01: /*
02:
03: * <copyright>
04: *
05: * Copyright 2002-2007 BBNT Solutions, LLC
06: * under sponsorship of the Defense Advanced Research Projects
07: * Agency (DARPA).
08: *
09: * You can redistribute this software and/or modify it under the
10: * terms of the Cougaar Open Source License as published on the
11: * Cougaar Open Source Website (www.cougaar.org).
12: *
13: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
14: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
15: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
16: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
17: * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
19: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24: *
25: * </copyright>
26:
27: */
28:
29: package org.cougaar.qos.qrs;
30:
31: /**
32: * A ResourceContext for a Class.
33: */
34: public class ClassDS extends ResourceContext {
35: static void register() {
36: ContextInstantiater cinst = new AbstractContextInstantiater() {
37: public ResourceContext instantiateContext(
38: String[] parameters, ResourceContext parent)
39: throws ResourceContext.ParameterError {
40: return new ClassDS(parameters, parent);
41: }
42:
43: };
44: registerContextInstantiater("Class", cinst);
45: }
46:
47: private static final String CLASS_NAME = "ClassName";
48: private static final String INTERFACE_NAME = "InterfaceName";
49: private static final String METHODS = "Methods";
50:
51: // Host Classes can be the first element in a path. They have
52: // no parent or context other than the root.
53: protected ResourceContext preferredParent(RSS root) {
54: return root;
55: }
56:
57: protected DataFormula instantiateFormula(String kind) {
58: return null;
59: }
60:
61: /**
62: * The parameters should contain one string, the name of the class
63: */
64: protected void verifyParameters(String[] parameters)
65: throws ParameterError {
66: if (parameters == null || parameters.length < 2) {
67: throw new ParameterError(
68: "ClassDS: wrong number of parameters");
69: } else {
70: bindSymbolValue(CLASS_NAME, parameters[0]);
71: bindSymbolValue(INTERFACE_NAME, parameters[1]);
72: ResourceContext[] methods = new ResourceContext[parameters.length - 2];
73: // The rest of the parameters are method names
74: for (int i = 2; i < parameters.length; i++) {
75: // Make a context for the method name
76: String[] params = { parameters[i] };
77: methods[i - 2] = resolveSpec("Method", params);
78: }
79: bindSymbolValue(METHODS, methods);
80:
81: // For testing deflection
82: bindSymbolValue("Foo", new Double(10.0));
83: }
84: }
85:
86: private ClassDS(String[] parameters, ResourceContext parent)
87: throws ParameterError {
88: super(parameters, parent);
89: }
90:
91: }
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