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19 package org.netbeans.modules.localhistory.store;
20
21 import java.io.BufferedInputStream  ;
22 import java.io.BufferedOutputStream ;
23 import java.io.File ;
24 import java.io.FileNotFoundException ;
25 import java.io.FileOutputStream ;
26 import java.io.FileInputStream ;
27 import java.io.IOException ;
28 import java.io.InputStream ;
29 import java.io.OutputStream ;
30 import java.sql.Date ;
31 import java.util.zip.ZipEntry ;
32 import java.util.zip.ZipInputStream ;
33 import java.util.zip.ZipOutputStream ;
34 import org.openide.filesystems.FileObject;
35 import org.openide.filesystems.FileUtil;
36
37
45 public abstract class StoreEntry {
46
47 private final File file;
48 private final File storeFile;
49 private final long ts;
50 private final String label;
51 private final Date date;
52 private String mimeType = null;
53
54 public static StoreEntry createStoreEntry(File file, File storeFile, long ts, String label) {
55 return new DefaultStoreEntry(file, storeFile, ts, label);
56 }
57
58 public static StoreEntry createDeletedStoreEntry(File file, long ts) {
59 return new DeletedStoreEntry(file, ts);
60 }
61
62 public static StoreEntry createFakeStoreEntry(File file, long ts) {
63 return new FakeStoreEntry(file, ts);
64 }
65
66 private StoreEntry(File file, File storeFile, long ts, String label) {
67 this.file = file;
68 this.storeFile = storeFile;
69 this.ts = ts;
70 this.label = label;
71 this.date = new Date (ts);
72 }
73
74 public File getStoreFile() {
75 return storeFile;
76 }
77
78 public File getFile() {
79 return file;
80 }
81
82 public long getTimestamp() {
83 return ts;
84 }
85
86 public String getLabel() {
87 return label != null ? label : "";
88 }
89
90 public Date getDate() {
91 return date;
92 }
93
94 public boolean representsFile() {
95 return storeFile.isFile();
96 }
97
98 public String getMIMEType() {
99 if(mimeType == null) {
100 FileObject fo = FileUtil.toFileObject(getFile());
101 if(fo != null) {
102 mimeType = fo.getMIMEType();
103 } else {
104 mimeType = "content/unknown";
105 }
106 }
107 return mimeType;
108 }
109
110 static OutputStream createStoreFileOutputSteam(File storeFile) throws FileNotFoundException , IOException {
112 ZipOutputStream zos = new ZipOutputStream (new BufferedOutputStream (new FileOutputStream (storeFile)));
113 ZipEntry entry = new ZipEntry (storeFile.getName());
114 zos.putNextEntry(entry);
115 return zos;
116 }
117
118 abstract OutputStream getStoreFileOutputStream() throws FileNotFoundException , IOException ;
119 public abstract InputStream getStoreFileInputStream() throws FileNotFoundException , IOException ;
120
121 private static class DefaultStoreEntry extends StoreEntry {
122
123 private DefaultStoreEntry(File file, File storeFile, long ts, String label) {
124 super(file, storeFile, ts, label);
125 }
126
127 OutputStream getStoreFileOutputStream() throws FileNotFoundException , IOException {
128 return createStoreFileOutputSteam(getStoreFile());
129 }
130
131 public InputStream getStoreFileInputStream() throws FileNotFoundException , IOException {
132 ZipInputStream zis = new ZipInputStream (new BufferedInputStream (new FileInputStream (getStoreFile())));
133 ZipEntry entry;
134 while ( (entry = zis.getNextEntry()) != null ) {
135 if( entry.getName().equals(getStoreFile().getName()) ) {
136 return zis;
137 }
138 }
139 throw new FileNotFoundException ();
140 }
141 }
142
143 private static class DeletedStoreEntry extends StoreEntry {
144 public DeletedStoreEntry(File file, long ts) {
145 super(file, null, ts, "");
146 }
147
148 OutputStream getStoreFileOutputStream() throws FileNotFoundException , IOException {
149 throwNoStoreEntry();
150 return null;
151 }
152
153 public InputStream getStoreFileInputStream() throws FileNotFoundException , IOException {
154 throwNoStoreEntry();
155 return null;
156 }
157
158 private void throwNoStoreEntry() throws FileNotFoundException {
159 throw new FileNotFoundException ("There is no store entry for file " + getFile() + " and timestamp " + getTimestamp());
160 }
161
162 }
163
164 private static class FakeStoreEntry extends StoreEntry {
165
166 public FakeStoreEntry(File file, long ts) {
167 super(file, file, ts, "");
168 }
169
170 OutputStream getStoreFileOutputStream() throws FileNotFoundException , IOException {
171 throw new FileNotFoundException ("There is no OutputStream for this for file " + getFile());
172 }
173
174 public InputStream getStoreFileInputStream() throws FileNotFoundException , IOException {
175 return new FileInputStream (getFile());
176 }
177 }
178 }
179 |
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