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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
package org.eclipse.jst.jsf.facelet.core.internal.registry.taglib;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.eclipse.core.runtime.URIUtil;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.ContentHandler;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.URIConverter;
import org.eclipse.emf.ecore.resource.URIHandler;
import org.eclipse.emf.ecore.resource.impl.ExtensibleURIConverterImpl;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import org.eclipse.emf.ecore.resource.impl.URIHandlerImpl;
import org.eclipse.emf.ecore.util.BasicExtendedMetaData;
import org.eclipse.emf.ecore.util.ExtendedMetaData;
import org.eclipse.emf.ecore.xmi.XMLResource;
import org.eclipse.jst.jsf.facelet.core.internal.FaceletCorePlugin;
import org.eclipse.jst.jsf.facelet.core.internal.registry.taglib.faceletTaglib.DocumentRoot;
import org.eclipse.jst.jsf.facelet.core.internal.registry.taglib.faceletTaglib.FaceletTaglib;
import org.eclipse.jst.jsf.facelet.core.internal.registry.taglib.faceletTaglib.FaceletTaglibPackage;
import org.eclipse.jst.jsf.facelet.core.internal.registry.taglib.faceletTaglib.util.FaceletTaglibResourceFactoryImpl;
import org.eclipse.wst.xml.core.internal.XMLCorePlugin;
import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalog;
import org.eclipse.wst.xml.core.internal.catalog.provisional.ICatalogEntry;
import org.eclipse.wst.xml.core.internal.catalog.provisional.INextCatalog;
/**
* Loads the facelet taglib file model using EMF.
*
* @author cbateman
*
*/
public class TagModelLoader
{
private final ResourceSetImpl _resSet;
private final String _resourceUri;
private DocumentRoot _docRoot;
private FaceletTaglib _faceletTaglib;
private final static List<URIHandler> DEFAULT_URI_HANDLERS;
static
{
final List<URIHandler> handlers = new ArrayList<URIHandler>();
final URIHandler handleFacelet = new DefaultFaceletURIHandler();
handlers.add(handleFacelet);
handlers.addAll(URIHandler.DEFAULT_HANDLERS);
DEFAULT_URI_HANDLERS = handlers;
}
/**
* @param resourceUri
*/
public TagModelLoader(final String resourceUri)
{
this(resourceUri, new ExtensibleURIConverterImpl(DEFAULT_URI_HANDLERS,
ContentHandler.Registry.INSTANCE.contentHandlers()));
}
/**
* @param resourceUri
* @param uriConverter
*/
public TagModelLoader(final String resourceUri,
final URIConverter uriConverter)
{
_resourceUri = resourceUri;
_resSet = new ResourceSetImpl();
_resSet.getPackageRegistry().put("http://java.sun.com/xml/ns/javaee", //$NON-NLS-1$
FaceletTaglibPackage.eINSTANCE);
_resSet.getPackageRegistry().put(
"http://java.sun.com/xml/ns/javaee/web-facelettaglibrary.xsd", //$NON-NLS-1$
FaceletTaglibPackage.eINSTANCE);
_resSet.setURIConverter(uriConverter);
final ExtendedMetaData extendedMetaData = new BasicExtendedMetaData(
_resSet.getPackageRegistry());
_resSet.getLoadOptions().put(XMLResource.OPTION_EXTENDED_META_DATA,
extendedMetaData);
_resSet.getResourceFactoryRegistry().getExtensionToFactoryMap()
.put("xml", new FaceletTaglibResourceFactoryImpl()); //$NON-NLS-1$
}
/**
* @param is
* @throws Exception
*/
public void loadFromInputStream(final InputStream is) throws Exception
{
final Resource res = _resSet.createResource(URI
.createFileURI(_resourceUri));
if (res != null)
{
res.load(is, Collections.EMPTY_MAP);
final EObject eObject = res.getContents().get(0);
_docRoot = (DocumentRoot) eObject;
_faceletTaglib = _docRoot.getFaceletTaglib();
} else
{
// This is often caused if the extension of the file pointed to
// by _resourceUri wasn't initialized in extensionToFactoryMap.
throw new IllegalArgumentException("Could not create Resource"); //$NON-NLS-1$
}
}
/**
* @param os
* @throws Exception
*/
public void save(final OutputStream os) throws Exception
{
final Resource res = _resSet.createResource(URI
.createFileURI(_resourceUri));
if (res != null)
{
res.getContents().add(_docRoot);
res.save(os, Collections.EMPTY_MAP);
} else
{
throw new IllegalArgumentException("Could not create Resource"); //$NON-NLS-1$
}
}
/**
* @param faceletTaglib
*/
public final void setTaglib(final FaceletTaglib faceletTaglib)
{
_faceletTaglib = faceletTaglib;
}
/**
* @param docRoot
*/
public final void setDocRoot(final DocumentRoot docRoot)
{
_docRoot = docRoot;
}
/**
* @return the taglib or null if none has been loaded.
*/
public FaceletTaglib getTaglib()
{
return _faceletTaglib;
}
/**
* @return the doc root or null if none has been loaded.
*/
public DocumentRoot getDocRoot()
{
return _docRoot;
}
/**
* Handles facelet taglib dtd resolver requests
*
*/
private static final class DefaultFaceletURIHandler extends URIHandlerImpl
{
@Override
public boolean canHandle(final URI uri)
{
return "http://java.sun.com/dtd/facelet-taglib_1_0.dtd".equals(uri.toString()); //$NON-NLS-1$
}
@Override
public InputStream createInputStream(final URI uri, final Map<?, ?> options)
throws IOException
{
try
{
return findFaceletDtdInCatalog();
} catch (final URISyntaxException e)
{
FaceletCorePlugin.log(
"While trying to load facelet dtd from catalog", e); //$NON-NLS-1$
// fall through
}
return null;
}
private InputStream findFaceletDtdInCatalog() throws URISyntaxException, IOException
{
final ICatalog xmlCatalog = XMLCorePlugin.getDefault()
.getDefaultXMLCatalog();
if (xmlCatalog != null)
{
ICatalog systemCatalog = null;
final INextCatalog[] nextCatalogs = xmlCatalog.getNextCatalogs();
for (final INextCatalog catalog : nextCatalogs)
{
final ICatalog referencedCatalog = catalog
.getReferencedCatalog();
if (referencedCatalog != null)
{
if (XMLCorePlugin.SYSTEM_CATALOG_ID
.equals(referencedCatalog.getId()))
{
systemCatalog = referencedCatalog;
}
}
}
if (systemCatalog != null)
{
ICatalogEntry foundEntry = null;
for (final ICatalogEntry entry : systemCatalog.getCatalogEntries())
{
if ("-//Sun Microsystems, Inc.//DTD Facelet Taglib 1.0//EN" //$NON-NLS-1$
.equals(entry.getKey()))
{
foundEntry = entry;
break;
}
}
if (foundEntry != null)
{
final java.net.URI uri = URIUtil.fromString(foundEntry.getURI());
final URL url = URIUtil.toURL(uri);
return url.openStream();
}
}
}
return null;
}
}
}
|
