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1 package org.exoplatform.services.xml.querying.impl.xtas;
2
3 import org.exoplatform.services.xml.querying.UniFormTransformationException;
4 import org.xml.sax.InputSource  ;
5 import java.io.SequenceInputStream ;
6 import java.io.ByteArrayInputStream ;
7 import java.util.Enumeration ;
8 import java.util.Properties ;
9
10
13 public class UniFormConverter {
14
15
18 public static WellFormedUniFormTree toWellForm(UniFormTree tree) throws UniFormTransformationException
19 {
20
21 if (tree instanceof WellFormedUniFormTree)
22 return (WellFormedUniFormTree)tree;
23 else if (tree instanceof UniFormTreeFragment) {
24
25 WellFormedUniFormTree wfTree = new WellFormedUniFormTree();
26 wfTree.init( new InputSource (tree.getAsInputStream()) );
27 return wfTree;
28
29 }
30 else
31 throw new UniFormTransformationException( "The type "+tree.getClass().getName()+
32 " is not transformable to WellFormedUniFormTree! ");
33 }
34
35
39 public static WellFormedUniFormTree toWellForm(UniFormTree tree, String rootName) throws UniFormTransformationException
40 {
41
42 if ( (tree instanceof WellFormedUniFormTree) || (tree instanceof UniFormTreeFragment) ) {
43
44 WellFormedUniFormTree wfTree = new WellFormedUniFormTree();
45 SequenceInputStream s = new SequenceInputStream (
46 new ByteArrayInputStream ( ("<"+rootName+">").getBytes() ), tree.getAsInputStream() );
47 s = new SequenceInputStream (
48 s, new ByteArrayInputStream ( ("</"+rootName+">").getBytes() ) );
49
50 wfTree.init( new InputSource (s) );
51 return wfTree;
52 }
53 else
54 throw new UniFormTransformationException( "The type "+tree.getClass().getName()+
55 " is not transformable to WellFormedUniFormTree! ");
56
57 }
58
59
63 public static WellFormedUniFormTree toWellForm(UniFormTree tree, String rootName, String namespaceURI, Properties attrs) throws UniFormTransformationException
64 {
65 if ( (tree instanceof WellFormedUniFormTree) || (tree instanceof UniFormTreeFragment) ) {
66
67 WellFormedUniFormTree wfTree = new WellFormedUniFormTree();
68 String attributes = "";
69 for (Enumeration e = attrs.propertyNames(); e.hasMoreElements() ;) {
70 String name = (String )e.nextElement();
71 attributes+=name+"=\""+attrs.getProperty(name)+"\" ";
72 }
73 String str = "<"+rootName+" "+namespaceURI+" "+attributes+">";
74 SequenceInputStream s = new SequenceInputStream (
75 new ByteArrayInputStream ( str.getBytes() ), tree.getAsInputStream() );
76 s = new SequenceInputStream (
77 s, new ByteArrayInputStream ( ("</"+rootName+">").getBytes() ) );
78
79 wfTree.init( new InputSource (s) );
80 return wfTree;
81 }
82 else
83 throw new UniFormTransformationException( "The type "+tree.getClass().getName()+
84 " is not transformable to WellFormedUniFormTree! ");
85
86 }
87
88
91 public static UniFormTreeFragment toFragment(UniFormTree tree) throws UniFormTransformationException
92 {
93 if (tree instanceof UniFormTreeFragment)
94 return (UniFormTreeFragment)tree;
95 else if (tree instanceof WellFormedUniFormTree) {
96
97 UniFormTreeFragment fragment = new UniFormTreeFragment();
98 fragment.init( tree.getAsInputStream() );
99 return fragment;
100
101 }
102 else
103 throw new UniFormTransformationException( "The type "+tree.getClass().getName()+
104 " is not transformable to UniFormTreeFragment! ");
105
106 }
107 }
108 |
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