com.appcelerator.titanium.desktop.ui.wizard.Release.java Source code

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Here is the source code for com.appcelerator.titanium.desktop.ui.wizard.Release.java

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/**
 * Copyright 2011-2012 Appcelerator, Inc.
 *
 * 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.appcelerator.titanium.desktop.ui.wizard;

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

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.ProjectScope;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.osgi.service.prefs.BackingStoreException;
import org.osgi.service.prefs.Preferences;

import com.appcelerator.titanium.desktop.DesktopPlugin;
import com.aptana.core.logging.IdeLog;

class Release {

    /**
     * Preference keys used to store releases inside the project preferences.
     */
    private static final String APP_PAGE_PREF_KEY = "app_page"; //$NON-NLS-1$
    private static final String PUBDATE_PREF_KEY = "pubdate"; //$NON-NLS-1$
    private static final String VERSION_PREF_KEY = "app_version"; //$NON-NLS-1$
    private static final String PLATFORM_PREF_KEY = "platform"; //$NON-NLS-1$
    private static final String LABEL_PREF_KEY = "label"; //$NON-NLS-1$
    private static final String URL_PREF_KEY = "url"; //$NON-NLS-1$

    /**
     * Nodename for the parent of all the release packages stored in prefs for the project.
     */
    private static final String PACKAGES_PREF_NODE = "packages"; //$NON-NLS-1$

    private String url;
    private String label;
    private String version;
    private String platform;
    private String pubDate;
    private String appPage;

    public Release(String url, String label, String platform, String version, String pubDate, String appPage) {
        this.url = url;
        this.label = label;
        this.version = version;
        this.platform = platform;
        this.pubDate = pubDate;
        this.appPage = appPage;
    }

    public String getURL() {
        return url;
    }

    public String getLabel() {
        return label;
    }

    public String getVersion() {
        return version;
    }

    public String getPlatform() {
        return platform;
    }

    public String getPubDate() {
        return pubDate;
    }

    public String getAppPage() {
        return appPage;
    }

    /**
     * Given the JSON response from the Cloud service, store the result in the preferences (the releases, the pubDate,
     * the public link).
     * 
     * @param project
     * @param json
     */
    public static void updateForProject(IProject project, JSONObject json) {
        final JSONArray releases = (JSONArray) json.get("releases"); //$NON-NLS-1$
        final String appPage = (String) json.get(APP_PAGE_PREF_KEY);
        final String pubDate = (String) json.get(PUBDATE_PREF_KEY);

        // delete current rows
        deletePackagesForProject(project);

        // insert new rows
        for (Object r : releases) {
            String label = (String) ((JSONObject) r).get(LABEL_PREF_KEY);
            String url = (String) ((JSONObject) r).get(URL_PREF_KEY);
            String platform = (String) ((JSONObject) r).get(PLATFORM_PREF_KEY);
            String version = (String) ((JSONObject) r).get(VERSION_PREF_KEY);
            addPackageToDatabase(project, url, label, platform, version, pubDate, appPage);
        }
    }

    private static void addPackageToDatabase(IProject project, String url, String label, String platform,
            String version, String pubDate, String appPage) {
        ProjectScope scope = new ProjectScope(project);
        try {
            Preferences p = scope.getNode(DesktopPlugin.PLUGIN_ID).node(PACKAGES_PREF_NODE);
            p = p.node(label);
            p.put(URL_PREF_KEY, url);
            p.put(LABEL_PREF_KEY, label);
            p.put(PLATFORM_PREF_KEY, platform);
            p.put(VERSION_PREF_KEY, version);
            p.put(PUBDATE_PREF_KEY, pubDate);
            p.put(APP_PAGE_PREF_KEY, appPage);
            p.flush();
        } catch (BackingStoreException e) {
            IdeLog.logError(DesktopPlugin.getDefault(), e);
        }
    }

    private static void deletePackagesForProject(IProject project) {
        ProjectScope scope = new ProjectScope(project);
        try {
            scope.getNode(DesktopPlugin.PLUGIN_ID).node(PACKAGES_PREF_NODE).removeNode();
        } catch (BackingStoreException e) {
            IdeLog.logError(DesktopPlugin.getDefault(), e);
        }
    }

    /**
     * Load the saved/stored releases for the project (from prefs).
     * 
     * @param project
     * @return
     */
    public static List<Release> load(IProject project) {
        List<Release> releases = new ArrayList<Release>();
        ProjectScope scope = new ProjectScope(project);
        try {
            Preferences p = scope.getNode(DesktopPlugin.PLUGIN_ID);
            if (p == null) {
                return releases;
            }
            p = p.node(PACKAGES_PREF_NODE);
            if (p == null) {
                return releases;
            }
            for (String childName : p.childrenNames()) {
                Preferences releasePref = p.node(childName);
                releases.add(new Release(releasePref.get(URL_PREF_KEY, null), releasePref.get(LABEL_PREF_KEY, null),
                        releasePref.get(PLATFORM_PREF_KEY, null), releasePref.get(VERSION_PREF_KEY, null),
                        releasePref.get(PUBDATE_PREF_KEY, null), releasePref.get(APP_PAGE_PREF_KEY, null)));
            }
        } catch (BackingStoreException e) {
            IdeLog.logError(DesktopPlugin.getDefault(), e);
        }
        return releases;
    }
}