| /* |
| * 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.sentry.core.common.utils; |
| |
| import java.util.List; |
| |
| import com.google.common.collect.Lists; |
| |
| public class KeyValue { |
| private final String key; |
| private final String value; |
| |
| public KeyValue(String keyValue) { |
| int splitterIndex = keyValue.indexOf(SentryConstants.KV_SEPARATOR); |
| int splitterIndexEnd = keyValue.lastIndexOf(SentryConstants.KV_SEPARATOR); |
| |
| if ((splitterIndex > 0) && (splitterIndex == splitterIndexEnd)) { |
| // optimize for simple case |
| key = keyValue.substring(0, splitterIndex).trim().intern(); |
| value = keyValue.substring(splitterIndex + 1).trim().intern(); |
| } else { |
| List<String> kvList = Lists.newArrayList(SentryConstants.KV_SPLITTER.trimResults().limit(2).split(keyValue)); |
| if (kvList.size() != 2) { |
| throw new IllegalArgumentException("Invalid key value: " + keyValue + " " + kvList); |
| } |
| key = kvList.get(0); |
| value = kvList.get(1); |
| } |
| |
| if (key.isEmpty()) { |
| throw new IllegalArgumentException("For keyValue: " + keyValue + ", Key cannot be empty"); |
| } else if (value.isEmpty()) { |
| throw new IllegalArgumentException("For keyValue: " + keyValue + ", Value cannot be empty"); |
| } |
| } |
| |
| public KeyValue(String key, String value) { |
| super(); |
| this.key = key.intern(); |
| this.value = value.intern(); |
| } |
| |
| public String getKey() { |
| return key; |
| } |
| |
| public String getValue() { |
| return value; |
| } |
| |
| @Override |
| public String toString() { |
| return SentryConstants.KV_JOINER.join(key, value); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((key == null) ? 0 : key.hashCode()); |
| result = prime * result + ((value == null) ? 0 : value.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| KeyValue other = (KeyValue) obj; |
| if (key == null) { |
| if (other.key != null) { |
| return false; |
| } |
| } else if (!key.equals(other.key)) { |
| return false; |
| } |
| if (value == null) { |
| if (other.value != null) { |
| return false; |
| } |
| } else if (!value.equals(other.value)) { |
| return false; |
| } |
| return true; |
| } |
| } |