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
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: * The Original Software is NetBeans. The Initial Developer of the Original
026: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
027: * Microsystems, Inc. All Rights Reserved.
028: *
029: * If you wish your version of this file to be governed by only the CDDL
030: * or only the GPL Version 2, indicate your decision by adding
031: * "[Contributor] elects to include this software in this distribution
032: * under the [CDDL or GPL Version 2] license." If you do not indicate a
033: * single choice of license, a recipient has the option to distribute
034: * your version of this file under either the CDDL, the GPL Version 2 or
035: * to extend the choice of license to its licensees as provided above.
036: * However, if you add GPL Version 2 code and therefore, elected the GPL
037: * Version 2 license, then the option applies only if the new code is
038: * made subject to such option by the copyright holder.
039: */
040:
041: package org.netbeans.lib.profiler.utils;
042:
043: import java.io.File;
044: import java.io.FileInputStream;
045: import java.io.IOException;
046: import java.io.InputStream;
047: import java.util.zip.ZipEntry;
048: import java.util.zip.ZipFile;
049:
050: /**
051: * A container that can represent either a plain file, or an entry in the zip/jar archive.
052: * Used for unification of read operations on both types of files. So far likely not the most clean implementation.
053: *
054: * @author Misha Dmitriev
055: */
056: public class FileOrZipEntry {
057: //~ Instance fields ----------------------------------------------------------------------------------------------------------
058:
059: private File file;
060: private String dirOrJar;
061: private String fileName;
062: private boolean isZipEntry;
063: private long len;
064:
065: //~ Constructors -------------------------------------------------------------------------------------------------------------
066:
067: public FileOrZipEntry(String dirOrJar, String fileName) {
068: this .dirOrJar = dirOrJar;
069: this .fileName = fileName;
070:
071: String lcd = dirOrJar.toLowerCase();
072: isZipEntry = (lcd.endsWith(".jar") || lcd.endsWith(".zip")); // NOI18N
073: len = -1;
074: }
075:
076: public FileOrZipEntry(File file) {
077: this .file = file;
078: isZipEntry = false;
079: len = -1;
080: }
081:
082: //~ Methods ------------------------------------------------------------------------------------------------------------------
083:
084: public File getFile() {
085: if (isZipEntry) {
086: return null;
087: }
088:
089: if (file == null) {
090: file = new File(dirOrJar, fileName);
091: }
092:
093: return file;
094: }
095:
096: public boolean isFile() {
097: return (!isZipEntry);
098: }
099:
100: public String getFullName() {
101: if (!isZipEntry) {
102: if (file == null) {
103: file = new File(dirOrJar, fileName);
104: }
105:
106: return file.getAbsolutePath();
107: } else {
108: return dirOrJar + "/" + fileName; // NOI18N
109: }
110: }
111:
112: public InputStream getInputStream() throws IOException {
113: if (file != null) {
114: return new FileInputStream(file);
115: } else if (!isZipEntry) {
116: file = new File(dirOrJar, fileName);
117: len = file.length();
118:
119: return new FileInputStream(file);
120: } else {
121: ZipFile zip = new ZipFile(dirOrJar);
122: ZipEntry entry = zip.getEntry(fileName);
123: len = entry.getSize();
124:
125: return zip.getInputStream(entry);
126: }
127: }
128:
129: public long getLength() throws IOException {
130: if (len != -1) {
131: return len;
132: } else if (file != null) {
133: return file.length();
134: } else if (!isZipEntry) {
135: return (new File(dirOrJar, fileName)).length();
136: } else {
137: ZipFile zip = new ZipFile(dirOrJar);
138:
139: return zip.getEntry(fileName).getSize();
140: }
141: }
142:
143: public String getName() {
144: if (isZipEntry) {
145: int lastSlashIdx = fileName.lastIndexOf('/'); // NOI18N
146:
147: if (lastSlashIdx == -1) {
148: return fileName;
149: } else {
150: return fileName.substring(lastSlashIdx + 1);
151: }
152: } else {
153: if (fileName == null) {
154: fileName = file.getName();
155: }
156:
157: return fileName;
158: }
159: }
160: }
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