| /* 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.configuration; |
| |
| import org.apache.qpid.configuration.Accessor.SystemPropertyAccessor; |
| |
| public abstract class QpidProperty<T> |
| { |
| private T defValue; |
| private String[] names; |
| private Accessor accessor; |
| |
| QpidProperty(T defValue, String... names) |
| { |
| this(new SystemPropertyAccessor(),defValue,names); |
| } |
| |
| QpidProperty(Accessor accessor,T defValue, String... names) |
| { |
| this.accessor = accessor; |
| this.defValue = defValue; |
| this.names = names; |
| } |
| |
| public T get() |
| { |
| for (String name : names) |
| { |
| T obj = getByName(name); |
| if (obj != null) |
| { |
| return obj; |
| } |
| } |
| |
| return defValue; |
| } |
| |
| protected abstract T getByName(String name); |
| |
| public static QpidProperty<Boolean> booleanProperty(Boolean defaultValue, |
| String... names) |
| { |
| return new QpidBooleanProperty(defaultValue, names); |
| } |
| |
| public static QpidProperty<Boolean> booleanProperty(Accessor accessor, |
| Boolean defaultValue,String... names) |
| { |
| return new QpidBooleanProperty(accessor,defaultValue, names); |
| } |
| |
| public static QpidProperty<Integer> intProperty(Integer defaultValue, |
| String... names) |
| { |
| return new QpidIntProperty(defaultValue, names); |
| } |
| |
| public static QpidProperty<Integer> intProperty(Accessor accessor, |
| Integer defaultValue, String... names) |
| { |
| return new QpidIntProperty(accessor,defaultValue, names); |
| } |
| |
| public static QpidProperty<Long> longProperty(Long defaultValue, |
| String... names) |
| { |
| return new QpidLongProperty(defaultValue, names); |
| } |
| |
| public static QpidProperty<Long> longProperty(Accessor accessor, |
| Long defaultValue, String... names) |
| { |
| return new QpidLongProperty(accessor,defaultValue, names); |
| } |
| |
| public static QpidProperty<String> stringProperty(String defaultValue, |
| String... names) |
| { |
| return new QpidStringProperty(defaultValue, names); |
| } |
| |
| public static QpidProperty<String> stringProperty(Accessor accessor, |
| String defaultValue,String... names) |
| { |
| return new QpidStringProperty(accessor,defaultValue, names); |
| } |
| |
| public static QpidProperty<Float> floatProperty(Float defaultValue, String... names) |
| { |
| return new QpidFloatProperty(defaultValue, names); |
| } |
| |
| protected Accessor getAccessor() |
| { |
| return accessor; |
| } |
| |
| static class QpidBooleanProperty extends QpidProperty<Boolean> |
| { |
| QpidBooleanProperty(Boolean defValue, String... names) |
| { |
| super(defValue, names); |
| } |
| |
| QpidBooleanProperty(Accessor accessor,Boolean defValue, String... names) |
| { |
| super(accessor,defValue, names); |
| } |
| |
| @Override |
| protected Boolean getByName(String name) |
| { |
| return getAccessor().getBoolean(name); |
| } |
| } |
| |
| static class QpidIntProperty extends QpidProperty<Integer> |
| { |
| QpidIntProperty(Integer defValue, String... names) |
| { |
| super(defValue, names); |
| } |
| |
| QpidIntProperty(Accessor accessor,Integer defValue, String... names) |
| { |
| super(accessor,defValue, names); |
| } |
| |
| @Override |
| protected Integer getByName(String name) |
| { |
| return getAccessor().getInt(name); |
| } |
| } |
| |
| static class QpidLongProperty extends QpidProperty<Long> |
| { |
| QpidLongProperty(Long defValue, String... names) |
| { |
| super(defValue, names); |
| } |
| |
| QpidLongProperty(Accessor accessor,Long defValue, String... names) |
| { |
| super(accessor,defValue, names); |
| } |
| |
| @Override |
| protected Long getByName(String name) |
| { |
| return getAccessor().getLong(name); |
| } |
| } |
| |
| static class QpidStringProperty extends QpidProperty<String> |
| { |
| QpidStringProperty(String defValue, String... names) |
| { |
| super(defValue, names); |
| } |
| |
| QpidStringProperty(Accessor accessor,String defValue, String... names) |
| { |
| super(accessor,defValue, names); |
| } |
| |
| @Override |
| protected String getByName(String name) |
| { |
| return getAccessor().getString(name); |
| } |
| } |
| |
| static class QpidFloatProperty extends QpidProperty<Float> |
| { |
| QpidFloatProperty(Float defValue, String... names) |
| { |
| super(defValue, names); |
| } |
| |
| QpidFloatProperty(Accessor accessor,Float defValue, String... names) |
| { |
| super(accessor,defValue, names); |
| } |
| |
| @Override |
| protected Float getByName(String name) |
| { |
| return getAccessor().getFloat(name); |
| } |
| } |
| |
| } |