org.apache.shindig.social.core.model.IdSpec.java Source code

Introduction

Here is the source code for org.apache.shindig.social.core.model.IdSpec.java

Source

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 org.apache.shindig.social.core.model;

import com.google.common.collect.Lists;
import org.json.JSONArray;
import org.json.JSONException;

import java.util.List;

public class IdSpec {
    public enum Type {
        VIEWER, OWNER, VIEWER_FRIENDS, OWNER_FRIENDS, USER_IDS
    }

    private String jsonSpec;
    private Type type;

    public IdSpec(String jsonSpec, Type type) {
        this.jsonSpec = jsonSpec;
        this.type = type;
    }

    public static IdSpec fromJson(String jsonIdSpec) {
        Type idSpecEnum;
        try {
            idSpecEnum = Type.valueOf(jsonIdSpec);
        } catch (IllegalArgumentException e) {
            idSpecEnum = Type.USER_IDS;
        }

        return new IdSpec(jsonIdSpec, idSpecEnum);
    }

    /**
     * Only valid for IdSpecs of type USER_IDS.
     * @return A list of the user ids in the id spec
     *
     * @throws JSONException If the id spec isn't a valid json String array
     */
    public List<String> fetchUserIds() throws JSONException {
        JSONArray userIdArray;
        try {
            userIdArray = new JSONArray(jsonSpec);
        } catch (JSONException e) {
            // If it isn't an array, treat it as a simple string
            // TODO: This will go away with rest so we can remove this hack
            return Lists.newArrayList(jsonSpec);
        }
        List<String> userIds = Lists.newArrayListWithExpectedSize(userIdArray.length());

        for (int i = 0; i < userIdArray.length(); i++) {
            userIds.add(userIdArray.getString(i));
        }
        return userIds;
    }

    public Type getType() {
        return type;
    }
}