com.facebook.ads.sdk.APINode.java Source code

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Here is the source code for com.facebook.ads.sdk.APINode.java

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/**
 * Copyright (c) 2015-present, Facebook, Inc. All rights reserved.
 *
 * You are hereby granted a non-exclusive, worldwide, royalty-free license to
 * use, copy, modify, and distribute this software in source code or binary
 * form for use in connection with the web services and APIs provided by
 * Facebook.
 *
 * As with any software that integrates with the Facebook platform, your use
 * of this software is subject to the Facebook Developer Principles and
 * Policies [http://developers.facebook.com/policy/]. This copyright notice
 * shall be included in all copies or substantial portions of the software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 */
package com.facebook.ads.sdk;

import com.google.gson.JsonObject;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import com.facebook.ads.sdk.APIException.MalformedResponseException;

public class APINode implements APIResponse {

    protected APIContext context = null;
    protected String rawValue = null;

    public static APINode loadJSON(String json, APIContext context) {
        APINode result = null;
        result = new APINode();
        result.context = context;
        result.rawValue = json;
        return result;
    }

    public APIContext getContext() {
        return context;
    }

    public void setContext(APIContext context) {
        this.context = context;
    }

    public String toString() {
        return rawValue;
    }

    public String getId() {
        try {
            JsonParser parser = new JsonParser();
            return parser.parse(rawValue).getAsJsonObject().get("id").getAsString();
        } catch (Exception e) {
            return null;
        }
    };

    public String getRawValue() {
        return rawValue;
    }

    @Override
    public String getRawResponse() {
        return rawValue;
    }

    @Override
    public JsonObject getRawResponseAsJsonObject() {
        JsonParser parser = new JsonParser();
        try {
            return parser.parse(rawValue).getAsJsonObject();
        } catch (Exception e) {
            return null;
        }
    }

    @Override
    public APINode head() {
        return this;
    }

    public static APINodeList parseResponse(String json, APIContext context, APIRequest<APINode> request)
            throws MalformedResponseException {
        APINodeList<APINode> nodes = new APINodeList<APINode>(request, json);
        JsonArray arr;
        JsonObject obj;
        JsonParser parser = new JsonParser();
        Exception exception = null;
        try {
            JsonElement result = parser.parse(json);
            if (result.isJsonArray()) {
                // First, check if it's a pure JSON Array
                arr = result.getAsJsonArray();
                for (int i = 0; i < arr.size(); i++) {
                    nodes.add(loadJSON(arr.get(i).getAsJsonObject().toString(), context));
                }
                ;
                return nodes;
            } else if (result.isJsonObject()) {
                obj = result.getAsJsonObject();
                if (obj.has("data")) {
                    if (obj.has("paging")) {
                        JsonObject paging = obj.get("paging").getAsJsonObject().get("cursors").getAsJsonObject();
                        nodes.setPaging(paging.get("before").getAsString(), paging.get("after").getAsString());
                    }

                    if (obj.get("data").isJsonArray()) {
                        // Second, check if it's a JSON array with "data"
                        arr = obj.get("data").getAsJsonArray();
                        for (int i = 0; i < arr.size(); i++) {
                            nodes.add(loadJSON(arr.get(i).getAsJsonObject().toString(), context));
                        }
                        ;
                    } else if (obj.get("data").isJsonObject()) {
                        // Third, check if it's a JSON object with "data"
                        obj = obj.get("data").getAsJsonObject();
                        nodes.add(loadJSON(obj.toString(), context));
                    }
                    return nodes;
                } else if (obj.has("images")) {
                    // Fourth, check if it's a map of image objects
                    obj = obj.get("images").getAsJsonObject();
                    for (Map.Entry<String, JsonElement> entry : obj.entrySet()) {
                        nodes.add(loadJSON(entry.getValue().toString(), context));
                    }
                    return nodes;
                } else {
                    // Fifth, check if it's an array of objects indexed by id
                    boolean isIdIndexedArray = true;
                    for (Map.Entry entry : obj.entrySet()) {
                        String key = (String) entry.getKey();
                        if (key.equals("__fb_trace_id__")) {
                            continue;
                        }
                        JsonElement value = (JsonElement) entry.getValue();
                        if (value != null && value.isJsonObject() && value.getAsJsonObject().has("id")
                                && value.getAsJsonObject().get("id") != null
                                && value.getAsJsonObject().get("id").getAsString().equals(key)) {
                            nodes.add(loadJSON(value.toString(), context));
                        } else {
                            isIdIndexedArray = false;
                            break;
                        }
                    }
                    if (isIdIndexedArray) {
                        return nodes;
                    }

                    // Sixth, check if it's pure JsonObject
                    nodes.clear();
                    nodes.add(loadJSON(json, context));
                    return nodes;
                }
            }
        } catch (Exception e) {
            exception = e;
        }
        throw new MalformedResponseException("Invalid response string: " + json, exception);
    }

    @Override
    public APIException getException() {
        return null;
    }
}