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34 package info.magnolia.module.cache.filter;
35
36 import info.magnolia.module.cache.util.GZipUtil;
37
38 import java.io.IOException;
39 import java.util.Collection;
40
41 import javax.servlet.FilterChain;
42 import javax.servlet.http.HttpServletRequest;
43 import javax.servlet.http.HttpServletResponse;
44
45 import org.apache.commons.collections.MultiMap;
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54 public class InMemoryCachedEntry extends ContentCachedEntry {
55
56 private final byte[] gzippedContent;
57 private final byte[] plainContent;
58
59 public InMemoryCachedEntry(byte[] out, String contentType, String characterEncoding, int statusCode, MultiMap headers, long modificationDate, String originalUrl, int timeToLiveInSeconds) throws IOException {
60 super(contentType, characterEncoding, statusCode, headers, modificationDate, originalUrl, timeToLiveInSeconds);
61
62 if (GZipUtil.isGZipped(out)) {
63 this.gzippedContent = out;
64 boolean isGzippedResponse = headers.containsKey("Content-Encoding") && ((Collection)headers.get("Content-Encoding")).contains("gzip");
65 if(isGzippedResponse){
66 this.plainContent = GZipUtil.ungzip(out);
67 }
68
69 else{
70 this.plainContent = null;
71 }
72 } else {
73 this.gzippedContent = GZipUtil.gzip(out);
74 this.plainContent = out;
75 }
76 }
77
78 @Override
79 protected boolean canServeGzipContent() {
80 return true;
81 }
82
83 @Override
84 protected void writeContent(HttpServletRequest request, HttpServletResponse response, FilterChain chain, boolean acceptsGzipEncoding) throws IOException {
85 final byte[] body;
86 if (acceptsGzipEncoding || getPlainContent() == null) {
87 body = getGzippedContent();
88 } else {
89 body = getPlainContent();
90 }
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92 response.setContentLength(body.length);
93 response.getOutputStream().write(body);
94 }
95
96
97 public byte[] getPlainContent() {
98 return plainContent;
99 }
100
101 public byte[] getGzippedContent() {
102 return gzippedContent;
103 }
104
105 }