19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.net.http; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.apache.http.util.CharArrayBuffer; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.apache.http.protocol.HTTP; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Utility methods for working on CharArrayBuffers. 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectclass CharArrayBuffers { 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final char uppercaseAddon = 'a' - 'A'; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns true if the buffer contains the given string. Ignores leading 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * whitespace and case. 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param buffer to search 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param beginIndex index at which we should start 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param str to search for 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static boolean containsIgnoreCaseTrimmed(CharArrayBuffer buffer, 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int beginIndex, final String str) { 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int len = buffer.length(); 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] chars = buffer.buffer(); 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (beginIndex < len && HTTP.isWhitespace(chars[beginIndex])) { 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project beginIndex++; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = str.length(); 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean ok = len >= beginIndex + size; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j=0; ok && (j<size); j++) { 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char a = chars[beginIndex+j]; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char b = str.charAt(j); 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (a != b) { 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a = toLower(a); 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project b = toLower(b); 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = a == b; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ok; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns index of first occurence ch. Lower cases characters leading up 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to first occurrence of ch. 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int setLowercaseIndexOf(CharArrayBuffer buffer, final int ch) { 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int beginIndex = 0; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int endIndex = buffer.length(); 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] chars = buffer.buffer(); 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = beginIndex; i < endIndex; i++) { 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char current = chars[i]; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (current == ch) { 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return i; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (current >= 'A' && current <= 'Z'){ 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // make lower case 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project current += uppercaseAddon; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project chars[i] = current; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static char toLower(char c) { 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (c >= 'A' && c <= 'Z'){ 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c += uppercaseAddon; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return c; 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 90