com.jianggujin.http.util.JDefaultMultiValueMap Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of JHttp Show documentation
HTTP请求工具
The newest version!
/**
 * Copyright 2018 jianggujin (www.jianggujin.com).
 * 
 * Licensed 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 com.jianggujin.http.util;

import java.io.Serializable;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * 多值Map适配
 * 
 * @author jianggujin
 *
 * @param 
 * @param 
 */
public class JDefaultMultiValueMap implements JMultiValueMap, Serializable {

    private static final long serialVersionUID = 1L;
    private final Map> targetMap;

    public JDefaultMultiValueMap() {
        this.targetMap = new LinkedHashMap>();
    }

    public JDefaultMultiValueMap(int initialCapacity) {
        this.targetMap = new LinkedHashMap>(initialCapacity);
    }

    public JDefaultMultiValueMap(Map> otherMap) {
        this(otherMap, false);
    }

    /**
     * 可以覆盖默认的{@link LinkedHashMap}实现
     * 
     * @param otherMap
     * @param overrideDefault
     */
    public JDefaultMultiValueMap(Map> otherMap, boolean overrideDefault) {
        if (otherMap == null)
            throw new IllegalArgumentException("otherMap must not be null.");
        this.targetMap = overrideDefault ? otherMap : new LinkedHashMap>(otherMap);
    }

    @Override
    public void add(K key, V value) {
        List values = this.targetMap.get(key);
        if (values == null) {
            values = new LinkedList();
            this.targetMap.put(key, values);
        }
        values.add(value);
    }

    @Override
    public V getFirst(K key) {
        List values = this.targetMap.get(key);
        return (values != null ? values.get(0) : null);
    }

    @Override
    public void set(K key, V value) {
        List values = new LinkedList();
        values.add(value);
        this.targetMap.put(key, values);
    }

    @Override
    public void setAll(Map values) {
        for (Entry entry : values.entrySet()) {
            set(entry.getKey(), entry.getValue());
        }
    }

    @Override
    public Map toSingleValueMap() {
        LinkedHashMap singleValueMap = new LinkedHashMap(this.targetMap.size());
        for (Entry> entry : targetMap.entrySet()) {
            singleValueMap.put(entry.getKey(), entry.getValue().get(0));
        }
        return singleValueMap;
    }

    @Override
    public int size() {
        return this.targetMap.size();
    }

    @Override
    public boolean isEmpty() {
        return this.targetMap.isEmpty();
    }

    @Override
    public boolean containsKey(Object key) {
        return this.targetMap.containsKey(key);
    }

    @Override
    public boolean containsValue(Object value) {
        return this.targetMap.containsValue(value);
    }

    @Override
    public List get(Object key) {
        return this.targetMap.get(key);
    }

    @Override
    public List put(K key, List value) {
        return this.targetMap.put(key, value);
    }

    @Override
    public List remove(Object key) {
        return this.targetMap.remove(key);
    }

    @Override
    public void putAll(Map> m) {
        this.targetMap.putAll(m);
    }

    @Override
    public void clear() {
        this.targetMap.clear();
    }

    @Override
    public Set keySet() {
        return this.targetMap.keySet();
    }

    @Override
    public Collection> values() {
        return this.targetMap.values();
    }

    @Override
    public Set>> entrySet() {
        return this.targetMap.entrySet();
    }

    @Override
    public boolean equals(Object obj) {
        return this.targetMap.equals(obj);
    }

    @Override
    public int hashCode() {
        return this.targetMap.hashCode();
    }

    @Override
    public String toString() {
        return this.targetMap.toString();
    }

}