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1
25 package org.ofbiz.webapp.ftl;
26
27 import java.io.IOException  ;
28 import java.io.Writer ;
29 import java.util.Map ;
30 import javax.servlet.ServletContext ;
31 import javax.servlet.http.HttpServletRequest ;
32
33 import freemarker.core.Environment;
34 import freemarker.ext.beans.BeanModel;
35 import freemarker.template.SimpleScalar;
36 import freemarker.template.TemplateModelException;
37 import freemarker.template.TemplateTransformModel;
38
39 import org.ofbiz.base.util.Debug;
40 import org.ofbiz.base.util.cache.UtilCache;
41
42 import org.jpublish.RepositoryWrapper;
43
44
50 public class JpCacheIncludeTransform implements TemplateTransformModel {
51
52 public static final String module = JpCacheIncludeTransform.class.getName();
53 protected static UtilCache pageCache = new UtilCache("webapp.JpInclude", 0, 0, 0, false, false);
54
55 public Writer getWriter(final Writer writer, Map args) throws TemplateModelException, IOException {
56 Environment env = Environment.getCurrentEnvironment();
57 BeanModel req = (BeanModel) env.getVariable("request");
58 BeanModel jpr = (BeanModel) env.getVariable("pages");
59
60 final HttpServletRequest request = (HttpServletRequest ) req.getWrappedObject();
61 final ServletContext ctx = (ServletContext ) request.getAttribute("servletContext");
62 final RepositoryWrapper wrapper = (RepositoryWrapper) jpr.getWrappedObject();
63 final String contextName = ctx.getServletContextName();
64 final long expireTime = this.getExpireTime(args);
65 final String include = this.getInclude(args);
66
67 return new Writer (writer) {
68 public void write(char cbuf[], int off, int len) throws IOException {
69 writer.write(cbuf, off, len);
70 }
71
72 public void flush() throws IOException {
73 writer.flush();
74 }
75
76 public void close() throws IOException {
77 Debug.log("Checking for cached content (" + contextName + "." + include + ")", module);
78 String content = (String ) pageCache.get(contextName + "." + include);
79 if (content == null) {
80 content = wrapper.get(include);
81 pageCache.put(contextName + "." + include, content, expireTime);
82 Debug.log("No content found; cached result for - " + expireTime, module);
83 }
84 if (content != null) {
85 writer.write(content);
86 }
87 }
88 };
89 }
90
91 public long getExpireTime(Map args) {
92 Object o = args.get("expireTime");
93 Debug.log("ExpireTime Object - " + o, module);
94 long expireTime = 0;
95 if (o != null) {
96 if (o instanceof SimpleScalar) {
97 SimpleScalar s = (SimpleScalar) o;
98 String ets = s.getAsString();
99 Debug.log("ExpireTime String - " + ets, module);
100 try {
101 expireTime = Long.parseLong(ets);
102 } catch (Exception e) {
103 Debug.logError(e, module);
104 }
105 }
106 }
107 return expireTime;
108 }
109
110 public String getInclude(Map args) {
111 Object o = args.get("include");
112 Debug.log("Include Object - " + o, module);
113 String include = null;
114 if (o != null) {
115 if (o instanceof SimpleScalar) {
116 SimpleScalar s = (SimpleScalar) o;
117 include = s.getAsString();
118 Debug.log("Include String - " + include, module);
119 }
120 }
121 return include;
122 }
123 }
124 |
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