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.sandbox.download.connection;
038:
039: import java.io.FileNotFoundException;
040: import java.io.IOException;
041: import java.io.InputStream;
042: import java.util.Date;
043: import org.netbeans.installer.sandbox.download.Download;
044: import org.netbeans.installer.utils.exceptions.InitializationException;
045:
046: /**
047: *
048: * @author Kirill Sorokin
049: */
050: public class ResourceConnection extends Connection {
051: private String name;
052: private ClassLoader classLoader;
053:
054: private InputStream inputStream;
055:
056: public ResourceConnection(String aName, ClassLoader aClassLoader)
057: throws InitializationException {
058: if (aName != null) {
059: name = aName;
060: } else {
061: throw new InitializationException(
062: "The supplied resource name cannot be null.");
063: }
064:
065: if (aClassLoader != null) {
066: classLoader = aClassLoader;
067: } else {
068: classLoader = getClass().getClassLoader();
069: }
070: }
071:
072: public void open() throws IOException {
073: assert inputStream == null;
074:
075: try {
076: inputStream = classLoader.getResource(name).openStream();
077: } catch (NullPointerException e) {
078: throw new FileNotFoundException();
079: }
080: }
081:
082: public void close() throws IOException {
083: if (inputStream != null) {
084: inputStream.close();
085: inputStream = null;
086: }
087: }
088:
089: public int read(byte[] buffer) throws IOException {
090: assert inputStream != null;
091:
092: return inputStream.read(buffer);
093: }
094:
095: public int available() throws IOException {
096: return inputStream.available();
097: }
098:
099: public boolean supportsRanges() {
100: return false;
101: }
102:
103: public long getContentLength() {
104: return Download.UNDEFINED_LENGTH;
105: }
106:
107: public Date getModificationDate() {
108: return new Date();
109: }
110: }
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