com.squareup.okhttp.internal.http.HeaderParser Maven / Gradle / Ivy
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.squareup.okhttp.internal.http;
public final class HeaderParser {
/**
* Returns the next index in {@code input} at or after {@code pos} that
* contains a character from {@code characters}. Returns the input length if
* none of the requested characters can be found.
*/
public static int skipUntil(String input, int pos, String characters) {
for (; pos < input.length(); pos++) {
if (characters.indexOf(input.charAt(pos)) != -1) {
break;
}
}
return pos;
}
/**
* Returns the next non-whitespace character in {@code input} that is white
* space. Result is undefined if input contains newline characters.
*/
public static int skipWhitespace(String input, int pos) {
for (; pos < input.length(); pos++) {
char c = input.charAt(pos);
if (c != ' ' && c != '\t') {
break;
}
}
return pos;
}
/**
* Returns {@code value} as a positive integer, or 0 if it is negative, or
* {@code defaultValue} if it cannot be parsed.
*/
public static int parseSeconds(String value, int defaultValue) {
try {
long seconds = Long.parseLong(value);
if (seconds > Integer.MAX_VALUE) {
return Integer.MAX_VALUE;
} else if (seconds < 0) {
return 0;
} else {
return (int) seconds;
}
} catch (NumberFormatException e) {
return defaultValue;
}
}
private HeaderParser() {
}
}