1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
package com.c2kernel.persistency;
import java.io.File;
import java.util.ArrayList;
import com.c2kernel.entity.C2KLocalObject;
import com.c2kernel.lookup.EntityPath;
import com.c2kernel.lookup.InvalidEntityPathException;
import com.c2kernel.persistency.outcome.Outcome;
import com.c2kernel.process.Gateway;
import com.c2kernel.utils.CastorXMLUtility;
import com.c2kernel.utils.FileStringUtility;
import com.c2kernel.utils.Logger;
public class XMLClusterStorage extends ClusterStorage {
String rootDir=null;
public XMLClusterStorage() {
}
public void open() throws ClusterStorageException {
String rootProp = Gateway.getProperty("XMLStorage.root");
if (rootProp == null)
throw new ClusterStorageException("XMLClusterStorage.open() - Root path not given in config file.");
rootDir = new File(rootProp).getAbsolutePath();
if( !FileStringUtility.checkDir( rootDir ) ) {
Logger.error("XMLClusterStorage.open() - Path " + rootDir + "' does not exist. Attempting to create.");
boolean success = FileStringUtility.createNewDir(rootDir);
if (!success) throw new ClusterStorageException("XMLClusterStorage.open() - Could not create dir "+ rootDir +". Cannot continue.");
}
}
public void close() {
rootDir = null;
}
// introspection
public short queryClusterSupport(String clusterType) {
return ClusterStorage.READWRITE;
}
public String getName() {
return "XML File Cluster Storage";
}
public String getId() {
return "XML";
}
/* object manipulation */
// retrieve object by path
public C2KLocalObject get(Integer sysKey, String path) throws ClusterStorageException {
try {
String type = ClusterStorage.getClusterType(path);
String filePath = getFilePath(sysKey, path)+".xml";
String objString = FileStringUtility.file2String(filePath);
if (objString.length() == 0) return null;
if (type.equals("Outcome"))
return new Outcome(path, objString);
else
return (C2KLocalObject)CastorXMLUtility.unmarshall(objString);
} catch (Exception e) {
Logger.msg(3,"XMLClusterStorage.get() - The path "+path+" from "+sysKey+" does not exist.: "+e.getMessage());
}
return null;
}
// store object by path
public void put(Integer sysKey, C2KLocalObject obj) throws ClusterStorageException {
try {
String filePath = getFilePath(sysKey, getPath(obj)+".xml");
Logger.msg(7, "Writing "+filePath);
String data = CastorXMLUtility.marshall(obj);
String dir = filePath.substring(0, filePath.lastIndexOf('/'));
if( !FileStringUtility.checkDir( dir ) ) {
boolean success = FileStringUtility.createNewDir(dir);
if (!success) throw new ClusterStorageException("XMLClusterStorage.put() - Could not create dir "+ dir +". Cannot continue.");
}
FileStringUtility.string2File(filePath, data);
} catch (Exception e) {
Logger.error(e);
throw new ClusterStorageException("XMLClusterStorage.put() - Could not write "+getPath(obj)+" to "+sysKey);
}
}
// delete cluster
public void delete(Integer sysKey, String path) throws ClusterStorageException {
try {
String filePath = getFilePath(sysKey, path+".xml");
boolean success = FileStringUtility.deleteDir(filePath, true, true);
if (success) return;
filePath = getFilePath(sysKey, path);
success = FileStringUtility.deleteDir(filePath, true, true);
if (success) return;
} catch(Exception e) { }
throw new ClusterStorageException("XMLClusterStorage.delete() - Failure deleting path "+path+" in "+sysKey);
}
/* navigation */
// directory listing
public String[] getClusterContents(Integer sysKey, String path) throws ClusterStorageException {
String[] result = new String[0];
try {
String filePath = getFilePath(sysKey, path);
ArrayList paths = FileStringUtility.listDir( filePath, true, false );
if (paths == null) return result; // dir doesn't exist yet
ArrayList contents = new ArrayList();
String previous = null;
for (int i=0; i<paths.size(); i++) {
String next = (String)paths.get(i);
// trim off the xml from the end if it's there
if (next.endsWith(".xml")) next = next.substring(0, next.length()-4);
// avoid duplicates (xml and dir)
if (next.equals(previous)) continue;
previous = next;
// only keep the last bit of the path
if (next.indexOf('/') > -1) next = next.substring(next.lastIndexOf('/')+1);
contents.add(next);
}
result = (String[])contents.toArray(result);
return result;
} catch (Exception e) {
Logger.error(e);
throw new ClusterStorageException("XMLClusterStorage.getClusterContents() - Could not get contents of "+path+" from "+sysKey+": "+e.getMessage());
}
}
protected String getFilePath(Integer sysKey, String path) throws InvalidEntityPathException {
EntityPath thisEntity = new EntityPath(sysKey.intValue());
if (path.length() == 0 || path.charAt(0) != '/') path = "/"+path;
String filePath = rootDir+thisEntity.toString()+path;
Logger.msg(8, "XMLClusterStorage.getFilePath() - "+filePath);
return filePath;
}
}
|
