/**
* 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.zookeeper.graph.filterops;
import org.apache.zookeeper.graph.LogEntry;
import org.apache.zookeeper.graph.FilterOp;
import org.apache.zookeeper.graph.FilterException;
public class GreaterThanOp extends FilterOp {
public boolean matches(LogEntry entry) throws FilterException {
Arg first = args.get(0);
if (first != null) {
FilterOp.ArgType type = first.getType();
if (type == FilterOp.ArgType.SYMBOL) {
String key = (String)first.getValue();
Object v = entry.getAttribute(key);
if (v instanceof String) {
type = FilterOp.ArgType.STRING;
} else if (v instanceof Double || v instanceof Long || v instanceof Integer || v instanceof Short) {
type = FilterOp.ArgType.NUMBER;
} else {
throw new FilterException("LessThanOp: Invalid argument, first argument resolves to neither a String nor a Number");
}
}
Object last = null;
for (Arg a : args) {
Object v = a.getValue();
if (a.getType() == FilterOp.ArgType.SYMBOL) {
String key = (String)a.getValue();
v = entry.getAttribute(key);
}
if (last != null) {
if (type == FilterOp.ArgType.STRING) {
if (((String)last).compareTo((String)v) <= 0) {
return false;
}
} else if (type == FilterOp.ArgType.NUMBER) {
// System.out.println("last[" + ((Number)last).longValue() + "] v["+ ((Number)v).longValue() + "]");
if (((Number)last).longValue() <= ((Number)v).longValue()) {
return false;
}
}
}
last = v;
}
return true;
} else {
return true;
}
}
}