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package org.linaro.connect;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
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 org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONTokener;
import android.util.Log;
public class JSONUtils {
private final static String TAG = LinaroConnectActivity.TAG;
/**
* Parses the given input stream into a JSON object. This function
* also takes care of closing the input stream
*/
public static JSONObject getObject(InputStream is) {
StringBuffer sb = new StringBuffer();
BufferedReader br = new BufferedReader(new InputStreamReader(is), 1024);
try {
char buff[] = new char[1024];
int len;
while ( (len=br.read(buff)) > 0 )
sb.append(buff, 0, len);
}
catch(IOException e) {
Log.e(TAG, "Unable to read JSON layout", e);
}
try {
is.close();
} catch (IOException e) {}
return toJSON(sb.toString());
}
public static JSONObject getObjectFromUrl(String url) {
HttpClient client = new DefaultHttpClient();
InputStream is = null;
try {
HttpResponse resp = client.execute(new HttpGet(url));
if (resp.getStatusLine().getStatusCode() == 200) {
is = resp.getEntity().getContent();
} else {
Log.e(TAG, "Error fetching URL: " + url);
}
}
catch(Exception e) {
Log.e(TAG, "Exception while fetching URL: " + url, e);
}
if (is == null) //just give an empty object
return toJSON("{}");
return getObject(is);
}
public static JSONObject toJSON(String json) {
try {
return (JSONObject) new JSONTokener(json).nextValue();
} catch(JSONException e) {
Log.e(TAG, "Unable to convert string to JSON", e);
}
return null;
}
}
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