01: /*
02: * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun in the LICENSE file that accompanied this code.
10: *
11: * This code is distributed in the hope that it will be useful, but WITHOUT
12: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14: * version 2 for more details (a copy is included in the LICENSE file that
15: * accompanied this code).
16: *
17: * You should have received a copy of the GNU General Public License version
18: * 2 along with this work; if not, write to the Free Software Foundation,
19: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package javax.tools;
27:
28: import java.util.ArrayList;
29: import java.util.Collections;
30: import java.util.List;
31:
32: /**
33: * Provides an easy way to collect diagnostics in a list.
34: *
35: * @param <S> the type of source objects used by diagnostics received
36: * by this object
37: *
38: * @author Peter von der Ahé
39: * @since 1.6
40: */
41: public final class DiagnosticCollector<S> implements
42: DiagnosticListener<S> {
43: private List<Diagnostic<? extends S>> diagnostics = Collections
44: .synchronizedList(new ArrayList<Diagnostic<? extends S>>());
45:
46: public void report(Diagnostic<? extends S> diagnostic) {
47: diagnostic.getClass(); // null check
48: diagnostics.add(diagnostic);
49: }
50:
51: /**
52: * Gets a list view of diagnostics collected by this object.
53: *
54: * @return a list view of diagnostics
55: */
56: public List<Diagnostic<? extends S>> getDiagnostics() {
57: return Collections.unmodifiableList(diagnostics);
58: }
59: }
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