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-rw-r--r--qpid/java/broker/src/main/java/org/apache/qpid/server/filter/ArithmeticExpression.java275
1 files changed, 0 insertions, 275 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/filter/ArithmeticExpression.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/filter/ArithmeticExpression.java
deleted file mode 100644
index fb5220f4da..0000000000
--- a/qpid/java/broker/src/main/java/org/apache/qpid/server/filter/ArithmeticExpression.java
+++ /dev/null
@@ -1,275 +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.filter;
-//
-// Based on like named file from r450141 of the Apache ActiveMQ project <http://www.activemq.org/site/home.html>
-//
-
-import org.apache.qpid.AMQException;
-import org.apache.qpid.server.queue.AMQMessage;
-
-/**
- * An expression which performs an operation on two expression values
- */
-public abstract class ArithmeticExpression extends BinaryExpression
-{
-
- protected static final int INTEGER = 1;
- protected static final int LONG = 2;
- protected static final int DOUBLE = 3;
-
- /**
- * @param left
- * @param right
- */
- public ArithmeticExpression(Expression left, Expression right)
- {
- super(left, right);
- }
-
- public static Expression createPlus(Expression left, Expression right)
- {
- return new ArithmeticExpression(left, right)
- {
- protected Object evaluate(Object lvalue, Object rvalue)
- {
- if (lvalue instanceof String)
- {
- String text = (String) lvalue;
- String answer = text + rvalue;
-
- return answer;
- }
- else if (lvalue instanceof Number)
- {
- return plus((Number) lvalue, asNumber(rvalue));
- }
-
- throw new RuntimeException("Cannot call plus operation on: " + lvalue + " and: " + rvalue);
- }
-
- public String getExpressionSymbol()
- {
- return "+";
- }
- };
- }
-
- public static Expression createMinus(Expression left, Expression right)
- {
- return new ArithmeticExpression(left, right)
- {
- protected Object evaluate(Object lvalue, Object rvalue)
- {
- if (lvalue instanceof Number)
- {
- return minus((Number) lvalue, asNumber(rvalue));
- }
-
- throw new RuntimeException("Cannot call minus operation on: " + lvalue + " and: " + rvalue);
- }
-
- public String getExpressionSymbol()
- {
- return "-";
- }
- };
- }
-
- public static Expression createMultiply(Expression left, Expression right)
- {
- return new ArithmeticExpression(left, right)
- {
-
- protected Object evaluate(Object lvalue, Object rvalue)
- {
- if (lvalue instanceof Number)
- {
- return multiply((Number) lvalue, asNumber(rvalue));
- }
-
- throw new RuntimeException("Cannot call multiply operation on: " + lvalue + " and: " + rvalue);
- }
-
- public String getExpressionSymbol()
- {
- return "*";
- }
- };
- }
-
- public static Expression createDivide(Expression left, Expression right)
- {
- return new ArithmeticExpression(left, right)
- {
-
- protected Object evaluate(Object lvalue, Object rvalue)
- {
- if (lvalue instanceof Number)
- {
- return divide((Number) lvalue, asNumber(rvalue));
- }
-
- throw new RuntimeException("Cannot call divide operation on: " + lvalue + " and: " + rvalue);
- }
-
- public String getExpressionSymbol()
- {
- return "/";
- }
- };
- }
-
- public static Expression createMod(Expression left, Expression right)
- {
- return new ArithmeticExpression(left, right)
- {
-
- protected Object evaluate(Object lvalue, Object rvalue)
- {
- if (lvalue instanceof Number)
- {
- return mod((Number) lvalue, asNumber(rvalue));
- }
-
- throw new RuntimeException("Cannot call mod operation on: " + lvalue + " and: " + rvalue);
- }
-
- public String getExpressionSymbol()
- {
- return "%";
- }
- };
- }
-
- protected Number plus(Number left, Number right)
- {
- switch (numberType(left, right))
- {
-
- case INTEGER:
- return new Integer(left.intValue() + right.intValue());
-
- case LONG:
- return new Long(left.longValue() + right.longValue());
-
- default:
- return new Double(left.doubleValue() + right.doubleValue());
- }
- }
-
- protected Number minus(Number left, Number right)
- {
- switch (numberType(left, right))
- {
-
- case INTEGER:
- return new Integer(left.intValue() - right.intValue());
-
- case LONG:
- return new Long(left.longValue() - right.longValue());
-
- default:
- return new Double(left.doubleValue() - right.doubleValue());
- }
- }
-
- protected Number multiply(Number left, Number right)
- {
- switch (numberType(left, right))
- {
-
- case INTEGER:
- return new Integer(left.intValue() * right.intValue());
-
- case LONG:
- return new Long(left.longValue() * right.longValue());
-
- default:
- return new Double(left.doubleValue() * right.doubleValue());
- }
- }
-
- protected Number divide(Number left, Number right)
- {
- return new Double(left.doubleValue() / right.doubleValue());
- }
-
- protected Number mod(Number left, Number right)
- {
- return new Double(left.doubleValue() % right.doubleValue());
- }
-
- private int numberType(Number left, Number right)
- {
- if (isDouble(left) || isDouble(right))
- {
- return DOUBLE;
- }
- else if ((left instanceof Long) || (right instanceof Long))
- {
- return LONG;
- }
- else
- {
- return INTEGER;
- }
- }
-
- private boolean isDouble(Number n)
- {
- return (n instanceof Float) || (n instanceof Double);
- }
-
- protected Number asNumber(Object value)
- {
- if (value instanceof Number)
- {
- return (Number) value;
- }
- else
- {
- throw new RuntimeException("Cannot convert value: " + value + " into a number");
- }
- }
-
- public Object evaluate(AMQMessage message) throws AMQException
- {
- Object lvalue = left.evaluate(message);
- if (lvalue == null)
- {
- return null;
- }
-
- Object rvalue = right.evaluate(message);
- if (rvalue == null)
- {
- return null;
- }
-
- return evaluate(lvalue, rvalue);
- }
-
- /**
- * @param lvalue
- * @param rvalue
- * @return
- */
- protected abstract Object evaluate(Object lvalue, Object rvalue);
-
-}