| /* |
| * 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.geode.internal.admin.statalerts; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.geode.DataSerializer; |
| import org.apache.geode.StatisticsFactory; |
| import org.apache.geode.SystemFailure; |
| import org.apache.geode.internal.admin.StatAlert; |
| import org.apache.geode.internal.admin.StatAlertDefinition; |
| |
| /** |
| * Base class for all the decorators |
| * |
| * @see FunctionDecoratorImpl |
| * @see GaugeThresholdDecoratorImpl |
| * @see NumberThresholdDecoratorImpl |
| * |
| */ |
| public abstract class BaseDecoratorImpl implements StatAlertDefinition { |
| |
| protected StatAlertDefinition _def; |
| |
| public BaseDecoratorImpl() { |
| super(); |
| } |
| |
| public BaseDecoratorImpl(StatAlertDefinition definition) { |
| super(); |
| this._def = definition; |
| } |
| |
| @Override |
| public int getId() { |
| return _def.getId(); |
| } |
| |
| @Override |
| public boolean verify(StatisticsFactory factory) { |
| return _def.verify(factory); |
| } |
| |
| /** |
| * This method returns the name of this stat alert definition. |
| * |
| * @return Name of the StatAlertDefinition |
| */ |
| @Override |
| public String getName() { |
| return _def.getName(); |
| } |
| |
| /** |
| * This method sets the name of this stat alert definition. |
| * |
| * @param name name to be set for this StatAlertDefinition. |
| */ |
| @Override |
| public void setName(String name) { |
| _def.setName(name); |
| } |
| |
| @Override |
| public StatisticInfo[] getStatisticInfo() { |
| return _def.getStatisticInfo(); |
| } |
| |
| @Override |
| public void setStatisticInfo(StatisticInfo[] info) { |
| _def.setStatisticInfo(info); |
| } |
| |
| @Override |
| public String toString() { |
| return _def.toString(); |
| } |
| |
| @Override |
| public String getStringRepresentation() { |
| StringBuffer buffer = new StringBuffer(); |
| buffer.append("StatAlertDefinition [\n"); |
| buffer.append(toString()); |
| buffer.append("]"); |
| |
| return buffer.toString(); |
| } |
| |
| @Override |
| public boolean evaluate(Number[] params) { |
| return _def.evaluate(params); |
| } |
| |
| @Override |
| public boolean evaluate() { |
| return _def.evaluate(); |
| } |
| |
| @Override |
| public StatAlert evaluateAndAlert(Number[] params) { |
| return _def.evaluateAndAlert(params); |
| } |
| |
| @Override |
| public StatAlert evaluateAndAlert() { |
| // TODO Auto-generated method stub |
| return _def.evaluateAndAlert(); |
| } |
| |
| @Override |
| public Number[] getValue() { |
| return _def.getValue(); |
| } |
| |
| @Override |
| public Number[] getValue(Number[] vals) { |
| return _def.getValue(vals); |
| } |
| |
| @Override |
| public boolean hasDecorator(String decoratorID) { |
| return _def.hasDecorator(decoratorID); |
| } |
| |
| @Override |
| public StatAlertDefinition getDecorator(String decoratorID) { |
| return _def.getDecorator(decoratorID); |
| } |
| |
| public static boolean isGreaterThan(Number param, Number threshold) { |
| try { |
| int eval = compare(param, threshold); |
| return eval > 0; |
| } catch (VirtualMachineError err) { |
| SystemFailure.initiateFailure(err); |
| // If this ever returns, rethrow the error. We're poisoned |
| // now, so don't let this thread continue. |
| throw err; |
| } catch (Throwable e) { |
| // Whenever you catch Error or Throwable, you must also |
| // catch VirtualMachineError (see above). However, there is |
| // _still_ a possibility that you are dealing with a cascading |
| // error condition, so you also need to check to see if the JVM |
| // is still usable: |
| SystemFailure.checkFailure(); |
| return false; |
| } |
| } |
| |
| public static boolean isLessThan(Number param, Number threshold) { |
| try { |
| int eval = compare(param, threshold); |
| return eval < 0; |
| } catch (VirtualMachineError err) { |
| SystemFailure.initiateFailure(err); |
| // If this ever returns, rethrow the error. We're poisoned |
| // now, so don't let this thread continue. |
| throw err; |
| } catch (Throwable e) { |
| // Whenever you catch Error or Throwable, you must also |
| // catch VirtualMachineError (see above). However, there is |
| // _still_ a possibility that you are dealing with a cascading |
| // error condition, so you also need to check to see if the JVM |
| // is still usable: |
| SystemFailure.checkFailure(); |
| return false; |
| } |
| } |
| |
| public static int compare(Number param, Number threshold) throws Throwable { |
| try { |
| int eval = 0; |
| if (threshold instanceof Double) { |
| eval = Double.compare(param.doubleValue(), threshold.doubleValue()); |
| } else if (threshold instanceof Float) { |
| eval = Float.compare(param.floatValue(), threshold.floatValue()); |
| } else if (threshold instanceof Long) { |
| eval = (Long.valueOf(param.longValue())).compareTo(Long.valueOf(threshold.longValue())); |
| } else if (threshold instanceof Integer) { |
| eval = param.intValue() > threshold.intValue() ? 1 : -1; |
| } |
| return eval; |
| } catch (VirtualMachineError err) { |
| SystemFailure.initiateFailure(err); |
| // If this ever returns, rethrow the error. We're poisoned |
| // now, so don't let this thread continue. |
| throw err; |
| } catch (Throwable e) { |
| // Whenever you catch Error or Throwable, you must also |
| // catch VirtualMachineError (see above). However, there is |
| // _still_ a possibility that you are dealing with a cascading |
| // error condition, so you also need to check to see if the JVM |
| // is still usable: |
| SystemFailure.checkFailure(); |
| throw e; |
| } |
| } |
| |
| |
| @Override |
| public void toData(DataOutput out) throws IOException { |
| DataSerializer.writeObject(this._def, out); |
| } |
| |
| @Override |
| public void fromData(DataInput in) throws IOException, ClassNotFoundException { |
| this._def = (StatAlertDefinition) DataSerializer.readObject(in); |
| } |
| } |