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格式化代码
git-svn-id: http://code.alibabatech.com/svn/druid/trunk@17 b9813039-fb51-4c41-a8b9-e21c2acb5095
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wenshao
@@ -1,189 +1,161 @@
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/*
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* Copyright 2011 Alibaba Group.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* Copyright 2011 Alibaba Group. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
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* file except in compliance with the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific language governing permissions and limitations under the
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* License.
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*/
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package com.alibaba.druid.util;
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import java.io.Serializable;
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import java.util.Collection;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import javax.management.openmbean.CompositeData;
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import javax.management.openmbean.CompositeType;
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import javax.management.openmbean.OpenType;
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import javax.management.openmbean.TabularType;
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/**
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* This abstract class provides the implementation of the CompositeData
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* interface. A CompositeData object will be lazily created only when the
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* CompositeData interface is used.
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*
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* Classes that extends this abstract class will implement the
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* getCompositeData() method. The object returned by the getCompositeData() is
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* an instance of CompositeData such that the instance serializes itself as the
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* type CompositeDataSupport.
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*/
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public abstract class LazyCompositeData implements CompositeData, Serializable {
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private CompositeData compositeData;
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// Implementation of the CompositeData interface
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public boolean containsKey(String key) {
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return compositeData().containsKey(key);
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}
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public boolean containsValue(Object value) {
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return compositeData().containsValue(value);
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}
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public boolean equals(Object obj) {
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return compositeData().equals(obj);
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}
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public Object get(String key) {
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return compositeData().get(key);
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}
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public Object[] getAll(String[] keys) {
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return compositeData().getAll(keys);
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}
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public CompositeType getCompositeType() {
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return compositeData().getCompositeType();
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}
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public int hashCode() {
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return compositeData().hashCode();
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}
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public String toString() {
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/** FIXME: What should this be?? */
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return compositeData().toString();
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}
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public Collection<?> values() {
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return compositeData().values();
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}
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/*
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* Lazy creation of a CompositeData object only when the CompositeData
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* interface is used.
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*/
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private synchronized CompositeData compositeData() {
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if (compositeData != null)
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return compositeData;
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compositeData = getCompositeData();
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return compositeData;
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}
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/**
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* Designate to a CompositeData object when writing to an output stream
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* during serialization so that the receiver only requires JMX 1.2 classes
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* but not any implementation specific class.
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*/
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protected Object writeReplace() throws java.io.ObjectStreamException {
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return compositeData();
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}
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/**
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* Returns the CompositeData representing this object. The returned
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* CompositeData object must be an instance of
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* javax.management.openmbean.CompositeDataSupport class so that no
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* implementation specific class is required for unmarshalling besides JMX
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* 1.2 classes.
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*/
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protected abstract CompositeData getCompositeData();
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// Helper methods
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static String getString(CompositeData cd, String itemName) {
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if (cd == null)
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throw new IllegalArgumentException("Null CompositeData");
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return (String) cd.get(itemName);
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}
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static boolean getBoolean(CompositeData cd, String itemName) {
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if (cd == null)
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throw new IllegalArgumentException("Null CompositeData");
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return ((Boolean) cd.get(itemName)).booleanValue();
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}
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static long getLong(CompositeData cd, String itemName) {
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if (cd == null)
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throw new IllegalArgumentException("Null CompositeData");
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return ((Number) cd.get(itemName)).longValue();
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}
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static int getInt(CompositeData cd, String itemName) {
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if (cd == null)
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throw new IllegalArgumentException("Null CompositeData");
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return ((Number) cd.get(itemName)).intValue();
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}
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/**
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* Compares two CompositeTypes and returns true if all items in type1 exist
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* in type2 and their item types are the same.
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*/
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protected static boolean isTypeMatched(CompositeType type1, CompositeType type2) {
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if (type1 == type2)
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return true;
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// We can't use CompositeType.isValue() since it returns false
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// if the type name doesn't match.
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Set<?> allItems = type1.keySet();
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// Check all items in the type1 exist in type2
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if (!type2.keySet().containsAll(allItems))
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return false;
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for (Iterator<?> iter = allItems.iterator(); iter.hasNext();) {
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String item = (String) iter.next();
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OpenType<?> ot1 = type1.getType(item);
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OpenType<?> ot2 = type2.getType(item);
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if (ot1 instanceof CompositeType) {
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if (!(ot2 instanceof CompositeType))
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return false;
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if (!isTypeMatched((CompositeType) ot1, (CompositeType) ot2))
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return false;
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} else if (ot1 instanceof TabularType) {
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if (!(ot2 instanceof TabularType))
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return false;
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if (!isTypeMatched((TabularType) ot1, (TabularType) ot2))
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return false;
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} else if (!ot1.equals(ot2)) {
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return false;
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}
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}
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return true;
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}
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protected static boolean isTypeMatched(TabularType type1, TabularType type2) {
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if (type1 == type2)
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return true;
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List<String> list1 = type1.getIndexNames();
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List<String> list2 = type2.getIndexNames();
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// check if the list of index names are the same
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if (!list1.equals(list2))
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return false;
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return isTypeMatched(type1.getRowType(), type2.getRowType());
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}
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}
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package com.alibaba.druid.util;
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import java.io.Serializable;
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import java.util.Collection;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import javax.management.openmbean.CompositeData;
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import javax.management.openmbean.CompositeType;
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import javax.management.openmbean.OpenType;
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import javax.management.openmbean.TabularType;
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/**
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* This abstract class provides the implementation of the CompositeData interface. A CompositeData object will be lazily
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* created only when the CompositeData interface is used. Classes that extends this abstract class will implement the
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* getCompositeData() method. The object returned by the getCompositeData() is an instance of CompositeData such that
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* the instance serializes itself as the type CompositeDataSupport.
