1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.tools.layoutlib.create;
18
19import java.io.PrintWriter;
20import java.io.StringWriter;
21
22public class Log {
23
24    private boolean mVerbose = false;
25
26    public void setVerbose(boolean verbose) {
27        mVerbose = verbose;
28    }
29
30    public void debug(String format, Object... args) {
31        if (mVerbose) {
32            info(format, args);
33        }
34    }
35
36    /** Similar to debug() but doesn't do a \n automatically. */
37    public void debugNoln(String format, Object... args) {
38        if (mVerbose) {
39            String s = String.format(format, args);
40            System.out.print(s);
41        }
42    }
43
44    public void info(String format, Object... args) {
45        String s = String.format(format, args);
46        outPrintln(s);
47    }
48
49    public void error(String format, Object... args) {
50        String s = String.format(format, args);
51        errPrintln(s);
52    }
53
54    public void exception(Throwable t, String format, Object... args) {
55        StringWriter sw = new StringWriter();
56        PrintWriter pw = new PrintWriter(sw);
57        t.printStackTrace(pw);
58        pw.flush();
59        error(format + "\n" + sw.toString(), args);
60    }
61
62    /** for unit testing */
63    protected void errPrintln(String msg) {
64        System.err.println(msg);
65    }
66
67    /** for unit testing */
68    protected void outPrintln(String msg) {
69        System.out.println(msg);
70    }
71
72}
73