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Redkale-Plugins -- java framework
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package org.redkalex.htel;
import java.io.*;
import java.util.Collection;
import java.util.logging.*;
import org.redkale.annotation.Resource;
import org.redkale.convert.Convert;
import org.redkale.net.http.*;
import org.redkale.util.*;
/**
* JFinal 的 Enjoy 4.9.08模板引擎
*
* @author zhangjx
*/
public class EnjoyTemplateRender implements org.redkale.net.http.HttpRender {
private final Logger logger = Logger.getLogger(getClass().getSimpleName());
@Resource(name = "APP_HOME")
private File home;
@Resource(name = "SERVER_ROOT")
private String root;
private com.jfinal.template.Engine engine;
@Override
public void init(HttpContext context, AnyValue config) {
String engineName = "engine:" + context.getServerAddress().getHostString() + ":"
+ context.getServerAddress().getPort();
this.engine = com.jfinal.template.Engine.use(engineName);
if (this.engine == null) this.engine = com.jfinal.template.Engine.create(engineName);
this.engine.setDevMode(logger.isLoggable(Level.FINE));
final com.jfinal.template.EngineConfig engineConfig = this.engine.getEngineConfig();
String defroot = root == null ? new File(home, "templates").getPath() : root;
String path = config == null ? defroot : config.getOrDefault("path", defroot);
if (path.isEmpty()) path = defroot; // path可能会配置为""
engineConfig.setBaseTemplatePath(path);
if (config != null) {
for (AnyValue kit : config.getAnyValues("sharekit")) {
String name = kit.getValue("name");
if (name == null || name.isEmpty()) continue;
String resname = kit.getValue("resname");
String resvalue = kit.getValue("resvalue");
if (resvalue == null || resvalue.isEmpty()) {
logger.log(Level.WARNING, "sharekit resvalue is empty");
continue;
}
if (engineConfig.getSharedObjectMap() != null
&& engineConfig.getSharedObjectMap().containsKey(name)) continue;
try {
Class clazz = Thread.currentThread().getContextClassLoader().loadClass(resvalue);
Object val = context.getResourceFactory().find(resname == null ? "" : resname, clazz);
RedkaleClassLoader.putReflectionPublicConstructors(clazz, clazz.getName());
if (val == null) { // class可能不是Service，不会被自动注入
val = clazz.getConstructor().newInstance();
}
engineConfig.addSharedObject(name, val);
} catch (Exception e) {
logger.log(Level.WARNING, "sharekit name=" + name + " inject error", e);
}
}
}
if (engineConfig.getDirective("size") == null) {
engineConfig.addDirective("size", Size.class);
RedkaleClassLoader.putReflectionPublicConstructors(Size.class, Size.class.getName());
engineConfig.addSharedMethod(new Size());
}
if (engineConfig.getDirective("brescape") == null) {
engineConfig.addDirective("brescape", BrEscape.class);
RedkaleClassLoader.putReflectionPublicConstructors(BrEscape.class, BrEscape.class.getName());
{
Class clz = com.jfinal.template.ext.directive.EscapeDirective.class;
RedkaleClassLoader.putReflectionPublicConstructors(clz, clz.getName());
clz = com.jfinal.kit.StrKit.class;
engineConfig.addSharedMethod(new com.jfinal.kit.StrKit());
RedkaleClassLoader.putReflectionPublicConstructors(clz, clz.getName());
clz = com.jfinal.kit.HashKit.class;
engineConfig.addSharedMethod(new com.jfinal.kit.HashKit());
RedkaleClassLoader.putReflectionPublicConstructors(clz, clz.getName());
clz = com.jfinal.kit.PropKit.class;
RedkaleClassLoader.putReflectionPublicConstructors(clz, clz.getName());
}
}
}
@Override
public void renderTo(HttpRequest request, HttpResponse response, Convert convert, HttpScope scope) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
engine.getTemplate(scope.getReferid()).render(scope.getAttributes(), out);
response.finish(out.toByteArray());
}
public static class Size extends com.jfinal.template.Directive {
@Override
public void exec(
com.jfinal.template.Env env,
com.jfinal.template.stat.Scope scope,
com.jfinal.template.io.Writer writer) {
try {
writer.write(size(exprList.eval(scope)));
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new com.jfinal.template.TemplateException(e.getMessage(), location, e);
}
}
public static int size(Object value) {
if (value == null) {
return (0);
} else if (value instanceof String) {
return (value.toString().length());
} else if (value instanceof boolean[]) {
return (((boolean[]) value).length);
} else if (value instanceof byte[]) {
return (((byte[]) value).length);
} else if (value instanceof short[]) {
return (((short[]) value).length);
} else if (value instanceof char[]) {
return (((char[]) value).length);
} else if (value instanceof int[]) {
return (((int[]) value).length);
} else if (value instanceof long[]) {
return (((long[]) value).length);
} else if (value instanceof float[]) {
return (((float[]) value).length);
} else if (value instanceof double[]) {
return (((double[]) value).length);
} else if (value instanceof Collection) {
return (((Collection) value).size());
} else {
return (((Object[]) value).length);
}
}
}
public static class BrEscape extends com.jfinal.template.Directive {
@Override
public void exec(
com.jfinal.template.Env env,
com.jfinal.template.stat.Scope scope,
com.jfinal.template.io.Writer writer) {
try {
Object value = exprList.eval(scope);
if (value instanceof String) {
escape((String) value, writer);
} else if (value instanceof Number) {
Class c = value.getClass();
if (c == Integer.class) {
writer.write((Integer) value);
} else if (c == Long.class) {
writer.write((Long) value);
} else if (c == Double.class) {
writer.write((Double) value);
} else if (c == Float.class) {
writer.write((Float) value);
} else {
writer.write(value.toString());
}
} else if (value != null) {
escape(value.toString(), writer);
}
} catch (RuntimeException e) {
throw e;
} catch (Exception e) {
throw new com.jfinal.template.TemplateException(e.getMessage(), location, e);
}
}
private void escape(String str, com.jfinal.template.io.Writer w) throws IOException {
for (int i = 0, len = str.length(); i < len; i++) {
char cur = str.charAt(i);
switch (cur) {
case '<':
w.write("<");
break;
case '>':
w.write(">");
break;
case '"':
w.write(""");
break;
case '\'':
// w.write("'"); // IE 不支持 ' 考虑 '
w.write("'");
break;
case '&':
w.write("&");
break;
case '\n':
w.write("
");
break;
default:
w.write(str, i, 1);
break;
}
}
}
}
}
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