Package: NewlineOutputStream

NewlineOutputStream

name	instruction	branch	complexity	line	method
NewlineOutputStream(OutputStream)	M: 5 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 2 C: 0 0%	M: 1 C: 0 0%
NewlineOutputStream(OutputStream, boolean)	M: 13 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 5 C: 0 0%	M: 1 C: 0 0%
flush()	M: 30 C: 0 0%	M: 6 C: 0 0%	M: 4 C: 0 0%	M: 9 C: 0 0%	M: 1 C: 0 0%
static {...}	M: 18 C: 0 0%	M: 4 C: 0 0%	M: 3 C: 0 0%	M: 8 C: 0 0%	M: 1 C: 0 0%
write(byte[])	M: 7 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 2 C: 0 0%	M: 1 C: 0 0%
write(byte[], int, int)	M: 15 C: 0 0%	M: 2 C: 0 0%	M: 2 C: 0 0%	M: 3 C: 0 0%	M: 1 C: 0 0%
write(int)	M: 43 C: 0 0%	M: 6 C: 0 0%	M: 4 C: 0 0%	M: 11 C: 0 0%	M: 1 C: 0 0%

Coverage

1: /*
2: * Copyright (c) 1997, 2023 Oracle and/or its affiliates. All rights reserved.
3: *
4: * This program and the accompanying materials are made available under the
5: * terms of the Eclipse Public License v. 2.0, which is available at
6: * http://www.eclipse.org/legal/epl-2.0.
7: *
8: * This Source Code may also be made available under the following Secondary
9: * Licenses when the conditions for such availability set forth in the
10: * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
11: * version 2 with the GNU Classpath Exception, which is available at
12: * https://www.gnu.org/software/classpath/license.html.
13: *
14: * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
15: */
16:
17: package org.eclipse.angus.mail.mbox;
18:
19: import java.io.*;
20: import java.nio.charset.StandardCharsets;
21:
22: /**
23: * Convert the various newline conventions to the local platform's
24: * newline convention. Optionally, make sure the output ends with
25: * a blank line.
26: */
27: public class NewlineOutputStream extends FilterOutputStream {
28: private int lastb = -1;
29: private int bol = 1; // number of times in a row we're at beginning of line
30: private final boolean endWithBlankLine;
31: private static final byte[] newline;
32:
33: static {
34:         String s = null;
35:         try {
36:          s = System.lineSeparator();
37:         } catch (SecurityException sex) {
38:          // ignore, should never happen
39:         }
40:•        if (s == null || s.length() <= 0)
41:          s = "\n";
42:         newline = s.getBytes(StandardCharsets.ISO_8859_1);
43: }
44:
45: public NewlineOutputStream(OutputStream os) {
46:         this(os, false);
47: }
48:
49: public NewlineOutputStream(OutputStream os, boolean endWithBlankLine) {
50:         super(os);
51:         this.endWithBlankLine = endWithBlankLine;
52: }
53:
54: public void write(int b) throws IOException {
55:•        if (b == '\r') {
56:          out.write(newline);
57:          bol++;
58:•        } else if (b == '\n') {
59:•         if (lastb != '\r') {
60:                 out.write(newline);
61:                 bol++;
62:          }
63:         } else {
64:          out.write(b);
65:          bol = 0;        // no longer at beginning of line
66:         }
67:         lastb = b;
68: }
69:
70: public void write(byte b[]) throws IOException {
71:         write(b, 0, b.length);
72: }
73:
74: public void write(byte b[], int off, int len) throws IOException {
75:•        for (int i = 0 ; i < len ; i++) {
76:          write(b[off + i]);
77:         }
78: }
79:
80: public void flush() throws IOException {
81:•        if (endWithBlankLine) {
82:•         if (bol == 0) {
83:                 // not at bol, return to bol and add a blank line
84:                 out.write(newline);
85:                 out.write(newline);
86:•         } else if (bol == 1) {
87:                 // at bol, add a blank line
88:                 out.write(newline);
89:          }
90:         }
91:         bol = 2;
92:         out.flush();
93: }
94: }