001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.camel.builder.xml;
018
019 import org.apache.camel.util.ObjectHelper;
020
021 /**
022 * @version $Revision: $
023 */
024 public class Namespaces {
025 public static final String DEFAULT_NAMESPACE = "http://activemq.apache.org/camel/schema/spring";
026
027 public static final String IN_NAMESPACE = "http://camel.apache.org/xml/in/";
028 public static final String OUT_NAMESPACE = "http://camel.apache.org/xml/out/";
029 public static final String SYSTEM_PROPERTIES_NAMESPACE = "http://camel.apache.org/xml/variables/system-properties";
030 public static final String ENVIRONMENT_VARIABLES = "http://camel.apache.org/xml/variables/environment-variables";
031 public static final String EXCHANGE_PROPERTY = "http://camel.apache.org/xml/variables/exchange-property";
032
033 /**
034 * Utility classes should not have a public constructor.
035 */
036 private Namespaces() {
037 }
038
039 /**
040 * Returns true if the given namespaceURI is empty or if it matches the
041 * given expected namespace
042 */
043 public static boolean isMatchingNamespaceOrEmptyNamespace(String namespaceURI, String expectedNamespace) {
044 return ObjectHelper.isNullOrBlank(namespaceURI) || namespaceURI.equals(expectedNamespace);
045 }
046
047 }