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1
4 package com.openedit.store;
5
6 import java.io.File  ;
7 import java.io.FileInputStream ;
8 import java.io.FileOutputStream ;
9 import java.io.IOException ;
10
11 import org.dom4j.Document;
12 import org.dom4j.DocumentHelper;
13 import org.dom4j.Element;
14 import org.dom4j.io.OutputFormat;
15 import org.dom4j.io.SAXReader;
16 import org.dom4j.io.XMLWriter;
17
18 import com.openedit.util.FileUtils;
19
20
24 public abstract class AbstractXmlOrderArchive extends BaseOrderArchive
25 {
26
27 protected void writeXmlFile( Element inRoot, File inFile ) throws StoreException
28 {
29 File tempFile = new File ( inFile.getParentFile(), inFile.getName() + ".temp" );
31
32 inFile.getParentFile().mkdirs();
33 FileOutputStream fos = null;
34 try
35 {
36 fos = new FileOutputStream ( tempFile );
37 XMLWriter writer = new XMLWriter( fos, OutputFormat.createPrettyPrint() );
38 writer.write( inRoot );
39 }
40 catch( IOException e )
41 {
42 throw new StoreException( e );
43 }
44 finally
45 {
46 FileUtils.safeClose( fos );
47 }
48
49 inFile.delete();
50 if ( !tempFile.renameTo(inFile) )
51 {
52 throw new StoreException( "Unable to rename " + tempFile + " to " + inFile );
53 }
54 }
55
56 protected Element getRootElement( File inFile, String inElementName ) throws StoreException
57 {
58 if ( inFile.exists() )
59 {
60 SAXReader reader = new SAXReader();
61 Document document;
62 FileInputStream stream = null;
63 try
64 {
65 stream = new FileInputStream (inFile);
66 document = reader.read(stream);
67 return document.getRootElement();
68 }
69 catch( Exception e )
70 {
71 throw new StoreException( e );
72 }
73 finally
74 {
75 if ( stream != null )
76 {
77 try
78 {
79 stream.close();
80 }
81 catch ( IOException e )
82 {
83 throw new StoreException( e );
84 }
85 }
86 }
87 }
88 else
89 {
90 return DocumentHelper.createElement( inElementName );
91 }
92 }
93
94 protected File getOrdersDirectory( Store inStore )
95 {
96 return new File ( inStore.getStoreDirectory(), "orders" );
97 }
98
99
100 }
101 |
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