blob: cda196590ccd5dd4eba42a5020328c13a8bc0e9f (
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
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.container.script.helper;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import javax.xml.namespace.QName;
import org.apache.tuscany.spi.annotation.Autowire;
import org.apache.tuscany.spi.extension.LoaderExtension;
import org.apache.tuscany.spi.loader.LoaderException;
import org.apache.tuscany.spi.loader.LoaderRegistry;
import org.apache.tuscany.spi.loader.MissingResourceException;
import org.osoa.sca.annotations.Constructor;
/**
* Loader for handling implementation.script elements.
*
* <implementation.script script="path/foo.py" class="myclass">
*
*/
public abstract class ScriptHelperImplementationLoader extends LoaderExtension<ScriptHelperImplementation> {
@Constructor( { "registry" })
public ScriptHelperImplementationLoader(@Autowire LoaderRegistry registry) {
super(registry);
}
public abstract QName getXMLType();
protected String loadSource(ClassLoader cl, String resource) throws LoaderException {
URL url = cl.getResource(resource);
if (url == null) {
throw new MissingResourceException(resource);
}
InputStream is;
try {
is = url.openStream();
} catch (IOException e) {
MissingResourceException mre = new MissingResourceException(resource, e);
mre.setIdentifier(resource);
throw mre;
}
try {
Reader reader = new InputStreamReader(is, "UTF-8");
char[] buffer = new char[1024];
StringBuilder source = new StringBuilder();
int count;
while ((count = reader.read(buffer)) > 0) {
source.append(buffer, 0, count);
}
return source.toString();
} catch (IOException e) {
LoaderException le = new LoaderException(e);
le.setIdentifier(resource);
throw le;
} finally {
try {
is.close();
} catch (IOException e) {
// ignore
}
}
}
}
|
