/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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 io.undertow.attribute;

import io.undertow.server.HttpServerExchange;

The query string
Author:Stuart Douglas
/** * The query string * * @author Stuart Douglas */
public class QueryStringAttribute implements ExchangeAttribute { public static final String QUERY_STRING_SHORT = "%q"; public static final String QUERY_STRING = "%{QUERY_STRING}"; public static final String BARE_QUERY_STRING = "%{BARE_QUERY_STRING}"; public static final ExchangeAttribute INSTANCE = new QueryStringAttribute(true); public static final ExchangeAttribute BARE_INSTANCE = new QueryStringAttribute(false); private final boolean includeQuestionMark; private QueryStringAttribute(boolean includeQuestionMark) { this.includeQuestionMark = includeQuestionMark; } @Override public String readAttribute(final HttpServerExchange exchange) { String qs = exchange.getQueryString(); if(qs.isEmpty() || !includeQuestionMark) { return qs; } return '?' + qs; } @Override public void writeAttribute(final HttpServerExchange exchange, final String newValue) throws ReadOnlyAttributeException { exchange.setQueryString(newValue); } @Override public String toString() { if(includeQuestionMark) { return QUERY_STRING; } else { return BARE_QUERY_STRING; } } public static final class Builder implements ExchangeAttributeBuilder { @Override public String name() { return "Query String"; } @Override public ExchangeAttribute build(final String token) { if (token.equals(QUERY_STRING) || token.equals(QUERY_STRING_SHORT)) { return QueryStringAttribute.INSTANCE; } else if(token.equals(BARE_QUERY_STRING)) { return QueryStringAttribute.BARE_INSTANCE; } return null; } @Override public int priority() { return 0; } } }