001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU General
007: * Public License Version 2 only ("GPL") or the Common Development and Distribution
008: * License("CDDL") (collectively, the "License"). You may not use this file except in
009: * compliance with the License. You can obtain a copy of the License at
010: * http://www.netbeans.org/cddl-gplv2.html or nbbuild/licenses/CDDL-GPL-2-CP. See the
011: * License for the specific language governing permissions and limitations under the
012: * License. When distributing the software, include this License Header Notice in
013: * each file and include the License file at nbbuild/licenses/CDDL-GPL-2-CP. Sun
014: * designates this particular file as subject to the "Classpath" exception as
015: * provided by Sun in the GPL Version 2 section of the License file that
016: * accompanied this code. If applicable, add the following below the License Header,
017: * with the fields enclosed by brackets [] replaced by your own identifying
018: * information: "Portions Copyrighted [year] [name of copyright owner]"
019: *
020: * Contributor(s):
021: *
022: * The Original Software is NetBeans. The Initial Developer of the Original Software
023: * is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun Microsystems, Inc. All
024: * Rights Reserved.
025: *
026: * If you wish your version of this file to be governed by only the CDDL or only the
027: * GPL Version 2, indicate your decision by adding "[Contributor] elects to include
028: * this software in this distribution under the [CDDL or GPL Version 2] license." If
029: * you do not indicate a single choice of license, a recipient has the option to
030: * distribute your version of this file under either the CDDL, the GPL Version 2 or
031: * to extend the choice of license to its licensees as provided above. However, if
032: * you add GPL Version 2 code and therefore, elected the GPL Version 2 license, then
033: * the option applies only if the new code is made subject to such option by the
034: * copyright holder.
035: */
036:
037: package org.netbeans.installer.downloader;
038:
039: import java.io.File;
040: import org.netbeans.installer.downloader.queue.DispatchedQueue;
041: import org.netbeans.installer.utils.helper.FinishHandler;
042:
043: /**
044: * It's main downloader class. It's singleton.
045: * Only from here client can access download service and register there own listeners.
046: * Also from here managed execution of downloding process.
047: *
048: * @author Danila_Dugurov
049: */
050: public class DownloadManager {
051: /////////////////////////////////////////////////////////////////////////////////
052: // Static
053: public static final DownloadManager instance = new DownloadManager();
054:
055: public static DownloadManager getInstance() {
056: return instance;
057: }
058:
059: /////////////////////////////////////////////////////////////////////////////////
060: // Instance
061: private File localDirectory;
062: private FinishHandler finishHandler;
063:
064: private File defaultFolder;
065: private DispatchedQueue queue;
066: private File wd;
067:
068: private DownloadManager() {
069: }
070:
071: public void init() {
072: defaultFolder = new File(localDirectory, DOWNLOADS_DIR_NAME);
073: defaultFolder.mkdirs();
074:
075: wd = new File(localDirectory, WD_DIR_NAME);
076: wd.mkdirs();
077:
078: queue = new DispatchedQueue(new File(wd, STATE_FILE_NAME));
079: queue.reset();
080: }
081:
082: public PumpingsQueue queue() {
083: return queue;
084: }
085:
086: public void registerListener(final DownloadListener listener) {
087: queue.addListener(listener);
088: }
089:
090: public void invoke() {
091: queue.invoke();
092: }
093:
094: public void terminate() {
095: queue.terminate();
096: }
097:
098: public boolean isActive() {
099: return queue.isActive();
100: }
101:
102: public File getWd() {
103: return wd;
104: }
105:
106: public File defaultFolder() {
107: return defaultFolder;
108: }
109:
110: public File getLocalDirectory() {
111: return localDirectory;
112: }
113:
114: public void setLocalDirectory(final File localDirectory) {
115: this .localDirectory = localDirectory;
116: }
117:
118: public FinishHandler getFinishHandler() {
119: return finishHandler;
120: }
121:
122: public void setFinishHandler(final FinishHandler finishHandler) {
123: this .finishHandler = finishHandler;
124: }
125:
126: /////////////////////////////////////////////////////////////////////////////////
127: // Constants
128: public static final String DOWNLOADS_DIR_NAME = "downloads"; // NOI18N
129:
130: public static final String WD_DIR_NAME = "wd"; // NOI18N
131:
132: public static final String STATE_FILE_NAME = "state.xml"; // NOI18N
133: }
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