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
|
/*
* 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.sca.impl;
import java.io.Serializable;
import java.util.concurrent.Callable;
import org.apache.tuscany.sca.Node;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.ExtensionPointRegistryLocator;
import org.apache.tuscany.sca.core.UtilityExtensionPoint;
import org.apache.tuscany.sca.runtime.ActiveNodes;
public class RemoteCommand implements Callable<String>, Serializable {
private static final long serialVersionUID = 1L;
// all fields MUST be Serializable
private String domainName;
private String command;
private String contributionURI;
private String compositeURI;
public RemoteCommand(String domainName, String command, String contributionURI, String compositeURI) {
this.domainName = domainName;
this.command = command;
this.contributionURI = contributionURI;
this.compositeURI = compositeURI;
}
public String call() throws Exception {
String response;
try {
Node node = getNode();
if ("start".equals(command)) {
node.startComposite(contributionURI, compositeURI);
response = "Started.";
} else if ("stop".equals(command)) {
node.stopComposite(contributionURI, compositeURI);
response = "Stopped.";
} else {
response = "Unknown command: " + command;
}
} catch (Exception e) {
response = "REMOTE EXCEPTION: " + e.getClass() + ":" + e.getMessage();
}
return response;
}
private Node getNode() {
// TODO Several places in Tuscany need to do this type of thing, for example, processing
// async responses, so we need to design a "proper" way to do it
for (ExtensionPointRegistry xpr : ExtensionPointRegistryLocator.getExtensionPointRegistries()) {
ActiveNodes activeNodes = xpr.getExtensionPoint(UtilityExtensionPoint.class).getUtility(ActiveNodes.class);
for (Object o : activeNodes.getActiveNodes()) {
Node node = (Node)o;
if (node.getDomainName().equals(domainName)) {
return node;
}
}
}
throw new IllegalStateException("No remote Node found for domain: " + domainName);
}
}
|
