diff options
Diffstat (limited to 'M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/HeadersBinding.java')
| -rw-r--r-- | M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/HeadersBinding.java | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/HeadersBinding.java b/M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/HeadersBinding.java deleted file mode 100644 index 2b7df4361a..0000000000 --- a/M4-RCs/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/HeadersBinding.java +++ /dev/null @@ -1,219 +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 java.util.HashMap; -import java.util.HashSet; -import java.util.Map; -import java.util.Set; - -import org.apache.log4j.Logger; -import org.apache.qpid.framing.AMQTypedValue; -import org.apache.qpid.framing.FieldTable; - -/** - * Defines binding and matching based on a set of headers. - */ -class HeadersBinding -{ - private static final Logger _logger = Logger.getLogger(HeadersBinding.class); - - private final FieldTable _mappings; - private final Set<String> required = new HashSet<String>(); - private final Map<String,Object> matches = new HashMap<String,Object>(); - private boolean matchAny; - - private final class MatchesOrProcessor implements FieldTable.FieldTableElementProcessor - { - private Boolean _result = Boolean.FALSE; - - public boolean processElement(String propertyName, AMQTypedValue value) - { - if((value != null) && (value.getValue() != null) && value.getValue().equals(matches.get(propertyName))) - { - _result = Boolean.TRUE; - return false; - } - return true; - } - - public Object getResult() - { - return _result; - } - } - - private final class RequiredOrProcessor implements FieldTable.FieldTableElementProcessor - { - Boolean _result = Boolean.FALSE; - - public boolean processElement(String propertyName, AMQTypedValue value) - { - if(required.contains(propertyName)) - { - _result = Boolean.TRUE; - return false; - } - return true; - } - - public Object getResult() - { - return _result; - } - } - - - - /** - * 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(FieldTable mappings) - { - _mappings = mappings; - initMappings(); - } - - private void initMappings() - { - - _mappings.processOverElements(new FieldTable.FieldTableElementProcessor() - { - - public boolean processElement(String propertyName, AMQTypedValue value) - { - if (isSpecial(propertyName)) - { - processSpecial(propertyName, value.getValue()); - } - else if (value.getValue() == null || value.getValue().equals("")) - { - required.add(propertyName); - } - else - { - matches.put(propertyName,value.getValue()); - } - - return true; - } - - public Object getResult() - { - return null; - } - }); - } - - protected FieldTable 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(FieldTable headers) - { - if(headers == null) - { - return required.isEmpty() && matches.isEmpty(); - } - else - { - return matchAny ? or(headers) : and(headers); - } - } - - private boolean and(FieldTable headers) - { - if(headers.keys().containsAll(required)) - { - for(Map.Entry<String, Object> e : matches.entrySet()) - { - if(!e.getValue().equals(headers.getObject(e.getKey()))) - { - return false; - } - } - return true; - } - else - { - return false; - } - } - - - private boolean or(final FieldTable headers) - { - if(required.isEmpty() || !(Boolean) headers.processOverElements(new RequiredOrProcessor())) - { - return ((!matches.isEmpty()) && (Boolean) headers.processOverElements(new MatchesOrProcessor())) - || (required.isEmpty() && matches.isEmpty()); - } - else - { - return true; - } - } - - 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-"); - } -} |