001 /** 002 * =========================================================== 003 * LibRepository : a free Java content repository access layer 004 * =========================================================== 005 * 006 * Project Info: http://jfreereport.pentaho.org/librepository/ 007 * 008 * (C) Copyright 2006, by Pentaho Corporation and Contributors. 009 * 010 * This library is free software; you can redistribute it and/or modify it under the terms 011 * of the GNU Lesser General Public License as published by the Free Software Foundation; 012 * either version 2.1 of the License, or (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 015 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 016 * See the GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public License along with this 019 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, 020 * Boston, MA 02111-1307, USA. 021 * 022 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 023 * in the United States and other countries.] 024 * 025 * ------------ 026 * ZipContentLocation.java 027 * ------------ 028 * (C) Copyright 2006, by Pentaho Corporation. 029 */ 030 031 package org.jfree.repository.zipwriter; 032 033 import java.util.HashMap; 034 import java.util.zip.ZipEntry; 035 import java.io.IOException; 036 037 import org.jfree.repository.ContentLocation; 038 import org.jfree.repository.ContentEntity; 039 import org.jfree.repository.ContentIOException; 040 import org.jfree.repository.ContentItem; 041 import org.jfree.repository.ContentCreationException; 042 import org.jfree.repository.Repository; 043 import org.jfree.repository.RepositoryUtilities; 044 045 /** 046 * Creation-Date: 01.12.2006, 21:13:24 047 * 048 * @author Thomas Morgner 049 */ 050 public class ZipContentLocation implements ContentLocation 051 { 052 private HashMap entries; 053 private String name; 054 private String contentId; 055 private ContentLocation parent; 056 private ZipRepository repository; 057 058 public ZipContentLocation(final ZipRepository repository, 059 final ContentLocation parent, 060 final String name) 061 { 062 this.repository = repository; 063 this.parent = parent; 064 this.name = name; 065 this.entries = new HashMap(); 066 this.contentId = RepositoryUtilities.buildName(this, "/") + "/"; 067 } 068 069 public ContentEntity[] listContents() throws ContentIOException 070 { 071 return (ContentEntity[]) entries.values().toArray 072 (new ContentEntity[entries.size()]); 073 } 074 075 public ContentEntity getEntry(final String name) throws ContentIOException 076 { 077 return (ContentEntity) entries.get(name); 078 } 079 080 /** 081 * Creates a new data item in the current location. This method must never 082 * return null. 083 * 084 * @param name 085 * @return 086 * @throws org.jfree.repository.ContentCreationException 087 * if the item could not be created. 088 */ 089 public ContentItem createItem(final String name) throws ContentCreationException 090 { 091 if (entries.containsKey(name)) 092 { 093 throw new ContentCreationException("Entry already exists"); 094 } 095 096 final ZipContentItem item = new ZipContentItem(name, repository, this); 097 entries.put (name, item); 098 return item; 099 } 100 101 public ContentLocation createLocation(final String name) 102 throws ContentCreationException 103 { 104 if (entries.containsKey(name)) 105 { 106 throw new ContentCreationException("Entry already exists"); 107 } 108 109 final ZipContentLocation item = new ZipContentLocation(repository, this, name); 110 entries.put (name, item); 111 if ("/".equals(this.contentId) == false) 112 { 113 try 114 { 115 final ZipEntry entry = new ZipEntry(contentId); 116 repository.writeDirectory(entry); 117 } 118 catch (IOException e) 119 { 120 throw new ContentCreationException("Failed to create directory."); 121 } 122 } 123 return item; 124 } 125 126 public boolean exists(final String name) 127 { 128 return entries.containsKey(name); 129 } 130 131 public String getName() 132 { 133 return name; 134 } 135 136 public Object getContentId() 137 { 138 return contentId; 139 } 140 141 public Object getAttribute(final String domain, final String key) 142 { 143 return null; 144 } 145 146 public boolean setAttribute(final String domain, final String key, final Object value) 147 { 148 return false; 149 } 150 151 public ContentLocation getParent() 152 { 153 return parent; 154 } 155 156 public Repository getRepository() 157 { 158 return repository; 159 } 160 161 public boolean delete() 162 { 163 return false; 164 } 165 }