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 26 package java.net.http; 27 28 import java.net.URI; 29 import java.net.URISyntaxException; 30 import java.nio.Buffer; 31 import java.nio.ByteBuffer; 32 import java.util.Arrays; 33 34 final class WSUtils { 35 36 private WSUtils() { } 37 38 static final System.Logger logger = System.getLogger("java.net.http.WebSocket"); 39 static final ByteBuffer EMPTY_BYTE_BUFFER = ByteBuffer.allocate(0); 40 41 // 42 // Helps to trim long names (packages, nested/inner types) in logs/toString 43 // 44 static String toStringSimple(Object o) { 45 return o.getClass().getSimpleName() + "@" + 46 Integer.toHexString(System.identityHashCode(o)); 47 } 48 49 // 50 // 1. It adds a number of remaining bytes; 51 // 2. Standard Buffer-type toString for CharBuffer (since it adheres to the 52 // contract of java.lang.CharSequence.toString() which is both not too 53 // useful and not too private) 54 // 55 static String toString(Buffer b) { 56 return toStringSimple(b) 57 + "[pos=" + b.position() 58 + " lim=" + b.limit() 59 + " cap=" + b.capacity() 60 + " rem=" + b.remaining() + "]"; 61 } 62 63 static String toString(CharSequence s) { 64 return s == null 65 ? "null" 66 : toStringSimple(s) + "[len=" + s.length() + "]"; 67 } 68 69 static String dump(Object... objects) { 70 return Arrays.toString(objects); 71 } 72 73 static String webSocketSpecViolation(String section, String detail) { 74 return "RFC 6455 " + section + " " + detail; 75 } 76 }