A Parse.com Serializable ParseObject Proxy

ParseProxyObject.java

// By Jamie Chapman, @chappers57
// License: open, do as you wish, just don't blame me if stuff breaks ;-)

public class ParseProxyObject implements Serializable {
	
	private static final long serialVersionUID = 1L;
	private HashMap<String, Object> values = new HashMap<String, Object>();

	public HashMap<String, Object> getValues() {
		return values;
	}

	public void setValues(HashMap<String, Object> values) {
		this.values = values;
	}
	
	public ParseProxyObject(ParseObject object) {
		
		// Loop the keys in the ParseObject
		for(String key : object.keySet()) {
			@SuppressWarnings("rawtypes")
			Class classType = object.get(key).getClass();
			if(classType == byte[].class || classType == String.class || 
					classType == Integer.class || classType == Boolean.class) {
				values.put(key, object.get(key));
			} else if(classType == ParseUser.class) {
				ParseProxyObject parseUserObject = new ParseProxyObject((ParseObject)object.get(key));
				values.put(key, parseUserObject);
			} else {
				// You might want to add more conditions here, for embedded ParseObject, ParseFile, etc.
			}
		}
	}
	
	public String getString(String key) {
		if(has(key)) {
			return (String) values.get(key);
		} else {
			return "";
		}
	}
	
	public int getInt(String key) {
		if(has(key)) {
			return (Integer)values.get(key);
		} else {
			return 0;
		}
	}
	
	public Boolean getBoolean(String key) {
		if(has(key)) {
			return (Boolean)values.get(key);
		} else {
			return false;
		}
	}
	
	public byte[] getBytes(String key) {
		if(has(key)) {
			return (byte[])values.get(key);
		} else {
			return new byte[0];
		}
	}	
	
	public ParseProxyObject getParseUser(String key) {
		if(has(key)) {
			return (ParseProxyObject) values.get(key);
		} else {
			return null;
		}
	}
	
	public Boolean has(String key) {
		return values.containsKey(key);
	}
}

How do you load a ParseImageView using the PPO class you've written? I've tried the following:

ParseImageView image = new ParseImageView(this);
image.setImageResource(ppo.getBytes(ppo.getString("image")));
image.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
linearLayout.addView(image);

But setImageResource is not applicable. Any ideas?

Thank you for this sir!

Hi Jamie, Thanks , helps me a lot.
I forked it and I added another attributes and methods like createdAt, updatedAt and objectId;

Thanks Jamie, I forked this as well to retain a couple of more stuff from a ParseObject.

Hi Jamie,

Is this class still working? I'm getting a "Cannot resolve method" for the below code:

        ParseObject project = mProjects.get(position);
        ParseProxyObject proxyProject = new ParseProxyObject(project);

        Intent projectIntent = new Intent(ProjectListActivity.this, ProjectActivity.class);
        projectIntent.putExtra("project", proxyProject);
        startActivity(projectIntent);

Anyone tried with adding ParseFile in this class? if yes, then plz help a bit

Hi Fahid,

I believe that you can convert your ParseFile Object into a byte[] array. Once you have converted the ParseFile Object into a byte[] array, you can store the contents of the array within your HashMap<K, V>.

After the fact, when attempting to retrieve the byte[] array, you can utilise the getBytes(String K) access method on the ParseProxyObject Class.

I hope that helps.

Hi.
With this code I can only get attributes of a ParseObject, is there a way to retrieve the ParseObject?

Just Genius.
Thanks a lot!!

I used the idea of Unknown . Work for me for put extra images.

Hi Fahid,

I believe that you can convert your ParseFile Object into a byte[] array. Once you have converted the ParseFile Object into a byte[] array, you can store the contents of the array within your HashMap<K, V>.

After the fact, when attempting to retrieve the byte[] array, you can utilise the getBytes(String K) access method on the ParseProxyObject Class.

I hope that helps.

Maybe need to work on objectId for ParseObject

I am trying to get the UserObject but couldn't. This is what I did

  if (parseProxyObject.has("seller")) {
        ParseProxyObject parseUser = parseProxyObject.getParseUser(Constants.COLUMN_SELLER);
        if (parseUser != null) {
            //Log.e(TAG, parseProxyObject.getString("seller"));
            Log.e(TAG, parseUser.has(Constants.COLUMN_NAME) ? parseUser.getString(Constants.COLUMN_NAME) : parseUser.getString(Constants.COLUMN_NAME));
        }
    }

Any help. Thanks

How would you retrieve a ParseObject which is an attribute of another ParseObject?

Hi.
With this code I can only get attributes of a ParseObject, is there a way to retrieve the ParseObject?

add the following API to parseObject class:

1. change method from package to public:

public static <T extends ParseObject> T fromJSON(JSONObject json, String defaultClassName, boolean isComplete) {
//...
}

2. add toJSONObject method:

public JSONObject toJSONObject(){
        return toRest(new ParseEncoder() {
            // see OfflineStore
            @Override
            protected JSONObject encodeRelatedObject(ParseObject object) {
                try {
                    if (object.getObjectId() != null) {
                        JSONObject result = new JSONObject();
                        result.put("__type", "Pointer");
                        result.put("objectId", object.getObjectId());
                        result.put("className", object.getClassName());
                        return result;
                    }
                } catch (JSONException e) {
                    // This can literally never happen.
                    throw new RuntimeException(e);
                }
                return new JSONObject();
            }
        });
    }

3. sender

ParseObject p = ...;
Fragment f = new ChatFragment();
Bundle b = new Bundle();
b.putString("CONNECTION", p.toJSONObject().toString());
f.setArguments(b);

4. receiver

JSONObject object = new JSONObject(b.getString("CONNECTION")); // same as bundle key
ParseObject mConnection = ParseObject.fromJSON(object, "CONNECTION", true); // change class name