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/*
* 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.dubbo.common.url.component;
import org.apache.dubbo.common.utils.LRUCache;
import org.apache.dubbo.common.utils.StringUtils;
import java.util.Map;
public class URLItemCache {
// thread safe with limited size, by default 1000
private static final Map PARAM_KEY_CACHE = new LRUCache<>(10000);
private static final Map PARAM_VALUE_CACHE = new LRUCache<>(50000);
private static final Map PATH_CACHE = new LRUCache<>(10000);
private static final Map REVISION_CACHE = new LRUCache<>(10000);
public static void putParams(Map params, String key, String value) {
String cachedKey = PARAM_KEY_CACHE.get(key);
if (StringUtils.isBlank(cachedKey)) {
cachedKey = key;
PARAM_KEY_CACHE.put(key, key);
}
String cachedValue = PARAM_VALUE_CACHE.get(value);
if (StringUtils.isBlank(cachedValue)) {
cachedValue = value;
PARAM_VALUE_CACHE.put(value, value);
}
params.put(cachedKey, cachedValue);
}
public static String checkPath(String path) {
if (StringUtils.isBlank(path)) {
return path;
}
String cachedPath = PATH_CACHE.putIfAbsent(path, path);
if (StringUtils.isNotBlank(cachedPath)) {
return cachedPath;
}
return path;
}
public static String checkRevision(String revision) {
if (StringUtils.isBlank(revision)) {
return revision;
}
String cachedRevision = REVISION_CACHE.putIfAbsent(revision, revision);
if (StringUtils.isNotBlank(cachedRevision)) {
return cachedRevision;
}
return revision;
}
public static String intern(String protocol) {
if (StringUtils.isBlank(protocol)) {
return protocol;
}
return protocol.intern();
}
public static void putParamsIntern(Map params, String key, String value) {
if (StringUtils.isBlank(key) || StringUtils.isBlank(value)) {
params.put(key, value);
return;
}
key = key.intern();
value = value.intern();
params.put(key, value);
}
}