Here you can find the source of isAbsoluteURI(String uri)
public static boolean isAbsoluteURI(String uri)
//package com.java2s; /*/*from w w w . jav a 2 s. c om*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. * * $Header:$ */ public class Main { /** * This is the same logic that we have in the runtime, in PageFlowRequestProcessor. Can't share the code, though. */ public static boolean isAbsoluteURI(String uri) { // // This method needs to be fast, so it can't use java.net.URI. // if (uri.length() == 0 || uri.charAt(0) == '/') return false; for (int i = 0, len = uri.length(); i < len; ++i) { char c = uri.charAt(i); if (c == ':') { return true; } else if (c == '/') { return false; } } return false; } }