diff options
Diffstat (limited to 'broker/src/org/apache/qpid/server/exchange/HeadersBinding.java')
-rw-r--r-- | broker/src/org/apache/qpid/server/exchange/HeadersBinding.java | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/broker/src/org/apache/qpid/server/exchange/HeadersBinding.java b/broker/src/org/apache/qpid/server/exchange/HeadersBinding.java deleted file mode 100644 index b058211288..0000000000 --- a/broker/src/org/apache/qpid/server/exchange/HeadersBinding.java +++ /dev/null @@ -1,145 +0,0 @@ -/* - * - * 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. - * - */ -package org.apache.qpid.server.exchange; - -import org.apache.log4j.Logger; - -import java.util.Collections; -import java.util.Map; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Set; - -/** - * Defines binding and matching based on a set of headers. - */ -class HeadersBinding -{ - private static final Logger _logger = Logger.getLogger(HeadersBinding.class); - - private final Map _mappings = new HashMap(); - private final Set<Object> required = new HashSet<Object>(); - private final Set<Map.Entry> matches = new HashSet<Map.Entry>(); - private boolean matchAny; - - /** - * Creates a binding for a set of mappings. Those mappings whose value is - * null or the empty string are assumed only to be required headers, with - * no constraint on the value. Those with a non-null value are assumed to - * define a required match of value. - * @param mappings the defined mappings this binding should use - */ - HeadersBinding(Map mappings) - { - //noinspection unchecked - this(mappings == null ? new HashSet<Map.Entry>() : mappings.entrySet()); - _mappings.putAll(mappings); - } - - private HeadersBinding(Set<Map.Entry> entries) - { - for (Map.Entry e : entries) - { - if (isSpecial(e.getKey())) - { - processSpecial((String) e.getKey(), e.getValue()); - } - else if (e.getValue() == null || e.getValue().equals("")) - { - required.add(e.getKey()); - } - else - { - matches.add(e); - } - } - } - - protected Map getMappings() - { - return _mappings; - } - - /** - * Checks whether the supplied headers match the requirements of this binding - * @param headers the headers to check - * @return true if the headers define any required keys and match any required - * values - */ - public boolean matches(Map headers) - { - if(headers == null) - { - return required.isEmpty() && matches.isEmpty(); - } - else - { - return matchAny ? or(headers) : and(headers); - } - } - - private boolean and(Map headers) - { - //need to match all the defined mapping rules: - return headers.keySet().containsAll(required) - && headers.entrySet().containsAll(matches); - } - - private boolean or(Map headers) - { - //only need to match one mapping rule: - return !Collections.disjoint(headers.keySet(), required) - || !Collections.disjoint(headers.entrySet(), matches); - } - - private void processSpecial(String key, Object value) - { - if("X-match".equalsIgnoreCase(key)) - { - matchAny = isAny(value); - } - else - { - _logger.warn("Ignoring special header: " + key); - } - } - - private boolean isAny(Object value) - { - if(value instanceof String) - { - if("any".equalsIgnoreCase((String) value)) return true; - if("all".equalsIgnoreCase((String) value)) return false; - } - _logger.warn("Ignoring unrecognised match type: " + value); - return false;//default to all - } - - static boolean isSpecial(Object key) - { - return key instanceof String && isSpecial((String) key); - } - - static boolean isSpecial(String key) - { - return key.startsWith("X-") || key.startsWith("x-"); - } -} |