/*
* Copyright (C) 2010 ZXing authors
*
* 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.google.zxing.client.android.result.supplement;
import android.content.Context;
import android.os.Handler;
import android.util.Log;
import android.widget.TextView;
import com.google.zxing.client.android.AndroidHttpClient;
import com.google.zxing.client.android.LocaleManager;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
final class ProductResultInfoRetriever extends SupplementalInfoRetriever {
private static final String TAG = ProductResultInfoRetriever.class.getSimpleName();
private static final String BASE_PRODUCT_URI =
"http://www.google." + LocaleManager.getProductSearchCountryTLD() +
"/m/products?ie=utf8&oe=utf8&scoring=p&source=zxing&q=";
private static final Pattern PRODUCT_NAME_PRICE_PATTERN =
Pattern.compile("owb63p\">([^<]+).+zdi3pb\">([^<]+)");
private final String productID;
ProductResultInfoRetriever(TextView textView, String productID, Handler handler,
Context context) {
super(textView, handler, context);
this.productID = productID;
}
@Override
void retrieveSupplementalInfo() throws IOException, InterruptedException {
String encodedProductID = URLEncoder.encode(productID, "UTF-8");
String uri = BASE_PRODUCT_URI + encodedProductID;
HttpUriRequest head = new HttpGet(uri);
AndroidHttpClient client = AndroidHttpClient.newInstance(null);
HttpResponse response = client.execute(head);
int status = response.getStatusLine().getStatusCode();
if (status != 200) {
return;
}
String content = consume(response.getEntity());
Matcher matcher = PRODUCT_NAME_PRICE_PATTERN.matcher(content);
if (matcher.find()) {
append(matcher.group(1));
append(matcher.group(2));
}
setLink(uri);
}
private static String consume(HttpEntity entity) {
Log.d(TAG, "Consuming entity");
ByteArrayOutputStream out = new ByteArrayOutputStream();
InputStream in = null;
try {
in = entity.getContent();
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = in.read(buffer)) > 0) {
out.write(buffer, 0, bytesRead);
}
} catch (IOException ioe) {
Log.w(TAG, ioe);
// continue
} finally {
if (in != null) {
try {
in.close();
} catch (IOException ioe) {
// continue
}
}
}
try {
return new String(out.toByteArray(), "UTF-8");
} catch (UnsupportedEncodingException uee) {
// can't happen
throw new IllegalStateException(uee);
}
}
}