Diagnostics.java revision 3170:dc017a37aac5 
1/*
2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24package tools.javac.combo;
25
26import javax.tools.Diagnostic;
27import javax.tools.JavaFileObject;
28import java.util.ArrayList;
29import java.util.List;
30
31import static java.util.stream.Collectors.toList;
32
33/**
34* A container for compiler diagnostics, separated into errors and warnings,
35 * used by JavacTemplateTestBase.
36 *
37 * @author Brian Goetz
38*/
39public class Diagnostics implements javax.tools.DiagnosticListener<JavaFileObject> {
40
41    protected List<Diagnostic<? extends JavaFileObject>> diags = new ArrayList<>();
42    protected boolean foundErrors = false;
43
44    public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
45        diags.add(diagnostic);
46        foundErrors = foundErrors || diagnostic.getKind() == Diagnostic.Kind.ERROR;
47    }
48
49    /** Were there any errors found? */
50    public boolean errorsFound() {
51        return foundErrors;
52    }
53
54    /** Get all diagnostic keys */
55    public List<String> keys() {
56        return diags.stream()
57                    .map(Diagnostic::getCode)
58                    .collect(toList());
59    }
60
61    /** Do the diagnostics contain the specified error key? */
62    public boolean containsErrorKey(String key) {
63        return diags.stream()
64                    .filter(d -> d.getKind() == Diagnostic.Kind.ERROR)
65                    .anyMatch(d -> d.getCode().equals(key));
66    }
67
68    /** Get the error keys */
69    public List<String> errorKeys() {
70        return diags.stream()
71                    .filter(d -> d.getKind() == Diagnostic.Kind.ERROR)
72                    .map(Diagnostic::getCode)
73                    .collect(toList());
74    }
75
76    public String toString() { return keys().toString(); }
77
78    /** Clear all diagnostic state */
79    public void reset() {
80        diags.clear();
81        foundErrors = false;
82    }
83}
84