/*******************************************************************************
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*******************************************************************************/
package org.ofbiz.webapp.ftl;
import java.io.IOException;
import java.io.Writer;
import java.util.Locale;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import freemarker.core.Environment;
import freemarker.ext.beans.BeanModel;
import freemarker.ext.beans.NumberModel;
import freemarker.template.SimpleNumber;
import freemarker.template.SimpleScalar;
import freemarker.template.TemplateModelException;
import freemarker.template.TemplateScalarModel;
import freemarker.template.TemplateTransformModel;
import org.ofbiz.base.util.Debug;
import org.ofbiz.base.util.UtilFormatOut;
import org.ofbiz.base.util.UtilHttp;
/**
* OfbizAmountTransform - Freemarker Transform for content links
*/
public class OfbizAmountTransform implements TemplateTransformModel {
public static final String module = OfbizAmountTransform.class.getName();
public static final String SPELLED_OUT_FORMAT = "spelled-out";
@SuppressWarnings("unchecked")
private static String getArg(Map args, String key) {
String result = "";
Object o = args.get(key);
if (o != null) {
if (Debug.verboseOn()) Debug.logVerbose("Arg Object : " + o.getClass().getName(), module);
if (o instanceof TemplateScalarModel) {
TemplateScalarModel s = (TemplateScalarModel) o;
try {
result = s.getAsString();
} catch (TemplateModelException e) {
Debug.logError(e, "Template Exception", module);
}
} else {
result = o.toString();
}
}
return result;
}
@SuppressWarnings("unchecked")
private static Double getAmount(Map args, String key) {
if (args.containsKey(key)) {
Object o = args.get(key);
if (Debug.verboseOn()) Debug.logVerbose("Amount Object : " + o.getClass().getName(), module);
// handle nulls better
if (o == null) {
o = Double.valueOf(0.00);
}
if (o instanceof NumberModel) {
NumberModel s = (NumberModel) o;
return Double.valueOf(s.getAsNumber().doubleValue());
}
if (o instanceof SimpleNumber) {
SimpleNumber s = (SimpleNumber) o;
return Double.valueOf(s.getAsNumber().doubleValue());
}
if (o instanceof SimpleScalar) {
SimpleScalar s = (SimpleScalar) o;
return Double.valueOf(s.getAsString());
}
return Double.valueOf(o.toString());
}
return Double.valueOf(0.00);
}
@SuppressWarnings("unchecked")
public Writer getWriter(final Writer out, Map args) {
final StringBuilder buf = new StringBuilder();
final Double amount = OfbizAmountTransform.getAmount(args, "amount");
final String locale = OfbizAmountTransform.getArg(args, "locale");
final String format = OfbizAmountTransform.getArg(args, "format");
return new Writer(out) {
@Override
public void write(char cbuf[], int off, int len) {
buf.append(cbuf, off, len);
}
@Override
public void flush() throws IOException {
out.flush();
}
@Override
public void close() throws IOException {
try {
if (Debug.verboseOn()) Debug.logVerbose("parms: " + amount + " " + format + " " + locale, module);
Locale localeObj = null;
if (locale.length() < 1) {
// Load the locale from the session
Environment env = Environment.getCurrentEnvironment();
BeanModel req = (BeanModel) env.getVariable("request");
if (req != null) {
HttpServletRequest request = (HttpServletRequest) req.getWrappedObject();
localeObj = UtilHttp.getLocale(request);
} else {
localeObj = env.getLocale();
}
} else {
localeObj = new Locale(locale);
}
if (format.equals(OfbizAmountTransform.SPELLED_OUT_FORMAT)) {
out.write(UtilFormatOut.formatSpelledOutAmount(amount.doubleValue(), localeObj));
} else {
out.write(UtilFormatOut.formatAmount(amount.doubleValue(), localeObj));
}
} catch (TemplateModelException e) {
throw new IOException(e.getMessage());
}
}
};
}
}