org.waveprotocol.wave.client.wavepanel.impl.toolbar.gadget.GwtGadgetInfoParser.java Source code

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Here is the source code for org.waveprotocol.wave.client.wavepanel.impl.toolbar.gadget.GwtGadgetInfoParser.java

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/**
 * 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.waveprotocol.wave.client.wavepanel.impl.toolbar.gadget;

import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.json.client.JSONValue;

import org.waveprotocol.wave.client.wavepanel.impl.toolbar.gadget.GadgetInfoProvider.GadgetCategoryType;
import org.waveprotocol.wave.client.wavepanel.impl.toolbar.gadget.GadgetInfoProvider.GadgetInfo;

import java.util.ArrayList;
import java.util.List;

public class GwtGadgetInfoParser implements GadgetInfoParser {

    @Override
    public List<GadgetInfo> parseGadgetInfoJson(String json) {
        List<GadgetInfo> gadgetList = new ArrayList<GadgetInfo>();
        JSONValue value = JSONParser.parseStrict(json);
        JSONArray array = value.isArray();
        if (array != null) {
            for (int i = 0; i < array.size(); i++) {
                JSONValue item = array.get(i);
                GadgetInfo info = parseGadgetInfo(item);
                if (info != null) {
                    gadgetList.add(info);
                }
            }
        }
        return gadgetList;
    }

    private GadgetInfo parseGadgetInfo(JSONValue item) {
        JSONObject object = item.isObject();
        if (object != null) {
            String name = object.get("name").isString().stringValue();
            String desc = object.get("desc").isString().stringValue();
            GadgetCategoryType primaryCategory = GadgetCategoryType
                    .of(object.get("primaryCategory").isString().stringValue());
            GadgetCategoryType secondaryCategory = GadgetCategoryType
                    .of(object.get("secondaryCategory").isString().stringValue());
            String gadgetUrl = object.get("gadgetUrl").isString().stringValue();
            String author = object.get("author").isString().stringValue();
            String submittedBy = object.get("submittedBy").isString().stringValue();
            String imageUrl = object.get("imageUrl").isString().stringValue();

            return new GadgetInfo(name, desc, primaryCategory, secondaryCategory, gadgetUrl, author, submittedBy,
                    imageUrl);
        }
        return null;
    }
}