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| package com.opensymphony.oscache.web.filter; |
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| import com.opensymphony.oscache.base.CacheEntry; |
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| import com.opensymphony.oscache.base.EntryRefreshPolicy; |
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| import com.opensymphony.oscache.base.NeedsRefreshException; |
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| public class ExpiresRefreshPolicy implements EntryRefreshPolicy { |
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| private long refreshPeriod; |
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| public ExpiresRefreshPolicy(int refreshPeriod) {
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| this.refreshPeriod = refreshPeriod * 1000L;
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| } |
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| public boolean needsRefresh(CacheEntry entry) {
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| long currentTimeMillis = System.currentTimeMillis();
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| if ((refreshPeriod >= 0) && (currentTimeMillis >= (entry.getLastUpdate() + refreshPeriod))) {
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| return true;
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| } else if (entry.getContent() instanceof ResponseContent) {
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| ResponseContent responseContent = (ResponseContent) entry.getContent();
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| return currentTimeMillis >= responseContent.getExpires();
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| } else { |
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| return false;
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| } |
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| } |
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| public long getRefreshPeriod() {
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| return refreshPeriod / 1000;
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| } |
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| public void setRefreshPeriod(long refreshPeriod) {
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| this.refreshPeriod = refreshPeriod * 1000L;
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| } |
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| } |