttpHelper {

    private static final String LOG_TAG = HttpHelper.class.getName();

    /**
     * A helper function to grab content from a URL.
     *
     * @param url URL of the item to download
     *
     * @return an input stream to the content. The caller is responsible for
     * closing the stream. Content will be null in the case of errors.
     * @throws java.io.IOException if an error occurs loading the url
     */
    public static InputStream download(String url) throws IOException {
        InputStream data = null;
        Log.d(LOG_TAG, "Starting download: " + url);
        HttpClient http = new DefaultHttpClient();
        HttpGet method = new HttpGet(url);

        try {
            HttpResponse response = http.execute(method);
            data = response.getEntity().getContent();
        } catch (IllegalStateException e) {
            Log.e(LOG_TAG, "error downloading", e);
        }
        Log.d(LOG_TAG, "Download complete");
        return data;
    }
}