blob: 6fa426b2f8e1bbabed8a092752adb4ca3a69aab1 (
plain)
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
|
/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tuscany.model.scdl.loader.impl;
import java.io.IOException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import org.apache.tuscany.model.scdl.ComponentType;
import org.apache.tuscany.model.scdl.Module;
import org.apache.tuscany.model.scdl.ModuleFragment;
import org.apache.tuscany.model.scdl.ScdlFactory;
import org.apache.tuscany.model.scdl.Subsystem;
import org.apache.tuscany.model.scdl.impl.ScdlPackageImpl;
import org.apache.tuscany.sdo.util.DataObjectUtil;
import org.apache.tuscany.sdo.util.SDOUtil;
import org.eclipse.emf.ecore.resource.impl.ResourceSetImpl;
import commonj.sdo.helper.XMLDocument;
import commonj.sdo.helper.XMLHelper;
/**
*/
public class SCDLXMLReader extends ResourceSetImpl {
private Map<String, Object> cache=new HashMap<String, Object>();
// Initialize the SDO runtime and register the SCDL model
static {
DataObjectUtil.initRuntime();
SDOUtil.registerStaticTypes(ScdlFactory.class);
}
/**
* Constructor
*/
public SCDLXMLReader() {
}
/**
* Returns an SCDL module.
* @param uri
* @return
*/
public Module getModule(String uri) {
return (Module)getRootObject(uri);
}
/**
* Returns an SCDL module fragment.
* @param uri
* @return
*/
public ModuleFragment getModuleFragment(String uri) {
return (ModuleFragment)getRootObject(uri);
}
/**
* Returns an SCDL component type.
* @param uri
* @return
*/
public ComponentType getComponentType(String uri) {
return (ComponentType)getRootObject(uri);
}
/**
* Returns an SCDL subsystem.
* @param uri
* @return
*/
public Subsystem getSubsystem(String uri) {
return (Subsystem)getRootObject(uri);
}
/**
* Returns the root object at the given URI.
* @param uri
* @return
*/
private Object getRootObject(String uri) {
Object object = cache.get(uri);
if (object==null) {
try {
XMLDocument document=XMLHelper.INSTANCE.load(new URL(uri).openStream());
return document.getRootObject();
} catch (IOException e) {
throw new RuntimeException(uri, e);
}
}
return object;
}
}
|
