93 lines
2.2 KiB
Java
93 lines
2.2 KiB
Java
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package com.sipai.activiti.util;
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import java.io.PrintStream;
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import java.io.PrintWriter;
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import java.util.*;
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/**
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* 有序Properties
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*/
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public class LinkedProperties extends Properties {
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private static final long serialVersionUID = 1L;
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private Map<Object, Object> linkMap = new LinkedHashMap<Object, Object>();
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public void clear() {
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linkMap.clear();
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}
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public boolean contains(Object value) {
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return linkMap.containsValue(value);
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}
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public boolean containsKey(Object key) {
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return linkMap.containsKey(key);
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}
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public boolean containsValue(Object value) {
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return linkMap.containsValue(value);
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}
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public Enumeration elements() {
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throw new RuntimeException("Method elements is not supported in LinkedProperties class");
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}
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public Set entrySet() {
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return linkMap.entrySet();
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}
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public boolean equals(Object o) {
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return linkMap.equals(o);
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}
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public Object get(Object key) {
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return linkMap.get(key);
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}
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public String getProperty(String key) {
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Object oval = get(key); //here the class Properties uses super.get()
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if (oval == null) return null;
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return (oval instanceof String) ? (String) oval : null; //behavior of standard properties
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}
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public boolean isEmpty() {
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return linkMap.isEmpty();
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}
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public Enumeration keys() {
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Set keys = linkMap.keySet();
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return Collections.enumeration(keys);
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}
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public Set keySet() {
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return linkMap.keySet();
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}
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public void list(PrintStream out) {
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this.list(new PrintWriter(out, true));
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}
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public void list(PrintWriter out) {
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out.println("-- listing properties --");
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for (Map.Entry e : (Set<Map.Entry>) this.entrySet()) {
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String key = (String) e.getKey();
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String val = (String) e.getValue();
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if (val.length() > 40) {
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val = val.substring(0, 37) + "...";
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}
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out.println(key + "=" + val);
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}
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}
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public Object put(Object key, Object value) {
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return linkMap.put(key, value);
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}
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public int size() {
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return linkMap.size();
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}
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public Collection values() {
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return linkMap.values();
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}
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}
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