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*/
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public abstract class LazyCompositeData implements CompositeData, Serializable {
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private CompositeData compositeData;
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// Implementation of the CompositeData interface
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public boolean containsKey(String key) {
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return compositeData().containsKey(key);
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}
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public boolean containsValue(Object value) {
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return compositeData().containsValue(value);
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}
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public boolean equals(Object obj) {
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return compositeData().equals(obj);
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}
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public Object get(String key) {
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return compositeData().get(key);
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}
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public Object[] getAll(String[] keys) {
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return compositeData().getAll(keys);
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}
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public CompositeType getCompositeType() {
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return compositeData().getCompositeType();
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}
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public int hashCode() {
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return compositeData().hashCode();
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}
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public String toString() {
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/** FIXME: What should this be?? */
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return compositeData().toString();
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}
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public Collection<?> values() {
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return compositeData().values();
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}
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/*
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* Lazy creation of a CompositeData object only when the CompositeData interface is used.
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*/
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private synchronized CompositeData compositeData() {
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if (compositeData != null) return compositeData;
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compositeData = getCompositeData();
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return compositeData;
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}
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/**
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* Designate to a CompositeData object when writing to an output stream during serialization so that the receiver
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* only requires JMX 1.2 classes but not any implementation specific class.
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*/
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protected Object writeReplace() throws java.io.ObjectStreamException {
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return compositeData();
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}
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/**
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* Returns the CompositeData representing this object. The returned CompositeData object must be an instance of
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* javax.management.openmbean.CompositeDataSupport class so that no implementation specific class is required for
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* unmarshalling besides JMX 1.2 classes.
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*/
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protected abstract CompositeData getCompositeData();
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// Helper methods
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static String getString(CompositeData cd, String itemName) {
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if (cd == null) throw new IllegalArgumentException("Null CompositeData");
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return (String) cd.get(itemName);
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}
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static boolean getBoolean(CompositeData cd, String itemName) {
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if (cd == null) throw new IllegalArgumentException("Null CompositeData");
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return ((Boolean) cd.get(itemName)).booleanValue();
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}
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static long getLong(CompositeData cd, String itemName) {
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if (cd == null) throw new IllegalArgumentException("Null CompositeData");
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return ((Number) cd.get(itemName)).longValue();
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}
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static int getInt(CompositeData cd, String itemName) {
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if (cd == null) throw new IllegalArgumentException("Null CompositeData");
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return ((Number) cd.get(itemName)).intValue();
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}
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/**
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* Compares two CompositeTypes and returns true if all items in type1 exist in type2 and their item types are the
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* same.
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*/
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protected static boolean isTypeMatched(CompositeType type1, CompositeType type2) {
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if (type1 == type2) return true;
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// We can't use CompositeType.isValue() since it returns false
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// if the type name doesn't match.
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Set<?> allItems = type1.keySet();
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// Check all items in the type1 exist in type2
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if (!type2.keySet().containsAll(allItems)) return false;
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for (Iterator<?> iter = allItems.iterator(); iter.hasNext();) {
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String item = (String) iter.next();
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OpenType<?> ot1 = type1.getType(item);
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OpenType<?> ot2 = type2.getType(item);
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if (ot1 instanceof CompositeType) {
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if (!(ot2 instanceof CompositeType)) return false;
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if (!isTypeMatched((CompositeType) ot1, (CompositeType) ot2)) return false;
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} else if (ot1 instanceof TabularType) {
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if (!(ot2 instanceof TabularType)) return false;
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if (!isTypeMatched((TabularType) ot1, (TabularType) ot2)) return false;
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} else if (!ot1.equals(ot2)) {
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return false;
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}
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}
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return true;
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}
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protected static boolean isTypeMatched(TabularType type1, TabularType type2) {
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if (type1 == type2) return true;
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List<String> list1 = type1.getIndexNames();
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List<String> list2 = type2.getIndexNames();
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// check if the list of index names are the same
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if (!list1.equals(list2)) return false;
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return isTypeMatched(type1.getRowType(), type2.getRowType());
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}
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}
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