1 /* 2 * Copyright (c) 2015, 2016, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package jdk.incubator.http.internal.hpack; 26 27 import java.io.IOException; 28 import java.io.UncheckedIOException; 29 import java.nio.ByteBuffer; 30 31 // 32 // Custom implementation of ISO/IEC 8859-1:1998 33 // 34 // The rationale behind this is not to deal with CharsetEncoder/CharsetDecoder, 35 // basically because it would require wrapping every single CharSequence into a 36 // CharBuffer and then copying it back. 37 // 38 // But why not to give a CharBuffer instead of Appendable? Because I can choose 39 // an Appendable (e.g. StringBuilder) that adjusts its length when needed and 40 // therefore not to deal with pre-sized CharBuffers or copying. 41 // 42 // The encoding is simple and well known: 1 byte <-> 1 char 43 // 44 final class ISO_8859_1 { 45 46 private ISO_8859_1() { } 47 48 public static final class Reader { 49 50 public void read(ByteBuffer source, Appendable destination) { 51 for (int i = 0, len = source.remaining(); i < len; i++) { 52 char c = (char) (source.get() & 0xff); 53 try { 54 destination.append(c); 55 } catch (IOException e) { 56 throw new UncheckedIOException 57 ("Error appending to the destination", e); 58 } 59 } 60 } 61 62 public Reader reset() { 63 return this; 64 } 65 } 66 67 public static final class Writer { 68 69 private CharSequence source; 70 private int pos; 71 private int end; 72 73 public Writer configure(CharSequence source, int start, int end) { 74 this.source = source; 75 this.pos = start; 76 this.end = end; 77 return this; | 1 /* 2 * Copyright (c) 2015, 2017, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package jdk.incubator.http.internal.hpack; 26 27 import java.io.IOException; 28 import java.nio.ByteBuffer; 29 30 // 31 // Custom implementation of ISO/IEC 8859-1:1998 32 // 33 // The rationale behind this is not to deal with CharsetEncoder/CharsetDecoder, 34 // basically because it would require wrapping every single CharSequence into a 35 // CharBuffer and then copying it back. 36 // 37 // But why not to give a CharBuffer instead of Appendable? Because I can choose 38 // an Appendable (e.g. StringBuilder) that adjusts its length when needed and 39 // therefore not to deal with pre-sized CharBuffers or copying. 40 // 41 // The encoding is simple and well known: 1 byte <-> 1 char 42 // 43 final class ISO_8859_1 { 44 45 private ISO_8859_1() { } 46 47 public static final class Reader { 48 49 public void read(ByteBuffer source, Appendable destination) 50 throws IOException { 51 for (int i = 0, len = source.remaining(); i < len; i++) { 52 char c = (char) (source.get() & 0xff); 53 try { 54 destination.append(c); 55 } catch (IOException e) { 56 throw new IOException( 57 "Error appending to the destination", e); 58 } 59 } 60 } 61 62 public Reader reset() { 63 return this; 64 } 65 } 66 67 public static final class Writer { 68 69 private CharSequence source; 70 private int pos; 71 private int end; 72 73 public Writer configure(CharSequence source, int start, int end) { 74 this.source = source; 75 this.pos = start; 76 this.end = end; 77 return this; |