diff options
Diffstat (limited to 'qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/type/Symbol.java')
-rw-r--r-- | qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/type/Symbol.java | 184 |
1 files changed, 94 insertions, 90 deletions
diff --git a/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/type/Symbol.java b/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/type/Symbol.java index 6efcdcf952..de4e86f201 100644 --- a/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/type/Symbol.java +++ b/qpid/java/amqp-1-0-common/src/main/java/org/apache/qpid/amqp_1_0/type/Symbol.java @@ -1,90 +1,94 @@ -/*
- *
- * 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.amqp_1_0.type;
-
-import java.util.concurrent.ConcurrentHashMap;
-
-public final class Symbol implements Comparable<Symbol>, CharSequence
-{
- private final String _underlying;
- private static final ConcurrentHashMap<String, Symbol> _symbols = new ConcurrentHashMap<String, Symbol>(2048);
-
- private Symbol(String underlying)
- {
- _underlying = underlying;
- }
-
- public int length()
- {
- return _underlying.length();
- }
-
- public int compareTo(Symbol o)
- {
- return _underlying.compareTo(o._underlying);
- }
-
- public char charAt(int index)
- {
- return _underlying.charAt(index);
- }
-
- public CharSequence subSequence(int beginIndex, int endIndex)
- {
- return _underlying.subSequence(beginIndex, endIndex);
- }
-
- @Override
- public String toString()
- {
- return _underlying;
- }
-
- @Override
- public int hashCode()
- {
- return _underlying.hashCode();
- }
-
- public static Symbol valueOf(String symbolVal)
- {
- return getSymbol(symbolVal);
- }
-
- public static Symbol getSymbol(String symbolVal)
- {
- Symbol symbol = _symbols.get(symbolVal);
- if(symbol == null)
- {
- symbolVal = symbolVal.intern();
- symbol = new Symbol(symbolVal);
- Symbol existing;
- if((existing = _symbols.putIfAbsent(symbolVal, symbol)) != null)
- {
- symbol = existing;
- }
- }
- return symbol;
- }
-
-
-}
+/* + * + * 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.amqp_1_0.type; + +import java.util.concurrent.ConcurrentHashMap; + +public final class Symbol implements Comparable<Symbol>, CharSequence +{ + private final String _underlying; + private static final ConcurrentHashMap<String, Symbol> _symbols = new ConcurrentHashMap<String, Symbol>(2048); + + private Symbol(String underlying) + { + _underlying = underlying; + } + + public int length() + { + return _underlying.length(); + } + + public int compareTo(Symbol o) + { + return _underlying.compareTo(o._underlying); + } + + public char charAt(int index) + { + return _underlying.charAt(index); + } + + public CharSequence subSequence(int beginIndex, int endIndex) + { + return _underlying.subSequence(beginIndex, endIndex); + } + + @Override + public String toString() + { + return _underlying; + } + + @Override + public int hashCode() + { + return _underlying.hashCode(); + } + + public static Symbol valueOf(String symbolVal) + { + return getSymbol(symbolVal); + } + + public static Symbol getSymbol(String symbolVal) + { + if(symbolVal == null) + { + return null; + } + Symbol symbol = _symbols.get(symbolVal); + if(symbol == null) + { + symbolVal = symbolVal.intern(); + symbol = new Symbol(symbolVal); + Symbol existing; + if((existing = _symbols.putIfAbsent(symbolVal, symbol)) != null) + { + symbol = existing; + } + } + return symbol; + } + + +} |