com.commonsware.android.vidtry.URLHistory.java Source code

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Here is the source code for com.commonsware.android.vidtry.URLHistory.java

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/***
   Copyright (c) 2008-2009 CommonsWare, LLC
       
   Licensed 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 com.commonsware.android.vidtry;

import android.content.Context;
import android.widget.ArrayAdapter;
import java.util.ArrayList;
import java.io.IOException;
import java.io.Writer;
import java.util.Iterator;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONStringer;

class URLHistory extends ArrayAdapter<URLHistory.HistoryItem> {
    private ArrayList<URLHistory.HistoryItem> spareCopy = new ArrayList<URLHistory.HistoryItem>();

    URLHistory(Context context, int resource) {
        super(context, resource, new ArrayList<URLHistory.HistoryItem>());
    }

    void update(String url) {
        for (HistoryItem h : spareCopy) {
            if (url.equals(h.url)) {
                h.count++;
                return;
            }
        }

        HistoryItem h = new HistoryItem(url);

        spareCopy.add(h);
        add(h); // duplicate due to moronic filtering
    }

    void save(Writer out) throws JSONException, IOException {
        JSONStringer json = new JSONStringer().object();

        for (HistoryItem h : spareCopy) {
            h.emit(json);
        }

        out.write(json.endObject().toString());
    }

    void load(String rawJSON) throws JSONException {
        JSONObject json = new JSONObject(rawJSON);

        for (Iterator i = json.keys(); i.hasNext();) {
            String key = i.next().toString();
            HistoryItem h = new HistoryItem(key, json.getInt(key));

            spareCopy.add(h);
            add(h);
        }
    }

    class HistoryItem {
        String url = null;
        int count = 1;

        HistoryItem(String url) {
            this.url = url;
        }

        HistoryItem(String url, int count) {
            this.url = url;
            this.count = count;
        }

        public String toString() {
            return (url);
        }

        void emit(JSONStringer json) throws JSONException {
            json.key(url).value(count);
        }
    }
}