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Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/JWalk.java')
-rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/JWalk.java | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/JWalk.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/JWalk.java deleted file mode 100644 index 76797811d..000000000 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/JWalk.java +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Copyright (C) 2014 Tim Bray <tbray@textuality.com> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -package org.sufficientlysecure.keychain.util; - -import org.json.JSONArray; -import org.json.JSONException; -import org.json.JSONObject; - -/** - * Minimal hierarchy selector - * - * This is for picking out an item in a large multilevel JSON object, for example look at - * the Keybase.io User object, documentation at https://keybase.io/__/api-docs/1.0#user-objects - * an example available via - * curl https://keybase.io/_/api/1.0/user/lookup.json?username=timbray - * - * If you want to retrieve the ascii-armored key, you'd say - * String key = JWalk.getString(match,"them", "public_keys", "primary", "bundle"); - */ -public class JWalk { - - /** - * Returns an int member value from the JSON sub-object addressed by the path - * - * @param json The object - * @param path list of string object member selectors - * @return the int addressed by the path, assuming such a thing exists - * @throws JSONException if any step in the path doesn’t work - */ - public static int getInt(JSONObject json, String... path) throws JSONException { - json = walk(json, path); - return json.getInt(path[path.length - 1]); - } - - /** - * Returns a long member value from the JSON sub-object addressed by the path - * - * @param json The object - * @param path list of string object member selectors - * @return the int addressed by the path, assuming such a thing exists - * @throws JSONException if any step in the path doesn’t work - */ - public static long getLong(JSONObject json, String... path) throws JSONException { - json = walk(json, path); - return json.getLong(path[path.length - 1]); - } - - /** - * Returns a String member value from the JSON sub-object addressed by the path - * - * @param json The object - * @param path list of string object member selectors - * @return the int addressed by the path, assuming such a thing exists - * @throws JSONException if any step in the path doesn’t work - */ - public static String getString(JSONObject json, String... path) throws JSONException { - json = walk(json, path); - return json.getString(path[path.length - 1]); - } - - /** - * Returns a JSONArray member value from the JSON sub-object addressed by the path - * - * @param json The object - * @param path list of string object member selectors - * @return the int addressed by the path, assuming such a thing exists - * @throws JSONException if any step in the path doesn’t work - */ - public static JSONArray getArray(JSONObject json, String... path) throws JSONException { - json = walk(json, path); - return json.getJSONArray(path[path.length - 1]); - } - - /** - * Returns a JSONObject member value from the JSON sub-object addressed by the path, or null - * - * @param json The object - * @param path list of string object member selectors - * @return the int addressed by the path, assuming such a thing exists - * @throws JSONException if any step in the path, except for the last, doesn’t work - */ - public static JSONObject optObject(JSONObject json, String... path) throws JSONException { - json = walk(json, path); - return json.optJSONObject(path[path.length - 1]); - } - - private static JSONObject walk(JSONObject json, String... path) throws JSONException { - int len = path.length - 1; - int pathIndex = 0; - try { - while (pathIndex < len) { - json = json.getJSONObject(path[pathIndex]); - pathIndex++; - } - } catch (JSONException e) { - // try to give ’em a nice-looking error - StringBuilder sb = new StringBuilder(); - for (int i = 0; i < len; i++) { - sb.append(path[i]).append('.'); - } - sb.append(path[len]); - throw new JSONException("JWalk error at step " + pathIndex + " of " + sb); - } - return json; - } -} |