/** * Copyright 2013 JogAmp Community. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, are * permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * The views and conclusions contained in the software and documentation are those of the * authors and should not be interpreted as representing official policies, either expressed * or implied, of JogAmp Community. */ package com.jogamp.common.net; import java.net.URI; import java.net.URISyntaxException; import java.util.HashMap; import java.util.Iterator; import java.util.Map; /** * Helper class to process URI's query, handled as properties. *

* The order of the URI segments (any properties) are not preserved. *

*
 *  URI: [scheme:][//authority][path][?query][#fragment]
 *  w/ authority: [user-info@]host[:port]
 *  Note: 'path' starts w/ fwd slash
 * 
*/ public class URIQueryProps { private static final String QMARK = "?"; private static final String AMPER = "&"; private static final char ASSIG = '='; private static final String EMPTY = ""; private final HashMap properties = new HashMap(); public final Map getProperties() { return properties; } public final String appendQuery(String baseQuery) throws URISyntaxException { boolean needsSep = false; final StringBuilder sb = new StringBuilder(); if ( null != baseQuery ) { if( !baseQuery.startsWith(QMARK) ) { baseQuery = baseQuery.substring(1); } sb.append(baseQuery); if( !baseQuery.endsWith(AMPER) ) { needsSep = true; } } Iterator propKeys = properties.keySet().iterator(); while(propKeys.hasNext()) { if(needsSep) { sb.append(AMPER); } final String key = propKeys.next(); final String val = properties.get(key); sb.append(key); if( EMPTY != val ) { sb.append(ASSIG).append(properties.get(key)); } needsSep = true; } return sb.toString(); } public final URI appendQuery(URI base) throws URISyntaxException { return new URI(base.getScheme(), base.getRawUserInfo(), base.getHost(), base.getPort(), base.getRawPath(), appendQuery(base.getRawQuery()), base.getRawFragment()); } public static final URIQueryProps create(URI uri) { final URIQueryProps data = new URIQueryProps(); final String q = uri.getQuery(); final int q_l = null != q ? q.length() : -1; int q_e = -1; while(q_e < q_l) { int q_b = q_e + 1; // next term q_e = q.indexOf(AMPER, q_b); if(0 == q_e) { // single separator continue; } if(0 > q_e) { // end q_e = q_l; } // n-part final String part = q.substring(q_b, q_e); final int assignment = part.indexOf(ASSIG); if(0 < assignment) { // assignment final String k = part.substring(0, assignment); final String v = part.substring(assignment+1); data.properties.put(k, v); } else { // property key only data.properties.put(part, EMPTY); } } return data; } }